CN207916598U

CN207916598U - A kind of automobile and automobile are to automobile charging system actual

Info

Publication number: CN207916598U
Application number: CN201721540494.8U
Authority: CN
Inventors: 杨建崇; 刘立业; 王广举; 施绍有; 高林; 李春媛
Original assignee: Beiqi (zhenjiang) Automobile Co Ltd
Current assignee: BAIC Blue Valley Magna Automobile Co., Ltd
Priority date: 2017-11-16
Filing date: 2017-11-16
Publication date: 2018-09-28
Anticipated expiration: 2027-11-16

Abstract

The utility model provides a kind of automobile and automobile to automobile charging system actual, which includes：First battery pack；First fast charge mouth socket, including：First charge power supply interface, the first ground interface and the first connecting detection interface, the first ground interface is with picking up body；Electric machine controller is connect by a first switch circuit with the first battery pack or the first charge power supply interface；Generator is connect with the engine of automobile, and is connect with electric machine controller by harness；First vehicle control device, including：Drive module P, voltage detection module, CAN communication module and central processing module；Voltage detection module is connect with the first connecting detection interface, and the first connecting detection interface connects predeterminated voltage by one first pull-up resistor.By the control of the open and-shut mode to first switch circuit, the charging to automobile by external dc charging pile can either be realized, meanwhile, it can also realize and be charged to the second automobile by automobile itself.

Description

A kind of automobile and automobile are to automobile charging system actual

Technical field

The utility model is related to automobile charging fields, and especially a kind of automobile and automobile are to automobile charging system actual.

Background technology

Hybrid vehicle refers to that vehicle drive system is combined by two or more single drive systems that can be operated simultaneously The road horsepower of the vehicle of composition, vehicle is separately or cooperatively provided according to actual vehicle running state by single drive system. Due to having the advantages that energy saving, low emission, hybrid vehicle degree of having been a great concern.

Hybrid vehicle in the prior art is typically only capable to obtain electricity from outside, and can not pass the electricity of its own Other automobiles are defeated by, namely cannot achieve and charged to other automobiles by automobile itself.

Utility model content

The utility model embodiment technical problems to be solved are to provide a kind of automobile and automobile to automobile charging system actual, use It is charged to electric vehicle by hybrid vehicle with realizing.

In order to solve the above technical problems, the automobile that the utility model embodiment provides, including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface, the first ground interface and the first connecting detection interface, First ground interface is with picking up body；

Electric machine controller is connected by a first switch circuit and first battery pack or the first charge power supply interface It connects；

Generator is connect with the engine of automobile, and is connect with the electric machine controller by harness；

First vehicle control device, including：Drive module, voltage detection module, CAN communication module and central processing module, The drive module, the voltage detection module and the CAN communication module are connect with the central processing module respectively；

The voltage detection module is connect with the first connecting detection interface, and the first connecting detection interface passes through one First pull-up resistor connects predeterminated voltage；

The CAN communication module is connect with the electric machine controller, and adjusting control output is sent to the electric machine controller The control signal of parameter；

The drive module is connect with the control terminal of the first switch circuit；

The central processing module determines the side to be charged of automobile according to the voltage value that the voltage detection module detects Formula, and according to the mode to be charged for the automobile determined by the drive module to the first switch circuit send disconnect or The control signal of closure；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and automobile itself is carried out When charging, the central processing module controls the first switch circuit by first charge power supply by the drive module Interface is connect with first battery pack；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to the second automobile into When row charging, the central processing module controls the first switch circuit by the electric machine controller by the drive module It is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface.

Preferably, the first fast charge mouth socket further includes：

First low pressure auxiliary power interface；

The automobile further includes：

Low tension battery described in low tension battery passes through a second switch circuit and the first low pressure auxiliary power interface Connection, the control terminal of the second switch circuit are connect with the drive module.

Preferably, the first fast charge mouth socket further includes：First CAN communication interface, passes through CAN buses and the CAN Communication module connects.

Preferably, the first fast charge mouth socket further includes：Second connecting detection interface is grounded by a second resistance.

Preferably, the first switch circuit includes：

First switch sub-circuit is connect with the electric machine controller and first battery pack respectively；

Second switch sub-circuit is connect with the electric machine controller and the first charge power supply interface respectively, and described The control terminal of first switch sub-circuit and the control terminal of the second switch sub-circuit are connect with the drive module.

Another utility model according to the present utility model, the utility model embodiment additionally provide a kind of automobile, including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface, the first ground interface and the first connecting detection interface, The first charge power supply interface is connect by a first switch circuit with first battery pack, and first ground interface connects Vehicle body；

Electric machine controller is connected by a second switch circuit and first battery pack or the first charge power supply interface It connects；

The drive module is connect with the control terminal of the control terminal of the first switch circuit and the second switch circuit；

The central processing module determines the side to be charged of automobile according to the voltage value that the voltage detection module detects Formula, and according to the mode to be charged for the automobile determined by the drive module to the first switch circuit and described second Switching circuit sends the control signal being opened or closed；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and automobile itself is carried out When charging, the central processing module controls the first switch circuit by the drive module and is in closed state, by institute The first charge power supply interface is stated to connect with first battery pack；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to the second automobile into When row charging, the central processing module controls the first switch circuit by the drive module and is off, will The first charge power supply interface is disconnected with first battery pack；And it controls the second switch circuit and controls the motor Device is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface.

Preferably, the second switch circuit includes：

Include the contact-making switch of two-way contact, the control terminal of the contact-making switch is connect with the drive module, described The first end of contact-making switch is connect with the electric machine controller；

First contact of the second end of the contact-making switch is connected to first battery pack, and the second of the contact-making switch Second contact at end and the first charge power supply orifice.

Another utility model according to the present utility model, the utility model embodiment provide a kind of automobile and charge to automobile System, including：First automobile and vehicle-to-vehicle charging connection wire；

First automobile includes：

First battery pack；

Generator is connect with the engine of the first automobile, and is connect with the electric machine controller by harness；

The vehicle-to-vehicle charging connection wire includes：First charging gun, the second charging gun, and it is set to first charging Connection wiring harness between rifle and second charging gun；First charging gun includes：Second charge power supply interface, third connection Detect interface and the second ground interface；Second charging gun includes：Third charge power supply interface, the 4th connecting detection interface and Third ground interface；

The first end of the second charge power supply interface is connect with the first charge power supply interface, and second end passes through harness It is connect with the third charge power supply interface；The first end of second ground interface is connect with first ground interface, the Two ends are connect by harness with the third ground interface；The first end of the third connecting detection interface is connect with described first Interface connection is detected, second end is connect by a connection detection circuit with the 4th connecting detection interface；

Wherein, the second automobile is connected to by the vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and right When second automobile is charged, the central processing module controls the first switch circuit by the drive module will be described Electric machine controller is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface.

Preferably, the connection detection circuit includes：

Sequentially connected 3rd resistor, first switch and the second switch, the 3rd resistor and the third connecting detection Interface connects, and the second switch is connected with the 4th connecting detection interface.

Preferably, second charging gun further includes：5th connecting detection interface, the 5th connecting detection interface pass through One the 4th resistance eutral grounding.

Preferably, first charging gun further includes：Second CAN communication interface；Second charging gun further includes：Third CAN communication interface, the third CAN communication interface are connect with the second CAN communication interface, and second CAN communication connects Mouth is connect with the first CAN communication interface of the first automobile.

Preferably, first charging gun further includes：Second low pressure auxiliary power interface；Second charging gun also wraps It includes：Third low pressure auxiliary power interface, the third low pressure auxiliary power interface connect with the second low pressure auxiliary power interface It connects, and the second low pressure auxiliary power interface is connect with the first low pressure auxiliary power interface of the first automobile.

According to another utility model of the utility model embodiment, the utility model embodiment additionally provides a kind of automobile pair Automobile charging system actual, including：First automobile and vehicle-to-vehicle charging connection wire；

First automobile includes：

First battery pack；

Wherein, the second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to second When automobile is charged, the central processing module controls the first switch circuit by the drive module and is in disconnection shape State disconnects the first charge power supply interface and first battery pack；And the second switch circuit is controlled by the electricity Machine controller is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface.

Compared with prior art, the automobile and vehicle that the utility model embodiment provides at least have automobile charging system actual Following advantageous effect：

By the control to first switch circuit or second switch circuit open and-shut mode, it can either realize and pass through external dc Charging of the charging pile to automobile itself, meanwhile, it can also realize and be charged to the second automobile by automobile itself.Meanwhile passing through The circuit structure of automotive interior is improved, realizing fast charge on the basis of keeping original fast charge interface function of automobile connects Mouth realizes the multiplexing of interface, has saved vehicle manufacture cost to the charge function of exterior vehicle output.

Description of the drawings

Fig. 1 is the structural representation that the automobile described in the utility model embodiment coordinates automobile charging system actual and the second automobile One of figure；

Fig. 2 is the structural representation that the automobile described in the utility model embodiment coordinates automobile charging system actual and the second automobile The two of figure；

Fig. 3 is the structural representation that the automobile described in the utility model embodiment coordinates automobile charging system actual and the second automobile The three of figure.

Specific implementation mode

In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing And specific embodiment is described in detail.In the following description, such as specific configure with the specific detail of component only is provided Only to assist in comprehensive understanding the embodiments of the present invention.It therefore, it will be apparent to those skilled in the art that can be to here The embodiment of description makes various changes and modifications without departing from the scope of the utility model and spirit.In addition, in order to clear and Succinctly, the description to known function and construction is omitted.

In conjunction with Fig. 1, the utility model first embodiment provides a kind of automobile, including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface DC1, the first ground interface GND1 and the first connection inspection Interface CC1 is surveyed, the first ground interface GND1 is with picking up body；

Electric machine controller is connect by a first switch circuit 1 with the first battery pack or the first charge power supply interface DC1；

Generator is connect with the engine of automobile, and is connect with electric machine controller by harness；

First vehicle control device, including：Drive module, voltage detection module, CAN communication module and central processing module, Drive module, voltage detection module and CAN communication module are connect with drive module respectively；

Voltage detection module is connect with the first connecting detection interface CC1, and the first connecting detection interface CC1 is by one first Pull-up resistor R1 connects predeterminated voltage；

CAN communication module is connect with electric machine controller, and the control letter of adjusting control output parameter is sent to electric machine controller Number；

Drive module is connect with the control terminal of first switch circuit 1；

Central processing module determines the mode to be charged of automobile according to the voltage value that voltage detection module detects, and according to The mode to be charged for the automobile determined sends the control signal being opened or closed by drive module to first switch circuit 1；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and charged to automobile itself When, central processing module controls first switch circuit 1 by the first charge power supply interface DC1 and the first battery pack by drive module Connection；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and the second automobile is filled When electric, central processing module controls first switch circuit 1 by drive module and connect electric machine controller with the first battery pack, and Electric machine controller and the first charge power supply interface DC1 are disconnected.

The first above-mentioned connecting detection interface CC1 is by the voltage value of the predeterminated voltage of one first pull-up resistor R1 connections 12V。

In conjunction with Fig. 1, in the utility model first embodiment, the first charge power supply interface DC1 includes：First charge power supply Anode interface DC1+ and the first charge power supply cathode interface DC1-.

Generator carries out driving power generation by the engine of automobile, and the electric energy sent out is passed to electric machine controller and is carried out It is exported after conversion.

When being connected to direct-current charging post by charging gun in the first fast charge mouth socket, and charging to automobile itself, in It entreats processing module to control first switch circuit 1 by drive module and is in closed state, by the first charge power supply interface DC1 and the One battery pack connects, meanwhile, it controls electric machine controller and engine is in off position, charged normal to realize. One fast charge mouth socket is connected to the second automobile by vehicle-to-vehicle charging connection wire, when charging to the second automobile, central processing Electric machine controller is connect by module by drive module by controlling first switch circuit 1 with the first charge power supply interface DC1, and The connection for disconnecting electric machine controller and the first battery pack, to realize the charging of the second automobile of automobile pair.

The first vehicle control device in the utility model first embodiment be generally automobile BMS (battery management system) or HCU (hybrid power full-vehicle control unit) can also realize the function of control by existing other control modules.

Above-mentioned central processing module judges charging modes, and root by the voltage value that voltage detection module detects 1 open and-shut mode of first switch circuit is controlled by drive module according to charging modes；When the second automobile of automobile pair fills When electric, central processing module carries out information exchange by CAN communication module and the second automobile, and the demand for obtaining the second automobile is filled Electrical parameter, central processing module send instruction control charging output parameter and the by CAN communication module to electric machine controller again The charge requirement match parameters of two automobiles, to realize the charging to the second automobile.

The first charge power supply interface DC1 in the utility model first embodiment, external dc charging pile can pass through it Electric energy is transmitted to the first battery pack, meanwhile, generator also can by its by charge transport give the second automobile, that is, this first Charge power supply interface DC1 can realize two functions of charging and discharging, realize the multiplexing to the interface.

By the automobile of the utility model first embodiment, by the control of the open and-shut mode to first switch circuit 1, both Can realize the charging to automobile by external dc charging pile, meanwhile, can also realize by automobile itself to the second automobile into Row charging.When the remaining capacity of the second vehicle distances can not support the second vehicle to travel to nearest charging station, Ke Yitong The second automobile of automobile pair in the utility model first embodiment is crossed to charge.It can more endanger to avoid in Environmental securities such as fields Danger in emergency circumstances, ensure vehicle can normally travel to safety zone, ensure vehicle and occupant safety.

Further, in the utility model first embodiment, referring to Fig.1 with Fig. 2, the first fast charge mouth socket further includes：

First low pressure auxiliary power interface A1；

Automobile further includes：

Low tension battery is connect with central processing module,

Wherein, low tension battery is connect by a second switch circuit 2 with the first low pressure auxiliary power interface A1, and second opens The control terminal on powered-down road 2 is connect with drive module.

The first low pressure auxiliary power interface A1 in the utility model first embodiment, including the first low pressure accessory power supply Anode interface A1+ and the first low pressure accessory power supply cathode interface A1-, wherein central processing module and the first low pressure accessory power supply Anode interface A1+ connections.When automobile is connect by charging gun with direct-current charging post, low tension battery passes through positive accessory power supply Harness provides low-tension supply to central processing module and is worked with waking up central processing module.Pass through vehicle-to-vehicle charging in automobile When connecting line is connect with the second automobile, due to the closure of second switch circuit 2 so that the low tension battery of automobile and the second automobile The second vehicle control device between form access, low tension battery provides power supply to the second vehicle control device of the second automobile, calls out The second vehicle control device work of awake second automobile.

In conjunction with Fig. 1, the first low pressure auxiliary power interface A1 includes：First low pressure accessory power supply anode interface A1+ and first Low pressure accessory power supply cathode interface A1-, correspondingly, second switch circuit 2 also include respectively with the first low pressure accessory power supply just Pole interface A1+ and the corresponding switches of the first low pressure accessory power supply cathode interface A1-, also, opening in second switch circuit 2 herein Close is low-voltage relay or other electronic switching devices.

Further, in the utility model first embodiment, referring to Fig.1 with Fig. 2, the first fast charge mouth socket further includes： First CAN communication interface S1, is connect by CAN bus with CAN communication module.

In conjunction with Fig. 1 and Fig. 2, the first CAN communication interface S1 and above-mentioned first in the utility model first embodiment Charge power supply interface DC1 and the first low pressure auxiliary power interface A1 are identical, all have the first CAN being connect with CAN communication module Communicate anode interface S1+ and the first CAN communication cathode interface S1-.

The setting of first CAN communication interface S1 is to realize the first fast charge mouth socket and electric machine controller or the second vapour Second vehicle control device of vehicle is communicated.

Further, in the utility model first embodiment, referring to Fig.1 with Fig. 2, the first fast charge mouth socket further includes： Second connecting detection interface CC2 passes through a second resistance R2 ground connection.

Herein, the setting of the second connecting detection interface CC2, be in order to when being connect with direct-current charging post by charging gun, Direct-current charging post judges to fill by the voltage at the port that connect with the second connecting detection interface CC2 on the charging gun that detects Whether normally connected between electric rifle and direct-current charging post.

Further, in the utility model first embodiment, with reference to Fig. 3, first switch circuit 1 includes：

First switch sub-circuit is connect with electric machine controller and the first battery pack respectively；

Second switch sub-circuit is connect with electric machine controller and the first charge power supply interface DC1 respectively, and first switch The control terminal of circuit and the control terminal of second switch sub-circuit are connect with drive module.

Herein, first switch sub-circuit and second switch sub-circuit are mutually independent switching group, are passing through generator pair It when automobile itself is charged, needs to disconnect second switch sub-circuit, and first switch sub-circuit is closed.Passing through direct current When charging pile charges to automobile itself, need first switch sub-circuit and second switch sub-circuit being closed at so that Access can be formed between first charge power supply interface DC1 and the first battery pack, to realize the first battery pack of direct-current charging post pair Charging；When charging by the second automobile of vehicle-to-vehicle charging connection wire pair, then need to disconnect first switch sub-circuit, And be closed second switch sub-circuit, to ensure when charging to the second automobile, the electric energy that generator generates will not transmit To the first battery pack.

First switch sub-circuit and second switch sub-circuit include two contactors, one of them is connected to and motor control On the cathode harness of device connection processed, another is connected on the anode wiring harness being connect with electric machine controller.

In the utility model first embodiment, first switch sub-circuit and second switch sub-circuit can also use electronics Switching device is realized.

The automobile of the utility model first embodiment is improved by the circuit structure to automotive interior, is keeping vapour The function for the charging that the output of fast charge interface exports exterior vehicle is realized on the basis of original fast charge interface function of vehicle is constant, Vehicle manufacture cost has been saved in the multiplexing for realizing interface.

With reference to Fig. 2, another utility model according to the present utility model, the utility model second embodiment additionally provides one kind Automobile, including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface DC1, the first ground interface GND1 and the first connection inspection It surveys interface CC1, the first charge power supply interface DC1 to connect with the first battery pack by a first switch circuit 1, the first ground interface GND1 is with picking up body；

Electric machine controller is connect by a second switch circuit 2 with the first battery pack or the first charge power supply interface DC1；

First vehicle control device, including：Drive module, voltage detection module, CAN communication module and central processing module, Drive module, voltage detection module and CAN communication module are connect with central processing module respectively；

Drive module is connect with the control terminal of the control terminal of first switch circuit 1 and second switch circuit 2；

Central processing module determines the mode to be charged of automobile according to the voltage value that voltage detection module detects, and according to The mode to be charged for the automobile determined sent to first switch circuit 1 and second switch circuit 2 by drive module disconnect or The control signal of closure；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and charged to automobile itself When, central processing module controls first switch circuit 1 by drive module and is in closed state, by the first charge power supply interface DC1 is connect with the first battery pack；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and the second automobile is filled When electric, central processing module controls first switch circuit 1 by drive module and is off, by the first charge power supply interface DC1 and the first battery pack disconnect；And control second switch circuit 2 and disconnect electric machine controller and the first battery pack, and by motor Controller is connect with the first charge power supply interface DC1.

In the utility model second embodiment, the first battery pack, generator, the first vehicle control device and vehicle-to-vehicle charging connect The dependency structures such as wiring are identical with the component defined in the automobile in above-mentioned first embodiment, not with first embodiment It is only that with place, two groups of switching circuits is provided in the utility model second embodiment, so that the first charge power supply connects The first charge power supply in circuit connecting mode and first embodiment between mouth DC1, the first battery pack and electric machine controller connects The circuit connecting mode of mouth DC1, the first battery pack and electric machine controller differ.

When being charged to automobile itself by direct-current charging post, first switch circuit 1 is in closed state, and for Second switch circuit 2 is not controlled.Due to being connected to direct-current charging post by charging gun in the first fast charge mouth socket, and it is right When automobile itself is charged, it need not be charged to automobile itself by generator, central processing module will not be to starting Machine is controlled, that is, generator is closed.At this point, no matter second switch circuit 2 is electric by electric machine controller and first Chi Bao connections, or electric machine controller is connect with the first charge power supply interface DC1, or electric machine controller and the first battery pack are broken It opens, or electric machine controller and the first charge power supply interface DC1 is disconnected；Generator will not all charge to the first battery pack or first Power interface DC1 is powered.

It is being connected to the second automobile by vehicle-to-vehicle charging connection wire, when charging to the second automobile, first switch electricity Road 1 is off, and avoids engine and the electric energy of generation is transferred to the first battery pack, cause the charging to the second automobile Interference.

In the utility model second embodiment, with reference to Fig. 2, second switch circuit 2 includes：

When being connected to direct-current charging post by charging gun in the first fast charge mouth socket, and charging to automobile itself, in Centre processing module controls first switch sub-circuit by drive module and second switch sub-circuit is in closed state；First Fast charge mouth socket is connected to the second automobile by vehicle-to-vehicle charging connection wire, when charging to the second automobile, central processing mould Block controls first switch sub-circuit by drive module and is off, and control second switch sub-circuit is in closed state. It is controlled by the open and-shut mode to first switch sub-circuit and second switch sub-circuit, different charge requirements can be met.

In the utility model second embodiment, contactor may be used in first switch sub-circuit and second switch sub-circuit Or other electronic switching devices are realized.

In the utility model second embodiment, with reference to Fig. 3, second switch circuit 2 can also use another setting side Formula, including：

Include the contact-making switch of two-way contact, the control terminal of contact-making switch is connect with drive module, and the of contact-making switch One end is connect with electric machine controller；

First contact of the second end of contact-making switch is connected to the first battery pack, the second contact of the second end of contact-making switch It is connected to the first charge power supply interface DC1.

When being connected to direct-current charging post by charging gun in the first fast charge mouth socket, and charging to automobile itself, connect Access is formed between the first contact and the first end of contact-making switch of the second end of tactile switch；Pass through vehicle in the first fast charge mouth socket Second automobile is connected to vehicle charging connection wire, when charging to the second automobile, the second contact of the second end of contact-making switch Access is formed between the first end of contact-making switch.

By the setting form of contact-making switch, reduce the setting of parts so that circuit structure is simpler.

The automobile that the utility model second embodiment provides, improves the circuit structure of automobile, by first The control of the open and-shut mode of switching circuit 1 and second switch circuit 2, can realize direct-current charging post to the charging of automobile itself with And it is charged by the second automobile of generator pair of automobile.

Referring to Fig.1, another utility model according to the present utility model, the utility model 3rd embodiment provide a kind of vapour Vehicle to automobile charging system actual, including：First automobile and vehicle-to-vehicle charging connection wire；

First automobile includes：

First battery pack；

Generator is connect with the engine of the first automobile, and is connect with electric machine controller by harness；

CAN communication module is connect with electric machine controller, and the control signal that adjusting control exports is sent to electric machine controller；

Drive module is connect with the control terminal of first switch circuit 1；

Vehicle-to-vehicle charging connection wire includes：First charging gun, the second charging gun, and it is set to the first charging gun and second Connection wiring harness head between charging gun；First charging gun includes：Second charge power supply interface DC2, third connecting detection interface CC3 With the second ground interface GND2；Second charging gun includes：Third charge power supply interface DC3, the 4th connecting detection interface CC4 and Three ground interface GND3；

The first end of second charge power supply interface DC2 is connect with the first charge power supply interface DC1, second end by harness with Third charge power supply interface DC3 connections；The first end of second ground interface GND2 is connect with the first ground interface GND1, second end It is connect with third ground interface GND3 by harness；The first end of third connecting detection interface CC3 and the first connecting detection interface CC1 connections, second end are connect by a connection detection circuit with the 4th connecting detection interface CC4；

Wherein, the second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, to the second automobile into When row charging, central processing module controls first switch circuit 1 by drive module and electric machine controller and the first battery pack breaks It opens, and electric machine controller is connect with the first charge power supply interface DC1.

The automobile provided by the utility model 3rd embodiment to automobile charging system actual, can realize to the second automobile into Row charging.Vehicle-to-vehicle charging connection wire in the utility model 3rd embodiment, be as first the second automobile of automobile pair into A kind of charging connection wire of private type of row special charging.When itself charging to the first automobile, by existing general Logical charging gun, for charging gun in the prior art, herein without description.The automobile of the utility model 3rd embodiment It to automobile charging system actual, is connect with the second automobile by the second charging gun of vehicle-to-vehicle charging connection wire, wherein second automobile Can be the structure consistent with the structure of the first automobile；At the same time it can also being existing traditional electric vehicle.

In conjunction with Fig. 1, when second automobile is the structure consistent with the structure of the first automobile, which includes： Second battery pack；

Second fast charge mouth socket, including：4th charge power supply interface DC4, the 4th ground interface GND4, the 6th connecting detection Interface CC6, the 7th connecting detection interface CC7, the 4th CAN communication interface S4 and the 4th low pressure auxiliary power interface A4, the 4th The first end of charge power supply interface DC4 is connect with third charge power supply interface DC3, second end by a third switching circuit 3 with Second battery pack connects；One end of 4th ground interface GND4 is connect with third ground interface GND3, also, the 4th ground interface The other end of GND4 is with picking up body；6th connecting detection interface CC6 is connect with the 4th connecting detection interface CC4, also, the Six connecting detection interface CC6 pass through one the 5th resistance R5 ground connection；

Second vehicle control device, including：First drive module, first voltage detection module, the first CAN communication modules and First central processing module, first voltage detection module and the first CAN communication module are connect with the first central processing module respectively；

First drive module is connect with third switching circuit 3, first voltage detection module and the 7th connecting detection interface CC7 connections, and the 7th connecting detection interface CC7 passes through one the 6th pull-up resistor R6 connection predeterminated voltages.

In order to coordinate the first charge power supply interface DC1 of above-mentioned first automobile and the 4th charge power supply interface of the second automobile The anode interface and cathode interface of DC4, the second charge power supply interface DC2 in the utility model 3rd embodiment include：The Two charge power supply anode interface DC2+ and the second charge power supply cathode interface DC2-, third charge power supply interface DC3 includes third Charge power supply anode interface DC3+ and third charge power supply cathode interface DC3-.

After first automobile is connect with the first charging gun of the vehicle-to-vehicle charging connection wire in the utility model 3rd embodiment, The voltage value that the voltage value that voltage detection module detects detects after being connect with charging gun in the prior art with the first automobile It differing, the voltage value that central processing module is detected according to voltage detection module judges the mode to be charged of automobile, namely It is itself to carry out charging or charging to the second automobile by the first automobile of direct-current charging post pair.

The automobile provided by the utility model 3rd embodiment can realize the first automobile pair to automobile charging system actual Two automobiles charge.Can be used for when the second automobile no remaining capacity and apart from charging station farther out when urgent charging.

Further, in the utility model 3rd embodiment, referring to Fig.1, connection detection circuit includes：

Sequentially connected 3rd resistor R3, first switch S11 and second switch S12,3rd resistor R3 connect inspection with third Survey interface CC3 connections, second switch S12 and the 4th connecting detection interface CC4 connections.

First switch S11 and second switch S12 is respectively the normally closed switch inside the first charging gun and the second charging gun, when When being in half-connection between the first charging gun and the first fast charge mouth socket of the first automobile, first switch S11 is in open state, When the first fast charge mouth socket of the first charging gun and the first automobile, which is in, is fully connected state, first switch S11, which is in, to be closed State.

In the same manner, when being in semi-connection state between the first fast charge mouth socket of the second charging gun and the second automobile, the Two switch S12 are in open state；When the second charging gun and the second automobile, which are in, is fully connected state, at second switch S12 In closed state.

The central processing module of first automobile judges that automobile waits filling according to the voltage value that voltage detection module detects After electric mode is the mode to charge to the second automobile, and judge that charging gun docks success with the first automobile and the second automobile Afterwards, information exchange is carried out by CAN communication module analog DC charging pile and the second automobile, and then control electric machine controller to send out The second automobile of power supply pair that the electric energy that motor is sent out is converted into the second automobile demand charges.

Further, in the utility model 3rd embodiment, referring to Fig.1, the second charging gun further includes：5th connection inspection It surveys interface CC5, the 5th connecting detection interface CC5 and passes through one the 4th resistance R4 ground connection.

When the second charging gun is connect with the first fast charge mouth socket of the second automobile, the 5th connecting detection interface CC5 and Seven connecting detection interface CC7 are connected, and the second automobile can be by the voltage at the 7th ends connecting detection interface CC7 of detection, in turn Judge whether there is charging gun to be inserted into the first fast charge mouth socket, and whether has been fully connected.

Further, in the utility model 3rd embodiment, referring to Fig.1, the first charging gun further includes：2nd CAN is logical Believe that interface S2, the second charging gun further include：Third CAN communication interface S3, third CAN communication interface S3 connect with the second CAN communication Mouth S2 connections, and the second CAN communication interface S2 is connect with the first CAN communication interface S1 of the first automobile.

In conjunction with Fig. 1, the second CAN communication interface S2 in the utility model 3rd embodiment includes：Second CAN communication is just Pole interface S2+ and the second CAN communication cathode interface S2-, third CAN communication interface S3 include：Third CAN communication anode interface S2+ and third CAN communication cathode interface S3-, the 4th CAN communication interface S4 include：4th CAN communication anode interface S4+ and Four CAN communication cathode interface S4-.

When the second charging gun is connect with the first fast charge mouth socket of the second automobile, third CAN communication interface S3 and the 4th The S4 connections of CAN communication interface.First vehicle control device of the first automobile is realized and second by above-mentioned multiple CAN communication interfaces The CAN communication of second vehicle control device of automobile.

Further, in the utility model 3rd embodiment, referring to Fig.1, the first charging gun further includes：Second low pressure is auxiliary The power interface A2, the second charging gun is helped to further include：Third low pressure auxiliary power interface A3, third low pressure auxiliary power interface A3's First end is connect with the second low pressure auxiliary power interface A2, and second end is connected by harness and the 4th low pressure auxiliary power interface A4 It connects, and the second low pressure auxiliary power interface (A2) is connect with the first low pressure auxiliary power interface (A1) of the first automobile.

In conjunction with Fig. 1, the second low pressure auxiliary power interface A2 includes：Second low pressure accessory power supply anode interface A2+ and second Low pressure accessory power supply cathode interface A2-, third low pressure auxiliary power interface A3 include：Third low pressure accessory power supply anode interface A3 + and third low pressure accessory power supply cathode interface A3-, the 4th low pressure auxiliary power interface A4 include：4th low pressure accessory power supply is just Pole interface A4+ and the 4th low pressure accessory power supply cathode interface A4-.

In the utility model 3rd embodiment, the first low pressure auxiliary power interface A1, the second low pressure auxiliary power interface A2, third low pressure auxiliary power interface A3, the 4th low pressure auxiliary power interface A4 are for passing the low-tension supply of low tension battery It is defeated by the second vehicle control device of the second automobile, when charging to the second automobile, passes through the low pressure of low tension battery offer Power supply wakes up the second vehicle control device, provides low-tension supply for it or wakes up second vehicle control as charging wake-up signal Device.

In the utility model 3rd embodiment, the first pull-up resistor R1, second resistance R2, the 4th resistance R4, the 5th electricity The voltage value of resistance R5 and the 6th pull-up resistor R6 is 1K Ω, and the resistance value of 3rd resistor R3 can be designed as its in addition to 1K Ω His resistance value.

In the following, the voltage value detected for the voltage detection module of the first automobile is explained, it is assumed that in this thing In example, the resistance value of 3rd resistor R3 is 2K Ω, in conjunction with Fig. 1, when voltage detection module is detected by test point 1 (ports CC1) Voltage value be 6v when, that is, show that the first automobile is connect by charging gun with direct-current charging post, need to passing through direct-current charging post It charges to the first automobile；When voltage detection module is 12V by the voltage value that test point 1 (ports CC1) detects, then Show the first automobile do not connect with charging gun or pass through vehicle-to-vehicle charging connection wire the first charging gun and the first automobile between Not docking completely；When the voltage value that voltage detection module is detected by test point 1 (ports CC1) is 9V, that is, show the One automobile is fully connected by vehicle-to-vehicle charging connection wire and the second automobile, can determine whether to need first the second automobile of automobile pair at this time It charges.Since under different connection status, the voltage value that voltage detection module detects differs, and central processing module can With the different voltages value judgement detected according to voltage detection module gone back by the first automobile of direct-current charging post pair itself charging It is to charge to the second external automobile.

It should be noted that the utility model 3rd embodiment automobile to automobile charging system actual in about the first automobile Description limit content, the automobile that should be also applied in above-mentioned first embodiment, meanwhile, in above-mentioned automobile first embodiment Description limit content can equally be well applied to the automobile in the utility model 3rd embodiment to automobile charging system actual.

The utility model 3rd embodiment automobile to automobile charging system actual, the first automobile has fast charge mouth socket and is Hybrid vehicle, the second automobile can be the pure electric automobile for having fast charge mouth socket, or have fast charge mouth socket Hybrid vehicle.

The automobile of the utility model 3rd embodiment provides the progress of first the second automobile of automobile pair to automobile charging system actual When charging, the realization circuit theory between the first automobile, vehicle-to-vehicle charging connection wire and the second charging gun, by the first automobile Original fast charge mouth socket can be realized itself to be charged by the first automobile of direct-current charging post pair, simultaneously, moreover it is possible to realize One the second automobile of automobile pair charges, and has saved exploitation and the manufacturing cost of automobile.

With reference to Fig. 2 and Fig. 3, a kind of automobile is to automobile charging system actual, which is characterized in that including：First automobile and vehicle-to-vehicle Charging connection wire；

First automobile includes：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface DC1, the first ground interface GND1 and the first connection inspection It surveys interface CC1, the first charge power supply interface DC1 to connect with the first battery pack by a second switch circuit 2, the first ground interface GND1 is with picking up body；

Vehicle-to-vehicle charging connection wire includes：First charging gun, the second charging gun, and it is set to the first charging gun and second Connection wiring harness between charging gun；First charging gun includes：Second charge power supply interface DC2, third connecting detection interface CC3 and Second ground interface GND2；Second charging gun includes：Third charge power supply interface DC3, the 4th connecting detection interface CC4 and third Ground interface GND3；

Wherein, the second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to the second automobile When being charged, central processing module controls first switch circuit 1 by drive module and is off, by the first charging electricity Source interface DC1 and the first battery pack disconnect；And control second switch circuit 2 and disconnect electric machine controller and the first battery pack, and Electric machine controller is connect with the first charge power supply interface DC1.

The automobile of the utility model fourth embodiment fills automobile charging system actual by the second of vehicle-to-vehicle charging connection wire Electric rifle is connect with the second automobile, wherein second automobile can be the structure consistent with the structure of the first automobile；Meanwhile also It can be existing traditional electric vehicle.

With reference to Fig. 2 and Fig. 3, when second automobile is the structure consistent with the structure of the first automobile, second automobile Including：Second battery pack；

Second fast charge mouth socket, including：4th charge power supply interface DC4, the 4th ground interface GND4, the 6th connecting detection Interface CC6, the 7th connecting detection interface CC7, the 4th CAN communication interface S4 and the 4th low pressure auxiliary power interface A4, the 4th The first end of charge power supply interface DC4 is connect with third charge power supply interface DC3, second end by one the 4th switching circuit 4 with Second battery pack connects；One end of 4th ground interface GND4 is connect with third ground interface GND3, also, the 4th ground interface The other end of GND4 is with picking up body；6th connecting detection interface CC6 is connect with the 4th connecting detection interface CC4, also, the Six connecting detection interface CC6 pass through one the 5th resistance R5 ground connection；

First drive module is connect with the 4th switching circuit 4, first voltage detection module and the 7th connecting detection interface CC7 connections, and the 7th connecting detection interface CC7 passes through one the 6th pull-up resistor R6 connection predeterminated voltages.

In the utility model fourth embodiment, the first battery pack, generator, the first vehicle control device and vehicle-to-vehicle charging connect The dependency structures such as wiring are identical to the component defined in automobile charging system actual with the automobile in above-mentioned 3rd embodiment, with Difference lies in the utility model fourth embodiment, be provided with two groups of switching circuits, to the second vapour to above-mentioned 3rd embodiment When vehicle is charged, first switch circuit 1 is off, and second switch circuit 2 is electric by electric machine controller and the first charging Source interface DC1 connections, and electric machine controller and the first battery pack are disconnected, to realize the charging to the second automobile.

In utility model fourth embodiment, the concrete structure of first switch circuit 1 and second switch circuit 2 and above-mentioned the First switch circuit 1 in two embodiments is identical with the restriction in second switch circuit 2, here, without repeating.

Another utility model according to the present utility model, the 5th embodiment of the utility model provide a kind of automobile controlling party Method, the automobile being applied in above-mentioned first embodiment, including：

Step 11, the voltage value that voltage detection module detects is obtained；

Step 12, the mode to be charged of automobile is determined according to voltage value, and according to the mode to be charged for the automobile determined First switch circuit 1 is controlled.

Preferably, step 12 includes：

Step 121, when voltage value is first voltage, determine that the mode to be charged of automobile is the first charging modes, control First switch circuit 1 is in closed state, and the first charge power supply interface DC1 is connect with the first battery pack；

Step 122, when voltage value is second voltage, determine that the mode to be charged of automobile is the second charging modes, control First switch circuit 1 disconnects electric machine controller and the first battery pack, and by electric machine controller and the first charge power supply interface DC1 Connection.

In the 5th embodiment of the utility model, the first charging modes are：By the first charge power supply interface DC1 to vapour The mode that vehicle itself charges, the second charging modes are：It is filled by DC1 pairs of the second automobile of the first charge power supply interface The mode of electricity.

In the 5th embodiment of the utility model, first voltage is other numerical value in addition to 6V, specifically by be arranged the The resistance value of three resistance R3 determines.The voltage value of second voltage is 6V.

Also, in the 5th embodiment of the utility model, when voltage value is first voltage, automobile is to automobile charging system actual control Method processed further includes：

Step 13, control second switch circuit 2 is in closed state, and low tension battery and the first low pressure accessory power supply are connect Mouth A1 connections.

It is controlled by the open and-shut mode to first switch circuit 1, can realize that direct-current charging post passes through the first charging Power interface DC1 charges to automobile itself and generator is carried out by DC1 pairs of the second automobile of the first charge power supply interface Charging realizes the interface duplex to the first charge power supply interface DC1, reduces automobile improving cost.

Another utility model according to the present utility model, the utility model sixth embodiment provide a kind of automobile controlling party Method, the automobile being applied in above-mentioned second embodiment, including：

Step 21, the voltage value that voltage detection module detects is obtained；

Step 22, the mode to be charged of automobile is determined according to voltage value, and according to the mode to be charged for the automobile determined First switch circuit 1 and second switch circuit 2 are controlled.

In the utility model sixth embodiment, step 22 includes：

Step 221, when voltage value is first voltage, determine that the mode to be charged of automobile is the first charging modes, control First switch circuit 1 is in closed state, to which the first charge power supply interface DC1 to be connect with the first battery pack；

Step 222, when voltage value is second voltage, determine that the mode to be charged of automobile is the second charging modes, control First switch circuit 1 is off, to disconnect the first charge power supply interface DC1 and the first battery pack；Control second Switching circuit 2 disconnects electric machine controller and the first battery pack, and electric machine controller and the first charge power supply interface DC1 are connected It connects.

In the utility model sixth embodiment, the first charging modes are：By the first charge power supply interface DC1 to vapour The mode that vehicle itself charges, the second charging modes are：It is filled by DC1 pairs of the second automobile of the first charge power supply interface The mode of electricity.

In the utility model sixth embodiment, first voltage is other numerical value in addition to 6V, specifically by be arranged the The resistance value of three resistance R3 determines.The voltage value of second voltage is 6V.

Also, in the utility model sixth embodiment, when voltage value is first voltage, automobile is to automobile charging system actual control Method processed further includes：

Step 23, control third switching circuit 3 is in closed state, and low tension battery and the first low pressure accessory power supply are connect Mouth A1 connections.

It is controlled by the open and-shut mode to first switch circuit 1 and second switch circuit 2, can realize DC charging Stake is charged to automobile itself by the first charge power supply interface DC1 and generator passes through the first charge power supply interface DC1 It charges to the second automobile, realizes the interface duplex to the first charge power supply interface DC1, reduce automobile improving cost.

It is preferred embodiments of the present invention above, it is noted that for those skilled in the art For, without departing from the principle of this utility model, several improvements and modifications can also be made, these improvements and modifications It should be regarded as the scope of protection of the utility model.

Claims

1. a kind of automobile, which is characterized in that including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface (DC1), the first ground interface (GND1) and the first connection inspection Interface (CC1) is surveyed, first ground interface (GND1) is with picking up body；

Electric machine controller passes through a first switch circuit (1) and first battery pack or the first charge power supply interface (DC1) it connects；

First vehicle control device, including：Drive module, voltage detection module, CAN communication module and central processing module, it is described Drive module, the voltage detection module and the CAN communication module are connect with the central processing module respectively；

The voltage detection module is connect with the first connecting detection interface (CC1), the first connecting detection interface (CC1) Predeterminated voltage is connect by one first pull-up resistor (R1)；

The CAN communication module is connect with the electric machine controller, and adjusting control output parameter is sent to the electric machine controller Control signal；

The drive module is connect with the control terminal of the first switch circuit (1)；

The central processing module determines the mode to be charged of automobile according to the voltage value that the voltage detection module detects, and It is sent to the first switch circuit (1) by the drive module according to the mode to be charged for the automobile determined and disconnects or close The control signal of conjunction；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and charged to automobile itself When, the central processing module controls the first switch circuit (1) by first charge power supply by the drive module Interface (DC1) is connect with first battery pack；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and the second automobile is filled When electric, the central processing module controls the first switch circuit (1) by the electric machine controller by the drive module It is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface (DC1).

2. automobile according to claim 1, which is characterized in that the first fast charge mouth socket further includes：

First low pressure auxiliary power interface (A1)；

The automobile further includes：

Low tension battery, the low tension battery pass through a second switch circuit (2) and the first low pressure auxiliary power interface (A1) it connects, the control terminal of the second switch circuit (2) is connect with the drive module.

3. automobile according to claim 1, which is characterized in that the first fast charge mouth socket further includes：First CAN communication Interface (S1) is connect by CAN bus with the CAN communication module.

4. automobile according to claim 1, which is characterized in that the first fast charge mouth socket further includes：Second connection inspection Interface (CC2) is surveyed, is grounded by a second resistance (R2).

5. automobile according to claim 1, which is characterized in that the first switch circuit (1) includes：

Second switch sub-circuit is connect with the electric machine controller and the first charge power supply interface (DC1) respectively, and described The control terminal of first switch sub-circuit and the control terminal of the second switch sub-circuit are connect with the drive module.

6. a kind of automobile, which is characterized in that including：

First battery pack；

First fast charge mouth socket, including：First charge power supply interface (DC1), the first ground interface (GND1) and the first connection inspection Interface (CC1) is surveyed, the first charge power supply interface (DC1) is connected by a first switch circuit (1) and first battery pack It connects, first ground interface (GND1) is with picking up body；

Electric machine controller passes through a second switch circuit (2) and first battery pack or the first charge power supply interface (DC1) it connects；

The drive module connects with the control terminal of the first switch circuit (1) and the control terminal of the second switch circuit (2) It connects；

The central processing module determines the mode to be charged of automobile according to the voltage value that the voltage detection module detects, and It is opened to the first switch circuit (1) and described second by the drive module according to the mode to be charged for the automobile determined Powered-down road (2) sends the control signal being opened or closed；

Wherein, direct-current charging post is connected to by charging gun in the first fast charge mouth socket, and charged to automobile itself When, the central processing module controls the first switch circuit (1) by the drive module and is in closed state, will be described First charge power supply interface (DC1) is connect with first battery pack；

The second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and the second automobile is filled When electric, the central processing module controls the first switch circuit (1) by the drive module and is off, by institute The first charge power supply interface (DC1) is stated to disconnect with first battery pack；And the second switch circuit (2) is controlled by the electricity Machine controller is disconnected with first battery pack, and the electric machine controller is connect with the first charge power supply interface (DC1).

7. automobile according to claim 6, which is characterized in that the second switch circuit (2) includes：

8. automobile according to claim 7, which is characterized in that the second switch circuit (2) includes：

Include the contact-making switch of two-way contact, the control terminal of the contact-making switch is connect with the drive module, the contact The first end of switch is connect with the electric machine controller；

First contact of the second end of the contact-making switch is connected to first battery pack, the second end of the contact-making switch Second contact is connected to the first charge power supply interface (DC1).

9. a kind of automobile is to automobile charging system actual, which is characterized in that including：First automobile and vehicle-to-vehicle charging connection wire；

First automobile includes：

First battery pack；

The vehicle-to-vehicle charging connection wire includes：First charging gun, the second charging gun, and be set to first charging gun and Connection wiring harness between second charging gun；First charging gun includes：Second charge power supply interface (DC2), third connect Connect detection interface (CC3) and the second ground interface (GND2)；Second charging gun includes：Third charge power supply interface (DC3), 4th connecting detection interface (CC4) and third ground interface (GND3)；

The first end of the second charge power supply interface (DC2) is connect with the first charge power supply interface (DC1), and second end is logical Harness is crossed to connect with the third charge power supply interface (DC3)；The first end of second ground interface (GND2) and described the One ground interface (GND1) connects, and second end is connect by harness with the third ground interface (GND3)；The third connection The first end of detection interface (CC3) is connect with the first connecting detection interface (CC1), and second end passes through a connection detection circuit It is connect with the 4th connecting detection interface (CC4)；

Wherein, the second automobile is connected to by the vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to second When automobile is charged, the central processing module controls the first switch circuit (1) by the drive module will be described Electric machine controller and first battery pack disconnect, and by the electric machine controller and the first charge power supply interface (DC1) Connection.

10. automobile according to claim 9 is to automobile charging system actual, which is characterized in that the connection detection circuit includes：

Sequentially connected 3rd resistor (R3), first switch (S11) and second switch (S12), the 3rd resistor (R3) and institute State third connecting detection interface (CC3) connection, the second switch (S12) and the 4th connecting detection interface (CC4) connection.

11. automobile according to claim 10 is to automobile charging system actual, which is characterized in that second charging gun also wraps It includes：5th connecting detection interface (CC5), the 5th connecting detection interface (CC5) are grounded by one the 4th resistance (R4).

12. automobile according to claim 9 is to automobile charging system actual, which is characterized in that first charging gun further includes： Second CAN communication interface (S2)；Second charging gun further includes：Third CAN communication interface (S3), the third CAN communication Interface (S3) is connect with the second CAN communication interface (S2), and the of the second CAN communication interface (S2) and the first automobile One CAN communication interface (S1) connects.

13. automobile according to claim 9 is to automobile charging system actual, which is characterized in that first charging gun further includes： Second low pressure auxiliary power interface (A2)；Second charging gun further includes：Third low pressure auxiliary power interface (A3), described Three low pressure auxiliary power interfaces (A3) are connect with the second low pressure auxiliary power interface (A2), and second low pressure auxiliary electricity Source interface (A2) is connect with the first low pressure auxiliary power interface (A1) of the first automobile.

14. a kind of automobile is to automobile charging system actual, which is characterized in that including：First automobile and vehicle-to-vehicle charging connection wire；

First automobile includes：

First battery pack；

Wherein, the second automobile is connected to by vehicle-to-vehicle charging connection wire in the first fast charge mouth socket, and to the second automobile When being charged, the central processing module controls the first switch circuit (1) by the drive module and is in disconnection shape State disconnects the first charge power supply interface (DC1) and first battery pack；And control the second switch circuit (2) The electric machine controller and first battery pack are disconnected, and by the electric machine controller and the first charge power supply interface (DC1) it connects.