CN213472814U

CN213472814U - V2V control guide circuit and electric vehicle

Info

Publication number: CN213472814U
Application number: CN202021976837.7U
Authority: CN
Inventors: 赵颖; 石雷; 陈明文
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-18
Anticipated expiration: 2030-09-10

Abstract

The utility model discloses a V2V control guide circuit, electric vehicle. The guiding circuit is applied to a charging and discharging connection device comprising a first plug and a second plug which are connected, and is used for guiding charging and discharging connection between a discharging vehicle and a charging vehicle in the process that the discharging vehicle charges the charging vehicle, so that the charging and discharging connection state of the plug on the discharging vehicle side is identified on the discharging vehicle side, and whether the plug on the charging vehicle side is connected to the charging vehicle or not is identified on the charging vehicle side; identifying the charging and discharging connection state of the first plug and the second plug on the discharging or charging vehicle side; the charging and discharging connection state of the plug on the charging vehicle side is recognized on the charging vehicle side, and whether or not the plug on the discharging vehicle side is connected to the discharging vehicle is recognized on the discharging vehicle side. The guide circuit can guide the charging and discharging connection so as to realize the identification of various charging and discharging connection states and is beneficial to ensuring the reliability of charging and discharging.

Description

V2V control guide circuit and electric vehicle

Technical Field

The utility model relates to the technical field of vehicles, especially, relate to a V2V control guide circuit and electric vehicle.

Background

In the related art, when the charging vehicle is charged by the discharging vehicle, the control guidance of the two electric vehicles is directly provided by the respective emergency charging devices. However, the control guidance may cause the sampling judgment of the off-board charger to be affected when the discharging vehicle is connected to the off-board charger, and further may cause the vehicle to be unable to charge.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this reason, an object of the utility model is to propose a V2V control guide circuit to realize guiding the charge-discharge connection between the vehicle that discharges and the vehicle that charges at the vehicle that discharges to the vehicle that charges, and effectively discern multiple charge-discharge connection state at the vehicle side that discharges and/or the vehicle side that discharges.

A second object of the present invention is to provide an electric vehicle.

A third object of the present invention is to provide another electric vehicle.

To achieve the above object, the present invention provides, in a first aspect, a V2V control pilot circuit, including: a first resistor, one end of which is connected to a ground terminal of a first plug in the charge and discharge connection device; a second resistor having one end connected to the other end of the first resistor and the other end connected to a first connection confirmation terminal of the first plug; a first switch connected in parallel with the second resistor; a third resistor having one end connected to a body ground of a first charge-discharge vehicle and the other end connected to a first connection confirmation terminal of the first charge-discharge vehicle; one end of the fourth resistor is connected to a first preset power supply; a first controllable switch, one end of which is connected to the other end of the fourth resistor, the other end of which is connected to a first connection confirmation terminal of the first charge-discharge vehicle, a control end of which is connected to a vehicle control device of the first charge-discharge vehicle, and the first connection confirmation terminal of the first charge-discharge vehicle being a first detection point of the first charge-discharge vehicle; a fifth resistor, one end of which is connected to a ground terminal of a second plug in the charge and discharge connection device, and the other end of which is connected to a second connection confirmation terminal of the second plug; a sixth resistor, one end of which is connected to a second connection confirmation terminal of a second charge and discharge vehicle, the other end of which is connected to a second preset power supply, the second connection confirmation terminal of the second charge and discharge vehicle serving as a second detection point of the second charge and discharge vehicle; a seventh resistor, one end of which is connected to the ground terminal of the first plug, and the other end of which is connected to the second connection confirmation terminal of the first plug; an eighth resistor, one end of which is connected to a second connection confirmation terminal of the first charge-discharge vehicle, the other end of which is connected to a third preset power supply, the second connection confirmation terminal of the first charge-discharge vehicle serving as a second detection point of the first charge-discharge vehicle; a ninth resistor, one end of which is connected to a ground terminal of the second plug in the charge and discharge connection device; a tenth resistor, one end of which is connected to the other end of the ninth resistor, the other end of which is connected to the first connection confirmation terminal of the second plug; a second switch connected in parallel with the tenth resistor; an eleventh resistor having one end connected to a body ground of a second charge and discharge vehicle and the other end connected to a first connection confirmation terminal of the second charge and discharge vehicle; one end of the twelfth resistor is connected to a fourth preset power supply; and one end of the second controllable switch is connected with the other end of the twelfth resistor, the other end of the second controllable switch is connected to a first connection confirmation terminal of the second charge and discharge vehicle, a control end of the second controllable switch is connected to a vehicle control device of the second charge and discharge vehicle, and the first connection confirmation terminal of the second charge and discharge vehicle is used as a first detection point of the second charge and discharge vehicle.

The utility model discloses a V2V control guide circuit can guide the in-process that two charge-discharge vehicles charge to the charge-discharge connection between the vehicle that discharges and the vehicle that charges to can effectively discern multiple charge-discharge connection state in first charge-discharge vehicle side and/or first charge-discharge vehicle side, be favorable to guaranteeing the security and the reliability of charge-discharge.

In order to achieve the above object, a second aspect of the present invention provides an electric vehicle, including the above V2V control guidance circuit.

In order to achieve the above object, a third aspect of the present invention provides another electric vehicle, including a socket, where the socket is adapted to a first plug or a second plug of a charging and discharging connection device, so that when the socket is connected to the first plug or the second plug, the electric vehicle establishes a charging and discharging connection relationship with other electric vehicles through a charging and discharging connection guiding function of the V2V control guiding circuit.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a topology diagram of a V2V control steering circuit according to an embodiment of the present invention;

fig. 2 is a topology diagram of a V2V control steering circuit according to another embodiment of the present invention;

fig. 3 is a block diagram of an electric vehicle according to an embodiment of the present invention;

fig. 4 is a block diagram of an electric vehicle according to another embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

The following describes a V2V control guidance circuit, a charge/discharge connection device, and an electric vehicle according to an embodiment of the present invention with reference to fig. 1 to 4.

Fig. 1 is a schematic diagram of a V2V control pilot circuit according to an embodiment of the present invention.

As shown in fig. 1, the V2V control steering circuit 10 includes: the circuit comprises a first resistor R1 ', a second resistor R2', a first switch S ', a third resistor R4', a fourth resistor R6 ', a first controllable switch K7', a fifth resistor R3, a sixth resistor R5, a seventh resistor R3 ', an eighth resistor R5', a ninth resistor R1, a tenth resistor R2, a second switch S, an eleventh resistor R4, a twelfth resistor R6 and a second controllable switch K7.

Referring to fig. 1, one end of a first resistor R1' is connected to a ground terminal of a first plug 110 in the charge and discharge connection device 100; one end of the second resistor R2 ' is connected to the other end of the first resistor R1 ', and the other end of the second resistor R2 ' is connected to the first connection confirmation terminal of the first plug 110; the first switch S 'is connected with the second resistor R2' in parallel; one end of the third resistor R4 'is connected to the body ground of the first charge-discharge vehicle 200, and the other end of the third resistor R4' is connected to the first connection confirmation terminal CC1 of the first charge-discharge vehicle 200; one end of the fourth resistor R6 'is connected to the first preset power supply U1'; one end of the first controllable switch K7 ' is connected to the other end of the fourth resistor R6 ', the other end of the first controllable switch K7 ' is connected to the first connection confirmation terminal CC1 of the first charge-discharge vehicle 200, the control end of the first controllable switch K7 ' is connected to the vehicle control device 220 of the first charge-discharge vehicle 200, and the first connection confirmation terminal CC1 of the first charge-discharge vehicle 200 serves as a first detection point of the first charge-discharge vehicle (i.e., detection point 1 ' in fig. 1); one end of the fifth resistor R3 is connected to the ground terminal of the second plug 120 in the charge and discharge connecting device 100, and the other end of the fifth resistor R3 is connected to the second connection confirmation terminal of the second plug 120; one end of the sixth resistor R5 is connected to the second connection confirmation terminal CC2 of the second charge and discharge vehicle 300, the other end of the sixth resistor R5 is connected to the second preset power supply U2, and the second connection confirmation terminal CC2 of the second charge and discharge vehicle 300 serves as a second detection point (i.e., detection point 2 in fig. 1) of the second charge and discharge vehicle 300; one end of the seventh resistor R3 'is connected to the ground terminal of the first plug 110, and the other end of the seventh resistor R3' is connected to the second connection confirmation terminal of the first plug 110; one end of the eighth resistor R5 'is connected to the second connection confirmation terminal CC 2' of the first charge and discharge vehicle 200, the other end of the eighth resistor R5 'is connected to the third preset power source U2', and the second connection confirmation terminal CC2 'of the first charge and discharge vehicle 200 serves as a second detection point (i.e., detection point 2' in fig. 1) of the first charge and discharge vehicle 200; one end of the ninth resistor R1 is connected to the ground terminal of the second plug 120 in the charge and discharge connection device 100; one end of the tenth resistor R2 is connected to the other end of the ninth resistor R1, and the other end of the tenth resistor R2 is connected to the first connection confirmation terminal of the second plug 120; the second switch S is connected in parallel with the tenth resistor R2; one end of the eleventh resistor R4 is connected to the body ground of the second charge and discharge vehicle 200, and the other end of the eleventh resistor R4 is connected to the first connection confirmation terminal CC1 of the second charge and discharge vehicle 300; one end of the twelfth resistor R6 is connected to the fourth preset power supply U1; one end of the second controllable switch K7 is connected to the other end of the twelfth resistor R6, the other end of the second controllable switch K7 is connected to the first connection confirmation terminal CC1 of the second charge/discharge vehicle 200, the control end of the second controllable switch K7 is connected to the vehicle control device 320 of the second charge/discharge vehicle 300, and the first connection confirmation terminal CC1 of the second charge/discharge vehicle 300 serves as a first detection point (i.e., detection point 1 in fig. 1) of the second charge/discharge vehicle 300.

The controllable switches K7 and K7 ' can be normally open switches, when the charging and discharging vehicle is connected with the charging pile, the controllable switch K7(K7 ') is disconnected, and if V2V is needed, namely charging and discharging between the two electric vehicles are needed, the controllable switch K7(K7 ') is controlled to be closed; before the controllable switch K7(K7 ') is closed, the voltage at the detection point 1(1 ') needs to be detected, and the controllable switch K7(K7 ') is closed when the voltage is 0. Thus, it is ensured by the controllable switch K7 (K7') that charging interoperability is not disturbed and that V2V controls the steering action of the steering circuit 10.

In this embodiment, when the first charge-discharge connection confirmation detection point voltage of the first charge-discharge vehicle 200 is 0, the first controllable switch K7' is in the off state, and the discharge function of the first charge-discharge vehicle 200 is not started; when the first charge-discharge connection confirmation detection point voltage of the first charge-discharge vehicle 200 is the first voltage, the first controllable switch K7' is in a closed state, and the first plug 110 is in an unconnected state; when the first charge-discharge connection of the first charge-discharge vehicle 200 confirms that the detection point voltage is a second voltage, the first plug 110 is in a half-connected state, wherein the second voltage is less than the first voltage; when the first charge-discharge connection confirmation detection point voltage of the first charge-discharge vehicle 200 is a third voltage, the first plug 110 is in a full-connection state, wherein the third voltage is less than the second voltage. The manner of determining the charge-discharge connection state of the second plug 120 by the second charge-discharge vehicle 300 is the same, and is not described herein again.

Meanwhile, when the second connection confirmation terminal CC2 of the second charge and discharge vehicle 300 is used as the second charge and discharge connection confirmation detection point (i.e., the detection point 2 in fig. 1) of the second charge and discharge vehicle 300, if the second charge and discharge connection confirmation detection point voltage of the second charge and discharge vehicle 300 is the fourth voltage, the second plug 120 is not connected to the second charge and discharge vehicle 300; the second plug 120 is connected to the second charge and discharge vehicle 300 if the second charge and discharge connection confirmation detection point voltage of the second charge and discharge vehicle 300 is a fifth voltage, wherein the fifth voltage is less than the fourth voltage. The manner of determining whether the first plug 110 is connected to the first charging and discharging vehicle 200 by the first charging and discharging vehicle 200 is the same, and is not described herein again.

Accordingly, it is possible to recognize the charge and discharge connection state of the plug located on the first charge and discharge vehicle 200 side, recognize whether the plug located on the first charge and discharge vehicle 200 side is connected to the first charge and discharge vehicle 200 on the first charge and discharge vehicle 200 side, recognize the charge and discharge connection state of the plug located on the second charge and discharge vehicle 300 side, and recognize whether the plug located on the second charge and discharge vehicle 300 side is connected to the second charge and discharge vehicle 300 on the second charge and discharge vehicle 300 side, thereby being advantageous to ensure the safety and reliability of charge and discharge.

In some examples, the first plug 110 and the second plug 120 are connected by a cable, wherein the cable is comprised of a connection harness including a DC + line, a DC-line, a PE line, an S + line, an S-line, an a + line, and an a-line.

As an example, the first plug 110 includes DC + pins, DC-pins, PE pins, CC1 pins, CC2 pins, A + pins, A-pins, S + pins, and S-pins, and the second plug 120 includes DC + pins, DC-pins, PE pins, CC1 pins, CC2 pins, A + pins, A-pins, S + pins, and S-pins.

In this example, referring to fig. 1, the DC + pin, the DC-pin, the PE pin, the a + pin, the a-pin, the S + pin, and the S-pin of the first plug 110 and the second plug 120 are respectively connected by a DC + line, a DC-line, a PE line, a + line, a-line, S + line, and S-line; the CC1 pin of the first plug 110 is connected to the first connection confirmation terminal of the first plug 110, and the CC2 pin of the first plug 110 is connected to the second connection confirmation terminal of the first plug 110; the CC1 pin of the second header 120 is connected to the first connection confirmation terminal of the second header, and the CC2 pin of the second header 120 is connected to the second connection confirmation terminal of the second header 120.

Referring to fig. 1, a first socket 210 adapted to a first plug 110 is disposed on a first charging and discharging vehicle 200, a second socket 310 adapted to a second plug 120 is disposed on a second charging and discharging vehicle 300, and each of the first socket 210 and the second socket 310 includes a DC + jack, a DC-jack, a PE jack, an S + jack, an S-jack, an a + jack, an a-jack, a CC1 jack, and a CC2 jack.

Wherein, the DC + jack, the DC-jack, the PE jack, the S + jack, the S-jack, the a + jack, the a-jack, the CC1 jack, and the CC2 jack of the first socket 210 are respectively used to be correspondingly connected with the DC + pin, the DC-pin, the PE pin, the S + pin, the S-pin, the a + pin, the a-pin, the CC1 pin, and the CC2 pin of the first plug 110, and the first connection confirmation terminal CC1 'of the first charge and discharge vehicle 200 is connected with the CC1 jack of the first socket 110, and the second connection confirmation terminal CC 2' of the first charge and discharge vehicle 200 is connected with the CC2 jack of the first socket 110; the DC + jack, the DC-jack, the PE jack, the S + jack, the S-jack, the a + jack, the a-jack, the CC1 jack, and the CC2 jack of the second socket 310 are respectively used to be correspondingly connected to the DC + pin, the DC-pin, the PE pin, the S + pin, the S-pin, the a + pin, the a-pin, the CC1 pin, and the CC2 pin of the second plug 120, and the first connection confirmation terminal CC1 of the second charge and discharge vehicle 300 is connected to the CC1 jack of the second socket 120, and the second connection confirmation terminal CC2 of the second charge and discharge vehicle 300 is connected to the CC2 jack of the second socket 310.

As an example, referring to fig. 1, a third resistor R4' may be disposed within the first socket 210 and an eleventh resistor R4 may be disposed within the second socket 310. Therefore, the effective identification of the plug connection state can be ensured.

As an example, as shown in fig. 2, a first electronic lock 111 and a first control board 112 are further disposed in the first plug 110, the first electronic lock 111 controls the on/off of the S-pin in the first plug 110 under the control of the first control board 112, the second plug 120 further includes a second electronic lock 121 and a second control board 122, and the second electronic lock 121 controls the on/off of the S-pin in the second plug 120 under the control of the second control board 122.

The utility model discloses V2V control guide circuit 10 can realize the guide of charging and discharging connection to can realize whether the accurate discernment of charging and discharging vehicle side to the plug connection and connection status, and then be favorable to guaranteeing the security and the reliability of charge and discharge.

Fig. 3 is a block diagram of an electric vehicle according to an embodiment of the present invention.

As shown in fig. 3, the electric vehicle 1000 includes the V2V control guidance circuit 10 of the above embodiment.

The utility model discloses electric vehicle, V2V control guide circuit 10 through above-mentioned embodiment can realize the guide of charging and discharging connection to can realize whether the accurate discernment of charging and discharging vehicle side to the plug is connected and connection status, and then be favorable to guaranteeing the security and the reliability of charging and discharging.

As shown in fig. 4, the electric vehicle 1000 includes a socket 1100, and the socket 1100 is adapted to the first plug 110 or the second plug 120 in the charge and discharge connection device 100, so that when the socket 1100 is connected to the first plug 110 or the second plug 120, the electric vehicle 1000 establishes a charge and discharge connection relationship with other electric vehicles through the charge and discharge connection guiding function of the V2V control guiding circuit 10.

As an example, as shown in fig. 4, the electric vehicle 1000 further includes: a first pull-up resistor Rs1, a controllable switch K and a second pull-up resistor Rs 2.

One end of the first pull-up resistor Rs1 is connected to a first preset power source U1; one end of the controllable switch K is connected to the other end of the first pull-up resistor Rs1, the other end of the controllable switch K is connected to the vehicle control device 1400 of the electric vehicle 1000 as the first detection point J1 of the electric vehicle 1000, and the control end of the controllable switch K is connected to the vehicle control device 1400 of the electric vehicle 1000; one end of the second pull-up resistor Rs2 is connected to the second preset power supply U2, and the other end of the second pull-up resistor Rs2 is connected to the vehicle control apparatus 1400 of the electric vehicle 1000 as the second detection point J2 of the electric vehicle 1000.

Referring to fig. 4, socket 1100 includes a CC1 socket and a CC2 socket, the CC1 socket is connected to first detecting point J1, and the CC2 socket is connected to second detecting point J2.

In this embodiment, referring to fig. 4, when the voltage at the first detection point J1 of the electric vehicle 1000 is 0, the controllable switch K is in the off state, and the discharging function of the electric vehicle 1000 is not started; when the voltage at the first detection point J1 of the electric vehicle 1000 is the first voltage, the controllable switch K is in a closed state, and the first plug 110 or the second plug 120 is in an unconnected state; when the voltage at the first detection point J1 of the electric vehicle 1000 is a second voltage, the first plug 110 or the second plug 120 is in a half-connected state, where the second voltage is smaller than the first voltage; when the voltage at the first detection point J1 of the electric vehicle 1000 is a third voltage, the first plug 110 or the second plug is in a full connection state, where the third voltage is less than the second voltage. Thereby, the electric vehicle 300 can recognize the charge and discharge connection state of the plug.

Meanwhile, when the voltage at the second detection point J2 of the electric vehicle 1000 is the fourth voltage, the first plug 110 or the second plug 120 is not connected to the electric vehicle 1000; if the voltage at the second detection point J2 of the electric vehicle 1000 is a fifth voltage, which is less than the fourth voltage, the first plug 110 or the second plug 120 is connected to the electric vehicle 1000. Thus, the electric vehicle 300 can recognize whether or not the plug is connected to the electric vehicle 1000, and the reliability of the plug charge-discharge connection state recognition can be improved.

The utility model discloses electric vehicle can realize whether connecting and the connection state discerns to outside charge-discharge equipment, and then can improve electric vehicle charge-discharge's security and reliability.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A V2V control steering circuit, comprising:

a first resistor, one end of which is connected to a ground terminal of a first plug in the charge and discharge connection device;

a second resistor having one end connected to the other end of the first resistor and the other end connected to a first connection confirmation terminal of the first plug;

a first switch connected in parallel with the second resistor;

a third resistor having one end connected to a body ground of a first charge-discharge vehicle and the other end connected to a first connection confirmation terminal of the first charge-discharge vehicle;

one end of the fourth resistor is connected to a first preset power supply;

a first controllable switch, one end of which is connected to the other end of the fourth resistor, the other end of which is connected to a first connection confirmation terminal of the first charge-discharge vehicle, a control end of which is connected to a vehicle control device of the first charge-discharge vehicle, and the first connection confirmation terminal of the first charge-discharge vehicle being a first detection point of the first charge-discharge vehicle;

a fifth resistor, one end of which is connected to a ground terminal of a second plug in the charge and discharge connection device, and the other end of which is connected to a second connection confirmation terminal of the second plug;

a sixth resistor, one end of which is connected to a second connection confirmation terminal of a second charge and discharge vehicle, the other end of which is connected to a second preset power supply, the second connection confirmation terminal of the second charge and discharge vehicle serving as a second detection point of the second charge and discharge vehicle;

a seventh resistor, one end of which is connected to the ground terminal of the first plug, and the other end of which is connected to the second connection confirmation terminal of the first plug;

an eighth resistor, one end of which is connected to a second connection confirmation terminal of the first charge-discharge vehicle, the other end of which is connected to a third preset power supply, the second connection confirmation terminal of the first charge-discharge vehicle serving as a second detection point of the first charge-discharge vehicle;

a ninth resistor, one end of which is connected to a ground terminal of the second plug in the charge and discharge connection device;

a tenth resistor, one end of which is connected to the other end of the ninth resistor, the other end of which is connected to the first connection confirmation terminal of the second plug;

a second switch connected in parallel with the tenth resistor;

an eleventh resistor having one end connected to a body ground of a second charge and discharge vehicle and the other end connected to a first connection confirmation terminal of the second charge and discharge vehicle;

one end of the twelfth resistor is connected to a fourth preset power supply;

and one end of the second controllable switch is connected with the other end of the twelfth resistor, the other end of the second controllable switch is connected to a first connection confirmation terminal of the second charge and discharge vehicle, a control end of the second controllable switch is connected to a vehicle control device of the second charge and discharge vehicle, and the first connection confirmation terminal of the second charge and discharge vehicle is used as a first detection point of the second charge and discharge vehicle.

2. The V2V control guidance circuit of claim 1, wherein the first plug and the second plug are connected by a cable, wherein the cable is comprised of a connection harness that includes DC + lines, DC-lines, PE lines, S + lines, S-lines, a + lines, and a-lines.

3. The V2V control guidance circuit of claim 2, wherein the first plug includes a DC + pin, a DC-pin, a PE pin, a CC1 pin, a CC2 pin, an A + pin, an A-pin, an S + pin, and an S-pin, the second plug includes a DC + pin, a DC-pin, a PE pin, a CC1 pin, a CC2 pin, an A + pin, an A-pin, an S + pin, and an S-pin, wherein,

the DC + pin, the DC-pin, the PE pin, the A + pin, the A-pin, the S + pin and the S-pin of the first plug and the second plug are correspondingly connected through a DC + line, a DC-line, a PE line, an A + line, an A-line, an S + line and an S-line respectively;

the CC1 pin of the first plug is connected with the first connection confirmation terminal of the first plug, and the CC2 pin of the first plug is connected with the second connection confirmation terminal of the first plug;

the CC1 pin of the second plug is connected with the first connection confirmation terminal of the second plug, and the CC2 pin of the second plug is connected with the second connection confirmation terminal of the second plug.

4. The V2V control guidance circuit of claim 3, wherein the first charging and discharging vehicle is provided with a first socket adapted to the first plug, the second charging and discharging vehicle is provided with a second socket adapted to the second plug, the first socket and the second socket each include a DC + socket, a DC-socket, a PE socket, an S + socket, an S-socket, an A + socket, an A-socket, a CC1 socket, and a CC2 socket, wherein,

the DC + jack, the DC-jack, the PE jack, the S + jack, the S-jack, the A + jack, the A-jack, the CC1 jack and the CC2 jack of the first socket are respectively used for being correspondingly connected with a DC + pin, a DC-pin, a PE pin, an S + pin, an S-pin, an A + pin, an A-pin, a CC1 pin and a CC2 pin of the first plug, a first connection confirmation terminal of the first charge-discharge vehicle is connected with the CC1 jack of the first socket, and a second connection confirmation terminal of the first charge-discharge vehicle is connected with the CC2 jack of the first socket;

the DC + jack, the DC-jack, the PE jack, the S + jack, the S-jack, the A + jack, the A-jack, the CC1 jack and the CC2 jack of the second socket are respectively used for being correspondingly connected with the DC + pin, the DC-pin, the PE pin, the S + pin, the S-pin, the A + pin, the A-pin, the CC1 pin and the CC2 pin of the second plug, the first connection confirmation terminal of the second charge and discharge vehicle is connected with the CC1 jack of the second socket, and the second connection confirmation terminal of the second charge and discharge vehicle is connected with the CC2 jack of the second socket.

5. The V2V control steering circuit of claim 4, wherein the third resistor is disposed in the first socket and the eleventh resistor is disposed in the second socket.

6. The V2V control guidance circuit of claim 3, wherein a first electronic lock and a first control board are further arranged in the first plug, the first electronic lock controls the on-off of the S-pin in the first plug under the control of the first control board, and the second plug is further provided with a second electronic lock and a second control board, the second electronic lock controls the on-off of the S-pin in the second plug under the control of the second control board.

7. An electric vehicle, characterized by comprising the V2V control guidance circuit of any one of claims 1-6.

8. An electric vehicle, characterized by comprising a socket adapted to a first plug or a second plug in a charge-discharge connection device so that when the socket is connected to the first plug or the second plug, the electric vehicle establishes a charge-discharge connection relationship with other electric vehicles through the charge-discharge connection guidance action of the V2V control guidance circuit according to any one of claims 1 to 6.

9. The electric vehicle of claim 8, further comprising:

the circuit comprises a first pull-up resistor, a second pull-up resistor and a control circuit, wherein one end of the first pull-up resistor is connected to a first preset power supply;

one end of the controllable switch is connected with the other end of the first pull-up resistor, the other end of the controllable switch is used as a first detection point of the electric vehicle and is connected to a vehicle control device of the electric vehicle, and a control end of the controllable switch is connected to the vehicle control device of the electric vehicle;

and one end of the second pull-up resistor is connected to a second preset power supply, and the other end of the second pull-up resistor is used as a second detection point of the electric vehicle and is connected to a vehicle control device of the electric vehicle.

10. The electric vehicle of claim 9, characterized in that the receptacle includes a CC1 jack and a CC2 jack, the CC1 jack being connected to the first test point and the CC2 jack being connected to the second test point.