WO2022227600A1 - 一种电动汽车的充电盖控制方法、设备及电动汽车 - Google Patents

一种电动汽车的充电盖控制方法、设备及电动汽车 Download PDF

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Publication number
WO2022227600A1
WO2022227600A1 PCT/CN2021/138189 CN2021138189W WO2022227600A1 WO 2022227600 A1 WO2022227600 A1 WO 2022227600A1 CN 2021138189 W CN2021138189 W CN 2021138189W WO 2022227600 A1 WO2022227600 A1 WO 2022227600A1
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WO
WIPO (PCT)
Prior art keywords
charging
charging cover
cover
state
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/138189
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English (en)
French (fr)
Inventor
王超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Jetty Automotive Parts Co Ltd
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Changchun Jetty Automotive Parts Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changchun Jetty Automotive Parts Co Ltd filed Critical Changchun Jetty Automotive Parts Co Ltd
Priority to MX2023012772A priority Critical patent/MX2023012772A/es
Priority to KR1020237035062A priority patent/KR102919822B1/ko
Priority to JP2023565594A priority patent/JP7761667B2/ja
Priority to BR112023022395A priority patent/BR112023022395A2/pt
Priority to EP21939059.8A priority patent/EP4331902A4/en
Priority to US18/555,696 priority patent/US20240200388A1/en
Publication of WO2022227600A1 publication Critical patent/WO2022227600A1/zh
Priority to ZA2023/09770A priority patent/ZA202309770B/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/24—Superstructure sub-units with access or drainage openings having movable or removable closures; Sealing means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/20—Means to switch the anti-theft system on or off
    • B60R25/2045—Means to switch the anti-theft system on or off by hand gestures
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/16—Driver interactions by display
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/22—Driver interactions by presence detection
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2250/00—Driver interactions
    • B60L2250/30—Driver interactions by voice
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F2015/765—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using optical sensors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/73—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects
    • E05F2015/767—Power-operated mechanisms for wings with automatic actuation responsive to movement or presence of persons or objects using cameras
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/20—Movements or behaviour, e.g. gesture recognition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the present invention relates to the technical field of electric vehicles, in particular to a charging cover control method and device for an electric vehicle, and an electric vehicle.
  • Electric vehicles have the characteristics of no pollution, low noise and high energy efficiency, and are one of the strategic emerging industries in my country.
  • Electric vehicles usually use the on-board power supply as power, and use an electric motor instead of a fuel engine to drive the car.
  • the most widely used power source for electric vehicles is the battery, and the charging port of the battery is usually provided with a charging cover for protection.
  • the driver Before charging the electric vehicle, the driver needs to press the inner button to control the charging cover to open; after charging, the charging cover needs to be manually closed.
  • the above operations are complicated, and if the driver forgets to open the charging cover before getting off the car, he needs to return to the car and press the button again, which does not meet the needs of convenience.
  • Embodiments of the present invention provide a method and device for controlling a charging cover of an electric vehicle, and an electric vehicle, which are used to automatically control the opening or closing of the charging cover of the electric vehicle.
  • an embodiment of the present invention provides a charging cover control method for an electric vehicle, including:
  • the state of the charging cover includes an open state and a closed state.
  • the charging cover control method by detecting biological signals, it can be determined whether there is a user approaching near the charging cover, and after detecting the biological signals, an image is captured in front of the charging cover, and an image of the user performing gesture actions is collected. . Then match the collected image with the pre-stored set gesture image. When the match is successful, it means that the gesture action performed by the user in front of the charging cover is a pre-stored specific gesture action, and the charging is automatically switched after the gesture matching is successful. state of the cover.
  • the user can manually control the opening or closing of the charging cover by performing a specific gesture action in front of the charging cover, which does not require the user to manually operate the charging cover and other cumbersome steps, thereby improving the convenience of charging.
  • the above-mentioned biological signals include infrared signals, and by detecting the infrared signals near the charging cover, it can be determined whether there is a biological approach near the charging cover.
  • the pre-stored images of the preset gesture include multiple, and the collected images are matched with the pre-stored images of the preset gesture, including:
  • the collected images can be sequentially matched with the images of multiple preset gestures, as long as When the similarity between the collected image and at least one image of the set gesture is greater than or equal to the preset threshold, it means that the gesture is successfully matched, and the switching state of the charging cover can be automatically controlled at this time.
  • Using a plurality of images with different set gestures for gesture matching can diversify the control gestures for switching the state of the charging cover, and the user can control the charging cover to switch the state only by performing one of the specific gestures.
  • the user fails to use one gesture to control the motion other gestures can be used to try to improve the effectiveness and flexibility of the gesture control.
  • Using multiple images of similar gestures to perform gesture matching can efficiently match the user's gestures, and the user can achieve successful gesture matching without performing extremely standard gestures, thereby improving the success rate of gesture matching.
  • the method further includes:
  • Detect the distance between the object near the charging cover and the charging cover determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to a predetermined safe distance; the distance between the object near the charging cover and the charging cover When the distance is greater than or equal to the safety distance, it is determined whether the charging device is connected to the current charging base; when there is no charging device connected to the current charging base, the state of the charging cover is switched. When the distance between the object near the charging cover and the charging cover is less than the safe distance, or when a charging device is connected to the current charging base, the current state of the charging cover is maintained.
  • the object near the charging cover When the object near the charging cover is within a safe distance, it can be considered that there is an object near the charging cover, and switching the state of the charging cover may injure the user or damage the charging cover; and when the charging stand is connected to the charging device Switching the state of the charging cover down will cause a collision between the charging cover and the charging device. Therefore, before switching the charging cover state, it is necessary to make sure that the distance between the object near the charging cover and the charging cover is greater than or equal to a safe distance, and the current charging base is not charging. When the device is connected, you can switch the state of the charging cover, otherwise you need to keep the charging cover in the current state.
  • switching the state of the charging cover specifically includes:
  • the charging cover By detecting the voltage signal at the mechanical connection position of the charging cover, it is determined whether the current state of the charging cover is open or closed. When the current charging cover is open, the specific action performed by the user is to close the charging cover. The charging cover is switched to the closed state; when the current charging cover is in the closed state, the specific action performed by the user is to open the charging cover, and at this time, the charging cover is switched to the open state.
  • a first prompt message indicating that an object near the charging cover is blocked may also be issued, and the first prompt message may be used. The reason why the user cannot switch the state of the charging cover is prompted. After the problem is eliminated, the user can perform a specific action again to trigger the switching state of the charging cover.
  • a second prompt message indicating that the charging stand is connected to the charging device may be issued, and the second prompt message may be used to prompt the user that the state of the charging cover cannot be switched currently. The reason is that after unplugging the charging device, the user can perform a specific action again to trigger the charging cover to switch states.
  • an optical ranging device is used to emit light with a set wavelength near the charging cover. After the light is incident on an object near the charging cover, it will be reflected back by the object. Then the optical ranging device is used.
  • the distance between the object and the charging cover can be obtained by half the product of the time it takes to emit light of the set wavelength to the time it takes to receive the reflected light of the set wavelength and the speed of light. According to the distance, it can be determined whether the object near the charging cover is within the safe distance of the charging cover, so as to decide whether to trigger the subsequent operation.
  • a first connection confirmation point (CC1) is provided at the position of the port of the charging stand, and it can be determined whether a charging device is connected to the charging stand by detecting the voltage signal of CC1. If the voltage signal of CC1 is detected, it means that a charging device (eg, a charging gun) is connected to the charging base, and if the voltage signal of CC1 is not detected, it means that there is no charging device connected to the charging base.
  • a charging device eg, a charging gun
  • an embodiment of the present invention provides a charging cover control device, including: a control module, a biological signal detection module, and an image acquisition module; wherein the control module is connected to a charging cover motor of an electric vehicle, and the control module sends control to the charging cover electrode Instructions, the charging cover can be controlled to open or close by driving the charging cover motor.
  • a biological signal detection module connected with the control module, is used to detect biological signals near the charging cover;
  • the image acquisition module connected with the control module, is used for image acquisition in front of the charging cover.
  • the control module is used to collect images in front of the charging cover when biological signals are detected; match the collected images with the pre-stored images of the set gestures; match the collected images with the pre-stored images of the set gestures
  • the state of the charging cover is switched; the state of the charging cover includes an open state and a closed state.
  • the control module can drive the bio-signal detection module to detect the bio-signal near the charging cover. By detecting the bio-signal, it can be determined whether there is a user approaching the charging cover.
  • the control module drives the image acquisition module to image the front of the charging cover. collection.
  • the image acquisition module sends the collected image to the control module, and the control module matches the collected image with the pre-stored image of the set gesture.
  • the match is successful, it means that the gesture action performed by the user in front of the charging cover is a pre-stored gesture.
  • a specific gesture action automatically switches the state of the charging cover after the gesture is matched successfully.
  • the user can automatically control the opening or closing of the charging cover by performing a specific gesture action in front of the charging cover, without requiring the user to manually operate the charging cover and other cumbersome steps, thereby improving the convenience of charging.
  • the above-mentioned biological signals include infrared signals, and by detecting the infrared signals near the charging cover, it can be determined whether there is a biological approach near the charging cover.
  • the image acquisition module is driven to collect images in front of the charging cover only when the biological signal detection module detects that there is a biological signal near the charging cover, so as to avoid continuous use of images in front of the charging cover, and a large number of The image data is used for image matching operation, so that too much invalid data can be avoided, and the effectiveness of gesture matching can be improved.
  • a plurality of images of preset gestures may be pre-stored in the control module, and the images of these preset gestures may be different or similar.
  • the images of multiple preset gestures are matched in sequence. As long as the similarity between the collected image and at least one image of the preset gesture is greater than or equal to the preset threshold, the gesture matching is successful, and the charging cover switching state can be automatically controlled at this time. .
  • Using a plurality of images with different set gestures for gesture matching can diversify the control gestures for switching the state of the charging cover, and the user can control the charging cover to switch the state only by performing one of the specific gestures.
  • the user fails to use one gesture to control the motion other gestures can be used to try to improve the effectiveness and flexibility of the gesture control.
  • Using multiple images of similar gestures to perform gesture matching can efficiently match the user's gestures, and the user can achieve successful gesture matching without performing extremely standard gestures, thereby improving the success rate of gesture matching.
  • the charging cover control device further includes: an optical ranging module and a charging stand detection module;
  • the optical ranging module connected with the control module, is used to detect the distance between the object near the charging cover and the charging cover;
  • the charging stand detection module is connected with the control module to detect the connection state of the charging stand;
  • the control module is used to determine whether to switch the charging according to the detected distance between the object near the charging cover and the charging cover and the connection status of the current charging base when the collected image is successfully matched with the image of the pre-stored set gesture
  • the state of the cover; the state of the charging cover includes an open state and a closed state.
  • the optical ranging module needs to be used to further detect whether there is an object near the charging cover, and the charging base detection module can further detect The current connection status of the charging base, the optical ranging module and the charging base detection module send the detection results to the control module, and the control module can determine whether to switch the state of the charging cover according to the above detection results. Therefore, the user can automatically control the opening or closing of the charging cover by performing a specific action in front of the charging cover and the charging cover is in a safe state, without requiring the user to manually operate the charging cover and other cumbersome steps, thereby improving the convenience of charging.
  • control module is specifically configured to determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to a predetermined safety distance; the distance between the object near the charging cover and the charging cover is greater than or equal to or equal to a safe distance, determine whether the current charging base has a charging device connected; when there is no charging device connected to the current charging base, drive the charging cover motor to switch the state of the charging cover; between objects near the charging cover and the charging cover When the distance is less than the safe distance, or when a charging device is connected to the current charging base, the motor of the charging cover is driven to maintain the current state of the charging cover.
  • the object near the charging cover When the object near the charging cover is within a safe distance, it can be considered that there is an object near the charging cover, and switching the state of the charging cover may injure the user or damage the charging cover; and when the charging stand is connected to the charging device Switching the state of the charging cover down will cause a collision between the charging cover and the charging device. Therefore, before switching the charging cover state, it is necessary to make sure that the distance between the object near the charging cover and the charging cover is greater than or equal to a safe distance, and the current charging base is not charging. When the device is connected, you can switch the state of the charging cover, otherwise you need to keep the charging cover in the current state.
  • the control module sends a detection control instruction to the optical ranging module, and the optical ranging module starts to detect the distance between the object near the charging cover and the charging cover according to the detection control instruction.
  • the optical ranging module can use the mature optical ranging device in the prior art, by emitting light with a set wavelength near the charging cover, after the light is incident on the object near the charging cover, it will be reflected back by the object, then use The distance between the object and the charging cover can be obtained by half of the product of the time taken by the optical ranging device to emit light of the set wavelength to the time it receives the reflected light of the set wavelength and the speed of light.
  • the optical ranging module sends the detected distance to the control module, and the control module can determine whether the object near the charging cover is within the safe distance of the charging cover according to the distance. When the distance between the object near the charging cover and the charging cover is less than When the safety distance is reached, the control module drives the charging cover motor to keep the current state of the charging cover unchanged. When the distance between the object near the charging cover and the charging cover is greater than or equal to the safety distance, the connection state of the charging base is further determined.
  • the control module sends a detection control instruction to the charging stand detection module.
  • the charging stand detection module detects the voltage signal of CC1 according to the detection control instruction, and sends the detected voltage signal to the control module.
  • the control module detects that the voltage signal of CC1 is 0, it can determine that there is no charging device connected to the charging base.
  • the control module drives the charging cover motor to switch the state of the charging cover; when the detected voltage signal of CC1 is not 0 , it can be determined that there is a charging device connected to the charging base.
  • the control module drives the charging cover motor to keep the current state of the charging cover unchanged.
  • the charging cover control device further includes: a charging cover state detection module, connected to the control module, for detecting the state of the charging cover.
  • the control module sends a detection control instruction to the charging cover state detection module, and the charging cover state detection module detects the voltage signal of the mechanical connection position of the charging cover according to the detection control instruction, and sends the detected voltage signal to the control module.
  • the control module determines the state of the current charging cover according to the detected voltage signal. When the current charging cover is open, the charging cover motor is driven to close the charging cover; when the current charging cover is closed, the charging cover motor is driven to open the charging cover. Thereby, the switching of the state of the charging cover is realized.
  • the charging cover control device further includes: a message prompting module connected to the control module; the message prompting module may be a voice player, an indicator light, a display screen, and the like.
  • the control module when it is determined that the distance between the object near the charging cover and the charging cover is less than the safe distance, the control module sends a first prompt message to the message prompting module to indicate that there is an object blocking the charging cover; the message prompts The module prompts the user that there is an object blocking the charging cover according to the first prompt message, and after eliminating the problem, the user can perform a specific action again to trigger the charging cover to switch states.
  • control module sends a second prompt message to the message prompting module to indicate that the charging stand has been connected to the charging equipment when it is determined that the current charging stand is connected to the charging equipment; the message prompting module is based on the second prompt message. Prompt the user that the charging cradle is connected to the charging device. After unplugging the charging device, the user can perform a specific action again to trigger the charging cover to switch states.
  • an embodiment of the present invention provides an electric vehicle, the electric vehicle includes any one of the above-mentioned charging cover control devices, and the charging cover control device is connected to the charging cover motor.
  • the electric vehicle can automatically control the charging cover to open or close when the user performs a specific gesture action in front of the charging cover.
  • FIG. 1 is one of the flowcharts of a charging cover control method provided by an embodiment of the present invention
  • FIG. 2 is the second flowchart of the charging cover control method provided by the embodiment of the present invention.
  • FIG. 3 is a third flowchart of a method for controlling a charging cover provided by an embodiment of the present invention.
  • FIG. 4 is one of the schematic structural diagrams of the charging cover control device provided by the embodiment of the present invention.
  • FIG. 5 is a second schematic structural diagram of a charging cover control device provided by an embodiment of the present invention.
  • 11- control module 12- biological signal detection module, 13- image acquisition module, 14- optical ranging module, 15- charging base detection module, 16- charging cover status detection module, 17- message prompt module.
  • Electric vehicles use a battery pack as a power source, and use a motor to convert electrical energy into mechanical energy to drive the vehicle.
  • the electric drive and control system of electric vehicles is the core of electric vehicles, and it is also the biggest difference from internal combustion engine vehicles. Other devices are basically the same as internal combustion engine vehicles.
  • the electric drive and control system consists of a drive motor, a power supply, and a speed control device for the motor.
  • Electric vehicles are usually provided with a charging stand at the fuselage or the front of the vehicle.
  • the charging stand is connected to the battery in the vehicle. After inserting the charging gun head on the charging pile into the charging gun seat, the vehicle can be charged.
  • a charging cover is usually set on the charging base.
  • the driver needs to press the inner button to control the charging cover to open; after charging, the charging cover needs to be manually closed. The above operations are complicated, and if the driver forgets to open the charging cover before getting off the car, he needs to return to the car and press the button again, which does not meet the needs of convenience.
  • an embodiment of the present invention provides a charging cover control method, which can automatically control the opening or closing of the charging cover by detecting a gesture of a person.
  • FIG. 1 is one of the flowcharts of a charging cover control method provided by an embodiment of the present invention.
  • the charging cover control method includes:
  • the state of the charging cover includes an open state and a closed state.
  • the manner of detecting the biological signal can be real-time detection or periodic detection, which is not limited herein.
  • the charging cover control method by detecting biological signals, it can be determined whether there is a user approaching near the charging cover, and after detecting the biological signals, an image is captured in front of the charging cover, and an image of the user performing gesture actions is collected. . Then match the collected image with the pre-stored set gesture image. When the match is successful, it means that the gesture action performed by the user in front of the charging cover is a pre-stored specific gesture action, and the charging is automatically switched after the gesture matching is successful.
  • state of the cover refers to switching the charging cover to a closed state when the charging cover is open; and switching the charging cover to an open state when the charging cover is closed.
  • the specific gesture action performed by the user can be switched to another state when the charging cover is in any one of the above states.
  • the user can control the opening or closing of the charging cover by performing a specific gesture action in front of the charging cover, without requiring the user to manually operate the charging cover and other cumbersome steps, thereby improving the convenience of charging.
  • the above-mentioned biological signals may include infrared signals.
  • the infrared signal is a kind of signal emitted by the living body that is different from other objects.
  • the wavelength of the infrared signal is greater than the wavelength of visible light, so it will not interfere with other objects seen by the user's eyes. judgment of things.
  • the biological signal can also use other signals that can distinguish the human body from other objects, which is not limited here.
  • the image acquisition is performed on the front of the charging cover only when biological signals near the charging cover are detected, which can avoid the continuous use of images in front of the charging cover and the image matching operation for a large amount of image data, thereby avoiding Generate too much invalid data to improve the effectiveness of gesture matching.
  • a plurality of set gesture images may be stored in advance, and these set gesture images may be different or similar. Then, after the user's gesture image is collected, the collected image may be combined with the multiple set gesture images. The images are matched in sequence. As long as the similarity between the collected image and at least one of the set gesture images is greater than or equal to the preset threshold, the gesture matching is successful, and the charging cover switching state can be automatically controlled at this time.
  • Using multiple images with different set gestures for gesture matching can diversify the control gestures for switching the state of the charging cover, so that the user can control the charging cover to switch states only by performing one of the specific gestures.
  • other gestures can be used to try to improve the effectiveness and flexibility of the gesture control.
  • Using multiple images of similar gestures to perform gesture matching can efficiently match the user's gestures, and the user can achieve successful gesture matching without performing extremely standard gestures, thereby improving the success rate of gesture matching.
  • the gesture matching after the gesture matching is successful, it is necessary to further detect whether there is an object blocking the charging cover, and further detect the current connection status of the charging base, so as to determine whether to switch the state of the charging cover.
  • FIG. 2 is a second flowchart of a method for controlling a charging cover provided by an embodiment of the present invention.
  • step S40 after the collected image is successfully matched with the image of the pre-stored set gesture, and before the state of the charging cover is switched, the following steps are further included:
  • step S402. Determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to a predetermined safety distance; when the distance between the object near the charging cover and the charging cover is greater than or equal to the safety distance, perform step S403; When the distance between the object near the charging cover and the charging cover is less than the safe distance, perform step S405;
  • the safety distance is the space distance required when the charging cover is switched from the closed state to the open state.
  • the safety distance is the space distance required when the charging cover is switched from the closed state to the open state.
  • the user's hand is too close to the charging cover, the user may be injured when switching the state of the charging cover; and if there are other objects in front of the charging cover, the charging cover may also be damaged when switching the state of the charging cover. Therefore, in the embodiment of the present invention, it is necessary to determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to the safety distance.
  • the charging base may be charging, or the charging device has not been pulled out. If the charging cover is switched to close at this time, it will cause a collision between the charging cover and the charging device. In order to avoid this problem, it is necessary to determine the connection status of the current charging base.
  • the state of the charging cover can be switched; and when either or both of the above conditions are not satisfied , you need to keep the charging cover in its current state.
  • FIG. 3 is a third flowchart of a method for controlling a charging cover provided by an embodiment of the present invention.
  • step S404 specifically includes the following steps:
  • the specific implementation process it can be determined whether the current state of the charging cover is open or closed by detecting the voltage signal at the mechanical connection position of the charging cover.
  • the specific action performed by the user is for the purpose of When the charging cover is closed, the charging cover is switched to the closed state; when the current charging cover is closed, the specific action performed by the user is to open the charging cover, and the charging cover is switched to the open state at this time.
  • a first prompt message indicating that there is an object blocking the charging cover can also be issued, and the first prompt message can be used to prompt the user
  • the reason for switching the state of the charging cover, after eliminating the problem, the user can perform a specific action again to trigger the switching state of the charging cover.
  • a second prompt message indicating that the charging cradle has been connected to the charging device can be issued, and the second prompt message can be used to prompt the user why the state of the charging cover cannot be switched at present.
  • the user can perform a specific action again to trigger the charging cover to switch states.
  • the distance between the object near the charging cover and the charging cover is determined according to the time taken from emitting the light of the set wavelength to receiving the light of the set wavelength and the speed of light.
  • An optical ranging device is used to emit light with a set wavelength near the charging cover. After the light is incident on an object near the charging cover, it will be reflected back by the object. Then the optical ranging device is used to emit light with a set wavelength to Half the product of the time it takes to receive the reflected light of the set wavelength and the speed of light gives the distance between the object and the charging cover. According to the distance, it can be determined whether the object near the charging cover is within the safe distance of the charging cover, so as to decide whether to trigger the subsequent operation.
  • connection status of the charging base can be detected by the following methods:
  • a first connection confirmation point (CC1) is set at the position of the port of the charging stand. By detecting the voltage signal of CC1, it can be determined whether a charging device is connected to the charging stand. If the voltage signal of CC1 is detected, it means that a charging device (eg, a charging gun) is connected to the charging base, and if the voltage signal of CC1 is not detected, it means that there is no charging device connected to the charging base.
  • a charging device eg, a charging gun
  • FIG. 4 is a schematic structural diagram of a charging cover control device provided by an embodiment of the present invention.
  • the charging cover control device includes: a control module 11 , a biological signal detection module 12 and an image acquisition module 13 ; wherein the control module 11 is connected to the charging cover motor of the electric vehicle, and the control module 11 sends a control command to the charging cover electrode , the charging cover can be opened or closed by driving the charging cover motor.
  • the biological signal detection module 12 connected with the control module 11, is used for detecting biological signals near the charging cover;
  • the image acquisition module 13 is connected to the control module 11 and is used for image acquisition of the front of the charging cover.
  • the control module 11 is used to capture an image in front of the charging cover when a biological signal is detected; match the captured image with a pre-stored image of the set gesture; When the matching is successful, the state of the charging cover is switched; the state of the charging cover includes an open state and a closed state.
  • the control module 11 can drive the bio-signal detection module 12 to detect the bio-signal near the charging cover. By detecting the bio-signal, it can be determined whether there is a user approaching the charging cover. After detecting the bio-signal, the control module 11 drives the image acquisition module 13 to charge the battery. Image acquisition was performed in front of the lid. The image acquisition module 13 sends the acquired image to the control module 11, and the control module 11 matches the acquired image with the pre-stored image of the set gesture. When the matching is successful, it means that the gesture performed by the user in front of the charging cover is as follows: Pre-stored specific gesture actions automatically switch the state of the charging cover after the gesture is successfully matched. As a result, the user can automatically control the opening or closing of the charging cover by performing a specific gesture action in front of the charging cover, without requiring the user to manually operate the charging cover and other cumbersome steps, thereby improving the convenience of charging.
  • the above-mentioned biological signal may include an infrared signal, and the above-mentioned biological signal detection module 12 may adopt an infrared detection device.
  • the above-mentioned biological signals can also use signals that can distinguish the human body from other objects, which are not limited here.
  • the biological signal detection module 12 may use a detection device capable of detecting corresponding signals.
  • the image acquisition module 13 is driven to collect images in front of the charging cover only when the biological detection module 12 detects that there is a biological signal near the charging cover, so as to avoid continuous use of images in front of the charging cover and a large amount of image data.
  • the operation of image matching is performed, so that too much invalid data can be avoided, and the effectiveness of gesture matching can be improved.
  • a plurality of set gesture images may be pre-stored in the control module 11, and these set gesture images may be different or similar. Then, after the user's gesture image is collected, the collected image can be The images of multiple preset gestures are matched in sequence. As long as the similarity between the collected image and at least one image of the preset gesture is greater than or equal to the preset threshold, the gesture matching is successful, and the charging cover switching state can be automatically controlled at this time. .
  • Using a plurality of images with different set gestures for gesture matching can diversify the control gestures for switching the state of the charging cover, and the user can control the charging cover to switch the state only by performing one of the specific gestures.
  • the user fails to use one gesture to control the motion other gestures can be used to try to improve the effectiveness and flexibility of the gesture control.
  • Using multiple images of similar gestures to perform gesture matching can efficiently match the user's gestures, and the user can achieve successful gesture matching without performing extremely standard gestures, thereby improving the success rate of gesture matching.
  • the gesture matching after the gesture matching is successful, it is necessary to further detect whether there is an object blocking the charging cover, and further detect the current connection status of the charging base, so as to determine whether to switch the state of the charging cover.
  • FIG. 5 is a second schematic structural diagram of a charging cover control device provided by an embodiment of the present invention.
  • the charging cover control device further includes: an optical ranging module 14 and a charging stand detection module 15 .
  • the optical ranging module 14, connected with the control module 11, is used to detect the distance between the object near the charging cover and the charging cover;
  • the charging stand detection module 15 is connected to the control module 11 for detecting the connection state of the charging stand.
  • control module 11 is specifically configured to determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to a predetermined safety distance when the collected image is successfully matched with the pre-stored set gesture image; When the distance between the object near the charging cover and the charging cover is greater than or equal to the safe distance, determine whether the charging device is connected to the current charging base; when there is no charging device connected to the current charging base, drive the charging cover motor to switch the charging cover. state; when the distance between the object near the charging cover and the charging cover is less than the safe distance, or when the charging device is connected to the current charging base, the motor of the charging cover is driven to maintain the current state of the charging cover.
  • the control module 11 When the control module 11 successfully matches the image collected by the image acquisition module 13 with the pre-stored set gesture image, it means that the user's current gesture is successfully matched. At this time, it is necessary to further determine the distance between the object near the charging cover and the charging cover. Whether the distance is greater than or equal to the predetermined safe distance, which is the space distance required when the charging cover is switched from the closed state to the open state, when the object near the charging cover is located in the area outside the safe distance, it can be considered that There is no object blocking near the charging cover; when the object near the charging cover is within the above-mentioned safe distance, it can be considered that there is an object blocking the charging cover.
  • the predetermined safe distance which is the space distance required when the charging cover is switched from the closed state to the open state
  • the object When an object is blocked near the charging cover, the object may be the user's hand or other objects in front of the charging cover. If the user's hand is too close to the charging cover, the user may be injured when switching the state of the charging cover; and if there are other objects in front of the charging cover, the charging cover may also be damaged when switching the state of the charging cover. Therefore, in the embodiment of the present invention, it is necessary to determine whether the distance between the object near the charging cover and the charging cover is greater than or equal to the safety distance.
  • the control module 11 may send a detection control instruction to the optical ranging module 14, and the optical ranging module 14 starts to detect the distance between the object near the charging cover and the charging cover according to the detection control instruction.
  • the optical ranging module 14 can use a mature optical ranging device in the prior art, by emitting light with a set wavelength near the charging cover, after the light is incident on the object near the charging cover, it will be reflected back by the object, then The distance between the object and the charging cover can be obtained by using the optical distance measuring device to transmit the light of the set wavelength to the time it takes to receive the reflected light of the set wavelength and half the product of the speed of light.
  • the optical ranging module 14 sends the detected distance to the control module 11, and the control module 11 can determine whether the object near the charging cover is within the safe distance of the charging cover according to the distance.
  • the control module 11 drives the charging cover motor to keep the current state of the charging cover unchanged.
  • the control module 11 sends a detection control instruction to the charging stand detection module 15 .
  • the charging stand detection module 15 detects the current connection state of the charging stand according to the detection control instruction.
  • a first connection confirmation point (CC1) is set at the position of the charging base, and a voltage detection circuit is set at the position of CC1.
  • a voltage detection circuit is set at the position of CC1.
  • control module 11 When the control module 11 detects that the voltage signal of CC1 is 0, it can determine that there is no charging device connected to the charging stand. At this time, the control module 11 drives the charging cover motor to switch the state of the charging cover; when the detected voltage signal of CC1 is not When the value is 0, it can be determined that there is a charging device connected to the charging base. At this time, the control module 11 drives the charging cover motor to keep the current state of the charging cover unchanged.
  • the state of the charging cover can be switched; and when either or both of the above conditions are not satisfied , it is necessary to keep the charging cover in its current state to avoid safety problems.
  • the charging cover control device further includes: a charging cover state detection module 16 connected to the control module 11 for detecting the state of the charging cover.
  • a voltage detection circuit is provided at the mechanical connection position of the charging cover.
  • the charging cover state detection module 16 may be the above-mentioned voltage detection circuit.
  • the current state of the charging cover can be determined by detecting the voltage signal at the mechanical connection position.
  • control module 11 sends a detection control instruction to the charging cover state detection module 16, and the charging cover state detection module 16 detects the voltage signal of the mechanical connection position of the charging cover according to the detection control instruction, and sends the detected voltage signal to control Module 11.
  • the control module 11 determines the state of the current charging cover according to the detected voltage signal, and drives the charging cover motor to close the charging cover when the current charging cover is open; and drives the charging cover motor to open the charging cover when the current charging cover is closed. Thereby, switching of the state of the charging cover is realized.
  • the charging cover control device further includes: a message prompting module 17 connected to the control module 11 ; the message prompting module 17 may be a voice player, an indicator light, a display screen, etc., which is not limited here.
  • control module 11 determines that the distance between the object near the charging cover and the charging cover is less than the safe distance, it sends a first prompt message to the message prompting module 17 to indicate that there is an object blocking the charging cover; A prompt message informs the user that there is an object blocking the charging cover.
  • the message prompting module 17 when receiving the above-mentioned first prompt message, the voice player automatically plays the prompt sound that there is an object blocking the charging cover; if the message prompting module 17 is an indicator light, when the After receiving the above-mentioned first prompt message, it can flash or light up an indicator light of a specific color according to a preset number of times; if the message prompting module 17 is a display screen, when the above-mentioned first prompt message is received, it can be displayed on the display screen. Displays the words that there is an object blocking the charging cover, thereby prompting the user why the status of the charging cover cannot be switched at present. After troubleshooting, the user can perform a specific action again to trigger the charging cover to switch states.
  • control module 11 determines that a charging device is connected to the current charging stand, it sends a second prompt message to the message prompting module 17 to indicate that the charging stand has been connected to the charging device; the message prompting module 17 prompts the user to the charging stand according to the second prompt message.
  • a charging device is connected.
  • the message prompting module 17 is a voice player, when the second prompting message is received, the voice player automatically plays the prompt sound that the charging stand has been connected to the charging device; if the message prompting module 17 is an indicator light, When the above second prompt message is received, the indicator light of a specific color can be flashed according to a preset number of times or lighted; if the message prompt module 17 is a display screen, when the above second prompt message is received, it can be displayed on the display screen. The words that the charging base has been connected to the charging device is displayed on the display, thereby prompting the user why the status of the charging cover cannot be switched at present. After unplugging the charging device, the user can perform a specific action again to trigger the charging cover to switch states.
  • the message prompting module 17 adopts an indicator light, it is used to prompt the user that "there is an object blocking the charging cover” and "the charging base has been connected to the charging device". Different reasons are convenient for users to judge.
  • the charging cover can be automatically controlled to open or close when the user performs a specific action in front of the charging cover.
  • an embodiment of the present invention also provides an electric vehicle, the electric vehicle includes any one of the above charging cover control devices, and the charging cover control device is connected to the charging cover motor.
  • the charging cover control method device and electric vehicle provided by the embodiments of the present invention, by detecting biological signals, it can be determined whether there is a user approaching near the charging cover.
  • the image is matched with the image of the pre-stored set gesture.
  • the gesture is successfully matched, it means that the user is currently performing a specific gesture action to control the charging cover.
  • the charging cover can be automatically controlled to open or close, and the user does not need to manually operate the charging cover. and other tedious steps to improve the convenience of charging.

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Abstract

本发明公开了一种电动汽车的充电盖控制方法、设备及电动汽车，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，对充电盖前方进行图像采集，并将采集的图像与预先存储的设定手势的图像进行匹配，在手势匹配成功时，说明用户当前执行了控制充电盖的特定手势动作，此时可以自动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。

Description

一种电动汽车的充电盖控制方法、设备及电动汽车
本申请要求2021年04月26日递交的申请号为202110452772.9、发明名称为“一种电动汽车的充电盖控制方法、设备及电动汽车”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及电动汽车技术领域，尤其涉及一种电动汽车的充电盖控制方法、设备及电动汽车。
背景技术
随着电动汽车的快速发展，电动汽车在汽车领域的市场份额越来越大。电动汽车具有无污染、噪声低、能源效率高等特点，是我国战略性新兴产业之一。
电动汽车通常采用车载电源为动力，用电动机代替燃油机驱动汽车行驶。目前电动汽车的电源采用最为广泛的是蓄电池，蓄电池的充电口处通常设置有充电盖进行保护。在对电动汽车进行充电之前需要驾驶员按下内按钮控制充电盖打开；充电完毕后需要手动关闭充电盖。上述操作复杂，且如果驾驶员下车前忘记打开充电盖，还需要重新返回车内按下按钮，不符合便捷需求。
发明内容
本发明实施例提供一种电动汽车的充电盖控制方法、设备及电动汽车，用以自动控制电动汽车的充电盖打开或关闭。
第一方面，本发明实施例提供一种电动汽车的充电盖控制方法，包括：
检测充电盖附近的生物信号；
在检测到生物信号时，对充电盖前方进行图像采集；
将采集的图像与预先存储的设定手势的图像进行匹配；
在采集的图像与预先存储的设定手势的图像匹配成功时，切换充电盖的状态；
其中，充电盖的状态包括打开状态和关闭状态。
本发明实施例提供的上述充电盖控制方法，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，对充电盖的前方进行图像采集，采集用户执行手势动作的图像。再将采集到的图像与预先存储的设定手势的图像进行匹配，当匹 配成功时，说明用户在充电盖前方执行的手势动作为预先存储的特定的手势动作，在手势匹配成功后自动切换充电盖的状态。由此，用户可以通过在充电盖前方执行特定的手势动作来动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
本发明一些实施例中，上述生物信号包括红外信号，通过检测充电盖附近的红外信号，可以确定充电盖附近是否有生物接近。
本发明一些实施例中，预先存储的设定手势的图像包括多个，将采集的图像与预先存储的设定手势的图像进行匹配，包括：
将采集的图像分别与各设定手势的图像进行匹配；
在采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，确定手势匹配成功；
在采集的图像与各设定手势的图像的相似度均小于预设阈值时，确定手势匹配失败。
预先存储多个设定手势的图像，这些设定手势的图像可以不同或相似，那么当采集到用户的手势图像之后，可以将采集到的图像与多个设定手势的图像依次进行匹配，只要采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，则说明手势匹配成功，此时即可自动控制充电盖切换状态。
采用多个不同设定手势的图像进行手势匹配，可以使切换充电盖状态的控制手势多样化，那么用户只要执行其中一个特定手势的动作就可以控制充电盖进行状态切换。当用户采用一种手势动作控制失败时还可以采用其它的手势进行尝试，提高手势控制的有效性和灵活性。采用多个相似的手势的图像进行手势匹配，可以对用户的手势动作进行高效匹配，用户不需要做到极端标准的手势动作即可以达到手势动作匹配成功，由此提高手势匹配的成功率。
本发明一些实施例中，在采集的图像与预先存储的设定手势的图像匹配成功之后，在切换充电盖的状态之前，还包括：
检测充电盖附近的物体与充电盖之间的距离；确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；在充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，确定当前充电座是否有充电设备接入；在当前充电座无充电设备接入时，切换充电盖的状态。在充电盖附近的物体与充电盖之间的距离小于安全距离时，或者在当前充电座有充电设备接入时，保持充电盖的当前状态。
当充电盖附近的物体位于安全距离之内的区域时，可以认为充电盖附近有物体遮挡， 此时切换充电盖的状态可能会伤害到用户或者损伤充电盖；而当充电座连接充电设备的情况下切换充电盖的状态会使充电盖与充电设备之间发生碰撞，因此在切换充电盖状态之前需要确定充电盖附近的物体与充电盖之间的距离大于等于安全距离，且当前充电座无充电设备接入时，可以切换充电盖的状态，否则需要保持充电盖处于当前的状态不变。
本发明一些实施例中，切换充电盖的状态，具体包括：
确定当前充电盖的状态；在当前充电盖为打开状态时，将充电盖切换为关闭状态；在当前充电盖为关闭状态时，将充电盖切换为打开状态。
通过检测充电盖的机械连接位置处的电压信号，确定充电盖当前的状态是打开状态还是关闭状态，在当前充电盖为打开状态时，则用户执行的特定动作是为了关闭充电盖，此时将充电盖切换为关闭状态；在当前充电盖为关闭状态时，则用户执行的特定动作是为了打开充电盖，此时将充电盖切换为打开状态。
本发明一些实施例中，在确定充电盖附近的物体与充电盖之间的距离小于安全距离时，还可以发出用于表征充电盖附近有物体遮挡的第一提示消息，用该第一提示消息提示用户当前无法切换充电盖状态的原因，在排除问题之后，用户可以再次执行特定的动作以触发充电盖切换状态。
本发明一些实施例中，在确定当前充电座有充电设备接入时，可以发出用于表征充电座已连接充电设备的第二提示消息，用该第二提示消息提示用户当前无法切换充电盖状态的原因，在拔出充电设备之后，用户可以再次执行特定的动作以触发充电盖切换状态。
本发明一些实施例中，采用光学测距的装置，向充电盖的附近发射设定波长的光线，该光线在入射到充电盖附近的物体之后，会被物体反射回来，那么利用光学测距装置发射设定波长的光线到接收到设定波长的反射光线所用的时间与光速的乘积的一半可以得到物体与充电盖之间的距离。根据该距离可以确定出充电盖附近的物体是否位于充电盖的安全距离之内，从而决定是否触发后续操作。
本发明一些实施例中，在充电座口的位置设置有第一连接确认点(CC1)，通过检测CC1的电压信号可以确定充电座是否有充电设备接入。如果检测到CC1的电压信号则说明有充电设备(例如，充电枪)接入到充电座中，如果未检测到CC1电压信号则说明充电座中无充电设备接入。
第二方面，本发明实施例提供一种充电盖控制设备，包括：控制模块、生物信号检测模块和图像采集模块；其中，控制模块连接电动汽车的充电盖电机，控制模块向充电 盖电极发出控制指令，通过驱动充电盖电机可以控制充电盖打开或关闭。
生物信号检测模块，与控制模块连接，用于检测充电盖附近的生物信号；
图像采集模块，与控制模块连接，用于对充电盖前方进行图像采集。
控制模块，用于在检测到生物信号时，对充电盖前方进行图像采集；将采集的图像与预先存储的设定手势的图像进行匹配；在采集的图像与预先存储的设定手势的图像匹配成功时，切换充电盖的状态；充电盖的状态包括打开状态和关闭状态。
控制模块可以驱动生物信号检测模块检测充电盖附近的生物信号，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，控制模块驱动图像采集模块对充电盖前方进行图像采集。图像采集模块将采集到的图像发送控制模块，控制模块将采集到的图像与预先存储的设定手势的图像进行匹配，当匹配成功时，说明用户在充电盖前方执行的手势动作为预先存储的特定的手势动作，在手势匹配成功后自动切换充电盖的状态。由此，用户可以通过在充电盖前方执行特定的手势动作自动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
本发明一些实施例中，上述生物信号包括红外信号，通过检测充电盖附近的红外信号，可以确定充电盖附近是否有生物接近。
本发明一些实施例中，只有在生物信号检测模块检测到充电盖附近有生物信号时才驱动图像采集模块对充电盖前方进行图像采集，这样可以避免持续对充电盖前方采用图像，而对大量的图像数据进行图像匹配的操作，从而可以避免产生过多的无效数据，提高手势匹配的有效性。
本发明一些实施例中，可以在控制模块中预先存储多个设定手势的图像，这些设定手势的图像可以不同或相似，那么当采集到用户的手势图像之后，可以将采集到的图像与多个设定手势的图像依次进行匹配，只要采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，则说明手势匹配成功，此时即可自动控制充电盖切换状态。
采用多个不同设定手势的图像进行手势匹配，可以使切换充电盖状态的控制手势多样化，那么用户只要执行其中一个特定手势的动作就可以控制充电盖进行状态切换。当用户采用一种手势动作控制失败时还可以采用其它的手势进行尝试，提高手势控制的有效性和灵活性。采用多个相似的手势的图像进行手势匹配，可以对用户的手势动作进行高效匹配，用户不需要做到极端标准的手势动作即可以达到手势动作匹配成功，由此提高手势匹配的成功率。
本发明一些实施例中，充电盖控制设备还包括：光学测距模块以及充电座检测模块；
光学测距模块，与控制模块连接，用于检测充电盖附近的物体与充电盖之间的距离；
充电座检测模块，与控制模块连接，用于检测充电座的连接状态；
控制模块，用于在采集的图像与预先存储的设定手势的图像匹配成功时，根据检测到的充电盖附近的物体与充电盖之间的距离以及当前充电座的连接状态，确定是否切换充电盖的状态；充电盖的状态包括打开状态和关闭状态。
在采集的图像与预先存储的设定手势的图像匹配成功时，说明用户当前执行的手势匹配成功，此时需要采用光学测距模块进一步检测充电盖附近是否有物体遮挡，充电座检测模块进一步检测充电座当前的连接情况，光学测距模块以及充电座检测模块将检测结果发送控制模块，控制模块根据上述检测结果可以确定是否切换充电盖的状态。由此，用户可以通过在充电盖前方执行特定的动作且在充电盖处于安全状态下自动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
本发明一些实施例中，控制模块，具体用于确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；在充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，确定当前充电座是否有充电设备接入；在当前充电座无充电设备接入时，驱动充电盖电机切换充电盖的状态；在充电盖附近的物体与充电盖之间的距离小于安全距离时，或者在当前充电座有充电设备接入时，驱动充电盖电机保持充电盖的当前状态。
当充电盖附近的物体位于安全距离之内的区域时，可以认为充电盖附近有物体遮挡，此时切换充电盖的状态可能会伤害到用户或者损伤充电盖；而当充电座连接充电设备的情况下切换充电盖的状态会使充电盖与充电设备之间发生碰撞，因此在切换充电盖状态之前需要确定充电盖附近的物体与充电盖之间的距离大于等于安全距离，且当前充电座无充电设备接入时，可以切换充电盖的状态，否则需要保持充电盖处于当前的状态不变。
本发明一些实施例中，控制模块向光学测距模块发送检测控制指令，光学测距模块根据检测控制指令开始检测充电盖附近的物体与充电盖之间的距离。光学测距模块可以采用现有技术中成熟的光学测距装置，通过向充电盖的附近发射设定波长的光线，该光线在入射到充电盖附近的物体之后，会被物体反射回来，那么利用光学测距装置发射设定波长的光线到接收到设定波长的反射光线所用的时间与光速的乘积的一半可以得到物体与充电盖之间的距离。光学测距模块将检测到的距离发送控制模块，控制模块根据该距离可以确定出充电盖附近的物体是否位于充电盖的安全距离之内，当充电盖附近的物体与充电盖之间的距离小于安全距离时，控制模块驱动充电盖电机保持充电盖的当前状 态不变。当充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，进一步确定充电座的连接状态。
本发明一些实施例中，控制模块向充电座检测模块发送检测控制指令。充电座检测模块根据检测控制指令检测CC1的电压信号，将检测到的电压信号发送控制模块。控制模块在检测到CC1的电压信号为0时，可以确定充电座中无充电设备接入，此时控制模块驱动充电盖电机切换充电盖的状态；在检测到的CC1的电压信号不为0时，可以确定充电座中有充电设备接入，此时控制模块驱动充电盖电机保持充电盖的当前状态不变。
本发明一些实施例中，充电盖控制设备还包括：充电盖状态检测模块，与控制模块连接，用于检测充电盖的状态。
控制模块向充电盖状态检测模块发送检测控制指令，充电盖状态检测模块根据检测控制指令检测充电盖机械连接位置的电压信号，并将检测到的电压信号发送控制模块。控制模块根据检测到的电压信号确定当前充电盖的状态，在当前充电盖为打开状态时，驱动充电盖电机关闭充电盖；在当前充电盖为关闭状态时，驱动充电盖电机打开充电盖。由此实现充电盖状态的切换。
本发明一些实施例中，充电盖控制设备还包括：与控制模块连接的消息提示模块；该消息提示模块可以为语音播放器、指示灯、显示屏等。
本发明一些实施例中，控制模块在确定充电盖附近的物体与充电盖之间的距离小于安全距离时，向消息提示模块发送用于表征充电盖附近有物体遮挡的第一提示消息；消息提示模块根据第一提示消息提示用户充电盖附近有物体遮挡，在排除问题之后，用户可以再次执行特定的动作以触发充电盖切换状态。
本发明一些实施例中，控制模块在确定当前充电座有充电设备接入时，向消息提示模块发送用于表征充电座已接入充电设备的第二提示消息；消息提示模块根据第二提示消息提示用户充电座已接入充电设备。在拔出充电设备之后，用户可以再次执行特定的动作以触发充电盖切换状态。
第三方面，本发明实施例提供一种电动汽车，该电动汽车包括上述任一充电盖控制设备，且充电盖控制设备连接充电盖电机。该电动汽车可以在用户在充电盖的前方执行特定的手势动作时自动控制充电盖打开或关闭。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用 的附图作简单地介绍，显而易见地，下面所介绍的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例提供的充电盖控制方法的流程图之一；
图2为本发明实施例提供的充电盖控制方法的流程图之二；
图3为本发明实施例提供的充电盖控制方法的流程图之三；
图4为本发明实施例提供的充电盖控制设备的结构示意图之一；
图5为本发明实施例提供的充电盖控制设备的结构示意图之二。
其中，11-控制模块，12-生物信号检测模块，13-图像采集模块，14-光学测距模块，15-充电座检测模块，16-充电盖状态检测模块，17-消息提示模块。
具体实施方式
为使本发明的上述目的、特征和优点能够更为明显易懂，下面将结合附图和实施例对本发明做进一步说明。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的实施方式；相反，提供这些实施方式使得本发明更全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。在图中相同的附图标记表示相同或类似的结构，因而将省略对它们的重复描述。本发明中所描述的表达位置与方向的词，均是以附图为例进行的说明，但根据需要也可以做出改变，所做改变均包含在本发明保护范围内。本发明的附图仅用于示意相对位置关系不代表真实比例。
电动汽车是使用电池包作为动力源，利用电机将电能转化为机械能从而驱动车辆行驶。电动汽车的电力驱动及控制系统是电动汽车的核心，也是区别于内燃机汽车的最大不同点。其他装置基本与内燃机汽车相同。电力驱动及控制系统由驱动电动机、电源和电动机的调速控制装置等组成。
电动汽车通常在机身或车头处设置有一个充电座，该充电座连接车辆内的电池，将充电桩上的充电枪头插入到充电枪座之后，可以为车辆进行充电。为了保护充电座通常会在充电座之上设置充电盖，在对车辆进行充电时需要驾驶员按下内按钮控制充电盖打开；充电完毕后需要手动关闭充电盖。上述操作复杂，且如果驾驶员下车前忘记打开充电盖，还需要重新返回车内按下按钮，不符合便捷需求。
有鉴于此，本发明实施例提供一种充电盖控制方法，可以通过检测人物的手势动作自动控制充电盖打开或关闭。
图1为本发明实施例提供的充电盖控制方法的流程图之一。
如图1所示，充电盖控制方法，包括：
S10、检测充电盖附近的生物信号；
S20、在检测到生物信号时，对充电盖前方进行图像采集；
S30、将采集的图像与预先存储的设定手势的图像进行匹配；
S40、在采集的图像与预先存储的设定手势的图像匹配成功时，切换充电盖的状态。
其中，充电盖的状态包括打开状态和关闭状态。检测生物信号的方式可以采用实时检测或周期性检测，在此不做限定。
本发明实施例提供的上述充电盖控制方法，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，对充电盖的前方进行图像采集，采集用户执行手势动作的图像。再将采集到的图像与预先存储的设定手势的图像进行匹配，当匹配成功时，说明用户在充电盖前方执行的手势动作为预先存储的特定的手势动作，在手势匹配成功后自动切换充电盖的状态。其中，充电盖的状态切换是指，当充电盖处于打开状态时，将充电盖切换为关闭状态；当充电盖处于关闭状态时，将充电盖切换为打开状态。用户执行的特定的手势动作可以在充电盖处于上述任一种状态下，切换为另一种状态。
由此，用户可以通过在充电盖前方执行特定的手势动作来控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
在具体实施时，上述的生物信号可以包括红外信号，红外信号为生物体散发的区别于其它物体的一种信号，红外信号的波长大于可见光的波长，因此不会干扰用户人眼所见的其它事物的判断。除此之外，生物信号也可以采用其它可以区别出人体与其它物体的信号，在此不做限定。
本发明实施例只有在检测到充电盖附近有生物信号时才对充电盖前方进行图像采集，这样可以避免持续对充电盖前方采用图像，而对大量的图像数据进行图像匹配的操作，从而可以避免产生过多的无效数据，提高手势匹配的有效性。
本发明实施例中，可以预先存储多个设定手势的图像，这些设定手势的图像可以不同或相似，那么当采集到用户的手势图像之后，可以将采集到的图像与多个设定手势的图像依次进行匹配，只要采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，则说明手势匹配成功，此时即可自动控制充电盖切换状态。
采用多个不同设定手势的图像进行手势匹配，可以使切换充电盖状态的控制手势多 样化，那么用户只要执行其中一个特定手势的动作就可以控制充电盖进行状态切换。当用户采用一种手势动作控制失败时还可以采用其它的手势进行尝试，提高手势控制的有效性和灵活性。
采用多个相似的手势的图像进行手势匹配，可以对用户的手势动作进行高效匹配，用户不需要做到极端标准的手势动作即可以达到手势动作匹配成功，由此提高手势匹配的成功率。
在本发明实施例中，在手势匹配成功之后，还需要进一步检测充电盖附近是否有物体遮挡，以及进一步检测充电座当前的连接情况，才能够确定是否切换充电盖的状态。
图2为本发明实施例提供的充电盖控制方法的流程图之二。
如图2所示，具体地，在上述的步骤S40中，在采集的图像与预先存储的设定手势的图像匹配成功之后，在切换充电盖的状态之前，还包括如下步骤：
S401、检测充电盖附近的物体与充电盖之间的距离；
S402、确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；在充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，执行步骤S403；在充电盖附近的物体与充电盖之间的距离小于安全距离时，执行步骤S405；
S403、确定当前充电座是否有充电设备接入；在当前充电座无充电设备接入时，执行步骤S404；在当前充电座有充电设备接入时，执行步骤S405；
S404、切换充电盖的状态；
S405、保持充电盖的当前状态。
在采集的图像与设定手势的图像匹配成功时，说明用户当前执行的手势匹配成功，此时需要进一步确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离，该安全距离是在考虑到充电盖由关闭状态切换到打开状态时需要的空间距离，当充电盖附近的物体位于安全距离之外的区域时，可以认为充电盖附近无物体遮挡；当充电盖附近的物体位于上述安全距离之内时，可以认为充电盖附近有物体遮挡。充电盖附近有物体遮挡时，该物体可能是用户的手部，也可能是充电盖前方的其它物体。如果用户的手部距离充电盖过近，那么在切换充电盖的状态时可能会伤到用户；而如果充电盖前方有其它物体，切换充电盖的状态时也可能会损伤到充电盖。因此本发明实施例需要确定充电盖附近的物体与充电盖之间的距离是否大于或等于安全距离。
在确定充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，再进一步确定充电座中是否有充电设备接入。如果当前充电座有充电设备接入，则可能充电座正在 进行充电，或者充电设备还未拔出，此时如果切换充电盖关闭，则会造成充电盖与充电设备之间的碰撞。为了避免该问题，需要确定当前充电座的连接状态。
在确定充电盖附近的物体与充电盖之间的距离大于等于安全距离，且当前充电座无充电设备接入时，可以切换充电盖的状态；而当上述任一或两个条件均不满足时，需要保持充电盖处于当前的状态不变。
图3为本发明实施例提供的充电盖控制方法的流程图之三。
如图3所示，具体地，上述的步骤S404具体包括如下步骤：
S4041、确定当前充电盖的状态；在当前充电盖为打开状态时，执行步骤S4042；在当前充电盖为关闭状态时，执行步骤S4043；
S4042、将充电盖切换为关闭状态；
S4043、将充电盖切换为打开状态。
在具体实施过程中，可以通过检测充电盖的机械连接位置处的电压信号，确定充电盖当前的状态是打开状态还是关闭状态，在当前充电盖为打开状态时，则用户执行的特定动作是为了关闭充电盖，此时将充电盖切换为关闭状态；在当前充电盖为关闭状态时，则用户执行的特定动作是为了打开充电盖，此时将充电盖切换为打开状态。
进一步地，在确定充电盖附近的物体与充电盖之间的距离小于安全距离时，还可以发出用于表征充电盖附近有物体遮挡的第一提示消息，用该第一提示消息提示用户当前无法切换充电盖状态的原因，在排除问题之后，用户可以再次执行特定的动作以触发充电盖切换状态。
同样地，在确定当前充电座有充电设备接入时，可以发出用于表征充电座已连接充电设备的第二提示消息，用该第二提示消息提示用户当前无法切换充电盖状态的原因，在拔出充电设备之后，用户可以再次执行特定的动作以触发充电盖切换状态。
在具体实施过程中，检测充电盖附近的物体与充电盖之间的距离，可以采用以下方法进行检测：
向充电盖附近发射设定波长的光线；
接收被充电盖附近的物体反射的设定波长的光线；
根据发射设定波长的光线到接收到设定波长的光线所用时间以及光速确定充电盖附近的物体与充电盖之间的距离。
采用光学测距的装置，向充电盖的附近发射设定波长的光线，该光线在入射到充电盖附近的物体之后，会被物体反射回来，那么利用光学测距装置发射设定波长的光线到 接收到设定波长的反射光线所用的时间与光速的乘积的一半可以得到物体与充电盖之间的距离。根据该距离可以确定出充电盖附近的物体是否位于充电盖的安全距离之内，从而决定是否触发后续操作。
充电座的连接状态可以采用以下方法进行检测：
检测充电座中的第一连接确认点的电压信号；
在第一连接确认点的电压信号为0时，确定充电座无充电设备接入；
在第一连接确认点的电压信号不为0时，确定充电座有充电设备接入。
在充电座口的位置设置有第一连接确认点(CC1)，通过检测CC1的电压信号可以确定充电座是否有充电设备接入。如果检测到CC1的电压信号则说明有充电设备(例如，充电枪)接入到充电座中，如果未检测到CC1电压信号则说明充电座中无充电设备接入。
另一方面，本发明实施例提供一种充电盖控制设备。图4为本发明实施例提供的充电盖控制设备的结构示意图之一。
如图4所示，充电盖控制设备包括：控制模块11、生物信号检测模块12和图像采集模块13；其中，控制模块11连接电动汽车的充电盖电机，控制模块11向充电盖电极发出控制指令，通过驱动充电盖电机可以控制充电盖打开或关闭。
生物信号检测模块12，与控制模块11连接，用于检测充电盖附近的生物信号；
图像采集模块13，与控制模块11连接，用于对充电盖前方进行图像采集。
控制模块11，用于在检测到生物信号时，对充电盖前方进行图像采集；将采集的图像与预先存储的设定手势的图像进行匹配；在采集的图像与预先存储的设定手势的图像匹配成功时，切换充电盖的状态；充电盖的状态包括打开状态和关闭状态。
控制模块11可以驱动生物信号检测模块12检测充电盖附近的生物信号，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，控制模块11驱动图像采集模块13对充电盖前方进行图像采集。图像采集模块13将采集到的图像发送控制模块11，控制模块11将采集到的图像与预先存储的设定手势的图像进行匹配，当匹配成功时，说明用户在充电盖前方执行的手势动作为预先存储的特定的手势动作，在手势匹配成功后自动切换充电盖的状态。由此，用户可以通过在充电盖前方执行特定的手势动作自动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
在具体实施时，上述的生物信号可以包括红外信号，上述的生物信号检测模块12可以采用红外检测设备。除此之外，上述的生物信号也可以采用可以区别人体和其它物体 的信号，在此不做限定。相应地，生物信号检测模块12采用可以检测出相应信号的检测设备即可。
本发明实施例只有在生物检测模块12检测到充电盖附近有生物信号时才驱动图像采集模块13对充电盖前方进行图像采集，这样可以避免持续对充电盖前方采用图像，而对大量的图像数据进行图像匹配的操作，从而可以避免产生过多的无效数据，提高手势匹配的有效性。
本发明实施例中，可以在控制模块11中预先存储多个设定手势的图像，这些设定手势的图像可以不同或相似，那么当采集到用户的手势图像之后，可以将采集到的图像与多个设定手势的图像依次进行匹配，只要采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，则说明手势匹配成功，此时即可自动控制充电盖切换状态。
采用多个不同设定手势的图像进行手势匹配，可以使切换充电盖状态的控制手势多样化，那么用户只要执行其中一个特定手势的动作就可以控制充电盖进行状态切换。当用户采用一种手势动作控制失败时还可以采用其它的手势进行尝试，提高手势控制的有效性和灵活性。
采用多个相似的手势的图像进行手势匹配，可以对用户的手势动作进行高效匹配，用户不需要做到极端标准的手势动作即可以达到手势动作匹配成功，由此提高手势匹配的成功率。
在本发明实施例中，在手势匹配成功之后，还需要进一步检测充电盖附近是否有物体遮挡，以及进一步检测充电座当前的连接情况，才能够确定是否切换充电盖的状态。
图5为本发明实施例提供的充电盖控制设备的结构示意图之二。
如图5所示，充电盖控制设备还包括：光学测距模块14和充电座检测模块15。
光学测距模块14，与控制模块11连接，用于检测充电盖附近的物体与充电盖之间的距离；
充电座检测模块15，与控制模块11连接，用于检测充电座的连接状态。
具体地，控制模块11，具体用于在采集的图像与预先存储的设定手势的图像匹配成功时，确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；在充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，确定当前充电座是否有充电设备接入；在当前充电座无充电设备接入时，驱动充电盖电机切换充电盖的状态；在充电盖附近的物体与充电盖之间的距离小于安全距离时，或者在当前充电座有充电设备接入时，驱动充电盖电机保持充电盖的当前状态。
在控制模块11将图像采集模块13采集的图像与预先存储的设定手势的图像匹配成功时，说明用户当前执行的手势匹配成功，此时需要进一步确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离，该安全距离是在考虑到充电盖由关闭状态切换到打开状态时需要的空间距离，当充电盖附近的物体位于安全距离之外的区域时，可以认为充电盖附近无物体遮挡；当充电盖附近的物体位于上述安全距离之内时，可以认为充电盖附近有物体遮挡。充电盖附近有物体遮挡时，该物体可能是用户的手部，也可能是充电盖前方的其它物体。如果用户的手部距离充电盖过近，那么在切换充电盖的状态时可能会伤到用户；而如果充电盖前方有其它物体，切换充电盖的状态时也可能会损伤到充电盖。因此本发明实施例需要确定充电盖附近的物体与充电盖之间的距离是否大于或等于安全距离。
在具体实施时，控制模块11可以向光学测距模块14发送检测控制指令，光学测距模块14根据检测控制指令开始检测充电盖附近的物体与充电盖之间的距离。光学测距模块14可以采用现有技术中成熟的光学测距装置，通过向充电盖的附近发射设定波长的光线，该光线在入射到充电盖附近的物体之后，会被物体反射回来，那么利用光学测距装置发射设定波长的光线到接收到设定波长的反射光线所用的时间与光速的乘积的一半可以得到物体与充电盖之间的距离。光学测距模块14将检测到的距离发送控制模块11，控制模块11根据该距离可以确定出充电盖附近的物体是否位于充电盖的安全距离之内，当充电盖附近的物体与充电盖之间的距离小于安全距离时，控制模块11驱动充电盖电机保持充电盖的当前状态不变。当充电盖附近的物体与充电盖之间的距离大于或等于安全距离时，控制模块11向充电座检测模块15发送检测控制指令。充电座检测模块15根据检测控制指令检测充电座当前的连接状态。
在具体实施时，在充电座口的位置设置有第一连接确认点(CC1)，在CC1的位置设置电压检测电路，通过检测CC1的电压信号可以确定充电座是否有充电设备接入。充电座检测模块15具体的设置形式可以为上述电压检测电路，充电座检测模块15在检测CC1的电压信号之后，将检测到的电压信号发送控制模块11。
控制模块11在检测到CC1的电压信号为0时，可以确定充电座中无充电设备接入，此时控制模块11驱动充电盖电机切换充电盖的状态；在检测到的CC1的电压信号不为0时，可以确定充电座中有充电设备接入，此时控制模块11驱动充电盖电机保持充电盖的当前状态不变。
在确定充电盖附近的物体与充电盖之间的距离大于等于安全距离，且当前充电座无 充电设备接入时，可以切换充电盖的状态；而当上述任一或两个条件均不满足时，需要保持充电盖处于当前的状态不变，从而避免发生安全问题。
如图5所示，充电盖控制设备还包括：充电盖状态检测模块16，与控制模块11连接，用于检测充电盖的状态。
在充电盖的机械连接位置设置有电压检测电路，充电盖状态检测模块16具体可以为上述电压检测电路，通过检测机械连接位置的电压信号可以确定充电盖的当前状态。
在具体实施过程中，控制模块11向充电盖状态检测模块16发送检测控制指令，充电盖状态检测模块16根据检测控制指令检测充电盖机械连接位置的电压信号，并将检测到的电压信号发送控制模块11。
控制模块11根据检测到的电压信号确定当前充电盖的状态，在当前充电盖为打开状态时，驱动充电盖电机关闭充电盖；在当前充电盖为关闭状态时，驱动充电盖电机打开充电盖。由此实现充电盖状态的切换。
如图5所示，充电盖控制设备还包括：与控制模块11连接的消息提示模块17；该消息提示模块17可以为语音播放器、指示灯、显示屏等，在此不做限定。
控制模块11在确定充电盖附近的物体与充电盖之间的距离小于安全距离时，向消息提示模块17发送用于表征充电盖附近有物体遮挡的第一提示消息；消息提示模块17根据第一提示消息提示用户充电盖附近有物体遮挡。
具体地，如果消息提示模块17为语音播放器时，当接收到上述第一提示消息时，语音播放器自动播放充电盖附近有物体遮挡的提示音；如果消息提示模块17为指示灯时，当接收到上述第一提示消息，可以按照预先设定的数次闪烁或者点亮特定颜色的指示灯；如果消息提示模块17为显示屏时，当收到上述第一提示消息，可以在显示屏上显示充电盖附近有物体遮挡的字样，由此来提示用户当前无法切换充电盖状态的原因。在排除问题之后，用户可以再次执行特定的动作以触发充电盖切换状态。
控制模块11在确定当前充电座有充电设备接入时，向消息提示模块17发送用于表征充电座已接入充电设备的第二提示消息；消息提示模块17根据第二提示消息提示用户充电座已接入充电设备。
具体地，如果消息提示模块17为语音播放器时，当接收到上述第二提示消息时，语音播放器自动播放充电座已接入充电设备的提示音；如果消息提示模块17为指示灯时，当接收到上述第二提示消息，可以按照预先设定的数次闪烁或者点亮特定颜色的指示灯；如果消息提示模块17为显示屏时，当收到上述第二提示消息，可以在显示屏上显示充电 座已接入充电设备的字样，由此来提示用户当前无法切换充电盖状态的原因。在拔出充电设备之后，用户可以再次执行特定的动作以触发充电盖切换状态。
需要说明的是，消息提示模块17采用指示灯时，用于提示用户“充电盖附近有物体遮挡”和“充电座已接入充电设备”的闪烁次数或指示灯的颜色不同，由此可以区分不同的原因，方便用户进行判断。
由此，将充电盖控制设备连接充电盖电机，可以在用户在充电盖的前方执行特定动作时自动控制充电盖打开或关闭。
基于同一发明构思，本发明实施例还提供一种电动汽车，该电动汽车包括上述任一充电盖控制设备，且充电盖控制设备连接充电盖电机。
本发明实施例提供的充电盖控制方法、设备及电动汽车，通过检测生物信号，可以确定充电盖附近是否有用户接近，当检测到生物信号之后，对充电盖前方进行图像采集，并将采集的图像与预先存储的设定手势的图像进行匹配，在手势匹配成功时，说明用户当前执行了控制充电盖的特定手势动作，此时可以自动控制充电盖打开或关闭，不需要用户手动操作充电盖等繁琐步骤，提高充电便捷性。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (24)

  1. 一种电动汽车的充电盖控制方法，其特征在于，包括：
    检测充电盖附近的生物信号；
    在检测到生物信号时，对充电盖前方进行图像采集；
    将采集的图像与预先存储的设定手势的图像进行匹配；
    在采集的图像与预先存储的设定手势的图像匹配成功时，切换充电盖的状态；
    其中，所述充电盖的状态包括打开状态和关闭状态。
  2. 如权利要求1所述的充电盖控制方法，其特征在于，在采集的图像与预先存储的设定手势的图像匹配成功之后，在切换充电盖的状态之前，还包括：
    检测充电盖附近的物体与充电盖之间的距离；
    确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；
    在充电盖附近的物体与充电盖之间的距离大于或等于所述安全距离时，确定当前充电座是否有充电设备接入；
    所述切换充电盖的状态，包括：
    在当前充电座无充电设备接入时，切换所述充电盖的状态。
  3. 如权利要求2所述的充电盖控制方法，其特征在于，所述切换充电盖的状态，包括：
    确定当前充电盖的状态；
    在当前充电盖为打开状态时，将充电盖切换为关闭状态；
    在当前充电盖为关闭状态时，将充电盖切换为打开状态。
  4. 如权利要求2所述的充电盖控制方法，其特征在于，还包括：
    在充电盖附近的物体与充电盖之间的距离小于所述安全距离时，保持充电盖的当前状态。
  5. 如权利要求4所述的充电盖控制方法，其特征在于，所述在充电盖附近的物体与充电盖之间的距离小于所述安全距离时，保持充电盖的当前状态，包括：
    在充电盖附近的物体与充电盖之间的距离小于所述安全距离时，保持充电盖的当前状态，并发出用于表征充电盖附近有物体遮挡的第一提示消息。
  6. 如权利要求2所述的充电盖控制方法，其特征在于，还包括：
    在当前充电座有充电设备接入时，保持充电盖的当前状态。
  7. 如权利要求6所述的充电盖控制方法，其特征在于，所述在当前充电座有充电 设备接入时，保持充电盖的当前状态，包括：
    在当前充电座有充电设备接入时，保持充电盖的当前状态，并发出用于表征充电座已接入充电设备的第二提示消息。
  8. 如权利要求2-7任意一项所述的充电盖控制方法，其特征在于，所述检测充电盖附近的物体与充电盖之间的距离，包括：
    向充电盖附近发射设定波长的光线；
    接收被充电盖附近的物体反射的所述设定波长的光线；
    根据发射所述设定波长的光线到接收到所述设定波长的光线所用时间以及光速确定充电盖附近的物体与充电盖之间的距离。
  9. 如权利要求2-7任意一项所述的充电盖控制方法，其特征在于，所述检测充电座的连接状态，包括：
    检测充电座中的第一连接确认点的电压信号；
    在所述第一连接确认点的电压信号为0时，确定充电座无充电设备接入；
    在所述第一连接确认点的电压信号不为0时，确定充电座有充电设备接入。
  10. 如权利要求1-7任意一项所述的充电盖控制方法，其特征在于，所述预先存储的设定手势的图像包括多个，所述将采集的图像与预先存储的设定手势的图像进行匹配，包括：
    将采集的图像分别与各设定手势的图像进行匹配；
    在采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，确定手势匹配成功；
    在采集的图像与各设定手势的图像的相似度均小于预设阈值时，确定手势匹配失败。
  11. 如权利要求1-7任意一项所述的充电盖控制方法，其特征在于，所述生物信号包括红外信号。
  12. 一种电动汽车的充电盖控制设备，其特征在于，包括：生物信号检测模块、图像采集模块和控制模块；其中，所述控制模块连接电动汽车的充电盖电机；
    所述生物信号检测模块，与所述控制模块连接，用于检测充电盖附近的生物信号；
    所述图像采集测模块，与所述控制模块连接，用于采集充电座前方的图像；
    所述控制模块，用于在检测到生物信号时，对充电盖前方进行图像采集；将采集的图像与预先存储的设定手势的图像进行匹配；在采集的图像与预先存储的设定手势的图 像匹配成功时，切换充电盖的状态；所述充电盖的状态包括打开状态和关闭状态。
  13. 如权利要求12所述的充电盖控制设备，其特征在于，所述充电盖控制设备还包括：光学测距模块和充电座检测模块；
    所述光学测距模块，与所述控制模块连接，用于检测充电盖附近的物体与充电盖之间的距离；
    充电座检测模块，与所述控制模块连接，用于检测充电座的连接状态；
    所述控制模块，具体用于在采集的图像与预先存储的设定手势的图像匹配成功时，确定充电盖附近的物体与充电盖之间的距离是否大于或等于预先确定的安全距离；在充电盖附近的物体与充电盖之间的距离大于或等于所述安全距离时，确定当前充电座是否有充电设备接入；在当前充电座无充电设备接入时，驱动充电盖电机切换充电盖的状态。
  14. 如权利要求13所述的充电盖控制设备，其特征在于，还包括：
    充电盖状态检测模块，与所述控制模块连接，用于检测充电盖的状态；
    所述控制模块，具体用于确定当前充电盖的状态；在当前充电盖为打开状态时，将充电盖切换为关闭状态；在当前充电盖为关闭状态时，将充电盖切换为打开状态。
  15. 如权利要求13所述的充电盖控制设备，其特征在于，所述控制模块，还用于在充电盖附近的物体与充电盖之间的距离小于所述安全距离时，驱动充电盖电机保持充电盖的当前状态。
  16. 如权利要求13所述的充电盖控制设备，其特征在于，所述控制模块，还用于在当前充电座有充电设备接入时，驱动充电盖电机保持充电盖的当前状态。
  17. 如权利要求15或16所述的充电盖控制设备，其特征在于，还包括：与所述控制模块连接的消息提示模块；
    所述控制模块，还用于在充电盖附近的物体与充电盖之间的距离小于所述安全距离时，向所述消息提示模块发送用于表征充电盖附近有物体遮挡的第一提示消息；
    所述消息提示模块，用于根据所述第一提示消息提示用户充电盖附近有物体遮挡；
    所述控制模块，还用于在当前充电座有充电设备接入时，向所述消息提示模块发送用于表征充电座已接入充电设备的第二提示消息；
    所述消息提示模块，用于根据所述第二提示消息提示用户充电座已接入充电设备。
  18. 如权利要求17所述的充电盖控制设备，其特征在于，所述消息提示模块为语音播放器、指示灯或显示屏。
  19. 如权利要求13-16任意一项所述的充电盖控制设备，其特征在于，所述光学测 距模块，具体用于向充电盖附近发射设定波长的光线；接收被充电盖附近的物体反射的所述设定波长的光线；根据发射所述设定波长的光线到接收到所述设定波长的光线所用时间以及光速确定充电盖附近的物体与充电盖之间的距离。
  20. 如权利要求13-16任意一项所述的充电盖控制设备，其特征在于，所述充电座检测模块，具体用于检测所述充电座中的第一连接确认点的电压信号；
    所述控制模块，具体用于在所述第一连接确认点的电压信号为0时，确定充电座无充电设备接入；在所述第一连接确认点的电压信号不为0时，确定充电座有充电设备接入。
  21. 如权利要求14所述的充电盖控制设备，其特征在于，所述充电盖状态检测模块，具体用于检测充电盖设定位置处的连接点的电压信号；
    所述控制模块，具体用于根据所述电压信号确定充电盖的状态。
  22. 如权利要求12-16任意一项所述的充电盖控制设备，其特征在于，所述控制模块中预先存储多个设定手势的图像；
    所述控制模块，具体用于将采集的图像分别与各设定手势的图像进行匹配；在采集的图像与至少一个设定手势的图像的相似度大于或等于预设阈值时，确定手势匹配成功；在采集的图像与各设定手势的图像的相似度均小于预设阈值时，确定手势匹配失败。
  23. 如权利要求12-16任意一项所述的充电盖控制设备，其特征在于，所述生物信号包括红外信号。
  24. 一种电动汽车，其特征在于，包括如权利要求12-23任意一项所述的充电盖控制设备，所述充电盖控制设备连接充电盖电机。
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