WO2021230588A1 - 농업용 작업차량 - Google Patents
농업용 작업차량 Download PDFInfo
- Publication number
- WO2021230588A1 WO2021230588A1 PCT/KR2021/005795 KR2021005795W WO2021230588A1 WO 2021230588 A1 WO2021230588 A1 WO 2021230588A1 KR 2021005795 W KR2021005795 W KR 2021005795W WO 2021230588 A1 WO2021230588 A1 WO 2021230588A1
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- WO
- WIPO (PCT)
- Prior art keywords
- swash plate
- plate control
- control shaft
- neutral
- work vehicle
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing
- B60K17/10—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location or kind of gearing of fluid gearing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/02—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of clutch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangement or mounting of propulsion-unit control devices in vehicles
- B60K26/02—Arrangement or mounting of propulsion-unit control devices in vehicles of initiating means or elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K26/00—Arrangement or mounting of propulsion-unit control devices in vehicles
- B60K26/04—Arrangement or mounting of propulsion-unit control devices in vehicles of means connecting initiating means or elements to propulsion unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/04—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D31/00—Use of speed-sensing governors to control combustion engines, not otherwise provided for
- F02D31/001—Electric control of rotation speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/16—Type of output information
- B60K2360/167—Vehicle dynamics information
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/21—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor using visual output, e.g. blinking lights or matrix displays
- B60K35/22—Display screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/20—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor
- B60K35/28—Output arrangements, i.e. from vehicle to user, associated with vehicle functions or specially adapted therefor characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0038—Engine compartment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
- F16H63/50—Signals to an engine or motor
- F16H63/502—Signals to an engine or motor for smoothing gear shifts
Definitions
- the present invention relates to an agricultural work vehicle used for cultivating crops necessary for human life using land.
- Agricultural work vehicles are used to grow crops necessary for human life using land.
- a combine, a tractor, a rice transplanter, etc. correspond to agricultural work vehicles.
- the combine is to thresh crops such as rice, barley, wheat, and soybeans.
- a tractor uses traction to perform the work necessary to grow crops.
- the rice transplanter performs the work of transplanting seedlings grown in a nail bed or a seedling box to a paddy field.
- FIG. 1 is a schematic block diagram of an agricultural work vehicle according to the prior art.
- the agricultural work vehicle 100 is a hydraulic transmission (HST, Hydrostatic Transmission) 110 that performs a shift with respect to the drive generated by the engine 200, the hydraulic transmission 110
- the HST pedal 120 connected to the swash plate control shaft 111, the sensor unit 130 for detecting the rotation of the HST pedal 120, and the rotation of the engine 200 according to the detection value of the sensor unit 130 It includes a control unit 140 for controlling the number (RPM).
- the HST pedal 120 is connected to the swash plate control shaft 111 through a connection link 121 using a linkage.
- the HST pedal 120 When the driver operates the HST pedal 120 , the HST pedal 120 rotates and rotates the swash plate control shaft 111 through the connection link 121 so that the hydraulic transmission 110 performs a shift. do.
- the sensor unit 130 detects the rotation of the HST pedal 120 to obtain the detected value.
- the sensor unit 130 may directly detect the rotation of the HST pedal 120 or indirectly sense the rotation of the HST pedal 120 by detecting the movement of the connection link 121 .
- the control unit 140 controls the rotation speed of the engine 200 according to the detection value. Accordingly, the agricultural work vehicle 100 according to the prior art controls the rotation speed of the engine 200 to correspond to the shift performed by the hydraulic transmission 110 .
- the sensor unit 130 detects the rotation of the HST pedal 120 or the movement of the connection link 121 in controlling the rotation speed of the engine 200 . It is implemented to use the sensed value obtained by doing so.
- the HST pedal 120 is connected to the swash plate control shaft 111 through the connection link 121 , the agricultural work vehicle 100 according to the prior art has manufacturing deviation, the swash plate control shaft 111 and the The sensed value may not be accurate due to the complexity of the structure of the connection link 121 connecting the HST pedal 120 .
- the agricultural work vehicle 100 must implement a large dead section for the sensed value.
- the control unit 140 does not reflect the detected value in controlling the number of revolutions of the engine 200 . implemented so that Only after the sensed value exceeds the dead section according to the manipulation of the HST pedal 120 , the controller 140 is implemented to control the rotation speed of the engine 200 using the sensed value.
- the agricultural work vehicle 100 uses the detection value obtained by the sensor unit 130 detecting the rotation of the HST pedal 120 or the movement of the connection link 121 , A deviation generated between the operation amount for the HST pedal 120 and the actual operation amount of the swash plate of the hydraulic transmission 110 is inevitably reflected in the sensed value.
- the present invention has been devised to solve the above-described problems, and to provide an agricultural work vehicle capable of reducing a dead section with respect to a detection value for detecting a shift performed by a hydraulic transmission.
- An object of the present invention is to provide an agricultural work vehicle capable of reducing the effect of a deviation generated between an operation amount for an HST pedal and an actual operation amount of a swash plate of a hydraulic transmission on a detection value for detecting a shift performed by a hydraulic transmission.
- the present invention may include the following configuration.
- An agricultural work vehicle includes a vehicle body supporting an engine; a hydraulic transmission for shifting the drive generated by the engine; an HST pedal connected to the swash plate control shaft of the hydraulic transmission and configured to rotate the swash plate control shaft; a sensor unit directly coupled to the swash plate control shaft to detect the rotation of the swash plate control shaft to obtain a sensed value; and a controller configured to control the number of revolutions of the engine according to the sensed value.
- the present invention can reduce the dead section for the detection value for detecting the shift performed by the hydraulic transmission, so that the accuracy of the operation of controlling the engine speed to correspond to the shift performed by the hydraulic transmission can be improved.
- the present invention can reduce the effect of the deviation generated between the operation amount for the HST pedal and the actual operation amount of the swash plate of the hydraulic transmission on the detection value for detecting the shift performed by the hydraulic transmission, so that the shift performed by the hydraulic transmission and the engine Accuracy can be improved in interlocking the rotation speed of
- FIG. 1 is a schematic block diagram of an agricultural work vehicle according to the prior art
- FIG. 2 is a schematic side view showing an example of an agricultural work vehicle according to the present invention.
- FIG. 3 is a schematic perspective view showing a hydraulic transmission, an HST pedal, and a sensor unit in an agricultural work vehicle according to the present invention
- FIG. 4 is a schematic block diagram showing an example of an agricultural work vehicle according to the present invention.
- FIG. 5 is a schematic partial sectional side view for explaining the arrangement relationship between the swash plate control shaft, the sensor part, and the support part in the agricultural work vehicle according to the present invention
- FIG. 6 is a schematic exploded perspective view of the swash plate control shaft and the sensing member in the agricultural work vehicle according to the present invention.
- FIG. 7 is a schematic exploded perspective view of a sensor unit and a support unit in an agricultural work vehicle according to the present invention.
- FIG. 8 is a schematic front view of the coupling member in the agricultural work vehicle according to the present invention.
- FIG. 9 is a schematic front view for explaining the coupling relationship between the coupling member, the swash plate control shaft, and the first link member in the agricultural work vehicle according to the present invention.
- FIG. 10 is a conceptual plan view for explaining the connection relationship between the swash plate control shaft and the adjustment mechanism in the agricultural work vehicle according to the present invention
- 11 to 13 are conceptual side views for explaining the operating relationship between the swash plate control shaft and the adjustment mechanism in the agricultural work vehicle according to the present invention
- the agricultural work vehicle 1 according to the present invention is used to grow crops necessary for human life using land.
- the agricultural work vehicle 1 according to the present invention may be a tractor, a combine, a rice transplanter, and the like.
- the agricultural work vehicle 1 may include a vehicle body 2, a hydraulic transmission (HST, Hydrostatic Transmission) 3, an HST pedal 4, a sensor unit 5, and a control unit 6 have.
- HST Hydrostatic Transmission
- the vehicle body 2 supports the engine 20 .
- the engine 20 , the hydraulic transmission 3 , the HST pedal 4 , and the control unit 6 may be coupled to the vehicle body 2 .
- the vehicle body 2 is provided with a driver's seat 21 for a driver to board.
- a wheel 22 may be coupled to the vehicle body 2 .
- the vehicle body 2 may travel in the traveling direction as the wheels 22 are rotated. .
- the hydraulic transmission 3 performs shifting with respect to the driving generated by the engine 20 .
- the traveling speed at which the vehicle body 2 travels may be changed.
- the hydraulic transmission 3 may perform shifting by using a hydraulic motor (not shown) and a hydraulic pump (not shown).
- the hydraulic transmission 3 may include a swash plate control shaft 31 .
- the swash plate control shaft 31 may be connected to a swash plate (not shown) of the hydraulic transmission 3 .
- the swash plate may be rotated.
- the inclination direction and the inclination angle of the swash plate may be adjusted according to the rotation direction and the rotation angle of the swash plate control shaft 31 .
- the flow rate and flow speed of the working fluid circulated between the hydraulic pump and the hydraulic motor are adjusted, so that the shift can be performed.
- the swash plate control shaft 31 may protrude to the outside of the hydraulic transmission 3 .
- the swash plate control shaft 31 may protrude to the outside of the transmission housing 32 of the hydraulic transmission 3 .
- the transmission housing 32 may correspond to a case for protecting parts of the hydraulic transmission 3 .
- the transmission housing 32 may be coupled to the vehicle body 2 .
- the HST pedal 4 is for controlling the running speed of the vehicle body 2 .
- the HST pedal 4 may be disposed on the driver's seat 21 so that the driver can operate it using his or her feet.
- the HST pedal 4 may be rotatably coupled to the vehicle body 2 .
- the HST pedal 4 may be connected to the swash plate control shaft 31 . Accordingly, when the driver steps on the HST pedal 4 , the HST pedal 4 may rotate by the driver's pressing force to rotate the swash plate control shaft 31 . In this case, the hydraulic transmission 3 may perform a shift to increase the traveling speed of the vehicle body 2 .
- the HST pedal 4 may rotate by the restoring force to rotate the swash plate control shaft 31 .
- the hydraulic transmission 3 may perform a shift to reduce the traveling speed of the vehicle body 2 .
- the HST pedal 4 may be connected to the swash plate control shaft 31 through a link unit 41 .
- the restoring force for rotating the HST pedal 4 may be provided by an elastic member such as a spring coupled to the HST pedal 4 or a hydraulic cylinder using a working fluid.
- the link unit 41 may transmit a rotational force according to the rotation of the HST pedal 4 to the swash plate control shaft 31 using a plurality of link members.
- the sensor unit 5 detects the rotation of the swash plate control shaft 31 to acquire the sensed value.
- the sensor unit 5 may provide the sensed value to the control unit 6 .
- the control unit 6 may control the rotation speed of the engine 20 according to the sensed value. Accordingly, the agricultural work vehicle 1 according to the present invention can control the rotation speed of the engine 20 to correspond to the shift performed by the hydraulic transmission 3 .
- the sensor unit 5 may be directly coupled to the swash plate control shaft 31 . Accordingly, the sensor unit 5 may directly detect the rotation of the swash plate control shaft 31 to obtain the sensed value. Accordingly, the agricultural work vehicle 1 according to the present invention can achieve the following effects.
- the sensor unit 130 detects the rotation of the HST pedal 120 or the movement of the connection link 121 to indirectly detect the rotation of the swash plate control shaft 111 .
- the dead section for the detected value of the sensor unit 130 according to the rotation of the HST pedal 120 or the movement of the connection link 121 in consideration of manufacturing deviation, operation deviation, etc. do. Therefore, in the comparative example, after the detection value of the sensor unit 130 according to the rotation of the HST pedal 120 or movement of the connection link 121 exceeds the dead section, the engine ( 200) is implemented to control the number of rotations.
- the comparative example when the degree of manipulation of the HST pedal 120 is small, the sensed value cannot be reflected in controlling the rotation speed of the engine 200 . Therefore, the comparative example has a problem in that the accuracy of the rotation speed control of the engine 200 is low.
- the sensor unit 130 uses the detected value obtained by detecting the rotation of the HST pedal 120 or the movement of the connection link 121 , the amount of manipulation for the HST pedal 120 .
- a deviation generated between the actual operation amount of the swash plate of the hydraulic transmission 110 and the hydraulic transmission 110 is inevitably reflected in the sensed value.
- the accuracy is low in interlocking the speed change performed by the hydraulic transmission 110 and the rotation speed of the engine 200 .
- the sensor unit 5 is directly coupled to the swash plate control shaft 31 . Since it is implemented to directly sense the rotation, it is possible to eliminate or significantly reduce the dead section in the comparative example. This is because when the swash plate control shaft 31 is rotated as the HST pedal 4 is rotated, the sensor unit 5 directly senses the rotation of the swash plate control shaft 31 to obtain the sensed value.
- the HST pedal It is possible to reduce the influence of the deviation generated between the operation amount for 4) and the actual operation amount of the swash plate of the hydraulic transmission 3 on the sensed value. Therefore, since the agricultural work vehicle 1 according to the present invention can accurately control the rotation speed of the engine 20 to correspond to the shift by the hydraulic transmission 3, the rotation speed control of the engine 200 is accuracy can be improved.
- the sensor unit 5 may be disposed on the rotational center axis of the swash plate control shaft 31 .
- the sensor unit 5 may be directly coupled to the swash plate control shaft 31 on an extension of the rotation center axis of the swash plate control shaft 31 to form a straight line with the swash plate control shaft 31 .
- the sensor unit 5 may include a sensing member 51 and an acquisition mechanism 52 .
- the sensing member 51 is coupled to the swash plate control shaft 31 .
- the sensing member 51 may be inserted into the sensing groove 311 (shown in FIG. 6 ) formed in the swash plate control shaft 31 . Accordingly, the sensing member 51 may rotate together as the swash plate control shaft 31 rotates. Accordingly, the sensor unit 5 may directly detect the rotation of the swash plate control shaft 31 using the sensing member 51 inserted into the sensing groove 311 .
- the sensing groove 311 may be implemented as a groove formed in the protruding surface 312 of the swash plate control shaft 31 .
- the protruding surface 312 of the swash plate control shaft 31 may correspond to an end surface disposed in a direction in which the swash plate control shaft 31 protrudes from the transmission housing 32 .
- the sensing member 51 may be formed in a rectangular plate shape as a whole, but is not limited thereto. If it is inserted into the sensing groove 311 and can be rotated together with the swash plate control shaft 31, it may be formed in another shape such as a disc shape. have.
- the sensing groove 311 may be formed in a form complementary to the sensing member 51 .
- the acquisition mechanism 52 may acquire the sensed value by detecting the rotation of the swash plate control shaft 31 through the rotation of the sensing member 51 .
- the acquisition mechanism 52 may be connected to the detection member 51 to detect the rotation of the detection member 51 .
- the acquisition mechanism 52 may provide the acquired detection value to the control unit 6 through wired communication, wireless communication, or the like.
- the control unit 6 controls the rotation speed of the engine 200 according to the sensing value obtained by the sensor unit 5 . After generating a control signal corresponding to the sensed value, the control unit 6 may control the rotation speed of the engine 200 by transmitting the control signal. For example, as the HST pedal 4 rotates by the driver's stepping force and rotates the swash plate control shaft 31, the hydraulic transmission 3 increases the traveling speed of the vehicle body 2 In this case, the controller 6 may control the engine 200 to increase the rotation speed of the engine 200 . For example, as the HST pedal 4 rotates by the restoring force and rotates the swash plate control shaft 31 , the hydraulic transmission 3 reduces the traveling speed of the vehicle body 2 When performing a shift. , the controller 6 may control the engine 200 so that the rotation speed of the engine 200 is reduced.
- the control unit 6 may be implemented as an electronic control unit (ECU).
- the agricultural work vehicle 1 may include a support part 7 .
- the support part 7 supports the sensor part 5 .
- the sensor unit 5 may be maintained in a state directly coupled to the swash plate control shaft 31 by being supported by the support unit 7 .
- the support part 7 may be coupled to the transmission housing 32 .
- the support 7 may be coupled to the clutch housing 23 (shown in FIG. 5).
- the clutch housing 23 accommodates a clutch (not shown) of the agricultural work vehicle 1 according to the present invention.
- the support part 7 may be coupled to at least one of the transmission housing 32 and the clutch housing 23 .
- the support part 7 may include a support body 71 .
- the support body 71 constitutes the overall appearance of the support part 7 .
- the support body 71 may be disposed at a position spaced apart from the mission housing 32 .
- the swash plate control shaft 31 may be disposed between the support body 71 and the transmission housing 32 .
- the link part 41 connected to the HST pedal 4 may be connected to the swash plate control shaft 31 between the support body 71 and the transmission housing 32 .
- the link part 41 may be connected to the swash plate control shaft 31 .
- the link part 41 may rotate the swash plate control shaft 31 while being moved in association with the rotation of the HST pedal 4 .
- the support body 71 may be formed in a plate shape of a T-shape as a whole, but is not limited thereto, and if it is a form capable of supporting the sensor unit 5 at a position spaced apart from the mission housing 32 , It may be formed in other shapes.
- the support body 71 may support the sensor unit 5 .
- a sensor cover 50 (shown in FIG. 5 ) of the sensor unit 5 may be coupled to the support body 71 .
- the sensor cover 50 accommodates the sensing member 51 and the acquisition mechanism 52 .
- the sensing member 51 may be disposed to protrude from the sensor cover 50 .
- the sensor cover 50 may be coupled to the support body 71 from the opposite side of the swash plate control shaft 31 with respect to the support body 71 . Accordingly, the agricultural work vehicle 1 according to the present invention is implemented so that the sensor cover 50 does not interfere with the link portion 41 disposed between the support body 71 and the transmission housing 32 .
- the agricultural work vehicle (1) secures support for the sensor unit (5) using the coupling between the sensor cover (50) and the support body (71) and at the same time, the HST pedal (4) ) may be implemented so that the swash plate control shaft 31 rotates smoothly according to the rotation.
- the support 7 may include a connection hole 72 .
- connection hole 72 is formed through the support body 71 .
- the sensing member 51 may be inserted into the connection hole 72 to be coupled to the swash plate control shaft 31 positioned on the opposite side of the sensor cover 50 with respect to the support body 71 as a reference. Accordingly, in the agricultural work vehicle 1 according to the present invention, even if the sensor cover 50 is disposed so as not to interfere with the connection between the HST pedal 4 and the swash plate control shaft 31, the sensing member 51 is implemented to directly sense the rotation of the swash plate control shaft 31 through the connection hole 72 .
- connection hole 72 may be formed in a disk shape as a whole, but is not limited thereto, and if the sensing member 51 can be inserted to be coupled to the swash plate control shaft 31, it may be formed in another shape such as a square plate shape. it might be
- the support part 7 may include an adjustment hole 73 .
- the adjustment hole 73 is formed through the support body 71 .
- the adjustment hole 73 may be disposed to face the adjustment mechanism 33 (shown in FIG. 7 ).
- the adjustment mechanism 33 is for adjusting the neutral position of the swash plate control shaft 31 , and may be disposed to protrude from the transmission housing 32 .
- the adjustment mechanism 33 may be disposed at a position spaced apart from the swash plate control shaft 31 .
- An adjustment groove 331 may be formed in the adjustment mechanism 33 .
- the adjustment groove 331 may be formed on the front surface 332 of the adjustment mechanism 33 .
- the front surface 332 is a surface of the adjustment mechanism 33 disposed to face the adjustment hole 73 .
- the support body 71 includes the transmission housing 32 and the clutch housing 23. It is implemented so that the operator can perform an adjustment operation of adjusting the neutral position of the swash plate control shaft 31 by using the adjustment mechanism 33 through the adjustment hole 73 even in a state coupled to at least one of them.
- the adjustment hole 73 may be formed in a disk shape as a whole, but is not limited thereto, and may be formed in other shapes such as a square plate shape as long as it can provide a space in which the adjustment operation can be performed.
- the support body 71 has the adjustment hole 73 facing the adjustment mechanism 33 and the The connection hole 72 may be disposed to face the swash plate control shaft 31 .
- the agricultural work vehicle 1 includes a coupling member 43 (shown in FIGS. 8 and 9 ) to improve interoperability between the HST pedal 4 and the swash plate control shaft 31 . can be implemented.
- the coupling member 43 is coupled to the swash plate control shaft 31 .
- the coupling member 43 may be coupled to the swash plate control shaft 31 so as to be in contact with the outer surface of the swash plate control shaft 31 . Accordingly, the coupling member 43 may be coupled to the swash plate control shaft 31 so as not to interfere with the sensing member 51 coupled to the protruding surface 312 of the swash plate control shaft 31 .
- the first link member 42 of the link part 41 may be coupled to the coupling member 43 . Accordingly, the first link member 42 may rotate the swash plate control shaft 31 through the coupling member 43 while moving according to the rotation of the HST pedal 4 .
- the coupling member 43 may include a coupling body 431 , an insertion hole 432 , a first tightening member 433 , a second tightening member 434 , and a fastening member 435 .
- the coupling body 431 is coupled to the first link member 42 .
- the coupling body 431 may be rotated as the first link member 42 moves.
- the insertion hole 432 is to which the swash plate control shaft 31 is inserted.
- the swash plate control shaft 31 may be inserted into the insertion hole 432 to be connected to rotate together as the coupling body 431 rotates.
- the first tightening member 433 protrudes from the coupling body 431 at one side of the insertion hole 432 .
- the first tightening member 433 may press one side of the swash plate control shaft 31 inserted into the insertion hole 432 .
- the width 433H for the portion of the first tightening member 433 coupled to the coupling body 431 is shorter than the width 431H of the coupling body 431 .
- the first tightening member 433 may be elastically moved based on a portion coupled to the coupling body 431 .
- the second tightening member 434 protrudes from the coupling body 431 at the other side of the insertion hole 432 .
- the second tightening member 434 may press the other side of the swash plate control shaft 31 inserted into the insertion hole 432 .
- the width 434H of the portion of the second tightening member 434 coupled to the coupling body 431 is shorter than the width 431H of the coupling body 431.
- the second tightening member 434 may be elastically moved based on a portion coupled to the coupling body 431 .
- the insertion hole 432 may be disposed between the second tightening member 434 and the first tightening member 433 .
- the second tightening member 434 and the first tightening member 433 use a pressing force for pressing the swash plate control shaft 31 inserted into the insertion hole 432, the coupling member 43 and the swash plate control shaft 31 may be connected to each other to rotate together.
- the fastening member 435 is fastened to the first fastening member 433 and the second fastening member 434 . According to the degree to which the fastening member 435 is fastened to the first fastening member 433 and the second fastening member 434, the first fastening member 433 and the second fastening member 434 are the The pressing force for pressing the swash plate control shaft 31 may be adjusted. Accordingly, the agricultural work vehicle 1 according to the present invention is implemented to improve interoperability between the coupling member 43 and the swash plate control shaft 31 by using the fastening member 435, thereby reducing the manufacturing tolerance. Due to this, it is possible to prevent deterioration of interoperability between the coupling member 43 and the swash plate control shaft 31 .
- the fastening member 435 rotates for fastening the first fastening member 433 and the second fastening member ( By being further fastened to 434 , the first tightening member 433 and the second tightening member 434 may be moved in a direction closer to each other. Accordingly, since the pressing force for pressing the swash plate control shaft 31 inserted into the insertion hole 432 by the first tightening member 433 and the second tightening member 434 is increased, the coupling member 43 ) and the interoperability between the swash plate control shaft 31 may be improved.
- the agricultural work vehicle 1 since interoperability between the HST pedal 4 and the swash plate control shaft 31 is improved, the agricultural work vehicle 1 according to the present invention operates the HST pedal 4 through the operation of the swash plate control shaft 31 ) to be more precisely and precisely adjusted.
- the agricultural work vehicle 1 may include a neutral acquisition unit 81 and a display unit 82 .
- the neutral acquisition unit 81 acquires a neutral acquisition value with respect to the neutral position of the swash plate control shaft 31 by using the sensed value acquired by the sensor unit 5 .
- the neutral position of the swash plate control shaft 31 may mean the position of the swash plate control shaft 31 when the hydraulic transmission 3 is in a neutral state in which forward or reverse shifting is not performed.
- the neutral acquisition unit 81 may receive the detection value from the sensor unit 5 and acquire the neutral acquisition value by using the detection value.
- the neutral acquisition unit 81 may acquire a neutral acquisition value defined as a voltage value (V).
- the display unit 82 displays various pieces of information.
- the display unit 82 may display the neutral acquisition value obtained by the neutral acquisition unit 81 . Accordingly, since the agricultural work vehicle 1 according to the present invention is implemented so that the neutral obtained value can be confirmed through the display unit 82 , it is easy to check the neutral position of the swash plate control shaft 31 . can improve
- the display unit 82 may be installed in the driver's seat 21 .
- the agricultural work vehicle 1 may include a neutral recognition unit 83 and a neutral correction unit 84 .
- the neutral recognition unit 83 is to store the neutral recognition value.
- the neutral recognition value is a reference value for controlling the number of revolutions of the engine 20 .
- the control unit 6 may control the rotation speed of the engine 20 by using a difference between the neutral recognition value and the sensed value.
- the hydraulic transmission 3 may cause deviations in internal mechanisms by continued use. When the internal deviation of the hydraulic transmission 3 does not occur, the neutral recognition value and the neutral acquisition value may be the same. When an internal deviation of the hydraulic transmission 3 occurs, the neutral recognition value and the neutral acquisition value may be different from each other.
- the display unit 82 may display the neutral recognition value and the neutral acquired value.
- the agricultural work vehicle 1 is implemented so that it can be checked whether the neutral recognition value and the neutral obtained value are the same through the display unit 82, so that the hydraulic transmission 3 It can improve the easiness of the operation to check whether the internal deviation of .
- the neutral recognition value may be a value defined as a voltage value (V).
- the display unit 82 may display at least one of the neutral recognition value and the neutral acquired value.
- the neutral correction unit 84 is for correcting the neutral recognition value and the neutral acquisition value to match.
- the operator corrects the neutral recognition value and the neutral acquisition value to match the neutral recognition value through the neutral correction unit 84 can do.
- the neutral correction unit 84 may be implemented to correct the neutral recognition value.
- the operator may correct the neutral recognition value so that the neutral recognition value matches the neutral acquired value through the neutral correction unit 84 .
- the agricultural work vehicle 1 according to the present invention has the engine 20 so as to correspond to the shift performed by the hydraulic transmission 3 only by a simple operation of correcting the neutral recognition value through the neutral correction unit 84 .
- the neutral recognition unit 83 stores the corrected neutral recognition value by using the neutral recognition value corrected by the control unit 6
- the rotation speed of the engine 20 may be controlled.
- the display unit 82 may display the corrected neutral recognition value.
- the display unit 82 displays a process in which the neutral recognition value is changed through the neutral correction unit 84 , thereby improving the easiness of correcting the neutral recognition value.
- the neutral correction unit 84 may be implemented with buttons, switches, etc. that can be operated by an operator.
- the swash plate control shaft 31 when an internal deviation of the hydraulic transmission 3 occurs, the swash plate control shaft 31 using the adjustment mechanism 33 . It can be implemented so that the neutral position of the is corrected.
- the swash plate control shaft 31 and the adjustment mechanism 33 may be interlocked with each other inside the transmission housing 32 .
- the swash plate control shaft 31 may include a swash plate control extension shaft 313 , a swash plate control connection member 314 , and a swash plate drive shaft 315 .
- the adjustment mechanism 33 may include an adjustment extension shaft 333 , an adjustment connection member 334 , and an adjustment eccentric shaft 335 . In this case, the swash plate control extension shaft 313 , the swash plate drive shaft 315 , and the adjustment eccentric shaft 335 may be connected by an interlocking member 34 .
- the swash plate control extension shaft 313 protrudes from the swash plate control shaft 31 .
- the swash plate control extension shaft 313 may protrude from the swash plate control shaft 31 and extend to be located inside the transmission housing 32 .
- the swash plate control extension shaft 313 may be rotated together. In this case, the swash plate control extension shaft 313 may be rotated about the control center point 313a.
- the swash plate control extension shaft 313 and the swash plate control shaft 31 may be integrally formed.
- the swash plate control connecting member 314 connects the swash plate control extension shaft 313 and the swash plate driving shaft 315 .
- One side of the swash plate control connecting member 314 may be coupled to the swash plate control extension shaft 313 , and the other side may be coupled to the swash plate driving shaft 315 .
- the swash plate control connection member 314 may be rotated together. In this case, the swash plate control connection member 314 may be rotated about the control center point 313a of the swash plate control extension shaft 313 .
- the control center point 313a corresponds to the rotation center of the swash plate control extension shaft 313 .
- the swash plate driving shaft 315 is connected to the swash plate to rotate the swash plate.
- One end of the swash plate driving shaft 315 may be coupled to the swash plate control connecting member 314 .
- the other end of the swash plate driving shaft 315 may be connected to the swash plate.
- the swash plate control connection member 314 is rotated around the control center point 313a
- the swash plate drive shaft 315 rotates around the control center point 313a of the swash plate control extension shaft 313 while revolutionizing the The swash plate can be rotated.
- the other end of the swash plate driving shaft 315 may be connected to an actuator (not shown) that rotates the swash plate.
- the swash plate drive shaft 315 may operate the actuator while revolving around the control center point 313a of the swash plate control extension shaft 313 .
- the swash plate may be rotated by the operation of the actuator.
- the stepping force for the operator to operate the HST pedal 4 rotates the HST pedal 4 , moves the link unit 41 , rotates the swash plate control shaft 31 , and extends the swash plate control
- the shaft 313 is rotated, the swash plate control connecting member 314 is rotated, the swash plate driving shaft 315 is revolved, and finally the swash plate is rotated.
- the swash plate control shaft 31 , the swash plate control extension shaft 313 , the swash plate control connection member 314 , and the swash plate drive shaft 315 may be integrally formed.
- the adjustment extension shaft 333 protrudes from the adjustment mechanism 33 .
- the adjustment extension shaft 333 may protrude from the adjustment mechanism 33 and extend to be located inside the transmission housing 32 . When the adjustment mechanism 33 is rotated, the adjustment extension shaft 333 may be rotated together.
- the adjustment extension shaft 333 and the adjustment mechanism 33 may be integrally formed.
- the adjustment connecting member 334 connects the adjustment extension shaft 333 and the adjustment eccentric shaft 335 .
- One surface of the adjustment connection member 334 may be coupled to the adjustment extension shaft 333
- the other surface of the adjustment connection member 334 may be coupled to the adjustment eccentric shaft 335 .
- the adjustment eccentric shaft 335 may be coupled to the adjustment connection member 334 .
- the adjustment eccentric shaft 335 may be disposed to be spaced apart from the adjustment center point 334a of the adjustment extension shaft 333 and the adjustment connection member 334 .
- the adjustment center point 334a corresponds to the rotation center of the adjustment extension shaft 333 and the adjustment connection member 334 .
- the adjustment eccentric shaft 335 may revolve around the adjustment center point 334a. That is, when the adjustment connection member 334 is rotated in place, the adjustment eccentric shaft 335 may be swingably moved around the adjustment center point 334a.
- the operation force of the operator adjusting the adjustment mechanism 33 through the adjustment hole 73 rotates the adjustment mechanism 33 , rotates the adjustment extension shaft 333 , and closes the adjustment connection member 334 . rotate, and the adjustment eccentric shaft 335 revolves.
- the adjustment mechanism 33 , the adjustment extension shaft 333 , the adjustment connection member 334 , and the adjustment eccentric shaft 335 may be integrally formed.
- the interlocking member 34 transmits the operating force transmitted through the revolution of the adjustment eccentric shaft 335 to the swash plate driving shaft 315 . Accordingly, the interlocking member 34 may allow the adjustment eccentric shaft 335 and the swash plate driving shaft 315 to move in interlocking motion.
- One side of the interlocking member 34 may be connected to the swash plate control extension shaft 313 , and the other side may be connected to the adjustment eccentric shaft 335 .
- the swash plate driving shaft 315 may be disposed between one side of the interlocking member 34 and the other side of the interlocking member 34 .
- the interlocking member 34 having the other side connected to the adjustment eccentric shaft 335 is the control center point of the swash plate control extension shaft 313 . It is rotated around 313a, and the swash plate driving shaft 315 may revolve around the control center point 313a of the swash plate control extension shaft 313 .
- the interlocking member 34 may be implemented as a torsion spring.
- the adjustment eccentric shaft 335 is rotated around the adjustment center point 334a.
- the other side of the interlocking member 34 may be moved while revolving in the clockwise direction. Accordingly, the interlocking member 34 may rotate the swash plate driving shaft 315 in a counterclockwise direction around the control center point 313a while rotating counterclockwise around the control center point 313a. Accordingly, the swash plate driving shaft 315 may swing in a counterclockwise direction around the control center point 313a. Accordingly, counterclockwise correction of the swash plate control shaft 31 may be performed.
- the adjustment eccentric shaft 335 is the center of the adjustment center point 334a.
- the other side of the interlocking member 34 can be moved. Accordingly, the interlocking member 34 may rotate clockwise around the control center point 313a to cause the swash plate driving shaft 315 to revolve in a clockwise direction about the control center point 313a. Accordingly, the swash plate driving shaft 315 may swing clockwise around the control center point 313a. Accordingly, the swash plate control shaft 31 may be corrected in the clockwise direction.
- the agricultural work vehicle 1 may include both the adjustment mechanism 33 and the neutral correction unit 84 .
- the operator may respond through the adjustment mechanism 33 and the neutral correction unit 84 .
- the operator may correct the neutral position of the swash plate control shaft 31 to correspond to the internal deviation of the hydraulic transmission 3 through the manipulation of the adjustment mechanism 33 .
- the neutral acquisition value may be changed in response to the correction of the neutral position of the swash plate control shaft 31 .
- the agricultural work vehicle 1 is implemented to include both the adjustment mechanism 33 and the neutral correction unit 84, so that when the neutral recognition value and the neutral acquisition value are different from each other, The ability to respond can be improved.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Transportation (AREA)
- Gear-Shifting Mechanisms (AREA)
- Transplanting Machines (AREA)
- Harvester Elements (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Control Of Fluid Gearings (AREA)
Abstract
Description
Claims (10)
- 엔진을 지지하는 차량본체;상기 엔진이 발생시킨 구동에 대해 변속을 수행하는 유압트랜스미션;상기 유압트랜스미션의 사판제어축에 연결되고, 상기 사판제어축을 회전시키기 위한 HST페달;상기 사판제어축에 직접 결합되어서 상기 사판제어축의 회전을 감지하여 감지값을 획득하는 센서부; 및상기 감지값에 따라 상기 엔진의 회전수를 제어하는 제어부를 포함하는 농업용 작업차량.
- 제1항에 있어서,상기 센서부는 상기 사판제어축의 회전중심축 상에 배치된 것을 특징으로 하는 농업용 작업차량.
- 제1항에 있어서,상기 사판제어축에는 상기 센서부가 삽입되기 위한 감지홈이 형성되고,상기 센서부는 상기 감지홈에 삽입되어서 상기 사판제어축과 함께 회전되는 감지부재, 및 상기 감지부재의 회전을 통해 상기 사판제어축의 회전을 감지하여 상기 감지값을 획득하는 획득기구를 포함하는 것을 특징으로 하는 농업용 작업차량.
- 제1항에 있어서,상기 센서부를 지지하는 지지부를 포함하고,상기 지지부는 상기 센서부가 갖는 센서커버가 결합된 지지본체를 포함하는 것을 특징으로 하는 농업용 작업차량.
- 제4항에 있어서,상기 지지부는 상기 지지본체를 관통하여 형성된 연결공을 포함하고,상기 센서부는 상기 사판제어축에 결합되는 감지부재를 포함하며,상기 감지부재는 상기 연결공에 삽입되어서 상기 사판제어축에 결합된 것을 특징으로 하는 농업용 작업차량.
- 제4항에 있어서,상기 지지부는 상기 지지본체를 관통하여 형성된 조정공을 포함하고,상기 조정공은 상기 사판제어축의 중립위치를 조정하기 위한 조정기구에 대향되게 배치된 것을 특징으로 하는 농업용 작업차량.
- 제1항에 있어서,상기 센서부를 지지하는 지지부를 포함하고,상기 지지부는 클러치를 수용하기 위한 클러치하우징 및 상기 유압트랜스미션이 갖는 미션하우징 중에서 적어도 하나에 결합된 것을 특징으로 하는 농업용 작업차량.
- 제1항에 있어서,상기 감지값을 이용하여 상기 사판제어축의 중립위치에 관한 중립획득값을 획득하는 중립획득부를 포함하는 것을 특징으로 하는 농업용 작업차량.
- 제8항에 있어서,상기 엔진의 회전수를 제어하기 위한 기준이 되는 중립인식값을 저장하는 중립인식부, 및 상기 중립인식값과 상기 중립획득값이 일치하도록 보정하기 위한 중립보정부를 포함하고,상기 제어부는 상기 중립인식값과 상기 감지값 간의 차이를 이용하여 상기 엔진의 회전수를 제어하는 것을 특징으로 하는 농업용 작업차량.
- 제9항에 있어서,상기 중립인식값과 상기 중립획득값 중에서 적어도 하나를 표시하는 디스플레이부를 포함하는 것을 특징으로 하는 농업용 작업차량.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21804940.1A EP4151443B1 (en) | 2020-05-15 | 2021-05-10 | Agricultural work vehicle |
| CN202180033247.1A CN115515812A (zh) | 2020-05-15 | 2021-05-10 | 农业用作业车辆 |
| US17/925,448 US11781496B2 (en) | 2020-05-15 | 2021-05-10 | Agricultural work vehicle |
| JP2022561640A JP7511667B2 (ja) | 2020-05-15 | 2021-05-10 | 農業用作業車両 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2020-0058427 | 2020-05-15 | ||
| KR20200058427 | 2020-05-15 | ||
| KR1020210057621A KR102294104B1 (ko) | 2020-05-15 | 2021-05-04 | 농업용 작업차량 |
| KR10-2021-0057621 | 2021-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021230588A1 true WO2021230588A1 (ko) | 2021-11-18 |
Family
ID=77465500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2021/005795 Ceased WO2021230588A1 (ko) | 2020-05-15 | 2021-05-10 | 농업용 작업차량 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11781496B2 (ko) |
| EP (1) | EP4151443B1 (ko) |
| JP (1) | JP7511667B2 (ko) |
| KR (1) | KR102294104B1 (ko) |
| CN (1) | CN115515812A (ko) |
| WO (1) | WO2021230588A1 (ko) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240140470A (ko) | 2023-03-17 | 2024-09-24 | 엘에스엠트론 주식회사 | 작업차량용 정유압변속기의 제어시스템 및 그 제어방법 |
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-
2021
- 2021-05-04 KR KR1020210057621A patent/KR102294104B1/ko active Active
- 2021-05-10 CN CN202180033247.1A patent/CN115515812A/zh active Pending
- 2021-05-10 EP EP21804940.1A patent/EP4151443B1/en active Active
- 2021-05-10 US US17/925,448 patent/US11781496B2/en active Active
- 2021-05-10 JP JP2022561640A patent/JP7511667B2/ja active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| US20230184182A1 (en) | 2023-06-15 |
| EP4151443C0 (en) | 2025-10-29 |
| EP4151443A1 (en) | 2023-03-22 |
| EP4151443A4 (en) | 2024-05-15 |
| CN115515812A (zh) | 2022-12-23 |
| JP2023521148A (ja) | 2023-05-23 |
| EP4151443B1 (en) | 2025-10-29 |
| JP7511667B2 (ja) | 2024-07-05 |
| US11781496B2 (en) | 2023-10-10 |
| KR102294104B1 (ko) | 2021-08-26 |
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