WO2013144955A2 - Module de commutation d'accumulateur - Google Patents

Module de commutation d'accumulateur Download PDF

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Publication number
WO2013144955A2
WO2013144955A2 PCT/IL2013/050275 IL2013050275W WO2013144955A2 WO 2013144955 A2 WO2013144955 A2 WO 2013144955A2 IL 2013050275 W IL2013050275 W IL 2013050275W WO 2013144955 A2 WO2013144955 A2 WO 2013144955A2
Authority
WO
WIPO (PCT)
Prior art keywords
actuator
battery
vehicle
switch module
battery pack
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/IL2013/050275
Other languages
English (en)
Other versions
WO2013144955A3 (fr
Inventor
Yoav Heichal
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.)
Better Place GmbH
BETTER PLACE LABS ISRAEL Ltd
Original Assignee
Better Place GmbH
BETTER PLACE LABS ISRAEL 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 Better Place GmbH, BETTER PLACE LABS ISRAEL Ltd filed Critical Better Place GmbH
Publication of WO2013144955A2 publication Critical patent/WO2013144955A2/fr
Publication of WO2013144955A3 publication Critical patent/WO2013144955A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
    • 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
    • B60L53/80—Exchanging energy storage elements, e.g. removable batteries
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
    • B60K2001/0438—Arrangement under the floor
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • 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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
    • B60K2001/0455—Removal or replacement of the energy storages
    • B60K2001/0472—Removal or replacement of the energy storages from below
    • 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
    • Y02T90/12—Electric charging stations
    • 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
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Definitions

  • This invention relates to the field of electric cars with switchable batteries.
  • a vehicle e.g., cars, trucks, planes, boats, etc.
  • fossil fuels like oil, used to power automobiles have numerous drawbacks including: a dependence on limited foreign sources for these fossil fuels, pollution, and climate change.
  • One solution to these problems is to increase the fuel economy of automobiles.
  • hybrid electric vehicles HEV
  • hybrid vehicles have been introduced, which have fuel economies that are substantially higher than the fuel economy of their traditional non-hybrid counterparts.
  • hybrid vehicles do not eliminate the need for fossil fuels.
  • FCEV fuel cell electric vehicles
  • Battery energy density is still very low comparing to fossil fuels. Batteries are costly and may add as much as 40% to the cost of a vehicle. Furthermore, batteries can take many hours to recharge.
  • the present disclosure presents a novel battery switch system utilizing a battery switch module (BSM) configured and operable for replacing batteries of different types.
  • BSM battery switch module
  • the BSM allows using a single mechanical tool to be able to interface and replace a variety of battery packs having different physical dimensions (length, width, thickness) with different number and relative locations of locks that hold the battery pack in to place in the battery bay. This will allow creation of a BSS that is capable of servicing different types of EVs with different sizes and different battery packs shapes.
  • the proposed BSM achieves this objective without the use of different customized tools for each battery pack as it is done today and without increasing the complexity of the battery equipment located on the vehicle.
  • an alternative method to create a BSS capable of interfacing many types of vehicles and batteries would be to use battery locking mechanisms, in the car, which include actuation motors in order to lock/unlock the battery.
  • the BSS would only need to receive (support) the battery and would be a very generic and simple interface that can support many different types of cars and batteries.
  • the vehicle would be responsible to engage and disengage the battery to/from the car.
  • the proposed BSM maintains the generic interface with cars and batteries, but locates the actuating elements in the BSS, instead than in the car. By that, the proposed BSM can help reduce the cost and complexity of the equipments embedded in the EVs.
  • the present disclosure provides a battery switch module for switching a battery pack attachable to an underside of a vehicle by one or more latch mechanisms.
  • the battery switch module comprises an actuator frame comprising one or more actuators configured and operable to collaborate with the one or more latch mechanisms, the one or more actuators being mounted on the actuator frame for movement with respect to the frame.
  • At least one of the actuators comprises a base, a drive shaft projecting from the base, the drive shaft being configured to engage with a socket in at least one of the latch mechanisms; and an actuator motor configured to rotate the drive shaft upon engagement in the socket for actuating the latch mechanism.
  • the actuator frame further comprises at least one actuator carriage configured to receive one of the actuators, the actuator carriage being motorized so as to be movable over the actuator frame along at least two directions.
  • the actuator further comprises a battery support pad configured to hold the battery pack.
  • At least one of the actuators further comprises a reference pin mounted on the battery support pad and configured to engage in a reference hole of the battery pack.
  • the at least one actuator received in the actuator carriage has motion capability within the actuator carriage.
  • the actuator is configured to be lifted within the actuator carriage.
  • the actuator and the actuator carriage are configured to allow horizontal floating of the actuator with respect to the actuator carriage.
  • At least one actuator comprises a self aligning ball at the end of the drive shaft capable of handling angular misalignments between the actuator and the latch mechanism.
  • the self aligning ball comprises a plunger for detecting proper engagement into the latch mechanism.
  • the actuator frame is adaptable on a base plate for holding the battery switch module and the actuator frame further comprises a float coupling mechanism configured to couple the actuator frame to the base plate so as to allow a slipping movement of the actuator frame with respect to the base plate.
  • the float coupling mechanism comprises a caster ball bearing.
  • the present disclosure provides a system for battery switching comprising a battery switch module according to any one of the preceding claims; a base plate for holding the battery switch module; and a lifting mechanism configured to lift the base plate.
  • the lifting mechanism is integral with the base plate.
  • the base plate further comprises a slipping limitation mechanism configured to limit the slipping movement of the actuator frame with respect to the base plate.
  • the base plate and the actuator frame comprise traversing holes and the slipping limitation mechanism comprises a rod caged into the traversing holes.
  • system further comprises one or more latch mechanism intended to be positioned on the vehicle for locking the battery pack in a battery bay of the vehicle.
  • the present disclosure provides a battery bay for mounting in a vehicle to be accessible from an underside of the vehicle, the battery bay being configured for connecting to and holding a battery pack, and comprising one or more latch mechanisms configured to collaborate with the one or more actuators of the battery switch module as previously described to thereby lock and unlock said one or more latch mechanisms.
  • the present disclosure provides a method of switching a battery pack at an underside of a vehicle.
  • the method comprises determining a battery pack and a vehicle types when the vehicle is in proximity of a system for switching battery pack; adapting the system for switching battery pack to the battery pack and vehicle types; switching the battery pack from the vehicle using the system for switching battery pack.
  • the adapting comprises displacing actuators configured to collaborate with latch mechanism retaining the battery pack in the vehicle on an actuator frame so that the actuators be positioned in an actuator reference position based on the battery pack and vehicle types.
  • switching comprises positioning the vehicle in a vehicle reference position with respect to the system for switching battery pack so that the latch mechanisms and the actuators are at least sufficiently aligned.
  • the present invention provides a battery switching procedure capable of interfacing with multiple types of battery packs of different sizes, by properly moving actuators with respect to the actuator frame to thereby engage the proper battery locks by the actuators.
  • a method for use in switching a battery pack at an underside of a vehicle comprises analyzing data indicative of a battery pack and a vehicle type, and generating output data indicative of a relative position of one or more actuators with respect to an actuator frame, thereby enabling using said output data for moving said one or more actuators over the actuator frame to bring said one or more actuators in alignment with a latch mechanism at the vehicle.
  • the battery switch module may comprise a control unit configured to detect a battery type and/or a vehicle type of an approaching electric vehicle so as to position the one or more actuators on the actuator frame in a reference position based on the detected battery and/or vehicle type.
  • the reference position may be defined so that the one or more actuators be aligned with corresponding latch mechanisms on the vehicle side when the vehicle is in a vehicle reference position with respect to the actuator frame.
  • Figs. 1A-1D illustrate generally a battery switch process according to an embodiment of the present disclosure.
  • Fig. 2 illustrates a side view of a system for battery switching according to an embodiment of the present disclosure.
  • Fig. 3 illustrates an upper view of a battery switching module (BSM) according to an embodiment of the present disclosure.
  • Fig. 4 illustrates a perspective view of an actuator of a battery switch module according to an embodiment of the present disclosure.
  • Fig. 5 illustrates a close-up view of a coupling between a battery switch module and a base plate of a system for battery switching according to an embodiment of the present disclosure.
  • Fig. 6 illustrates an under view of a system for switching battery according to an embodiment of the present disclosure.
  • Figs. 1A-1D generally illustrate a method for switching a battery pack 1 to and from a vehicle 2 for the purposes of replacing the battery by a new one.
  • the system may generally comprise an actuator frame 5 and one or more actuators 3 mounted on the actuator frame for movement over the actuator frame 5.
  • the vehicle 2 may generally comprise a battery bay (battery housing) at the underside of the vehicle for receiving a battery pack 1 via an opening in the bottom of the vehicle through which the battery can be accessed.
  • the battery pack can be locked in the battery bay using appropriate latch mechanisms, for example as described in US 8,006,793; US 7,993,155; US 2011- 0223459 all assigned to the assignee of the present application.
  • the actuators 3 may be configured to collaborate with the latch mechanism so as to be able to unlock the battery pack 1 when engaged into the latch mechanisms and actuated.
  • the arrangement may be for example as described in a co-pending patent application.
  • the method utilizes preliminary adapting the battery switching system 4 to the type of vehicle 2 and/or to the type of battery pack 1 embedded in the vehicle 2.
  • the system 4 may be configured to identify the vehicle and battery pack types when the vehicle 1 approaches the system 4.
  • the system 4 communicates with a controller/computer in the vehicle 4 and/or images the vehicle / battery pack, or images the vehicle and utilizes a database to identify the associated battery pack, so as to determine the vehicle and battery pack types.
  • a vehicle user or vehicle itself may carry a RFID tag and the vehicle and/or the user may be identified by the battery change station using said RFID tag.
  • the RFID tag may include information on the battery pack directly, or the battery change station may use the user and/or EV identification to consult a control center that has a database of information associating a specific user or EV to a specific battery pack type.
  • the step of adapting the system 4 may comprise displacing the actuators 3 on the actuator frame 5 in order to position the actuators 3 in an actuator reference position corresponding to the vehicle / battery pack type, so that the actuators 3 be aligned with the latch mechanisms on the vehicle side when the vehicle 2 is in a vehicle reference position facing the system 4 for switching the battery pack 1.
  • the method may comprise positioning the vehicle 2 in the vehicle reference position with respect to the system 4 so that the latch mechanisms and the actuators be at least sufficiently aligned. It should be understood that the first and second step may be interchanged or concurrently performed.
  • the method may comprise adjusting the position of the actuators 3 to correct a default in the positioning of the vehicle 4 (fine tuning step).
  • the method might further comprise allowing a horizontal floating movement of the actuator frame 5 with respect to a base plate 7 of the system 4 supporting the actuator frame 5.
  • the actuator frame 5 provides a movement capability to the actuators so that the actuators are capable to align with corresponding latch which are in the car.
  • the entire actuators' frame can further move horizontally in (or in parallel to) the X-Y plane, for some distance, in order to allow alignment of the whole BSM with the car.
  • final alignment between BSM and car will be based on mechanical penetration of alignment pin (located in the BSM) into a reference hole located in the car or in the battery.
  • the method may comprise lifting the actuator frame 5 to bring the actuators 3 into an engagement position for engagement with the latch mechanisms that lock the battery pack 1 in the vehicle.
  • the actuators 3 engagement position may be registered/kept using reference pins provided on the actuators 3 for engagement with reference holes provided on the battery pack 1.
  • the actuators may then be operated in order to unlock the battery pack 1 from the vehicle 4.
  • a fifth step represented on Fig. 1C the battery pack 1 is taken out of the vehicle 2 by lowering the actuator frame 5.
  • the latch mechanism When the latch mechanism is unlocked, the battery pack is released from the vehicle and may then be supported by the actuators 3. Therefore lowering the actuator frame 5 carries away the battery pack 1 as well.
  • Retracting the discharged battery pack under the vehicle 2 allows a battery transportation system to convey the discharged battery to storage where it can be cooled and charged.
  • Pads located on the actuators allow the support of the battery pack on the BSM. Since position of the actuators on the BSM is adjustable, the pads will move with the actuators in order to facilitate the interface with different types and shapes of batteries.
  • a fully or partially charged battery pack may be loaded in the vehicle as represented on Fig. ID.
  • the fully charged battery pack may be laid on the actuator on the pads which are part of the actuators of the system 4 for switching battery pack by a transportation system.
  • the actuator frame 5 may be allowed to float with respect to a base plate supporting the actuator frame 5 and reference pins may engage in battery or vehicle reference holes.
  • the actuator frame 5 may then be raised.
  • the battery pack may be aligned with the battery bay in the vehicle using alignment pins provided on the battery pack and associated holes in the vehicle body.
  • the actuators 3 may then be engaged with the latch mechanism located inside the vehicle's battery bay (onboard latch) and/or battery pack, and operated in order to lock the battery pack in the battery bay of the vehicle. Eventually, the actuator frame may be lowered.
  • Fig. 2 illustrates generally the system 4 of an embodiment of the invention for switching the battery pack 1.
  • the system may include the actuator frame 5 and the one or more actuators 3 previously discussed a lift mechanism 9 and a base plate 7.
  • the lift mechanism 9 may support the base plate 7 and may be configured to lift the base plate 7 so as to approach the base plate from an underside of vehicle (not shown).
  • vehicle may comprise a battery bay configured for receiving the battery pack 1.
  • the battery pack may be a fully or partially charged battery pack, and a discharged battery pack may preliminary be retrieved from the vehicle battery bay in order the battery bay to be ready to accept a fully/partially charged battery.
  • the lift mechanism 9 may be integral with the base plate 7 or releasably coupled with the base plate 7.
  • FIG. 3 is presented in the following with reference to Figs. 3 and 4 illustrating respectively an upper view of the actuator frame 5 and a close up view of the actuator 3 in some embodiments of the present disclosure.
  • the actuator frame 5 may be configured so that one or more actuators 3 may be received and displaced over a surface of the actuator frame 5.
  • the actuator frame 5 may generally have a planar extension and may extend substantially parallel to an extension plane i.e. a thickness of the actuator frame may be substantially smaller than a width and length of actuator frame 5.
  • the actuators 3 may be configured to be movable over an outside surface of extension of the actuator frame 5 i.e. on a surface parallel to the extension plane.
  • the actuator frame 5 may have any suitable shape, e.g. circular- or polygonal-like.
  • the actuator frame 5 may have a rectangular shape and four actuators may be provided on the actuator frame 5.
  • the actuator frame 5 may comprise one or more actuator carriages 53 capable of moving along at least two non parallel (intersecting) axes X, Y over the actuator frame 5.
  • the two axes X, Y may belong to a plane parallel to the plane of extension of the actuator frame 5 i.e. X, Y may be perpendicular to an axis normal to the actuator frame outside surface.
  • the actuator frame 5 may further comprise at least one transverse member 52 extending along the Y-axis (for example a width of the actuator frame 5), the transverse member 52 being slidably connected to the actuator frame 5 so as to be movable along the X-axis (for example a length of the actuator frame 5).
  • the transverse member 52 may be mounted on one or more rails 51 extending along the X-axis. Further, at least one actuator carriage 53 may be slidably connected to the transverse member 52 so as to be movable over the transverse member 53 along the Y-axis. For example, the actuator carriage 53 maybe mounted on one or more rail 54 extending across the transverse member 52. Thereby, the actuators 3 may be made movable over at least a section of the actuator frame 5 surface so as to scan different positions within said section. The motion of the actuators on top of the actuators' frame is to allow the actuator to be positioned in locations which are specific for a specific type of battery pack. The actuators can move in order to configure the BSM to serve many types of vehicles and batteries.
  • the one or more actuators 3 may each comprise a base 31 and a drive shaft 33 projecting out of the base 31.
  • the drive shaft 33 may be configured to engage with the socket of the latch mechanism on the vehicle side.
  • the one or more actuators 3 may also comprise an actuator motor configured to rotate the drive shaft upon engagement in the socket for actuating the latch mechanism.
  • the actuators 3 may further comprise a battery support pad 32 to hold the battery pack when a discharged battery pack is disconnected from the vehicle or when a charged battery pack is connected to the vehicle.
  • the actuator 3 may comprise a reference pin 36 for improving alignment of the entire actuator's frame with the battery pack 1.
  • the actuator frame 5 In order to define the location of the actuator frame 5 with respect to car on the X-Y plane, only two pins may be needed for example on two of the actuators 3. Indeed, a single pin would not compensate for any yaw so a second pin is needed to block rotational movement on the X-Y plane around the first pin. By this the actuator frame 5 may be located properly in X, Y and rotation about Z (yaw). It is to be noted that the reference pin 36 does not align the actuator to the car/battery, it aligns the actuator frame 5 with respect to the vehicle, based on the floating of the frame with respect to car. Indeed, the actuator carriages are blocked after the actuators 3 are moved to an appropriate position with regard to the type/size of battery to be serviced. However, each actuator may have some "free play" built into it in order to compensate for the car production tolerances (about +/-5mm).
  • the actuators 3 may further comprise a self aligning ball 34 at the end of the drive shaft 33 intended to be engaged in the latch mechanism.
  • the self aligning ball 34 may enable handling angular misalignments between the actuator 3 and the latch mechanism.
  • a plunger 35 may be provided at the end of the drive shaft 33 intended to be engaged in the latch mechanism.
  • the plunger 35 may be provided on the self aligning ball 34. The plunger 35 enables to detect proper engagement of the drive shaft 33 into the latch mechanism on the vehicle side. When the drive shaft 33 penetrates the socket in the latch mechanism on the car side, the plunger may be compressed and may thereby send an indication to the system 4 on whether the shaft is properly engaged into the socket.
  • the base plate 7 may be configured to support the actuator frame 5.
  • the base plate 7 may comprise a base plate coupling mechanism 75 collaborating with an actuator frame coupling mechanism 55 of the actuator frame 5.
  • the actuator frame and base plate coupling mechanism 55, 75 may be configured so as to allow the actuator frame 5 to float horizontally on the base plate 7.
  • the base plate 7 and the actuator frame 5 comprise corresponding coupling mechanisms 55, 75 configured so that the actuator frame 5 can slip horizontally on the base plate 7.
  • the floating capability of the actuator frame 5 may be used when the actuator frame 5 is lifted to engage the battery.
  • the self aligning ball 34 may align with a socket on the battery side and cause the whole actuator frame to slightly move on top of the base plate.
  • the corresponding coupling mechanisms 55, 75 may comprise a caster ball bearing to allow the actuator frame 5 to float horizontally on the base plate 7 with low friction.
  • the base plate 7 and the actuator frame 5 may respectively comprise a base plate traversing hole and an actuator frame traversing hole configured so as to form a hollow conduit when the actuator frame 5 and the base plate 7 are assembled together i.e. when the actuator frame 5 is supported by the base plate 7.
  • a rod assembly 76 may be fitted into the hollow conduit so as to limit the slipping motion of the actuator frame 5 with respect to the base plate 7.
  • the purpose of the rod assembly 76 may be to limit the horizontal floating of the actuator frame 5 with respect to the base plate 7 to a predetermined level. For example, by locating a 20 mm diameter rod (connected to the actuator frame 5) inside a 60 mm diameter hole (hollow conduit formed by respective corresponding traversing holes in the base plate 7 and actuator frame 5), the rod can travel with respect to the hole a distance of +/-20 mm.
  • an actuator assembly 77 may be configured to disable the floating capability when such floating is undesired, for example when the BSM is far from the vehicle.
  • the vehicle when positioned over the BSM is already located with quite good alignment relative to the BSM.
  • the vehicle position may be no more than +/-15 mm from perfect alignment with BSM.
  • the actuator frame In order to allow final alignment of the BSM with vehicle, the actuator frame may "float" about +/-20 mm. Then, by pushing the BSM alignment pins into car/battery reference holes, the BSM get its final alignment.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne un module de commutation d'accumulateur qui sert à commuter une batterie pouvant être fixée au dessous d'un véhicule par un ou plusieurs mécanismes de verrouillage. Le module de commutation d'accumulateur comprend une armature d'actionneur comportant un ou plusieurs actionneurs qui sont configurés et peuvent être exploités pour fonctionner avec le ou les mécanismes de verrouillage, le ou les actionneurs étant montés sur l'armature d'actionneur pour permettre un mouvement par rapport à l'armature.
PCT/IL2013/050275 2012-03-27 2013-03-20 Module de commutation d'accumulateur Ceased WO2013144955A2 (fr)

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JP2023522478A (ja) * 2020-05-15 2023-05-30 奥動新能源汽車科技有限公司 電池交換ステーションに用いられる電池交換方法
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JP7325574B2 (ja) 2017-04-01 2023-08-14 上海電巴新能源科技有限公司 バッテリー交換カート、バッテリー交換制御システムおよびその制御方法
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JP7281001B2 (ja) 2017-04-01 2023-05-24 上海電巴新能源科技有限公司 バッテリー交換カート、バッテリー交換制御システムおよびその制御方法
JP2022122895A (ja) * 2017-04-01 2022-08-23 上海電巴新能源科技有限公司 バッテリー交換カート、バッテリー交換制御システムおよびその制御方法
WO2019016081A1 (fr) * 2017-07-18 2019-01-24 Mahle International Gmbh Ensemble accumulateur
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