CN205573644U - Pure electric vehicles's power source system and pure electric vehicles - Google Patents

Pure electric vehicles's power source system and pure electric vehicles Download PDF

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Publication number
CN205573644U
CN205573644U CN201620195777.2U CN201620195777U CN205573644U CN 205573644 U CN205573644 U CN 205573644U CN 201620195777 U CN201620195777 U CN 201620195777U CN 205573644 U CN205573644 U CN 205573644U
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China
Prior art keywords
cells
battery
pure electric
controller
electric automobile
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Expired - Fee Related
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CN201620195777.2U
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Chinese (zh)
Inventor
程琰
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Borgward Automotive China Co Ltd
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Borgward Automotive China Co Ltd
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Priority to CN201620195777.2U priority Critical patent/CN205573644U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Secondary Cells (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

The utility model discloses a pure electric vehicles's power source system and pure electric vehicles. Wherein, this system includes: two at least group batteries, at least two control switch group is connected with at least two group battery electricity respectively for control two at least group battery the power output, it is wherein, parallelly connected between two at least group batteries, the controller is connected with at least two control switch group electricity for group battery according to arbitrary a set of in two at least control switch group or the correspondence of multiunit on -off control. The utility model provides an among the prior art, pure electric vehicles's battery comprises a plurality of battery monomers, the work of whole battery monomer is forbidden to the controller when resulting in indivedual battery monomers to break down to make the technical problem that electric automobile can't normally travel.

Description

The power source system of pure electric automobile and pure electric automobile
Technical field
This utility model relates to electric automobiles, in particular to the power source system of a kind of pure electric automobile and pure Electric automobile.
Background technology
In the prior art, the power source system of pure electric automobile generally uses multiple battery cell to constitute, but wherein one During individual or multiple battery cell generation catastrophe failure, it is complete that the controller of power source system is generally forbidden in power source system Portion's battery cell work, thus power vehicle loses power, it is impossible to continue to travel.
For the problems referred to above, the solution provided in prior art includes: pass through short by the battery cell broken down The mode on road isolates away reason, and other battery cells continue series connection and power for power source system, but the confession of power source system Piezoelectric voltage reduces, and impact drives the normal work of motor, due to pure electric automobile now auxiliary facility (such as: dimension Repair center, charging pile etc.) construction and imperfection, need travel longer distance could again fill for power source system Electricity, therefore carried out the power source system after short circuit processes and is difficult to make pure electric automobile continue to travel fail battery monomer Enough distances are until running into charging pile.
For in prior art, the battery of pure electric automobile is made up of multiple battery cells, causes Individual cells monomer to be sent out During raw fault, controller forbids that all batteries monomer works, so that the technical problem that electric automobile cannot normally travel. At present effective solution is not yet proposed.
Utility model content
This utility model embodiment provides power source system and the pure electric automobile of a kind of pure electric automobile, at least to solve Certainly in prior art, the battery of pure electric automobile is made up of multiple battery cells, causes Individual cells monomer to break down Time controller forbid that all batteries monomer works, so that the technical problem that electric automobile cannot normally travel.
An aspect according to this utility model embodiment, it is provided that the power source system of a kind of pure electric automobile, including: At least two set of cells;At least two controls switches set, electrically connects with at least two set of cells respectively, for controlling extremely Few two set of cells output electric energy, wherein, in parallel between at least two set of cells;Controller, with at least two control Switches set electrically connects, for the electricity corresponding according to one or more groups on-off control any at least two control switches set Pond group.
According to the another aspect of this utility model embodiment, additionally provide a kind of pure electric automobile, including above-mentioned any one The power source system of item pure electric automobile.
In this utility model embodiment, including at least two set of cells, electrically connect with at least two set of cells respectively At least two controls switches set, is used for controlling at least two set of cells output electric energy, wherein, at least two set of cells it Between in parallel, control, with at least two, the controller that switches set electrically connect, for according at least two control switches set The set of cells that arbitrarily one or more groups on-off control is corresponding.Such scheme is by the power source system of pure electric automobile At least two set of cells is set, it is achieved that the redundant power origin system of pure electric automobile, has reached when pure electric automobile When set of cells breaks down, pure electric automobile remains able to the technology effect using the set of cells not broken down to travel Really, solving in prior art, the battery of pure electric automobile is made up of multiple battery cells, causes Individual cells monomer When breaking down, controller forbids that all batteries monomer works, so that the technology that electric automobile cannot normally travel is asked Topic.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, Schematic description and description of the present utility model is used for explaining this utility model, is not intended that of the present utility model Improper restriction.In the accompanying drawings:
Fig. 1 is the structural representation of the power source system of a kind of pure electric automobile according to this utility model embodiment one; And
Fig. 2 is the power source system circuit signal of a kind of optional pure electric automobile according to this utility model embodiment one Figure.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, real below in conjunction with this utility model Execute the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that institute The embodiment described is only the embodiment of this utility model part rather than whole embodiments.Based on this practicality Embodiment in novel, those of ordinary skill in the art obtained under not making creative work premise all its His embodiment, all should belong to the scope of this utility model protection.
It should be noted that term " first " in specification and claims of the present utility model and above-mentioned accompanying drawing, " second " etc. are for distinguishing similar object, without being used for describing specific order or precedence.Should manage Solve the data so used can exchange in the appropriate case, in order to embodiment of the present utility model described herein can Implement with the order in addition to those here illustrating or describing.Additionally, term " includes " and " having " with And their any deformation, it is intended that covering non-exclusive comprising, such as, containing one is the system of unit, product Product or equipment are not necessarily limited to those unit clearly listed, but can include the most clearly listing or for these Product or intrinsic other unit of equipment.
Embodiment one
Fig. 1 is the structural representation of the power source system of a kind of pure electric automobile according to this utility model embodiment, as Shown in Fig. 1, this system includes:
At least two set of cells.
At least two controls switches set, electrically connects with at least two set of cells respectively, is used for controlling at least two set of cells Output electric energy, wherein, in parallel between at least two set of cells.
Herein need explanation time, in above-mentioned at least two set of cells, the electricity of any set of cells can be with existing skill In art, the electricity of the set of cells of pure electric automobile is suitable, i.e. the electricity of any one set of cells at least two set of cells Pure electric automobile can be made normally to travel.
Above-mentioned at least two is controlled switches set and is controlled the duty of set of cells by unlatching and Guan Bi, when controlling switch Control switch in group is when all closing, and set of cells corresponding to this control switches set can access power source system, for The driving motor of pure electric automobile is powered.
In a kind of optional embodiment, above-mentioned control switch is relay.
Controller, with at least two control switches set electrically connect, for according at least two control switches set in any The set of cells that one or more groups on-off control is corresponding.
In said system, controller controls switch open or Guan Bi by output control signal.
Fig. 2 is the power source system circuit signal of a kind of optional pure electric automobile according to this utility model embodiment one Figure, shown in Fig. 2, in a kind of optional embodiment, includes two with the power source system of above-mentioned pure electric automobile As a example by individual set of cells, two set of cells access power source system in parallel, and each set of cells positive pole and Negative pole is respectively connected to a gate-controlled switch, gate-controlled switch and battery management controller BMS (Battery Management System, battery management system) it is connected, i.e. controller can control the duty of switch.Controlling switch can be Relay, is made up of coil and inductive switch, and the two ends of coil are connected with battery management controller, work as battery management Controller coil when coil output predetermined current produces induction electromotive force, so that inductive switch Guan Bi, at battery In the case of the positive switch of group and negative switch all close, set of cells access power source system starts as driving motor to power; When any one set of cells in two set of cells breaks down, the set of cells that controller controls to break down is corresponding Control switches set to disconnect, i.e. the battery controlling to break down is stopped power supply, and another set of cells not broken down depends on So can provide electric energy for power source system, and owing to two set of cells are for being connected in parallel, then appointing in power source system A set of cells job of anticipating can provide enough voltage and electric energy for pure electric automobile.
In the case of any one set of cells in set of cells breaks down, battery management controller passes through open failure Switches set corresponding to set of cells reaches the purpose of open failure set of cells, in a kind of optional embodiment, combines and schemes Shown in 2, what first battery management controller disconnected is the switch being connected with battery anode, i.e. switch 1 and switch 3, Then the switch being connected with battery electrode in disconnection, i.e. switch 2 and switch 4, to ensure car load safety.
Also need to explanation is herein, and any one set of cells of above-mentioned at least two set of cells is demountable structure, works as electricity When pond group needs charging, set of cells to be replaced can be separated power source system, and select same set of cells to carry out Replace, to reduce the charging interval long impact that pure electric automobile is used process.
In an alternative embodiment, still combine shown in Fig. 2, when set of cells to start power supply for driving motor Time, first controller controls to be connected to the control switch Guan Bi of the negative pole of set of cells, will be connected to the positive pole of set of cells Control switch Guan Bi, when any set of cells break down need disconnect time, controller control be connected to battery anode Control switch off, control to be connected to the control of battery electrode the most again and switch off, any battery can be realized Group breaks down and pure electric automobile still is able to normally travel until the position such as maintenance center or destination.
From the foregoing, it will be observed that the application said system includes at least two set of cells, electrically connect with at least two set of cells respectively At least two control switches set, be used for controlling at least two set of cells output electric energy, wherein, at least two set of cells Between in parallel, control, with at least two, the controller that switches set electrically connect, for according at least two control switches set Set of cells corresponding to one or more groups on-off control any.Such scheme is by the power source system at pure electric automobile In at least two set of cells is set, it is achieved that the redundant power origin system of pure electric automobile, reached to work as pure electric automobile Set of cells when breaking down, pure electric automobile still can cross the technology using the set of cells not broken down to travel Effect, solves in prior art, and the battery of pure electric automobile is made up of multiple battery cells, causes Individual cells list When body breaks down, controller forbids that all batteries monomer works, so that the technology that electric automobile cannot normally travel Problem.
Optionally, according to said system of the present utility model, controller is battery management controller, wherein, cell tube Reason controller is additionally operable to obtain the battery parameter of at least two set of cells.
Concrete, above-mentioned battery management controller can be BMS.
Optionally, according to said system of the present utility model, said system also includes:
Electric machine controller, controls switches set by least two and electrically connects with at least two set of cells, for by least two The DC conversion that individual set of cells provides is alternating current.
Herein it should be noted that set of cells is unidirectional current for the electric energy that power source provides, but the driving of pure electric automobile Galvanic electricity machine uses alternating current, it is therefore desirable to the unidirectional current that set of cells provides is converted to drive motor by electric machine controller The alternating current used.
Herein also, it should be noted in actual applications, electric machine controller is additionally operable to gather the operation ginseng driving motor Number, such as, drive the rotating speed etc. of motor, with the entire car controller of transmission to pure electric automobile, so that entire car controller pair The car load transport condition of pure electric automobile judges.
From the foregoing, it will be observed that above-described embodiment that this utility model provides includes electric machine controller, control to open by least two Pass group electrically connects with at least two set of cells, is alternating current for DC conversion at least two set of cells provided, Achieve the technique effect that the unidirectional current of set of cells is converted to drives the alternating current of motor use, thus reached to pass through At least two set of cells is the technical purpose driving motor to power.
Optionally, according to said system of the present utility model, said system also includes:
Drive motor, electrically connect with electric machine controller, for using the alternating current operating obtaining electric machine controller output.
From the foregoing, it will be observed that this utility model provides the driving motor electrically connected with electric machine controller, it is used for using acquisition motor The alternating current operating of controller output, it is achieved that be the technique effect driving motor to power by least two set of cells, And then reached pure electric automobile by driving the technical purpose driving traveling of motor.
Optionally, according to said system of the present utility model, said system also includes:
Fault cues device, electrically connects with battery management controller, for monitoring any one when battery management controller When individual or multiple set of cells break down, send fault cues signal.
Shown in Fig. 2, in a kind of optional embodiment, above-mentioned failure alarm signal can be the signal of telecommunication, sound letter Number and/or picture signal, when battery management controller detects that at least two set of cells breaks down, pure electric automobile Send fault cues signal in time, so that user of service knows the state that above-mentioned pure electric automobile is current.Such as, when appointing A set of cells of anticipating breaks down, another set of cells be powered, and fault cues device sends default prompt tone.
From the foregoing, it will be observed that the fault cues device that this utility model above-described embodiment provides electrically connects with battery management controller, For when battery management controller monitor any one or more set of cells break down time, send fault cues signal, Reach the technique effect making the user of pure electric vehicle know vehicle travel situations in time.
Optionally, according to said system of the present utility model, said system also includes:
Instrument, by CAN and battery management controller communication, for showing the battery ginseng of at least two set of cells Number.
In said system, instrument and battery management controller carry out communication, owing to battery management controller is except controlling control Beyond the disconnection of system switch and Guan Bi, being additionally operable to gather the battery parameter of any one set of cells, therefore instrument can be led to Cross battery management controller and get the battery parameter of set of cells.
In a kind of optional embodiment, when the set of cells in power source system the most normally works, instrument obtains every The dump energy of individual set of cells, and the milimeter number that can travel that dump energy is corresponding, to remind human pilot in advance Arrange to travel distance, if need the matters such as charging.
In an alternative embodiment, when in power source system, any one set of cells breaks down, instrument shows Show while display power source system includes the signal of fail battery group, the residue electricity of the set of cells of the normal work of display Amount and exercisable milimeter number corresponding to dump energy.
From the foregoing, it will be observed that the instrument that this utility model above-described embodiment provides is led to battery management controller by CAN News, for showing the battery parameter of at least two set of cells.Such scheme is by the power source system at pure electric automobile Middle addition shows instrument, so that the human pilot of pure electric automobile can be any one from the power source system that instrument shows The state of individual battery, reaches the prompting purpose to human pilot.
Optionally, according to said system of the present utility model, said system also includes:
Entire car controller, by CAN and battery management controller communication, obtains the battery of at least two set of cells Parameter.
In said system, the battery parameter of the set of cells that entire car controller acquires for basis is to pure electric automobile It is that transport condition judges.
In the power source system of the pure electric automobile of this utility model above-described embodiment offer, battery parameter includes: surplus The fault letter of any one or more set of cells in remaining electricity, cell voltage, battery current and/or at least two set of cells Breath.
In the power source system of the pure electric automobile of this utility model above-described embodiment offer, at least two set of cells Any one set of cells be made up of many battery cells.
In the power source system of the pure electric automobile of the above embodiments of the present application offer, the electricity of at least two set of cells Identical.
From the foregoing, it will be observed that the electricity of at least two set of cells of this utility model above-described embodiment offer is identical, it is achieved that every Individual set of cells can be exchanged, and uses the technical purpose of same battery replacement fail battery.
Embodiment two
According to this utility model embodiment, it is provided that a kind of pure electric automobile, above-mentioned pure electric automobile includes above-mentioned enforcement The power source system of any one pure electric automobile that example is a kind of.
In a kind of optional embodiment, the power source system of above-mentioned pure electric automobile includes the battery that two electricity are identical Group, the control switches set controlling set of cells and the battery management controller of control switches set.
Fig. 2 in the power source system of the pure electric automobile provided in corresponding embodiment one, as in figure 2 it is shown, in one In optional embodiment, include as a example by two set of cells by the power source system of above-mentioned pure electric automobile, two set of cells Access power source system in parallel, and be respectively connected to a gate-controlled switch at the most very much negative pole of each set of cells, Gate-controlled switch is connected with controller, i.e. controller can control the duty of switch.When appointing in two set of cells Meaning set of cells is when breaking down, and the control switches set that controller controls the set of cells that breaks down corresponding disconnects, i.e. control The battery that system breaks down is stopped power supply, and another set of cells not broken down still can provide for power source system Electric energy, and owing to two set of cells are for being connected in parallel, then the work of any one set of cells in power source system can Enough voltage and electric energy is provided for pure electric automobile.
It should be noted that, any one set of cells of above-mentioned at least two set of cells is demountable structure, works as battery herein When group needs charging, set of cells to be replaced can be separated power source system, and select same set of cells to replace Change, to reduce the charging interval long impact that pure electric automobile is used process.
In an alternative embodiment, still combine shown in Fig. 2, when set of cells to start power supply for driving motor Time, first controller controls to be connected to the control switch Guan Bi of the negative pole of set of cells, will be connected to the positive pole of set of cells Control switch Guan Bi, when any set of cells break down need disconnect time, controller control be connected to battery anode Control switch off, control to be connected to the control of battery electrode the most again and switch off, any battery can be realized Group breaks down and pure electric automobile still is able to normally travel until the position such as maintenance center or destination.
From the foregoing, it will be observed that the power source system of the pure electric automobile of the above embodiments of the present application offer includes at least two battery Group, at least two electrically connected with at least two set of cells respectively controls switches set, is used for controlling at least two set of cells Output electric energy, wherein, in parallel between at least two set of cells, control, with at least two, the controller that switches set electrically connects, For the set of cells corresponding according to one or more groups on-off control any at least two control switches set.Such scheme By arranging at least two set of cells in the power source system of pure electric automobile, it is achieved that the redundancy of pure electric automobile is moved Power origin system, has reached when the set of cells of pure electric automobile breaks down, and pure electric automobile still can be crossed use and not send out The technique effect that the set of cells of raw fault travels, solves in prior art, and the battery of pure electric automobile is by multiple Battery cell forms, and when causing Individual cells monomer to break down, controller forbids that all batteries monomer works, so that Obtain the technical problem that electric automobile cannot normally travel.
Above-mentioned this utility model embodiment sequence number, just to describing, does not represent the quality of embodiment.
In above-described embodiment of the present utility model, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment There is no the part described in detail, may refer to the associated description of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents, can be passed through other Mode realize.Wherein, device embodiment described above is only schematically, the division of the most described unit, Can be that a kind of logic function divides, actual can have other dividing mode, the most multiple unit or assembly when realizing Can in conjunction with or be desirably integrated into another system, or some features can be ignored, or does not performs.Another point, institute The coupling each other shown or discuss or direct-coupling or communication connection can be by some interfaces, unit or mould The INDIRECT COUPLING of block or communication connection, can be being electrical or other form.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications, these Improvements and modifications also should be regarded as protection domain of the present utility model.

Claims (11)

1. the power source system of a pure electric automobile, it is characterised in that including:
At least two set of cells;
At least two controls switches set, electrically connects with at least two set of cells respectively, be used for controlling described at least two Individual set of cells output electric energy, wherein, in parallel between described at least two set of cells;
Controller, controls switches set with described at least two and electrically connects, for controlling to open according to described at least two The set of cells that one or more groups on-off control any of Guan Zuzhong is corresponding.
System the most according to claim 1, it is characterised in that described controller is battery management controller, wherein, Described battery management controller is additionally operable to obtain the battery parameter of described at least two set of cells.
System the most according to claim 2, it is characterised in that described system also includes:
Electric machine controller, controls switches set by described at least two and electrically connects with described at least two set of cells, DC conversion for described at least two set of cells being provided is alternating current.
System the most according to claim 3, it is characterised in that described system also includes:
Drive motor, electrically connect with described electric machine controller, obtain the output of described electric machine controller for using Alternating current operates.
System the most as claimed in any of claims 2 to 4, it is characterised in that described system also includes:
Fault cues device, electrically connects with described battery management controller, for when described battery management controller Monitor any one or more set of cells when breaking down, send fault cues signal.
System the most as claimed in any of claims 2 to 4, it is characterised in that described system also includes:
Instrument, by CAN and described battery management controller communication, is used for showing described at least two electricity The battery parameter of pond group.
System the most as claimed in any of claims 2 to 4, it is characterised in that described system also includes:
Entire car controller, by CAN and described battery management controller communication, obtains described at least two The battery parameter of set of cells.
System the most according to claim 2, it is characterised in that described battery parameter includes: dump energy, battery The fault message of any one or more set of cells in voltage, battery current and/or described at least two set of cells.
System the most according to claim 1, it is characterised in that any one electricity in described at least two set of cells Pond group is made up of one or more battery cells.
System the most according to claim 1, it is characterised in that the electricity of described at least two set of cells is identical.
11. 1 kinds of pure electric automobiles, it is characterised in that include the dynamic of any one pure electric automobile in claim 1 to 10 Power origin system.
CN201620195777.2U 2016-03-14 2016-03-14 Pure electric vehicles's power source system and pure electric vehicles Expired - Fee Related CN205573644U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108001259A (en) * 2017-11-02 2018-05-08 合肥国轩高科动力能源有限公司 Fault detection method for double-power system of electric automobile
CN108177656A (en) * 2017-12-20 2018-06-19 中车青岛四方机车车辆股份有限公司 Train traction method and device
CN108569142A (en) * 2017-03-10 2018-09-25 法拉第未来公司 System and method for from the integrated redundancy busbar framework to electric system
CN112714979A (en) * 2018-09-21 2021-04-27 罗伯特·博世有限公司 Method for separating batteries

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108569142A (en) * 2017-03-10 2018-09-25 法拉第未来公司 System and method for from the integrated redundancy busbar framework to electric system
CN108569142B (en) * 2017-03-10 2022-04-15 法拉第未来公司 System and method for integrating redundant bus architecture into power system
CN108001259A (en) * 2017-11-02 2018-05-08 合肥国轩高科动力能源有限公司 Fault detection method for double-power system of electric automobile
CN108177656A (en) * 2017-12-20 2018-06-19 中车青岛四方机车车辆股份有限公司 Train traction method and device
CN112714979A (en) * 2018-09-21 2021-04-27 罗伯特·博世有限公司 Method for separating batteries
CN112714979B (en) * 2018-09-21 2024-04-26 罗伯特·博世有限公司 Method for separating cells

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Denomination of utility model: Power source system of pure electric vehicle and pure electric vehicle

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Granted publication date: 20160914

Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd.

Pledgor: Borgward Automotive (China) Co., Ltd.

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Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd.

Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd.

Registration number: Y2021990001167

PC01 Cancellation of the registration of the contract for pledge of patent right