CN214450338U - Charging and discharging connection device and V2V control guide circuit - Google Patents

Abstract

The utility model discloses a charge-discharge connecting device and V2V control guide circuit, the device includes first plug, and first plug includes first plug first connection and confirms terminal, first electronic lock and first control guide module, and first electronic lock includes first power end, and first control guide module includes first switch; the first plug comprises a first plug body connection confirmation terminal, a first plug body ground terminal and a first control guide module, wherein the first end of the first control guide module is connected with the first plug body connection confirmation terminal, the second end of the first control guide module is connected with the second plug body ground terminal, and the third end of the first control guide module is connected with the first plug body connection confirmation terminal; the second plug is connected with the first plug through a connecting wiring harness, the connecting wiring harness comprises an A + line and an A-line, the first power end is connected with the A + line and the A-line respectively, and the discharging vehicle can confirm the connection state of the connecting device and the charging and discharging vehicle through the first plug.

Description

Charging and discharging connection device and V2V control guide circuit

Technical Field

The disclosure relates to the technical field of vehicle charging and discharging, in particular to a charging and discharging connecting device and a control guide circuit.

Background

When vehicle-to-vehicle charging and discharging are performed, the connection states of the charging and discharging connection device, the discharging vehicle and the charging vehicle are detected by different vehicles, which results in a complex detection device.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to solving at least one of the technical problems of the prior art. Therefore, a first object of the present disclosure is to provide a charging and discharging connection device, which can detect the connection state of the charging and discharging connection device with a discharging vehicle and a charging vehicle by a charging vehicle, and the detection device and the detection circuit are simple.

In order to achieve the above object, a charge/discharge connection device according to an embodiment of the present disclosure connects a discharging vehicle and a charging vehicle, and includes: a first plug mated with a first socket of the discharging vehicle, the first plug including a first plug first connection confirmation terminal, a first electronic lock, and a first control guidance module, the first electronic lock including a first power terminal, the first control guidance module including a first switch; a second plug mated with a second socket of the charging vehicle, the second plug including a second plug first connection confirmation terminal, a second plug body ground terminal, and a second control guidance module, a first end of the second control guidance module being connected with the second plug first connection confirmation terminal, a second end of the second control guidance module being connected with the second plug body ground terminal, a third end of the second control guidance module being connected with the first plug first connection confirmation terminal, the second control guidance module being configured for the discharging vehicle to detect a connection state of the second plug with the charging vehicle; the second plug is connected with the first plug through a connecting wiring harness, the connecting wiring harness comprises an A + line and an A-line, the first power supply terminal is respectively connected with the A + line and the A-line, the first electronic lock is configured to enable the discharging vehicle to determine the state of the first switch according to the lock state, and the state of the first switch is configured to represent the connection state of the first plug and the discharging vehicle.

According to the charging and discharging connection device disclosed by the disclosure, a discharging vehicle and a charging vehicle are connected, a first plug on the connection device is matched with a first socket of the discharging vehicle, a second plug is matched with a second plug on the charging vehicle, a first end of a second control guide module is connected with a first connection confirmation terminal of the second plug, a second end of the second control guide module is connected with a vehicle body ground terminal of the second plug, a third end of the second control guide module is connected with the first connection confirmation terminal of the first plug, and the discharging vehicle can detect the connection state of the second plug and the charging vehicle through the second control guide module; the first power end of the first electronic lock is connected with the A + line and the A-line of the connecting wire harness to supply power to the first electronic lock, the discharging vehicle can confirm the state of the first switch according to the locking state of the first electronic lock, and the state of the first switch represents the connection state of the first plug and the discharging vehicle, so that the connection state of the first plug and the discharging vehicle and the connection state of the second plug and the charging vehicle can be confirmed by the discharging vehicle, the detection device and the detection method are simpler to a certain extent, and the cost is reduced.

In some embodiments, the second plug further comprises a second electronic lock comprising a second power terminal connected to the a + line, the a-line, respectively; the second control guidance module comprises a second switch, and the second electronic lock is configured to be used by the discharging vehicle to control the lock state according to the state of the second switch.

In some embodiments, the first plug further comprises a first plug second connection confirmation terminal and a first plug body ground terminal; the second plug further comprises a second plug second connection confirmation terminal; the first end of the first control guidance module is connected with the first plug second connection confirmation terminal, the second end of the first control guidance module is connected with the first plug vehicle body ground terminal, the third end of the first control guidance module is connected with the second plug second connection confirmation terminal, and the first control guidance module is configured to enable the charging vehicle to detect the connection state of the first plug and the discharging vehicle.

In some embodiments, the first control guidance module comprises a first resistor and a second resistor, the first switch and the first resistor are connected in series, a first end of the first switch and the first resistor after being connected in series is connected with the first plug body ground terminal, a second end of the first switch and the first resistor after being connected in series is respectively connected with the second plug second connection confirmation terminal and a first end of the second resistor, and a second end of the second resistor is connected with the first plug second connection confirmation terminal; when the first switch is turned on or off, the effective resistance values corresponding to the first control guidance module are different, so that the charging vehicle can confirm the connection state of the first plug and the discharging vehicle according to the different effective resistance values.

In some embodiments, the second control guidance module comprises a third resistor and a fourth resistor, the third resistor and the second switch are connected in series, a first end of the third resistor and the second switch after being connected in series is connected with the second plug body ground terminal, a second end of the third resistor and the second switch after being connected in series is connected with the first plug first connection confirmation terminal and a first end of the fourth resistor respectively, and a second end of the fourth resistor is connected with the second plug first connection confirmation terminal; when the second switch is turned on or off, the effective resistance values corresponding to the second control guidance module are different, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the different effective resistance values.

In some embodiments, the connecting harness further comprises an S + line and an S-line; the first electronic lock further comprises a third switch disposed on either the S + line or the S-line, the third switch configured to be controlled to be in a closed state when the first switch is held in a closed state by the first electronic lock; the second electronic lock further comprises a fourth switch disposed on either the S + line or the S-line, the fourth switch being controlled to be in a closed state when the second switch is held in a closed state by the second electronic lock.

In order to achieve the above object, the V2V control steering circuit according to an embodiment of the second aspect of the present disclosure includes: a discharging vehicle control guidance circuit; a charging vehicle control guidance circuit; a harness control guidance circuit including a first plug control guidance circuit, a second plug control guidance circuit connected with the first plug control guidance circuit by a connection harness, the discharging vehicle control guidance circuit being connected with the first plug control guidance circuit, the charging vehicle control guidance circuit being connected with the second plug control guidance circuit; the first plug control guiding circuit comprises a first plug first connection confirmation end, a first electronic lock and a first plug control guiding module, the first electronic lock comprises a first power supply end, and the first plug control guiding module comprises a first switch; the second plug control guidance circuit comprises a second plug first connection confirmation end, a second plug vehicle body ground end and a second plug control guidance module, wherein the first end of the second plug control guidance module is connected with the second plug first connection confirmation end, the second end of the second plug control guidance module is connected with the second plug vehicle body ground end, the third end of the second plug control guidance module is connected with the first plug first connection confirmation end, and the second plug control guidance module is configured for the discharging vehicle to detect the connection state of the second plug and the charging vehicle; the connecting wire harness comprises an A + wire and an A-wire, the first power supply end is respectively connected with the A + wire and the A-wire, the first electronic lock is configured to enable the discharging vehicle to determine the state of the first switch according to the lock state, and the state of the first switch is configured to represent the connection state of the first plug and the discharging vehicle.

According to the V2V control guide circuit of the embodiment of the disclosure, the wire harness control guide circuit is respectively connected with the discharging vehicle control guide circuit and the charging vehicle control guide circuit, the first end of the second plug control guide module is connected with the first connection confirmation end of the second plug, the second end of the second plug control guide module is connected with the ground end of the second plug, the third end of the second plug control guide module is connected with the first connection confirmation end of the first plug, and the discharging vehicle can detect the connection state of the second plug and the charging vehicle through the second plug control guide module; the first power end of the first electronic lock is respectively connected with the A + line and the A-line of the wiring harness to supply power to the first electronic lock, the discharging vehicle can determine the state of the first switch according to the locking state of the first electronic lock, and different states of the first switch represent the connection state of the first plug and the discharging vehicle, so that the discharging vehicle can judge the connection state of the first plug and the discharging vehicle according to the locking state of the first electronic lock, the detection device and the detection method are simpler to a certain extent, and the cost is reduced.

In some embodiments, the second plug control guidance circuit further comprises a second electronic lock comprising a second power terminal connected to the a + line and the a-line, respectively; the second plug control guidance module comprises a second switch, and the second electronic lock is configured to be used by the discharging vehicle to control a lock state according to the state of the second switch.

In some embodiments, the first plug control guidance circuit further comprises a first plug second connection confirmation terminal and a first plug body ground terminal; the second plug control guide circuit also comprises a second plug second connection confirmation end; the first end of the first plug control guiding module is connected with the first plug second connection confirmation end, the second end of the first plug control guiding module is connected with the first plug vehicle body ground end, the third end of the first plug control guiding module is connected with the second plug second connection confirmation end, and the first plug control guiding module is configured to enable the charging vehicle to detect the connection state of the first plug and the discharging vehicle.

In some embodiments, the first plug control guidance module includes a first resistor and a second resistor, the first switch is connected in series with the first resistor, a first end of the first switch connected in series with the first resistor is connected to the first plug body ground, a second end of the first switch connected in series with the first resistor is connected to the second plug second connection confirmation end and the first end of the second resistor, respectively, a second end of the second resistor is connected to the first plug second connection confirmation end, and when the first switch is turned on or turned off, effective resistance values corresponding to the first plug control guidance module are different, so that the charging vehicle can confirm a connection state of the first plug and the discharging vehicle according to the different effective resistance values.

In some embodiments, the second plug control steering module includes a third resistor and a fourth resistor, the third resistor and the second switch are connected in series, a first end of the third resistor and the second switch after being connected in series is connected to the second plug body ground, a second end of the third resistor and the second switch after being connected in series is connected to the first plug first connection confirmation end and the first end of the fourth resistor respectively, and a second end of the fourth resistor is connected to the second plug first connection confirmation end; when the second switch is turned on or off, the effective resistance values corresponding to the second plug control guide module are different, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the different effective resistance values.

In some embodiments, the connecting harness further comprises an S + line and an S-line; the first electronic lock further comprises a third switch disposed on either the S + line or the S-line, the third switch configured to be controlled to be in a closed state when the first switch is held in a closed state by the first electronic lock; the second electronic lock further comprises a fourth switch disposed on either the S + line or the S-line, the fourth switch being controlled to be in a closed state when the second switch is held in a closed state by the second electronic lock.

Additional aspects and advantages of the disclosure 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 disclosure.

Drawings

The above and/or additional aspects and advantages of the present disclosure will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a charge and discharge connection device according to one embodiment of the present disclosure connected to a vehicle;

fig. 2 is a circuit diagram of a V2V control steering module according to one embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure are described in detail below, the embodiments described with reference to the drawings are exemplary, and the embodiments of the present disclosure are described in detail below.

A charge and discharge connection device according to an embodiment of the present disclosure is described below with reference to fig. 1 to 2.

The discharging vehicle 10 and the charging vehicle 20 may be connected by the charging and discharging connection device of the embodiment of the present disclosure, the charging and discharging connection device of the embodiment of the present disclosure includes a first plug 30, the first plug 30 is matched with the first socket 11 of the discharging vehicle 10, the first plug 30 includes a first plug first connection confirmation terminal 35, a first electronic lock 38 and a first control guidance module 39, the first electronic lock 38 includes a first power terminal 381, and the first control guidance module 39 includes a first switch S1; a second plug 40, the second plug 40 being mated with the second socket 21 of the charging vehicle 20, the second plug 40 including a second plug first connection confirmation terminal 44, a second plug body ground terminal 41, and a second control guidance module 49, a first end of the second control guidance module 49 being connected with the second plug first connection confirmation terminal 44, a second end of the second control guidance module 49 being connected with the second plug body ground terminal 41, a third end of the second control guidance module 49 being connected with the first plug first connection confirmation terminal 35, the second control guidance module 49 being configured for the discharging vehicle 10 to detect a connection state of the second plug 40 with the charging vehicle 20; the second plug 40 is connected to the first plug 30 through a connection harness, the connection harness includes an a + line and an a-line, the first power terminal 381 is connected to the a + line and the a-line, respectively, the first electronic lock 38 is configured for the discharging vehicle 10 to determine a state of the first switch S1 according to a lock state, and a state of the first switch S1 is configured to represent a connection state of the first plug 30 to the discharging vehicle 10.

Specifically, when charging and discharging are performed, the first plug 30 is matched with the first socket 11 of the discharging vehicle 10 and can be connected with the discharging vehicle 10 through the first socket 11, the second plug 40 is matched with the second socket 21 of the charging vehicle 20 and can be connected with the charging vehicle 20 through the second socket 21, the first plug 30 is connected with the second plug 40 through the connecting wire harness, so that the charging vehicle 20 and the discharging vehicle 10 can be connected through the charging and discharging connecting device, and the charging vehicle 20 and the discharging vehicle 10 are both provided with power batteries, so that charging and discharging can be performed through the charging and discharging connecting device.

When the first detecting point 12 is provided on the discharging vehicle 10, and the first plug 30 is connected to the discharging vehicle 10 and the second plug 40 is connected to the charging vehicle 20, the first detecting point 12 on the discharging vehicle 10 can detect the connection state of the first plug 30 and the discharging vehicle 20 and the connection state of the second plug 40 and the charging vehicle 20.

Specifically, the first end of the second control guidance module 49 is connected to the second plug first connection confirmation terminal 44, the second end of the second control guidance module 49 is connected to the second plug body ground terminal 41, and the third end of the second control guidance module 49 is connected to the first plug first connection confirmation terminal 35, and the connection state of the second plug 40 and the charging vehicle 20 can be detected by the first plug 30 at the detection point in the discharging vehicle 10.

It can be understood that the connection state includes a half connection state and a full connection state, the half connection state indicates that the plug and the vehicle socket are connected and can be electrically connected, but mechanical locking is not realized between the plug and the socket, the plug can be freely plugged and unplugged, and the full connection state indicates that the plug and the vehicle socket are connected and can be electrically connected, mechanical locking is also realized between the plug and the socket, and the plug and the socket can be unplugged from the socket only by certain operation, so that hot plugging and unplugging can be prevented to a certain extent.

The connection harness connecting the first plug 30 and the second plug 40 includes an a + line and an a-line, it being understood that when one of the first plug 30 or the second plug 40 is connected to the vehicle, the low voltage power supply on the vehicle can be connected to the a + line and the a-line, while the first power terminal 381 of the first electronic lock 38 is connected to the a + line and the a-line, respectively, to obtain power supply when necessary; the lock state of the first electronic lock 38 is related to the state of the first switch S1, and the first electronic lock 38 can be in the closed state only when the first switch S1 is closed, that is, the discharging vehicle 10 and the first plug 30 are in the full connection state, so that after the discharging vehicle 10 is connected to the first plug 30, the discharging vehicle 10 controls the low-voltage power supply to power on the first electronic lock 38, if the state of the first electronic lock 38 is the lock state, it indicates that the first plug 30 and the first socket 11 are in the full connection state, and if the state of the first electronic lock 38 is the unlock state, it indicates that the first electronic lock 38 is in the half connection state, it can be understood that the first electronic lock 38 is in the unlock state in a normal state, and when it is powered on, it can become the lock state.

It can be understood that when the first switch S1 is in the closed state, the mechanical lock between the first plug 30 and the first socket 11 is achieved, and the mechanical lock can be released only when the first switch S1 is in the open state by the related operation, so as to achieve the separation between the first plug 30 and the first socket 30; while the first electronic lock 38 can be in the locked state only when the first switch S1 is in the closed state, it is understood that the first switch S1 can also indicate that the mechanical locking between the first plug 30 and the first socket 11 is achieved when the first switch S1 is in the normally open state.

It can be understood that when the discharging vehicle 10 detects that the discharging vehicle 10 and the first plug 30 are in the fully connected state and the charging vehicle 20 and the second plug 40 are in the fully connected state, the vehicle battery is controlled to discharge, so as to prevent the plugs from being plugged in and out during the charging process, thereby generating an electric shock risk.

It can be understood that the detection point of the discharging vehicle 10 is connected with the charging and discharging connection device through the first plug 30, and the detection of the connection state between the charging and discharging connection device and the charging vehicle 20 and the connection state between the discharging vehicle 10 and the charging and discharging connection device can be realized only through the discharging vehicle 10, so that the detection devices are greatly reduced, and the detection cost is reduced, furthermore, the discharging vehicle 10 can detect the connection state between the charging and discharging connection device and the charging vehicle 20 and the connection state between the discharging vehicle 10 only through the first plug first connection confirmation terminal 35, so that the detection devices can be further reduced, the cost is reduced, and further, because the existing vehicles are required by national standards, the first detection point 12 of the discharging vehicle 10 is arranged. Therefore, the existing vehicles can discharge the charging vehicle 20 without changing hardware, so that the vehicle-to-vehicle discharging cost can be further reduced.

In an embodiment of the present disclosure, the second plug 40 further includes a second electronic lock 48, the second electronic lock 48 includes a second power terminal 481, and the second power terminal 481 is respectively connected to the a + line and the a-line; the second control guidance module 49 includes a second switch S2, the second electronic lock 48 is configured for the discharging vehicle 10 to control the lock state according to the state of the second switch S2

It is understood that the second plug 40 further includes a second electronic lock 48, the second power terminal 481 of the second electronic lock 48 is respectively connected with the a + line and the a-line, so as to be able to obtain power supply, when the second switch S2 is in the closed state, it indicates that the second plug 40 is in the full connection state with the charging vehicle 20, and when the discharging vehicle 10 is supplying power to the low-voltage power supply, the second electronic lock 48 can be in the locked state, so that the discharging vehicle 10 confirms the connection state of the second plug 40 and the charging vehicle 20 according to the locked state of the second electronic lock 48, and it is understood that the second electronic lock 48 may be the same as the first electronic lock 38.

In order to further prevent the hot-plugging plug, when the plug and the socket are in a full connection state, the electronic lock can be in a locking state to keep the full connection state between the plug and the socket, so that the hot-plugging plug is prevented from being realized in the charging and discharging process; for example, when the first plug 30 is connected to the discharging vehicle 10 and the first switch S1 is in a closed state, the first plug 30 and the discharging vehicle 10 are in a fully connected state, and at this time, the first electronic lock 38 can be in a locked state to keep the first switch S1 in the closed state, but cannot be in an open state by external force or other operation, so that the first plug 30 and the discharging vehicle 10 are kept in the fully connected state, when charging and discharging are completed, the charging vehicle 20 controls the low-voltage power supply to disconnect the first electronic lock 38, and after the first electronic lock 38 is disconnected, the first switch S1 can be in the open state by external force or other operation, so as to plug and unplug the plug;

in one embodiment disclosed herein, the first plug 30 further comprises a first plug second connection confirmation terminal 34 and a first plug body ground terminal 31; the second plug 40 further includes a second plug second connection confirmation terminal 45; a first end of the first control guidance module 39 is connected to the first plug second connection confirmation terminal 34, a second end of the first control guidance module 39 is connected to the first plug body ground terminal 31, a third end of the first control guidance module 39 is connected to the second plug second connection confirmation terminal 45, and the first control guidance module 39 is configured to allow the charging vehicle 20 to detect a connection state of the first plug 30 and the discharging vehicle 10.

It is understood that the first plug body ground terminal 31 and the second plug body ground terminal 41 are connected by a connection harness, and the first plug body ground terminal 31 is connected to the discharging vehicle 10 through the first socket 11, and the second plug body ground terminal 41 is connected to the charging vehicle 20 through the second socket 21, so that the body ground of the charging vehicle 20 and the body ground of the discharging vehicle 10 are connected to equalize the zero point potentials thereof, whereby the detection result of the detection point of the discharging vehicle 10 can be made more accurate.

Specifically, the first control guidance module 39 is connected to the charging vehicle 20 through the second plug second connection confirmation terminal 45, and the second detection point 22 on the charging vehicle 20 can determine whether or not charging preparation is required according to the detection result.

It is understood that, when the first switch S1 in the first control guidance module 39 is closed or opened, the charging vehicle 20 may confirm the connection state of the first plug 30 and the discharging vehicle 10 according to the first control guidance module 39, thereby confirming whether the charging preparation is required.

The first control guidance module 39 comprises a first resistor R1 and a second resistor R2, a first switch S1 is connected in series with the first resistor R1, a first end of the first switch S1 and the first resistor R1 are connected in series with the first plug body ground terminal 31, a second end of the first switch S1 and the first resistor R1 are connected in series with the second plug second connection confirmation terminal 45 and a first end of the second resistor R2, respectively, and a second end of the second resistor R2 is connected with the first plug second connection confirmation terminal 34; when the first switch S1 is turned on or off, the effective resistance values corresponding to the first control guidance module 39 are different, so that the charging vehicle 20 can confirm the connection state of the first plug 30 and the discharging vehicle 10 according to the different effective resistance values.

The second control guidance module 49 comprises a third resistor R3 and a fourth resistor R4, the third resistor R3 is connected in series with the second switch S2, a first end of the third resistor R3 and the second switch S2 are connected in series is connected with the second plug body ground terminal 41, a second end of the third resistor R3 and the second switch S2 are connected with the first plug first connection confirmation terminal 35 and the first end of the fourth resistor R4, respectively, and a second end of the fourth resistor R4 is connected with the second plug first connection confirmation terminal 44; when the second switch S2 is turned on or off, the effective resistance values corresponding to the second control guidance module 49 are different, so that the discharging vehicle 10 can confirm the connection state of the second plug 40 and the charging vehicle 20 according to the different effective resistance values.

Specifically, the first end of the first switch S1 connected in series with the first resistor R1 is connected to the first plug body ground terminal 31, and the first end of the third resistor R3 connected in series with the second switch S2 is connected to the second plug body ground terminal 41, it can be understood that the first plug body ground terminal 31 is connected to the second plug body ground terminal 41 through the connection harness, and when the first plug 30 and the second plug 40 are connected to the discharging vehicle 10 and the charging vehicle 20, respectively, the body grounds of the discharging vehicle 10 and the charging vehicle 20 can be connected, so that the body ground potentials thereof are equalized, and the accuracy of the detection point detection result is ensured.

During the charging and discharging connection, the second end of the second resistor R2 is connected to the first socket 11 of the discharging vehicle 10 through the first plug second connection confirmation terminal 34, the fifth resistor R5 is provided in the first socket 11, the first end of the fifth resistor R5 is connected to the first plug second connection confirmation terminal 34 through the first socket second connection confirmation terminal 15, and the second end of the fifth resistor R5 is connected to the first socket vehicle body ground terminal 12; a second end of the first switch S1 connected in series with the first resistor R1 is connected to a first end of the second resistor R2, a second end of the first switch S1 connected in series with the first resistor R1 is also connected to a second socket second connection confirmation terminal through a second plug second connection confirmation terminal 45, the second socket second connection confirmation terminal is connected to a charging vehicle second power source U2 on the charging vehicle 20 through an eighth resistor R8, and a second detection point 22 of the charging vehicle 20 is arranged between the second socket second connection confirmation terminal and the eighth resistor R8, when the first switch S1 is closed or opened, the first resistor R1 is connected or not connected to the circuit, so that the first control guidance module 39 has different effective resistance values, so that the detection points of the charging vehicle 20 detect different voltage values, and the charging vehicle 20 confirms whether charging preparation is needed.

During the charging and discharging connection, the second end of the fourth resistor R4 is connected to the second socket 21 of the charging vehicle 20 through the second plug first connection confirmation terminal 44, the seventh resistor R7 is provided in the second socket 21, the first end of the seventh resistor R7 is connected to the second plug first connection confirmation terminal 44 through the second socket first connection confirmation terminal 25, and the second end of the seventh resistor R7 is connected to the second socket vehicle body ground terminal 41; a second end of the second switch S2 connected in series with the third resistor R3 is connected to a first end of the fourth resistor R4, a second end of the second switch S2 connected in series with the third resistor R3 is also connected to the first plug first connection confirmation terminal 35 and the first socket first connection confirmation terminal 16, the first plug first connection confirmation terminal 16 is connected to the first power supply 12 on the discharging vehicle 10 through the sixth resistor R6, the first detection point 12 of the discharging vehicle 10 is arranged between the first socket first connection confirmation terminal 16 and the sixth resistor R6, and when the second switch S2 is closed or opened, the third resistor R3 is connected to or not connected to the circuit, so that the effective resistance values corresponding to the second control guidance module 49 are different, and the discharging vehicle 10 recognizes the connection state of the second plug 40 and the charging vehicle 20 through different resistance values.

In one embodiment of the present disclosure, the connection harness further includes an S + line and an S-line; the first electronic lock 38 further includes a third switch S3, the third switch S3 being disposed on the S + line or the S-line, the third switch S3 being configured to be controlled to be in a closed state when the first switch S1 is held in a closed state by the first electronic lock 38; the second electronic lock 48 further includes a fourth switch S4, the fourth switch S4 being disposed on either the S + line or the S-line, and the fourth switch S4 being controlled to be in a closed state when the second switch S2 is held in a closed state by the second electronic lock 48.

Specifically, when charging and discharging are performed, the third switch S3 is arranged on the S + or S-line, the fourth switch S4 is arranged on the S + or S-line, when the third switch S3 and the fourth switch S4 are closed simultaneously, the S + or S-line is conducted, so that the discharging vehicle 10 can communicate with the charging vehicle 20, when the discharging vehicle 10 detects that communication with the charging vehicle 20 is possible, it indicates that the charging and discharging connection devices and the charging and discharging vehicle 10 are both in the fully connected state, and the first electronic lock 38 is in the closed state to keep the first switch S1 closed and the second electronic lock 48 is in the closed state to keep the second switch S2 closed, so that the discharging vehicle 10 can be controlled to discharge the charging vehicle 20; when the third switch S3 or the fourth switch S4 is turned off, the S + or S-line is turned off, thereby enabling the discharging vehicle 10 to disconnect the communication with the charging vehicle 20.

It will be appreciated that the third switch S3 and the fourth switch S4 are connected in series and, only when closed at the same time, render the S + or S-line conductive, thereby enabling the charging vehicle 20 and the discharging vehicle 10 to communicate.

The first plug 30 is connected to the first socket 11, the first plug body ground terminal 31 is connected to the first socket body ground terminal 12, the first plug S + terminal 32 is connected to the first socket S + terminal 13, the first plug S-terminal 33 is connected to the first socket S-terminal 14, the first plug second connection confirmation terminal 34 is connected to the first socket second connection confirmation terminal 15, the first plug first connection confirmation terminal 35 is connected to the first socket first connection confirmation terminal 16, the first plug a + terminal 36 is connected to the first socket a + terminal 17, and the first plug a-terminal 37 is connected to the first socket a-terminal 18, wherein the first plug second connection confirmation terminal 34 may be a CC2 terminal on the first plug, and the first plug first connection confirmation terminal 35 may be a CC1 terminal on the first plug.

The second plug 40 is connected to the second socket 21, the second plug body ground terminal 41 is connected to the second socket body ground terminal 22, the second plug S + terminal 42 is connected to the second socket S + terminal 23, the second plug S-terminal 43 is connected to the second socket S-terminal 24, the second plug first connection confirmation terminal 44 is connected to the second socket first connection confirmation terminal 25, the second plug second connection confirmation terminal 45 is connected to the second socket second connection confirmation terminal 26, the second plug a + terminal 46 is connected to the second socket a + terminal 27, and the second plug a-terminal 47 is connected to the second socket a-terminal 28, wherein the second plug first connection confirmation terminal 44 may be a CC1 terminal on the second plug, and the second plug second connection confirmation terminal 45 may be a CC2 terminal on the second plug.

The V2V control steering circuit according to an embodiment of the present disclosure is described below with reference to the drawings.

The V2V control pilot circuit of the disclosed embodiment includes a discharging vehicle control pilot circuit a 10; a charging vehicle control guidance circuit a 20; the wire harness control guide circuit A50, the wire harness control guide circuit A50 comprises a first plug control guide circuit A30 and a second plug control guide circuit A40 connected with the first plug control guide circuit A30 through a connecting wire harness, the discharging vehicle control guide circuit A10 is connected with the first plug control guide circuit A30, and the charging vehicle control guide circuit A20 is connected with the second plug control guide circuit A40; the first plug control guiding circuit a30 comprises a first plug first connection confirmation terminal a35, a first electronic lock 38 and a first plug control guiding module a39, the first electronic lock 38 comprises a first power terminal a381, and the first plug control guiding module a39 comprises a first switch S1; the second plug control guidance circuit a40 includes a second plug first connection confirmation terminal a44, a second plug body ground terminal a41 and a second plug control guidance module a49, a first end of the second plug control guidance module a49 is connected with the second plug first connection confirmation terminal a44, a second end of the second plug control guidance module a49 is connected with the second plug body ground terminal a41, a third end of the second plug control guidance module a49 is connected with the first plug first connection confirmation terminal a35, and the second plug control guidance module a49 is configured for the discharging vehicle to detect a connection state of the second plug with the charging vehicle; the connecting wire harness comprises an A + line and an A-line, the first power supply end A381 is respectively connected with the A + line and the A-line, the first electronic lock 38 is configured to enable the discharging vehicle to determine the state of the first switch S1 according to the lock state, and the state of the first switch S1 is configured to represent the connection state of the first plug and the discharging vehicle.

During charging and discharging, the discharging vehicle control guidance circuit a10 is connected with the charging vehicle control guidance circuit a20 through the wire harness control guidance circuit a50, the first plug control guidance circuit a30 is connected with the discharging vehicle control guidance circuit a10, and the second plug control guidance circuit a40 is connected with the charging vehicle control guidance circuit a 20; and then the first plug is matched with the first socket of the discharging vehicle and can be connected with the discharging vehicle through the first socket, the second plug is matched with the second socket of the charging vehicle and can be connected with the charging vehicle through the second socket, the first plug is connected with the second plug through a connecting wire harness, therefore, the charging vehicle and the discharging vehicle can be connected, and the charging vehicle and the discharging vehicle are both provided with power batteries, so that charging and discharging can be carried out.

The discharging vehicle control guidance circuit a10 is provided with a first detection point 12, and the first detection point 12 of the discharging vehicle control guidance circuit a10 can detect the connection state of the first plug and the discharging vehicle and the connection state of the second plug and the charging vehicle when the first plug and the discharging vehicle are connected and the second plug and the charging vehicle are connected.

Specifically, the first end of the second plug control guidance module a49 is connected to the second plug first connection confirmation end a44, the second end of the second plug control guidance module a49 is connected to the second plug body ground end a41, the third end of the second control guidance module is connected to the first plug first connection confirmation end a35, and the first detection point 12 of the discharging vehicle control guidance circuit a10 can detect the connection state of the second plug and the charging vehicle through the first plug.

The connection harness connecting the first plug and the second plug includes an a + line and an a-line, it being understood that when one of the first plug or the second plug is connected to the vehicle, the low voltage power supply on the vehicle can be connected to the a + line and the a-line, while the first power supply terminal a381 of the first electronic lock 38 is connected to the a + line and the a-line, respectively, to obtain power supply when needed; the lock state of the first electronic lock 38 is related to the state of the first switch S1, and the first electronic lock 38 can be in the closed state only when the first switch S1 is closed, that is, the discharging vehicle and the first plug are in the full connection state, so that after the discharging vehicle is connected to the first plug, the discharging vehicle can control the low-voltage power supply to power on the first electronic lock 38, if the state of the first electronic lock 38 is the locked state, it indicates that the first plug and the first socket are in the full connection state, and if the state of the first electronic lock 38 is the unlocked state, it indicates that the first electronic lock 38 is in the half connection state.

It can be understood that when the discharging vehicle control guiding circuit a10 detects that the discharging vehicle and the first plug are in a full connection state and the charging vehicle and the second plug are in a full connection state, the discharging vehicle battery is controlled to discharge, so as to prevent the plugs from being plugged in and out during the charging process, thereby generating electric shock risk.

It can be understood that, the first detection point 12 of the discharging vehicle control guide circuit a10 and the wire harness control guide circuit a50 can detect the connection state of the plug with the charging vehicle and the discharging vehicle respectively only through the discharging vehicle, greatly reducing the detection devices, reducing the detection cost, and the discharging vehicle can detect the connection state of the first plug discharging vehicle, the second plug and the charging vehicle only through the first plug first connection confirmation end a35, further reducing the detection devices, reducing the cost, and further, because the existing vehicles are required by national standards, the first detection point 12 of the discharging vehicle control guide circuit a10 is arranged. Therefore, the existing vehicles can discharge the charged vehicles under the condition of not changing hardware, so that the vehicle-to-vehicle discharging cost can be further reduced.

In one embodiment of the present disclosure, the second plug control guiding circuit a40 further includes a second electronic lock 48, the second electronic lock 48 includes a second power terminal a481, and the second power terminal a481 is respectively connected to the a + line and the a-line; the second plug control guidance module a49 includes a second switch S2, and the second electronic lock 48 is configured for the discharging vehicle to control the lock state according to the state of the second switch S2.

The second power supply terminal a481 of the second electronic lock 48 is connected to the a + line and the a-line, respectively, so that power can be supplied, and when the second switch S2 is in a closed state, it indicates that the second plug and the charging vehicle are in a fully connected state, and when the discharging vehicle supplies power to the low-voltage power supply, the second electronic lock 48 can be in a locked state, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the lock state of the second electronic lock 48, and it can be understood that the second electronic lock 48 may be the same as the first electronic lock 38.

In order to further prevent the hot-plugging plug, when the plug and the socket are in a full connection state, the electronic lock can be in a locking state to keep the full connection state between the plug and the socket, so that the hot-plugging plug is prevented from being realized in the charging and discharging process; for example, when the first plug and the discharging vehicle are connected and the first switch S1 is in a closed state, the first plug and the discharging vehicle are in a fully connected state, and at this time, the first electronic lock 38 can be in a locked state to keep the first switch S1 in the closed state, but cannot be in an open state by external force or other operation, so that the first plug and the discharging vehicle are in the fully connected state, when charging and discharging are completed, the charging vehicle controls the low-voltage power supply to power off the first electronic lock 38, and after the first electronic lock 38 is powered off, the first switch S1 is in the open state by external force or other operation, so as to plug and unplug the plug.

In one embodiment of the present disclosure, the first plug control guidance circuit a30 further includes a first plug second connection confirmation terminal a34 and a first plug body ground terminal a 31; the second plug control leading circuit a40 further includes a second plug second connection confirmation terminal a 45; the first end of the first plug control guidance module a39 is connected with the first plug second connection confirmation end a34, the second end of the first plug control guidance module a39 is connected with the first plug vehicle body ground end a31, the third end of the first plug control guidance module a39 is connected with the second plug second connection confirmation end a45, and the first plug control guidance module a39 is configured to allow the charging vehicle to detect the connection state of the first plug and the discharging vehicle.

The first plug vehicle body ground A31 and the second plug vehicle body ground A41 are connected through a connecting wire harness, the first plug vehicle body ground A31 is connected with the discharging vehicle through a first socket, and the second plug vehicle body ground A41 is connected with the charging vehicle through a second socket, so that the charging vehicle body ground and the discharging vehicle body ground are connected to enable the zero-point potentials of the charging vehicle body ground and the discharging vehicle body ground to be equal, and the detection result of the discharging vehicle detection point can be more accurate.

Specifically, the first plug control guidance module a39 is connected to the charging vehicle control guidance circuit a20 through the second plug second connection confirmation terminal a45, and the second detection point 22 of the charging vehicle control guidance circuit a20 can determine whether charging preparation is needed according to the detection result.

The second plug control guide module A49 is connected with the discharging vehicle control guide circuit A10 through the first plug first connection confirmation terminal A35

It is understood that, when the first plug controls the closing or opening of the first switch S1 in the lead module a39, the charging vehicle may confirm the connection state of the first plug and the discharging vehicle according to the first plug control lead module a39, thereby confirming whether the charging preparation is required.

In an embodiment of the present disclosure, the first plug control guidance module a39 includes a first resistor R1 and a second resistor R2, the first switch S1 and the first resistor R1 are connected in series, a first end of the first switch S1 and the first resistor R1 which are connected in series is connected to the first plug body ground a31, a second end of the first switch S1 and the first resistor R1 which are connected in series are respectively connected to a first end of a second plug second connection confirmation terminal a45 and a first end of a second resistor R2, and a second end of the second resistor R2 is connected to a first plug second connection confirmation terminal a 34; when the first switch S1 is turned on or off, the effective resistance values corresponding to the first plug control guidance module a39 are different, so that the charging vehicle can confirm the connection state of the first plug and the discharging vehicle according to the different effective resistance values.

The second plug control guide module A49 comprises a third resistor R3 and a fourth resistor R4, the third resistor R3 is connected with a second switch S2 in series, a first end of the third resistor R3 which is connected with the second switch S2 in series is connected with a second plug vehicle body ground end A41, a second end of the third resistor R3 which is connected with the second switch S2 in series is connected with a first plug first connection confirmation end A35 and a first end of the fourth resistor R4 respectively, and a second end of the fourth resistor R4 is connected with a second plug first connection confirmation end A44; when the second switch S2 is turned on or off, the effective resistance values corresponding to the second plug control guidance module a49 are different, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the different effective resistance values.

The first switch S1 and the first resistor R1 are connected in series, the first end of the first switch S1 and the first resistor R1 is connected with the first plug vehicle body ground end A31, the first end of the third resistor R3 and the second switch S2 are connected in series, and the second plug vehicle body ground end A41, it can be understood that the first plug vehicle body ground end is connected with the second plug vehicle body ground end through a connecting wire harness, and when the first plug and the second plug are respectively connected with the discharging vehicle and the charging vehicle, the vehicle body ground of the discharging vehicle and the vehicle body ground of the charging vehicle can be connected, so that the potential of the vehicle body ground is equal, and the accuracy of the detection point detection result is ensured.

During charging and discharging connection, the second end of the second resistor R2 is connected with the discharging vehicle control guide circuit through the first plug second connection confirmation end A34, a fifth resistor R5 is arranged in the discharging vehicle control guide circuit, the first end of the fifth resistor R5 is connected with the first plug second connection confirmation end A15 through the first socket second connection confirmation end A34, and the second end of the fifth resistor is connected with the first socket vehicle body ground end A12; a second end of the first switch S1 connected in series with the first resistor R1 is connected with a first end of a second resistor R2, a second end of the first switch S1 connected in series with the first resistor R1 is further connected with a second plug second connection confirmation end a45 and a second socket second connection confirmation end a26, a second socket second connection confirmation end a26 is connected with a charging vehicle power supply U2 on the charging vehicle through an eighth resistor, and a second detecting point 22 of the charging vehicle control guiding circuit is arranged between the second socket second connection confirmation terminal A26 and the eighth resistor R8, when the first switch S1 is closed or opened, the first resistor R1 is either switched into or not switched into the circuit, therefore, the effective resistance values corresponding to the first plug control guidance module are different, so that the second detection point of the charging vehicle control guidance circuit a20 detects different voltage values, and the charging vehicle confirms whether charging preparation is needed.

During charging and discharging connection, the second end of the fourth resistor R4 is connected with the charging vehicle control guidance circuit through the second plug first connection confirmation end a44, the charging vehicle control guidance circuit is provided with a seventh resistor R7, the first end of the seventh resistor R7 is connected with the second plug first connection confirmation end a25 and the second plug first connection confirmation end a44 through the second socket, and the second end of the seventh resistor R7 is connected with the second socket vehicle body ground end a 22; a second end of the second switch S2 connected in series with the third resistor R3 is connected with a first end of the fourth resistor R4, a second end of the second switch S2 connected in series with the third resistor R3 is further connected with a first plug first connection confirmation end a35 and a first socket first connection confirmation end a16, the first socket first connection confirmation end a16 is connected with a discharging vehicle power supply U1 on the discharging vehicle through a sixth resistor R6, a discharging vehicle first detection point 12 is arranged between the first socket first connection confirmation end a16 and the sixth resistor R6, when the second switch S2 is closed or opened, the third resistor R3 is connected or not connected to the circuit, so that the effective resistance values corresponding to the second control guide module are different, and the discharging vehicle recognizes the connection state of the second plug and the charging vehicle through different resistance values.

In one embodiment of the present disclosure, the connection harness further includes an S + line and an S-line; the first electronic lock 38 further comprises a third switch S3, the third switch S3 being disposed on the S + line or the S-line, the third switch S3 being configured to be controlled to be in a closed state when the first electronic lock 38 holds the first switch S1 in a closed state; the second electronic lock 48 also includes a fourth switch S4, the fourth switch S4 being disposed on the S + line or the S-line when the fourth switch S4 is configured to maintain the second switch S2 in a closed state by the second electronic lock 48.

When the discharging vehicle is detected to be capable of communicating with the charging vehicle, the plug and the charging vehicle are in a fully connected state, the first electronic lock 38 is in a closed state to keep the first switch S1 closed, and the second electronic lock 48 is in a closed state to keep the second switch S2 closed, so that the discharging vehicle can be controlled to discharge to the charging vehicle; when the third switch S3 or the fourth switch S4 is turned off, the S + or S-line is turned off, thereby enabling the discharging vehicle to disconnect the communication with the charging vehicle.

It will be appreciated that the third switch and the fourth switch are connected in series and only when closed at the same time will the S + or S-line be rendered conductive, thereby enabling the charging vehicle and the discharging vehicle to communicate.

The first plug control guide circuit a30 and the discharging vehicle control guide circuit a10 are connected, the first plug vehicle body ground terminal a31 is connected to the first socket vehicle body ground terminal a12, the first plug S + terminal a32 is connected to the first socket S + terminal a13, the first plug S-terminal a33 is connected to the first socket S-terminal a14, the first plug second connection confirmation terminal a34 is connected to the first socket second connection confirmation terminal a15, the first plug first connection confirmation terminal a35 is connected to the first socket first connection confirmation terminal a16, the first plug a + terminal a36 is connected to the first socket a + terminal a17, and the first plug a-terminal a37 is connected to the first socket a-terminal a18, wherein the first plug second connection confirmation terminal a34 may be a CC2 terminal of the first plug control guide circuit, and the first plug first connection confirmation terminal a35 may be a CC1 terminal of the first plug control guide circuit.

The second plug control guide circuit a40 and the charging vehicle control guide circuit a20 are connected, the second plug vehicle body ground terminal a41 and the second socket vehicle body ground terminal a22 are connected, the second plug S + terminal a42 and the second socket S + terminal a23 are connected, the second plug S-terminal a43 and the second socket S-terminal a24 are connected, the second plug first connection confirmation terminal a44 and the second socket first connection confirmation terminal a25 are connected, the second plug second connection confirmation terminal a45 and the second socket second connection confirmation terminal a26 are connected, the second plug a + terminal a46 and the second socket a + terminal a27 are connected, and the second plug a-terminal a47 and the second socket a-terminal a28 are connected, wherein the second plug first connection confirmation terminal a44 may be a CC1 terminal of the second plug control guide circuit, and the second plug a45 may be a2 terminal of the second plug control guide circuit.

In the embodiments of the present disclosure, resistors and switches used in the pilot circuit, such as R1, R2, R3, R4, R5, R6, R7, R8, S1, S2, and the like, and their connection are merely examples, and may be replaced by other equivalent circuits. Further, the resistors in the first plug 1 and the second plug 2, such as R1, R2, R3, R4, R5, etc., may change parameters according to the entire vehicle sampling circuit, and may take any value, including 0 Ω and ∞.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means 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 present disclosure. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present disclosure have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the disclosure, the scope of which is defined by the claims and their equivalents.

Claims (12)

1. A charge-discharge connection device that connects a discharge vehicle and a charge vehicle, characterized by comprising:

a first plug mated with a first socket of the discharging vehicle, the first plug including a first plug first connection confirmation terminal, a first electronic lock, and a first control guidance module, the first electronic lock including a first power terminal, the first control guidance module including a first switch;

a second plug mated with a second socket of the charging vehicle, the second plug including a second plug first connection confirmation terminal, a second plug body ground terminal, and a second control guidance module, a first end of the second control guidance module being connected with the second plug first connection confirmation terminal, a second end of the second control guidance module being connected with the second plug body ground terminal, a third end of the second control guidance module being connected with the first plug first connection confirmation terminal, the second control guidance module being configured for the discharging vehicle to detect a connection state of the second plug with the charging vehicle;

the second plug is connected with the first plug through a connecting wiring harness, the connecting wiring harness comprises an A + line and an A-line, the first power supply terminal is respectively connected with the A + line and the A-line, the first electronic lock is configured to enable the discharging vehicle to determine the state of the first switch according to a lock state, and the state of the first switch is configured to represent the connection state of the first plug and the discharging vehicle.

2. The charge-discharge connection device according to claim 1, wherein the second plug further comprises a second electronic lock, the second electronic lock comprising a second power terminal, the second power terminal being connected to the a + line and the a-line, respectively;

the second control guidance module comprises a second switch, and the second electronic lock is configured to be used by the discharging vehicle to control the lock state according to the state of the second switch.

3. The charge-discharge connection device according to claim 2, wherein the first plug further includes a first plug second connection confirmation terminal and a first plug body-ground terminal;

the second plug further comprises a second plug second connection confirmation terminal;

the first end of the first control guidance module is connected with the first plug second connection confirmation terminal, the second end of the first control guidance module is connected with the first plug vehicle body ground terminal, the third end of the first control guidance module is connected with the second plug second connection confirmation terminal, and the first control guidance module is configured to enable the charging vehicle to detect the connection state of the first plug and the discharging vehicle.

4. The charge-discharge connection device according to claim 3, wherein the first control guidance module includes a first resistor and a second resistor, the first switch is connected in series with the first resistor, a first end of the first switch connected in series with the first resistor is connected to the first plug body ground terminal, a second end of the first switch connected in series with the first resistor is connected to the second plug second connection confirmation terminal and a first end of the second resistor, respectively, and a second end of the second resistor is connected to the first plug second connection confirmation terminal;

when the first switch is turned on or off, the effective resistance values corresponding to the first control guidance module are different, so that the charging vehicle can confirm the connection state of the first plug and the discharging vehicle according to the different effective resistance values.

5. The charge-discharge connection device according to claim 4, wherein the second control guidance module includes a third resistor and a fourth resistor, the third resistor and the second switch are connected in series, a first end of the third resistor and the second switch connected in series is connected to the second plug body ground terminal, a second end of the third resistor and the second switch connected in series is connected to the first plug first connection confirmation terminal and a first end of the fourth resistor, respectively, and a second end of the fourth resistor is connected to the second plug first connection confirmation terminal;

when the second switch is turned on or off, the effective resistance values corresponding to the second control guidance module are different, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the different effective resistance values.

6. The charge-discharge connection device according to claim 5, wherein the connection harness further includes an S + line and an S-line;

the first electronic lock further comprises a third switch disposed on either the S + line or the S-line, the third switch configured to be controlled to be in a closed state when the first switch is held in a closed state by the first electronic lock;

the second electronic lock further comprises a fourth switch disposed on either the S + line or the S-line, the fourth switch being controlled to be in a closed state when the second switch is held in a closed state by the second electronic lock.

7. A V2V control steering circuit, comprising:

a discharging vehicle control guidance circuit;

a charging vehicle control guidance circuit;

a harness control guidance circuit including a first plug control guidance circuit, a second plug control guidance circuit connected with the first plug control guidance circuit by a connection harness, the discharging vehicle control guidance circuit being connected with the first plug control guidance circuit, the charging vehicle control guidance circuit being connected with the second plug control guidance circuit;

the first plug control guiding circuit comprises a first plug first connection confirmation end, a first electronic lock and a first plug control guiding module, the first electronic lock comprises a first power supply end, and the first plug control guiding module comprises a first switch;

the second plug control guidance circuit comprises a second plug first connection confirmation end, a second plug vehicle body ground end and a second plug control guidance module, wherein the first end of the second plug control guidance module is connected with the second plug first connection confirmation end, the second end of the second plug control guidance module is connected with the second plug vehicle body ground end, the third end of the second plug control guidance module is connected with the first plug first connection confirmation end, and the second plug control guidance module is configured for the discharging vehicle to detect the connection state of the second plug and the charging vehicle;

the connecting wire harness comprises an A + wire and an A-wire, the first power supply end is respectively connected with the A + wire and the A-wire, the first electronic lock is configured to enable the discharging vehicle to determine the state of the first switch according to the lock state, and the state of the first switch is configured to represent the connection state of the first plug and the discharging vehicle.

8. The V2V control guidance circuit of claim 7, wherein the second plug control guidance circuit further comprises a second electronic lock, the second electronic lock comprising a second power supply terminal connected to the a + line and the a-line, respectively;

the second plug control guidance module comprises a second switch, and the second electronic lock is configured to control a lock state of the discharging vehicle according to the state of the second switch.

9. The V2V control guidance circuit of claim 8, wherein the first plug control guidance circuit further comprises a first plug second connection confirmation terminal and a first plug body ground terminal;

the second plug control guide circuit also comprises a second plug second connection confirmation end;

the first end of the first plug control guiding module is connected with the first plug second connection confirmation end, the second end of the first plug control guiding module is connected with the first plug vehicle body ground end, the third end of the first plug control guiding module is connected with the second plug second connection confirmation end, and the first plug control guiding module is configured to enable the charging vehicle to detect the connection state of the first plug and the discharging vehicle.

10. The V2V control guidance circuit according to claim 9, wherein the first plug control guidance module comprises a first resistor and a second resistor, the first switch is connected in series with the first resistor, a first end of the first switch connected in series with the first resistor is connected to the first plug body ground, a second end of the first switch connected in series with the first resistor is connected to the second plug second connection confirmation terminal and a first end of the second resistor, respectively, and a second end of the second resistor is connected to the first plug second connection confirmation terminal;

when the first switch is turned on or off, the effective resistance values corresponding to the first plug control guide module are different, so that the charging vehicle can confirm the connection state of the first plug and the discharging vehicle according to the different effective resistance values.

11. The V2V control guidance circuit according to claim 10, wherein the second plug control guidance module comprises a third resistor and a fourth resistor, the third resistor and the second switch are connected in series, a first end of the third resistor and the second switch connected in series is connected to the second plug body ground, a second end of the third resistor and the second switch connected in series is connected to the first plug first connection confirmation end and the first end of the fourth resistor, respectively, and a second end of the fourth resistor is connected to the second plug first connection confirmation end;

when the second switch is turned on or off, the effective resistance values corresponding to the second plug control guide module are different, so that the discharging vehicle can confirm the connection state of the second plug and the charging vehicle according to the different effective resistance values.

12. The V2V control guidance circuit of claim 11, wherein the connection harness further comprises an S + line and an S-line;

the first electronic lock further comprises a third switch disposed on either the S + line or the S-line, the third switch configured to be controlled to be in a closed state when the first switch is held in a closed state by the first electronic lock;

the second electronic lock further comprises a fourth switch disposed on either the S + line or the S-line, the fourth switch being controlled to be in a closed state when the second switch is held in a closed state by the second electronic lock.

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