CN115556581A

CN115556581A - Vehicle, control guidance circuit and charging control method

Info

Publication number: CN115556581A
Application number: CN202110750510.0A
Authority: CN
Inventors: 廉玉波; 凌和平; 黄伟; 史建勇; 王鹏
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2023-01-03

Abstract

The invention discloses a vehicle, a control guidance circuit and a charging control method, wherein the vehicle comprises: the vehicle-end charging and stopping switch is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal is provided with a second detection point; the vehicle further comprises a vehicle controller, and the vehicle controller is used for controlling the vehicle to stop charging according to the second detection voltage of the second detection point when the vehicle-end charging stop switch is in a closed state. Therefore, the vehicle-end charging stop switch is actuated, and the charging can be stopped quickly, safely and reliably according to the hardware level of the second detection point after the actuation.

Description

Vehicle, control guidance circuit and charging control method

Technical Field

The invention relates to the technical field of vehicle charging, in particular to a vehicle, a control guidance circuit and a charging control method.

Background

In the current conductive charging system (such as GB/T18487.1) of the electric automobile, when charging is abnormal, the charging is stopped mainly through the action of an emergency stop switch of a charging pile, or a battery management system sends a charging stop message through a CAN communication line to stop the charging. To the former, CAN cause the harm to filling the output contactor in the electric pile, to the latter, there is the problem that it is long and CAN't stop filling when CAN communication line is unusual to consume time.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, a first object of the present invention is to provide a vehicle, which CAN implement a fast, safe and reliable charging stop through a vehicle-end charging stop switch, according to a hardware level of a second detection point after the vehicle-end charging stop switch is operated, effectively solve the problems of long time consumption for the charging stop through a CAN message and incapability of charging stop when a CAN communication line is abnormal, and cannot damage components in a power supply device.

A second objective of the present invention is to provide a control pilot circuit.

A third object of the present invention is to provide a charging control method.

A fourth object of the present invention is to provide another charging control method.

In order to achieve the above object, an embodiment of a first aspect of the invention provides a vehicle, including: the vehicle-end charging stop switch is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of a vehicle, and the vehicle-end first connection confirmation terminal is provided with a second detection point; the vehicle further comprises a vehicle controller, and the vehicle controller is used for controlling the vehicle to stop charging according to the second detection voltage of the second detection point when the vehicle-end charging stop switch is in a closed state.

According to the vehicle provided by the embodiment of the invention, the vehicle-end stop-charge switch is connected between the vehicle-end first connection confirmation terminal and the vehicle body ground of the vehicle, the second detection point is arranged on the vehicle-end first connection confirmation terminal, and the vehicle controller controls the vehicle to stop charging according to the second detection voltage of the second detection point when the vehicle-end stop-charge switch is in a closed state, so that the vehicle CAN be stopped quickly, safely and reliably through the action of the vehicle-end stop-charge switch and according to the hardware level of the second detection point after the action, the problems of long time consumption in stopping charging through a CAN message and incapability of stopping charging when a CAN communication line is abnormal are effectively solved, and components in power supply equipment cannot be damaged.

According to an embodiment of the invention, the vehicle further comprises: the vehicle-end charging resistor is connected with the vehicle-end charging switch in series, one end of the vehicle-end charging resistor, which is connected with the vehicle-end charging switch in series, is connected with the first vehicle-end connection confirmation terminal, and the other end of the vehicle-end charging resistor, which is connected with the vehicle-end charging switch in series, is connected with the vehicle-body ground of the vehicle.

According to one embodiment of the invention, the vehicle further comprises: the vehicle-end charging and discharging connection resistor is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle.

According to one embodiment of the invention, the vehicle further comprises: the vehicle end detection resistor and the vehicle end second connection confirmation terminal are connected, and the vehicle end detection resistor is connected between the vehicle end second connection confirmation terminal and a vehicle end preset power source.

In order to achieve the above object, a second embodiment of the present invention provides a control steering circuit, including: the first control guidance module is arranged on the power supply equipment, and the second control guidance module is arranged on the vehicle, wherein the first control guidance module comprises a power supply end detection resistor, a power supply end preset power supply and a power supply end first connection confirmation terminal; the second control guidance module comprises a vehicle-end parking and charging switch and a vehicle-end first connection confirmation terminal, the vehicle-end parking and charging switch is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal is provided with a second detection point.

According to the control guide circuit provided by the embodiment of the invention, the vehicle-end charging stop switch is connected between the vehicle-end first connection confirmation terminal and the vehicle body ground of the vehicle, the vehicle-end first connection confirmation terminal is provided with the second detection point, the power supply end detection resistor is connected between the power supply end first connection confirmation terminal and the power supply end preset power supply, and the power supply end first connection confirmation terminal is provided with the first detection point.

According to one embodiment of the invention, the second control guidance module further comprises: the vehicle-end charging resistor is connected with the vehicle-end charging switch in series, one end of the vehicle-end charging resistor, which is connected with the vehicle-end charging switch in series, is connected with the first vehicle-end connection confirmation terminal, and the other end of the vehicle-end charging resistor, which is connected with the vehicle-end charging switch in series, is connected with the vehicle-body ground of the vehicle.

According to one embodiment of the invention, the second control guidance module further comprises: the vehicle-end charging and discharging connection resistor is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle.

According to one embodiment of the invention, the second control guidance module further comprises: the vehicle end detection resistor, the vehicle end preset power supply and the vehicle end second connection confirmation terminal are connected between the vehicle end second connection confirmation terminal and the vehicle end preset power supply.

According to one embodiment of the invention, the first control guidance module further comprises: the power supply end stops to fill the switch, and the power supply end stops to fill the switch and the power supply end detects resistance and establishes ties, and the first connection of power supply end is confirmed the terminal to the one end connection after the power supply end stops to fill the switch and the power supply end detects resistance series connection, and the power supply end is predetermine the power in other end connection power supply.

According to one embodiment of the invention, the first control guidance module further comprises: the power supply end charging stopping resistor is connected with the power supply end charging stopping switch in parallel.

According to one embodiment of the invention, the first control guidance module further comprises: the charging and discharging device comprises a charging and discharging connecting switch, a first charging and discharging connecting resistor, a second charging and discharging connecting resistor and a power supply end second connection confirmation terminal, wherein the charging and discharging connecting switch is connected with the first charging and discharging connecting resistor in series, one end of the charging and discharging connecting switch connected with the first charging and discharging connecting resistor in series is connected with the power supply end first connection confirmation terminal, the other end of the charging and discharging connecting switch connected with the first charging and discharging connecting resistor in series is connected with a device ground of the power supply device, and the second charging and discharging connecting resistor is connected between the power supply end second connection confirmation terminal and the device ground of the power supply device.

According to an embodiment of the invention, the second control guidance module further comprises a vehicle controller, and the vehicle controller is configured to control the vehicle to stop charging according to the second detection voltage at the second detection point when the vehicle-end stop-charging switch is in a closed state.

In order to achieve the above object, an embodiment of a third aspect of the present invention provides a charge control method applied to the foregoing vehicle, the method including: acquiring a fault signal; controlling a vehicle-end charging and stopping switch to be in a closed state according to the fault signal; acquiring a second detection voltage of a second detection point; and controlling the vehicle to stop charging according to the second detection voltage.

According to the charging control method provided by the embodiment of the invention, the fault signal is obtained, the vehicle-end charging stop switch is controlled to be in a closed state according to the fault signal, the second detection voltage of the second detection point is obtained, and the vehicle is controlled to stop charging according to the second detection voltage, so that the vehicle-end charging stop switch acts, and the charging CAN be quickly, safely and reliably stopped according to the hardware level of the second detection point after the action, the problems of long time consumption and incapability of stopping charging when a CAN communication line is abnormal due to the CAN message are effectively solved, and the components in the power supply equipment cannot be damaged.

According to an embodiment of the invention, the method further comprises: acquiring a reset signal; and controlling the vehicle-end charging stop switch to be in a disconnected state according to the reset signal.

In order to achieve the above object, a fourth aspect of the present invention provides a charging control method, which is applied to a power supply apparatus and a vehicle, where the power supply apparatus and the vehicle include the aforementioned control guidance circuit, and the method includes: the vehicle controller acquires a fault signal, controls the vehicle-end charging stop switch to be in a closed state according to the fault signal, acquires a second detection voltage of a second detection point, and controls the vehicle to stop charging according to the second detection voltage; and the power supply equipment controller acquires a first detection voltage of the first detection point and controls the power supply equipment to stop supplying power according to the first detection voltage.

According to the charging control method provided by the embodiment of the invention, the vehicle controller acquires the fault signal, controls the vehicle-end charging stop switch to be in a closed state according to the fault signal, acquires the second detection voltage of the second detection point, controls the vehicle to stop charging according to the second detection voltage, and the power supply equipment controller acquires the first detection voltage of the first detection point and controls the power supply equipment to stop supplying power according to the first detection voltage.

According to one embodiment of the present invention, when the second detection voltage is changed from the first voltage to the second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply apparatus to stop supplying power.

According to one embodiment of the present invention, when the second detection voltage is changed from the first voltage to the second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply terminal stop switch to be in the off state and controls the power supply apparatus to stop supplying power.

According to one embodiment of the invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, and the power supply equipment controller controls the power supply equipment to stop supplying power.

According to one embodiment of the invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, the power supply equipment controller controls the power supply terminal stop charging switch to be in an off state firstly, and controls the power supply equipment to stop supplying power when the first detection voltage is changed from the third voltage to the second voltage.

According to one embodiment of the invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, the power supply equipment controller controls the power supply terminal stop charging switch to be in an off state firstly, and controls the power supply equipment to stop supplying power when the first detection voltage is changed from the third voltage to the fourth voltage.

According to an embodiment of the invention, the method further comprises: and the vehicle controller acquires the reset signal and controls the vehicle-end charging stop switch to be in a disconnected state according to the reset signal.

According to an embodiment of the invention, the method further comprises: the vehicle controller acquires a reset signal and controls the vehicle-end charging and stopping switch to be in a disconnected state according to the reset signal; and the power supply terminal controller controls the power supply terminal charging stop switch to be in a closed state according to the first detection voltage.

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

1-3 are schematic structural views of a vehicle according to some embodiments of the present invention;

FIG. 4 is a schematic structural diagram of a vehicle according to another embodiment of the present invention;

fig. 5 is a flowchart of a charge control method applied to a vehicle according to a first embodiment of the invention;

6-11 are schematic structural diagrams of control steering circuits according to some embodiments of the present invention;

12-17 are schematic structural diagrams of control steering circuits according to further embodiments of the present invention;

fig. 18 is a flowchart of a charging control method applied to a power supply apparatus and a vehicle according to a first embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the 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 functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

A vehicle, a control guidance circuit, and a charge control method according to an embodiment of the present invention will be described below with reference to the drawings.

Fig. 1 is a schematic structural view of a vehicle according to a first embodiment of the present invention, and referring to fig. 1, the vehicle 200 includes: a vehicle-end stop-charge switch S3, a vehicle-end first connection confirmation terminal CC1, and a vehicle controller 210.

The vehicle-end charging and stopping switch S3 is connected between a vehicle-end first connection confirmation terminal CC1 and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal CC1 is provided with a second detection point 2; the vehicle controller 210 is configured to control the vehicle 200 to stop charging according to the second detection voltage at the second detection point 2 when the vehicle-end stop-charging switch S3 is in a closed state.

Optionally, the vehicle-end charging stop switch S3 is a normally open switch.

Specifically, the vehicle-end stop-charge switch S3 is taken as a normally open switch as an example. When charging is needed, the power supply port of the power supply device is connected to the charging port of the vehicle 200, then the power supply device controller of the power supply device enters a charging process after receiving a charging start signal and determining that the power supply device is successfully connected with the vehicle 200 based on the existing mode, and at this time, the second detection voltage of the second detection point 2 is the first voltage. During the charging process, the vehicle controller 210 obtains a fault signal, for example, abnormal emergency situations such as thermal runaway, smoke generation, fire occurrence, etc. occur in the power supply equipment or the vehicle 200, or abnormal voltage, current, charging power, etc. of the power supply equipment or the vehicle 200, and the fault signal may be sent to the vehicle controller 210 by the charging management platform, the virtual key of the charging APP, or the physical key on the vehicle 200. After the vehicle controller 210 receives the fault signal, the vehicle-end stop-charge switch S3 is controlled to be in a closed state according to the fault signal, and a second detection voltage at the second detection point 2 is obtained, at this time, the second detection voltage changes, for example, the first voltage changes to 0, and the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage to stop charging the vehicle 200.

For example, in the example shown in fig. 1, the vehicle 200 may further include a power battery 240, and charge circuit control switches K5 and K6, wherein the charge circuit control switch K5 is connected between a first end of the power battery 240 and a positive terminal DC + of the direct voltage of the vehicle 200, the charge circuit control switch K6 is connected between a second end of the power battery 240 and a negative terminal DC-of the direct voltage of the vehicle 200, and the vehicle controller 210 may control the charge circuit control switches K5 and K6 to be in an open state when the charge circuit is cut off according to the second detected voltage (during charging, the vehicle controller 210 controls the charge circuit control switches K5 and K6 to be in a closed state to supply power to the vehicle 200).

It should be noted that the first voltage may be determined according to actual situations, as long as it is possible to distinguish when the charging needs to be stopped, and the specific situation is not limited here.

It can be understood that, after the power supply port of the power supply device is successfully connected to the charging port of the vehicle, the power supply end first connection confirmation terminal is correspondingly connected to the vehicle end first connection confirmation terminal CC1, and the voltages of the two terminals are the same, so that the power supply device may also determine whether a charging abnormality occurs currently according to the voltage on the power supply end first connection confirmation terminal, and if so, the power supply device may also stop supplying power, that is, disconnect the power supply loop, so as to stop supplying power when the vehicle 200 is not timely or fails to cut off the charging loop, so as to further protect the vehicle 200.

In the embodiment, the vehicle-end charging stop switch acts, and the charging CAN be stopped quickly, safely and reliably according to the hardware level of the second detection point after the action, so that the problems of long consumed time and incapability of stopping charging when a CAN communication line is abnormal due to the fact that the charging stop is realized through a CAN message are effectively solved, and components in the power supply equipment cannot be damaged.

In some embodiments of the present invention, as shown with reference to fig. 2, the vehicle 200 may further include: the vehicle-end charging resistor Ry is connected with the vehicle-end charging switch S3 in series, one end of the vehicle-end charging resistor Ry connected with the vehicle-end charging switch S3 in series is connected with the first vehicle-end connection confirmation terminal CC1, and the other end of the vehicle-end charging resistor Ry connected with the vehicle-end charging switch S3 in series is connected with the vehicle body ground of the vehicle. That is to say, a vehicle-end charging resistor Ry may be connected in series to the vehicle-end charging switch S3, when the vehicle controller 210 receives the fault signal to control the vehicle-end charging switch S3 to be closed, at this time, the equivalent resistance between the vehicle body ground of the vehicle 200 and the second detection point 2 is the resistance of the vehicle-end charging resistor Ry, the second detection voltage changes, the value of the second detection voltage is directly related to the resistance of the vehicle-end charging resistor Ry, and the vehicle controller 210 may control the vehicle 200 to stop charging according to the value of the second detection voltage. The method can also achieve rapid, safe, and reliable charging stop, and the specific process is the same as the example process shown in fig. 1, except that the second detection voltage is different, and is not described here again.

In some embodiments of the present invention, as shown with reference to FIG. 3, the vehicle 200 may further include: the vehicle-end charging/discharging connection resistor R4 is connected between the vehicle-end first connection confirmation terminal CC1 and the vehicle body ground of the vehicle, and the vehicle-end charging/discharging connection resistor R4 is connected between the vehicle-end first connection confirmation terminal CC1 and the vehicle body ground.

Further, with continued reference to fig. 3, the vehicle 200 may further include: the vehicle end detection resistor R5 is connected between the vehicle end second connection confirmation terminal CC2 and the vehicle end preset power supply U2, and the vehicle end detection resistor R5 is connected between the vehicle end second connection confirmation terminal CC2 and the vehicle end preset power supply U2. The vehicle-end second connection confirmation terminal CC2 may be provided with a third detection point 3, and the vehicle controller 210 may obtain a third detection voltage at the third detection point 3, and determine the connection state of the vehicle 200 according to the third detection voltage.

In order to make the present application more clear to those skilled in the art, the following description may be made with reference to the specific example shown in fig. 4, but fig. 4 is not intended to limit the present application specifically, for example, the structure of the power supply device is different from that shown in fig. 4.

It should be noted that, in the example shown in fig. 4, the power supply apparatus 100 may include a power supply apparatus body 120 and a charging plug 130 connected to the power supply apparatus body 120, wherein the charging and discharging connection switch S, the first charging and discharging connection resistor R2, and the second charging and discharging connection resistor R3 are all disposed in the charging plug 130, and the power supply end detection resistor R1 is disposed in the power supply apparatus body 120. Accordingly, the vehicle 200 may include a vehicle body 220 and a charging socket 230 connected to the vehicle body, and the vehicle end charging and discharging resistance Ry, the vehicle end charging and discharging switch S3, the vehicle end charging and discharging connection resistance R4, and the vehicle end detection resistance R5 are all disposed in the vehicle body 220. In addition, the power supply equipment power module 140 and the power supply circuit control switches K1 and K2 are provided in the power supply equipment body 120, and the power battery 240 and the charging circuit control switches K5 and K6 are provided in the vehicle body 220. It should be noted that the power supply device body 120 and the charging plug 130 may be connected by a charging cable to be suitable for charging at different distances, the charging socket 230 may be directly disposed on the vehicle body 220, and the power supply device 100 may be a charging pile or the like. In this example, the charging and discharging connection switch S is a normally closed switch, and the vehicle-end charging stop switch S3 is a normally open switch.

Referring to fig. 4, when charging is required, the charging plug 130 is connected to the charging socket 230, then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and assuming that the first detection voltage is 4V, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230 at this time, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state, and at the same time, the vehicle controller 210 obtains a third detection voltage at a third detection point 3, assuming that the third detection voltage is 6V, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230 at this time, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, and at this time, a charging process is started, and the power supply device power module 140 starts to supply power to the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end stop-charging switch S3 is controlled to be in a closed state, the vehicle-end stop-charging resistor Ry is connected in parallel with the vehicle-end charging and discharging connection resistor R4, and the second detection voltage at the second detection point 2 changes, if the second detection voltage changes from 4V to 2V (if no vehicle-end stop-charging resistor Ry exists, it changes to 0V), at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the charging of the vehicle 200 is stopped. It can be understood that, since the first detection voltage at the first detection point 1 is the same as the second detection voltage at the second detection point 2, the first detection voltage is also changed from 4V to 2V (to 0V if there is no vehicle-end stop charging resistor Ry), at this time, the power supply device controller 110 may determine that the charging is abnormal according to the first detection voltage, and control the power supply device 100 to stop supplying power to the vehicle 200 after determining that the charging is abnormal, that is, disconnect the power supply loop, that is, control the power supply loop to control the switches K1 and K2 to be in an off state, so as to stop supplying power when the vehicle controller 210 does not timely or fails to control the vehicle 200 to stop charging, thereby further protecting the vehicle 200.

Further, after the vehicle controller 210 controls the vehicle 200 to stop charging, the vehicle controller 210 further obtains a reset signal, and after obtaining the reset signal, controls the vehicle-end charging stop switch S3 to be in an off state according to the reset signal, and obtains a second detection voltage at the second detection point 2, at this time, the second detection voltage is recovered from 2V to 4V (if there is no vehicle-end charging stop Ry, the second detection voltage is recovered from 0V to 4V), and the vehicle controller 210 controls the vehicle 200 to recover charging, that is, controls the charging loop control switches K5 and K6 to be in a closed state. It can be understood that, after the power supply device controller 110 controls the power supply device 100 to stop supplying power according to the first detection voltage at the first detection point 1, the first detection voltage at the first detection point 1 may be further obtained, and when the first detection voltage is recovered from 2V to 4V (if there is no vehicle-end stop charging resistor Ry, the first detection voltage is recovered from 0V to 4V), the power supply device 100 is controlled to recover supplying power, that is, the power supply loop control switches K1 and K2 are controlled to be in a closed state.

Therefore, the vehicle-end stop-charge switch is arranged on the vehicle side, the vehicle-end stop-charge switch is controlled to act, and charging control is carried out according to the second detection voltage of the second detection point after the action, so that quick, safe and reliable stop-charge CAN be realized.

Further, an embodiment of the present invention also provides a charging control method, which is applied to the foregoing vehicle, and as shown in fig. 5, the charging control method may include the following steps:

step S110, a fault signal is acquired.

And step S111, controlling the vehicle-end charging stop switch to be in a closed state according to the fault signal.

Step S112, a second detection voltage of the second detection point is acquired.

And step S113, controlling the vehicle to stop charging according to the second detection voltage.

According to some embodiments of the invention, the charge control method may further include: acquiring a reset signal; and controlling the vehicle-end charging stop switch to be in a disconnected state according to the reset signal.

It should be noted that, for the description of the charging control method applied to the vehicle, reference may be made to the description of the vehicle, and specific description thereof is omitted here.

Fig. 6 is a schematic structural diagram of a control pilot circuit according to a first embodiment of the present invention, and referring to fig. 6, the control pilot circuit includes a first control pilot module 310 and a second control pilot module 320, the first control pilot module 310 is disposed on the power supply apparatus 100, and the second control pilot module 320 is disposed on the vehicle 200.

The first control guidance module 310 includes a power supply end detection resistor R1, a power supply end preset power supply U1, and a power supply end first connection confirmation terminal CC1, where the power supply end detection resistor R1 is connected between the power supply end first connection confirmation terminal CC1 and the power supply end preset power supply U1, and the power supply end first connection confirmation terminal CC1 is provided with a first detection point 1; the second control guidance module 320 includes a vehicle-end stop-charge switch S3 and a vehicle-end first connection confirmation terminal CC1, the vehicle-end stop-charge switch S3 is connected between the vehicle-end first connection confirmation terminal CC1 and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal CC1 is provided with a second detection point 2.

Optionally, referring to fig. 6, the second control guidance module 320 may further include a vehicle controller 210, and the vehicle controller 210 is configured to control the vehicle 200 to stop charging according to the second detection voltage at the second detection point 2 when the vehicle-end stop-charging switch S3 is in a closed state. The first control guidance module 310 may further include a power supply device controller 110, and the power supply device controller 110 is configured to control the power supply device 100 to stop supplying power according to the first detection voltage of the first detection point 1. It is understood that the power supply apparatus controller 110 may be a controller inside the power supply apparatus 100 or a controller integrated in the power supply apparatus 100, and the vehicle controller 210 may be a controller inside the vehicle 200 or a controller integrated in the vehicle 200, which may be specifically selected according to actual situations and is not limited herein.

In addition, the power supply device 100 may further include a power supply device power module 140, and power supply loop control switches K1 and K2, where the power supply loop control switch K1 is connected between a first end of the power supply device power module 140 and a positive terminal DC + of the direct current voltage of the power supply device 100, the power supply loop control switch K2 is connected between a second end of the power supply device power module 140 and a negative terminal DC-of the direct current voltage of the power supply device 100, and the power supply device controller 110 may control on/off of the power supply loop by controlling on/off of the power supply loop control switches K1 and K2; the vehicle 200 may further include a power battery 240, and charge loop control switches K5 and K6, wherein the charge loop control switch K5 is connected between a first end of the power battery 240 and a positive terminal DC + of the direct voltage of the vehicle 200, the charge loop control switch K6 is connected between a second end of the power battery 240 and a negative terminal DC-of the direct voltage of the vehicle 200, and the vehicle controller 210 may control the on/off of the charge loop by controlling the on/off of the charge loop control switches K5 and K6.

Specifically, the vehicle-end stop-charge switch S3 is taken as a normally open switch as an example. Referring to fig. 6, when charging is required, the power supply port of the power supply device 100 is connected to the charging port of the vehicle 200, at this time, the power supply end first connection confirmation terminal CC1 and the vehicle end first connection confirmation terminal CC1 are correspondingly connected, the positive terminal DC + of the direct current voltage of the power supply device 100 is connected to the positive terminal DC + of the direct current voltage of the vehicle 200, and the negative terminal DC-of the direct current voltage of the power supply device 100 is connected to the negative terminal DC-of the direct current voltage of the vehicle 200. Then, after the power supply device controller 110 receives the charging start signal and determines that the power supply device 100 is successfully connected to the vehicle 200 based on the existing manner, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state to supply power to the vehicle 200, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state to charge the vehicle 200, a charging process is entered, the power supply device power module 140 starts to charge the power battery 240, at this time, under the action of the power supply end preset power supply U1, the second detection voltage at the second detection point 2 is pulled up, and the value of the second detection voltage is the voltage of the power supply end preset power supply U1.

In the charging process, when abnormality occurs in the power supply device 100 or the vehicle 200, such as emergency situations like thermal runaway, smoke generation, fire generation, etc., or abnormality in voltage, current, charging power, etc., a fault signal may be sent to the vehicle controller 210 by the charging management platform, the virtual key of the charging APP, or the physical key on the vehicle, etc. After receiving the fault signal, the vehicle controller 210 controls the vehicle-end charging-stop switch S3 to be in a closed state, and the second detection voltage at the second detection point 2 changes, for example, the second detection voltage changes from the voltage of the power supply-end preset power supply U1 to 0, at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, controls the charging loop control switches K5 and K6 to be in an open state, so as to stop charging the vehicle 200. Meanwhile, the power supply device controller 110 may determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, and at this time, the power supply device controller 110 may also control the power supply device 100 to stop supplying power, that is, disconnect the power supply loop, that is, control the power supply loop to control the switches K1 and K2 to be in an off state, so as to stop supplying power when the vehicle controller 210 does not timely or fails to control the vehicle 200 to stop charging, thereby further protecting the vehicle 200.

In the embodiment, the vehicle-end charging stop switch acts, and the vehicle and the power supply equipment CAN be quickly, safely and reliably stopped and charged according to the hardware levels of the second detection point and the first detection point after the action, so that the problems that the charging stop is long in time consumption and the charging cannot be stopped when a CAN communication line is abnormal due to the CAN message are effectively solved, and the components in the power supply equipment cannot be damaged.

According to some embodiments of the present invention, as shown with reference to fig. 7, the second control guidance module 320 may further include: the vehicle-end charging resistor Ry is connected with the vehicle-end charging switch S3 in series, one end of the vehicle-end charging resistor Ry connected with the vehicle-end charging switch S3 in series is connected with the first vehicle-end connection confirmation terminal CC1, and the other end of the vehicle-end charging resistor Ry connected with the vehicle-end charging switch S3 in series is connected with the vehicle body ground of the vehicle. That is, a vehicle end charging resistor Ry may be connected in series to the vehicle end charging switch S3, when the vehicle controller 210 receives the fault signal to control the vehicle end charging switch S3 to be closed, an equivalent resistance value between the vehicle body ground of the vehicle 200 and the second detection point 2 is a resistance value of the vehicle end charging resistor Ry, the second detection voltage changes, a value of the second detection voltage is directly related to a resistance value of the vehicle end charging resistor Ry, and the vehicle controller 210 may control the vehicle 200 to stop charging according to the value of the second detection voltage. This way, the charging may be stopped quickly, safely, and reliably, and the specific process is the same as the example process shown in fig. 6, except that the detected voltage is different, and is not described herein again.

According to some embodiments of the invention, as shown with reference to fig. 8 or 9, the first control guidance module 310 may further include: the power supply end stops to fill switch S2, and power supply end stops to fill switch S2 and power supply end detection resistance R1 and establishes ties, and the first connection of power supply end confirms terminal CC1 is connected to the one end that power supply end stopped to fill switch S2 and power supply end detection resistance R1 after establishing ties, and the power supply end presetting power U1 is connected to the other end. Alternatively, the power supply terminal stop-charging switch S2 may be a normally closed switch.

It should be noted that, in the example shown in fig. 8, the power supply apparatus controller 110 may control the power supply apparatus 100 to stop supplying power to the vehicle 200 and control the power supply terminal stop charging switch S2 to be in the open state after determining that the vehicle terminal stop charging switch S3 is in the closed state based on the first detection voltage at the first detection point 1.

Specifically, the vehicle-end charging stop switch S3 is a normally open switch, and the power supply-end charging stop switch S2 is a normally closed switch. Referring to fig. 8, when charging is required, the power supply port of the power supply apparatus 100 is connected to the charging port of the vehicle 200, and at this time, the power supply end first connection confirmation terminal CC1 and the vehicle end first connection confirmation terminal CC1 are correspondingly connected. Then, after the power supply device controller 110 receives the charging start signal and determines that the power supply device 100 is successfully connected to the vehicle 200 based on the existing manner, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, and a charging process is started, at this time, under the action of the power supply end preset power supply U1, the second detection voltage of the second detection point 2 is pulled high, and the value of the second detection voltage is the voltage of the power supply end preset power supply U1.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging-stop switch S3 is controlled to be in the closed state, the second detection voltage at the second detection point 2 changes, and if the second detection voltage changes from the voltage of the power supply-end preset power supply U1 to 0, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in the open state, and the vehicle 200 is stopped to be charged. Meanwhile, the power supply equipment controller 110 may determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, at this time, the power supply equipment controller 110 controls the power supply terminal charging stop switch S2 to be in a disconnected state, and controls the power supply equipment to stop supplying power, that is, to disconnect the power supply loop, that is, controls the power supply loop to control the switches K1 and K2 to be in a disconnected state, so as to stop supplying power when the vehicle controller 210 does not timely or fails to control the vehicle 200 to stop charging, thereby further protecting the vehicle 200. It can be understood that, since the power supply terminal charging stop switch S2 is in the off state, even if the vehicle terminal charging stop switch S3 is controlled to be in the off state by mistake, the charging state is not performed, and safety is ensured.

In the embodiment, the vehicle-end charging stop switch acts, and the vehicle and the power supply equipment CAN be quickly, safely and reliably stopped and charged according to the hardware levels of the second detection point and the first detection point after the action, so that the problems that the charging stop is long in time consumption and the charging stop cannot be carried out when a CAN communication line is abnormal due to the fact that the CAN message is used for achieving the charging stop are effectively solved, damage to components in the power supply equipment cannot be caused, and meanwhile, the situation that the charging stop is triggered by mistake CAN be avoided.

It should be noted that, in the example shown in fig. 9, the power supply device controller 110 may control the power supply terminal charging stop switch S2 to be in the off state after determining that the vehicle terminal charging stop switch S3 is in the on state according to the first detection voltage at the first detection point 1, and may further control the power supply device 100 to stop supplying power to the vehicle 200 after determining that the power supply terminal charging stop switch S2 is in the off state according to the first detection voltage at the first detection point 1.

Specifically, the vehicle-end charging stop switch S3 is a normally open switch, and the power supply-end charging stop switch S2 is a normally closed switch. Referring to fig. 9, when charging is required, the power supply port of the power supply apparatus 100 is connected to the charging port of the vehicle 200, and at this time, the power supply end first connection confirmation terminal CC1 and the vehicle end first connection confirmation terminal CC1 are correspondingly connected. Then, after the power supply device controller 110 receives the charging start signal and determines that the power supply device is successfully connected with the vehicle based on the existing mode, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in the closed state, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in the closed state, and a charging process is started, at this time, under the action of the power supply end preset power supply U1, the second detection voltage of the second detection point 2 is pulled high, and the value of the second detection voltage is the voltage of the power supply end preset power supply U1.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, and if the second detection voltage is changed from the voltage of the power supply end preset power supply U1 to a certain voltage (not 0V), at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle 200 is stopped to be charged. Meanwhile, the power supply equipment controller 110 can determine that charging abnormality occurs by acquiring the first detection voltage of the first detection point 1, at this time, the power supply equipment controller 110 controls the power supply terminal charging stop switch S2 to be in a disconnected state, the first detection voltage is changed from non-0V to 0V, the power supply equipment controller 110 acquires the first detection voltage of the first detection point 1, and controls the power supply equipment to stop supplying power according to the first detection voltage, namely, to disconnect the power supply loop, namely, to control the power supply loop to control the switches K1 and K2 to be in a disconnected state, so that power supply is stopped when the vehicle controller 210 does not timely or fails to control the vehicle 200 to stop charging, thereby further protecting the vehicle. It can be understood that, in this example, since the power supply-side charging stop switch S2 is in the off state, even if the vehicle-side charging stop switch S3 is erroneously controlled to be in the off state, the charging state is not performed, and safety is ensured.

In the embodiment, the vehicle-end charging stop switch acts, and the vehicle and the power supply equipment CAN be quickly, safely and reliably stopped and charged according to the hardware levels of the second detection point and the first detection point after the action, so that the problems that the time consumption is long when the charging stop is realized through a CAN message and the charging stop cannot be realized when a CAN communication line is abnormal are effectively solved, the components in the power supply equipment cannot be damaged, and meanwhile, the condition of false triggering after the charging stop CAN be avoided.

According to some embodiments of the invention, as shown with reference to fig. 10 or 11, the first control guidance module 310 may further include: the power supply end charging stopping resistor R7 is connected in parallel with the power supply end charging stopping switch S2 through the power supply end charging stopping resistor R7.

It should be noted that, in the example shown in fig. 10, the power supply apparatus controller 110 may control the power supply apparatus 100 to stop supplying power to the vehicle 200 and control the power supply end stop charging switch S2 to be in the open state after determining that the vehicle end stop charging switch S3 is in the closed state according to the first detection voltage at the first detection point 1.

Specifically, the vehicle-end charging stop switch S3 is a normally open switch, and the power supply-end charging stop switch S2 is a normally closed switch. Referring to fig. 10, when charging is required, the power supply port of the power supply apparatus 100 is connected to the charging port of the vehicle 200, and at this time, the power supply end first connection confirmation terminal CC1 and the vehicle end first connection confirmation terminal CC1 are correspondingly connected. Then, after the power supply device controller 110 receives the charging start signal and determines that the power supply device is successfully connected with the vehicle based on the existing mode, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in the closed state, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in the closed state, and a charging process is started, at this time, under the action of the power supply end preset power supply U1, the second detection voltage of the second detection point 2 is pulled high, and the value of the second detection voltage is the voltage of the power supply end preset power supply U1.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, and if the second detection voltage is changed from the voltage of the power supply end preset power supply U1 to 0, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle 200 is stopped to be charged. Meanwhile, the power supply equipment controller 110 may determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, at this time, the power supply equipment controller 110 controls the power supply terminal charging stop switch S2 to be in an off state, and controls the power supply equipment 100 to stop supplying power, that is, to disconnect the power supply loop, that is, controls the power supply loop to control the switches K1 and K2 to be in an off state, so as to stop supplying power when the vehicle controller 210 does not timely or fails to control the vehicle 200 to stop charging, thereby further protecting the vehicle 200. It can be understood that, since the power supply terminal charging stop switch S2 is in the off state, even if the vehicle terminal charging stop switch S3 is controlled to be in the off state by mistake, the charging state is not performed, and the safety is ensured.

It should be noted that, in the example shown in fig. 11, the power supply device controller 110 may control the power supply terminal charging stop switch S2 to be in the off state after determining that the vehicle terminal charging stop switch S3 is in the on state according to the first detection voltage at the first detection point 1, and may further control the power supply device 100 to stop supplying power to the vehicle 200 after determining that the power supply terminal charging stop switch S2 is in the off state according to the first detection voltage at the first detection point 1.

Specifically, the vehicle-end charging stop switch S3 is a normally open switch, and the power supply-end charging stop switch S2 is a normally closed switch. Referring to fig. 11, when charging is required, the power supply port of the power supply apparatus 100 is connected to the charging port of the vehicle 200, and at this time, the power supply end first connection confirmation terminal CC1 and the vehicle end first connection confirmation terminal CC1 are correspondingly connected. Then, after the power supply device controller 110 receives the charging start signal and determines that the power supply device is successfully connected with the vehicle based on the existing mode, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in the closed state, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in the closed state, and a charging process is started, at this time, under the action of the power supply end preset power supply U1, the second detection voltage of the second detection point 2 is pulled high, and the value of the second detection voltage is the voltage of the power supply end preset power supply U1.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, and if the second detection voltage is changed from the voltage of the power supply end preset power supply U1 to a certain voltage (not 0V), at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle 200 is stopped to be charged. Meanwhile, the power supply equipment controller 110 can determine that charging abnormality occurs by acquiring a first detection voltage of a first detection point 1, at this time, the power supply equipment controller 110 controls the power supply terminal charging stop switch S2 to be in a disconnected state, the first detection voltage is changed from non-0V to another non-0V, the power supply equipment controller 110 acquires the first detection voltage of the first detection point 1, and controls the power supply equipment to stop supplying power according to the first detection voltage, namely, a power supply loop is disconnected, namely, the power supply loop control switches K1 and K2 are controlled to be in a disconnected state, so that power supply is stopped when the vehicle controller 210 does not timely or cannot control the vehicle 200 to stop charging, and further protection is realized on the vehicle 200.

In some embodiments of the present invention, referring to fig. 12-17, the second control guidance module 320 may further include: the vehicle-end charging/discharging connection resistor R4 is connected between the vehicle-end first connection confirmation terminal CC1 and the vehicle body ground of the vehicle, and the vehicle-end charging/discharging connection resistor R4 is connected between the vehicle-end first connection confirmation terminal CC1 and the vehicle body ground.

Further, the second control guidance module 320 may further include: the vehicle end detection resistor R5, the vehicle end preset power supply U2 and the vehicle end second connection confirmation terminal CC2 are connected, and the vehicle end detection resistor R5 is connected between the vehicle end second connection confirmation terminal CC2 and the vehicle end preset power supply U2. The vehicle-end second connection confirmation terminal CC2 may be provided with a third detection point 3, and the vehicle controller 210 may obtain a third detection voltage at the third detection point 3, and determine the connection state of the vehicle 200 according to the third detection voltage.

Further, the first control guidance module 310 may further include: the charging and discharging device comprises a charging and discharging connecting switch S, a first charging and discharging connecting resistor R2, a second charging and discharging connecting resistor R3 and a power supply end second connection confirmation terminal CC2, wherein the charging and discharging connecting switch S is connected with the first charging and discharging connecting resistor R2 in series, one end of the charging and discharging connecting switch S, which is connected with the first charging and discharging connecting resistor R2 in series, is connected with the power supply end first connection confirmation terminal CC1, the other end of the charging and discharging connecting switch S is connected with the equipment ground of the power supply equipment, and the second charging and discharging connecting resistor R3 is connected between the power supply end second connection confirmation terminal CC2 and the equipment ground of the power supply equipment.

It should be noted that the power supply device 100 may include a power supply device body 120 and a charging plug 130 connected to the power supply device body 120, the power supply end detection resistor R1, the power supply end preset power source U1, the power supply end stop switch S2, and the power supply end stop charging resistor R7 in the first control guidance module 310 may be disposed in the power supply device body 120, and the charge and discharge connection switch S, the first charge and discharge connection resistor R2, and the second charge and discharge connection resistor R3 may be disposed in the charging plug 130. Accordingly, the vehicle may include a vehicle body 220 and a charging socket 230 connected to the vehicle body, and the vehicle end stop switch S3, the vehicle end stop resistance Ry, the vehicle end charge-discharge connection resistance R4, the vehicle end detection resistance R5, and the vehicle end preset power source U2 in the second control guidance module 320 may be disposed at the vehicle body 220. In addition, the power supply equipment power module 140 and the power supply circuit control switches K1 and K2 are provided in the power supply equipment body 120, and the power battery 240 and the charging circuit control switches K5 and K6 are provided in the vehicle body 220. Power supply unit body 120 and charging plug 130 accessible charging cable link to each other to be applicable to the charging of different distances, charging socket 230 can directly set up on vehicle body 220, and power supply unit 100 can be for filling electric pile etc..

In order to make the present application more clear to those skilled in the art, the following description will be made with reference to specific examples shown in fig. 12 to 17, in which the charge/discharge connection switch S and the ground-side charging switch S2 are normally closed switches, and the vehicle-side charging switch S3 is a normally open switch.

As a first example, referring to fig. 12, when charging is required, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (e.g., 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detection point 2 is the same as the first detection voltage at the first detection point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and if the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging-stop switch S3 is controlled to be in the closed state, the second detection voltage at the second detection point 2 changes, for example, the second detection voltage changes from the first voltage (for example, 4V) to the second voltage (for example, 0V), and at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in the open state, and the vehicle 200 is stopped being charged. Meanwhile, the first detection voltage is also changed from the first voltage (such as 4V) to the second voltage (such as 0V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage of the first detection point 1, at this time, the power supply device controller 210 can control the power supply device to stop supplying power, namely, the power supply loop is disconnected, namely, the power supply loop control switches K1 and K2 are controlled to be in a disconnected state, so that power supply is stopped when the vehicle controller 210 does not timely or cannot control the vehicle to stop charging, and further protection is achieved for the vehicle.

Further, after the vehicle 200 stops charging, the vehicle controller 210 further acquires a reset signal, and after the reset signal is acquired, controls the vehicle-end charging-stop switch S3 to be in an off state according to the reset signal, and acquires a second detection voltage at the second detection point 2, where the second detection voltage is recovered from a second voltage (e.g., 0V) to a first voltage (e.g., 4V), and the vehicle controller 210 controls the vehicle to recover charging, that is, controls the charging loops to control the switches K5 and K6 to be in a closed state. Meanwhile, the first detection voltage is also restored to the first voltage (e.g. 4V) from the second voltage (e.g. 0V), the power supply device controller 110 may determine that charging is restored according to the first detection voltage at the first detection point 1, at this time, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state, and the power supply device power module 140 starts to charge the power battery 240.

Therefore, the vehicle-end stop-charge switch is arranged on the vehicle side, the vehicle-end stop-charge switch is controlled to act, and the stop-charge can be quickly, safely and reliably carried out according to the hardware levels of the first detection point and the second detection point after the action.

As a second example, referring to fig. 13, when charging is required, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (e.g., 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detecting point 2 is the same as the first detection voltage at the first detecting point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and assuming that the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging-stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 changes, for example, the second detection voltage changes from the first voltage (for example, 4V) to a third voltage (for example, 2V), and at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and charging of the vehicle 200 is stopped. Meanwhile, the first detection voltage is also changed from the first voltage (e.g. 4V) to a third voltage (e.g. 2V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, and at this time, the power supply device controller 210 can control the power supply device to stop supplying power, i.e. disconnect the power supply loop, i.e. control the power supply loop control switches K1 and K2 to be in an off state, so as to stop supplying power when the vehicle controller 210 does not timely or fails to control the vehicle to stop charging, thereby further protecting the vehicle.

Further, after the vehicle 200 stops charging, the vehicle controller 210 further obtains a reset signal, and after obtaining the reset signal, controls the vehicle-end charging stop switch S3 to be in an off state according to the reset signal, and obtains a second detection voltage at the second detection point 2, at this time, the second detection voltage is recovered from a third voltage (e.g. 2V) to the first voltage (e.g. 4V), and the vehicle controller 210 controls the vehicle to recover charging, that is, controls the charging loop control switches K5 and K6 to be in a closed state. Meanwhile, the first detection voltage is also restored to the first voltage (e.g., 4V) from the third voltage (e.g., 2V), the power supply device controller 110 can determine that charging is restored according to the first detection voltage at the first detection point 1, at this time, the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state, and the power supply device power module 140 starts to charge the power battery 240.

Therefore, the vehicle-end stop-charge switch is arranged on the vehicle side, the vehicle-end stop-charge switch is controlled to act, and the stop-charge can be rapidly, safely and reliably carried out according to the hardware levels of the first detection point and the second detection point after the action.

As a third example, referring to fig. 14, when charging is required, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (e.g., 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detecting point 2 is the same as the first detection voltage at the first detecting point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and assuming that the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, for example, the second detection voltage is changed from the first voltage (for example, 4V) to the second voltage (for example, 0V), at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle 200 is stopped to be charged. Meanwhile, the first detection voltage is also changed from the first voltage (such as 4V) to the second voltage (such as 0V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage of the first detection point 1, at this time, the power supply device controller 210 can control the power supply terminal charging stop switch S2 to be in a disconnected state, and control the power supply device to stop supplying power, that is, to disconnect the power supply loop, that is, to control the power supply loop to control the switches K1 and K2 to be in a disconnected state, so that power supply is stopped when the vehicle controller 210 does not timely or fails to control the vehicle to stop charging, thereby further protecting the vehicle.

It should be noted that, in this example, since the power supply terminal charging stop switch S2 is in the off state, when power supply is resumed, the power supply terminal charging stop switch S2 needs to be controlled to be in the on state first, and then a charging resumption process is performed, that is, the vehicle controller 210 controls the vehicle terminal charging stop switch S3 to be in the off state first, obtains the second detection voltage of the second detection point 2, controls the vehicle charging according to the second detection voltage, and simultaneously, the power supply device controller 110 controls the power supply device to charge the vehicle according to the first detection voltage of the first detection point 1. By the method, the problem that the power supply is recovered due to the fact that the vehicle-end charging stop switch S3 is triggered by mistake when the abnormity does not disappear can be solved.

As a fourth example, referring to fig. 15, when charging is needed, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (for example, 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detecting point 2 is the same as the first detection voltage at the first detecting point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and if the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging-stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 changes, for example, the second detection voltage changes from the first voltage (for example, 4V) to a third voltage (for example, 2V), and at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and charging of the vehicle is stopped. Meanwhile, the first detection voltage is also changed from the first voltage (e.g. 4V) to a third voltage (e.g. 2V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, at this time, the power supply device controller 210 first controls the power supply terminal charging stop switch S2 to be in a disconnected state, the first detection voltage at the first detection point 1 is changed from the third voltage (e.g. 2V) to the second voltage (e.g. 0V), and then the power supply device controller 210 controls the power supply device to stop supplying power according to the first detection voltage, i.e. to disconnect the power supply loop, i.e. to control the power supply loop to control the switches K1 and K2 to be in a disconnected state, so that the power supply is stopped when the vehicle controller 210 does not timely or fails to control the vehicle to stop charging, thereby further protecting the vehicle.

It should be noted that, in this example, since the power supply terminal charging stop switch S2 is in the off state, when power supply is resumed, the power supply terminal charging stop switch S2 needs to be controlled to be in the on state first, and then the charging resume process is started, that is, the vehicle controller 210 first controls the vehicle terminal charging stop switch S3 to be in the off state, and obtains the second detection voltage at the second detection point 2, controls vehicle charging according to the second detection voltage, and at the same time, the power supply device controller 110 controls the power supply device to charge the vehicle according to the first detection voltage at the first detection point 1. By the method, the problem that the power supply is recovered due to the fact that the vehicle-end charging stop switch S3 is triggered by mistake when the abnormity does not disappear can be solved.

As a fifth example, referring to fig. 16, when charging is required, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (e.g., 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detecting point 2 is the same as the first detection voltage at the first detecting point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and if the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, for example, the second detection voltage is changed from the first voltage (for example, 4V) to the second voltage (for example, 0V), and at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle charging is stopped. Meanwhile, the first detection voltage is also changed from the first voltage (such as 4V) to the second voltage (such as 0V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage of the first detection point 1, at this time, the power supply device controller 210 can control the power supply terminal charging stop switch S2 to be in a disconnected state, and control the power supply device to stop supplying power, that is, to disconnect the power supply loop, that is, to control the power supply loop to control the switches K1 and K2 to be in a disconnected state, so that power supply is stopped when the vehicle controller 210 does not timely or fails to control the vehicle to stop charging, thereby further protecting the vehicle.

Further, after the vehicle 200 stops charging, the vehicle controller 210 further obtains a reset signal, and after obtaining the reset signal, controls the vehicle-end charging stop switch S3 to be in an off state according to the reset signal, and obtains a second detection voltage at the second detection point 2, where the second detection voltage is changed from a second voltage (e.g. 0V) to a fifth voltage (e.g. 3.75V), and the vehicle controller 210 controls the vehicle to resume charging, that is, controls the charging loop control switches K5 and K6 to be in a closed state. Meanwhile, the first detection voltage is also changed from the second voltage (e.g., 0V) to the fifth voltage (e.g., 3.75V), the power supply device controller 110 may determine that charging is resumed according to the first detection voltage at the first detection point 1, at this time, the power supply device controller 110 first controls the power supply terminal charging stop switch S2 to be in a closed state, the first detection voltage is restored from the fifth voltage (e.g., 3.75V) to the first voltage (e.g., 4V), then the power supply device controller 110 controls the power supply loop to control the switches K1 and K2 to be in a closed state, and the power supply device power module 140 starts to charge the power battery 240.

As a sixth example, referring to fig. 17, when charging is required, the charging plug 130 is connected to the charging socket 230, and then the power supply device controller 110 obtains a first detection voltage at a first detection point 1 after receiving a charging start signal, and records the first detection voltage as a first voltage (e.g., 4V), at this time, the power supply device controller 110 determines that the charging plug 130 is successfully connected to the charging socket 230, and the power supply device controller 110 controls the power supply loop control switches K1 and K2 to be in a closed state. Since the second detection voltage at the second detection point 2 is the same as the first detection voltage at the first detection point 1, the second detection voltage is also the first voltage (e.g., 4V). Meanwhile, the vehicle controller 210 obtains a third detection voltage at the third detection point 3, and if the third detection voltage is 6V, at this time, the vehicle controller 210 determines that the charging plug 130 is successfully connected to the charging socket 230, the vehicle controller 210 controls the charging loop control switches K5 and K6 to be in a closed state, a charging process is started, and the power supply device power module 140 starts to charge the power battery 240.

In the charging process, after the vehicle controller 210 receives the fault signal, the vehicle-end charging stop switch S3 is controlled to be in a closed state, the second detection voltage at the second detection point 2 is changed, for example, the second detection voltage is changed from the first voltage (for example, 4V) to a third voltage (for example, 2V), at this time, the vehicle controller 210 immediately cuts off the charging loop according to the second detection voltage, that is, the charging loop control switches K5 and K6 are controlled to be in an open state, and the vehicle 200 is stopped to be charged. Meanwhile, the first detection voltage is also changed from the first voltage (e.g. 4V) to the third voltage (e.g. 2V), the power supply device controller 210 can determine that charging abnormality occurs by obtaining the first detection voltage at the first detection point 1, at this time, the power supply device controller 210 controls the power supply terminal charging stop switch S2 to be in the off state first, the first detection voltage at the first detection point 1 is changed from the third voltage (e.g. 2V) to the fourth voltage (e.g. 1.85V), and then the power supply device controller 210 controls the power supply device to stop supplying power according to the first detection voltage, namely, the power supply loop is disconnected, namely, the power supply loop controls the switches K1 and K2 to be in the off state, so that the power supply is stopped when the vehicle controller 210 does not control the vehicle to stop supplying power when the vehicle is not charged in time or cannot be controlled to further protect the vehicle.

Further, after the vehicle stops charging, the vehicle controller 210 further obtains a reset signal, and after obtaining the reset signal, controls the vehicle-end charging-stop switch S3 to be in an off state according to the reset signal, and obtains a second detection voltage at the second detection point 2, where the second detection voltage is changed from a fourth voltage (e.g., 1.85V) to a fifth voltage (e.g., 3.75V), and the vehicle controller 210 controls the vehicle to resume charging, that is, controls the charging loops to control the switches K5 and K6 to be in a closed state. Meanwhile, the first detection voltage is also changed from the fourth voltage (e.g., 1.85V) to the fifth voltage (e.g., 3.75V), the power supply device controller 110 may determine that charging is resumed according to the first detection voltage at the first detection point 1, at this time, the power supply device controller 110 first controls the power supply terminal charging stop switch S2 to be in a closed state, the first detection voltage is restored from the fifth voltage (e.g., 3.75V) to the first voltage (e.g., 4V), the power supply device controller 110 controls the power supply loop to control the switches K1 and K2 to be in a closed state, and the power supply device power module 140 starts to charge the power battery 240.

Further, an embodiment of the present invention also provides a charging control method, which is applied to a power supply apparatus and a vehicle, the power supply apparatus and the vehicle including the aforementioned control guidance circuit, and as shown with reference to fig. 18, the charging control method includes:

and step S210, the vehicle controller acquires a fault signal, controls the vehicle-end charging stop switch to be in a closed state according to the fault signal, acquires a second detection voltage of a second detection point, and controls the vehicle to stop charging according to the second detection voltage.

Step S211, the power supply device controller obtains a first detection voltage of the first detection point, and controls the power supply device to stop supplying power according to the first detection voltage.

According to some embodiments of the present invention, when the second detection voltage is changed from the first voltage to the second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply apparatus to stop supplying power. It should be noted that this method is applicable to the aforementioned example shown in fig. 12.

According to some embodiments of the present invention, when the second detection voltage is changed from the first voltage to the second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply terminal stop switch to be in an off state and controls the power supply apparatus to stop supplying power. It should be noted that this method is applicable to the aforementioned examples shown in fig. 14 and 16.

According to some embodiments of the present invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply apparatus to stop supplying power. It should be noted that this method is applicable to the aforementioned example shown in fig. 13.

According to some embodiments of the invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, and the power supply equipment controller controls the power supply terminal stop charging switch to be in an off state first and controls the power supply equipment to stop supplying power when the first detection voltage is changed from the third voltage to the second voltage. It should be noted that this method is applicable to the aforementioned example shown in fig. 15.

According to some embodiments of the invention, when the second detection voltage is changed from the first voltage to the third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, the power supply equipment controller controls the power supply terminal stop charging switch to be in an off state firstly, and controls the power supply equipment to stop supplying power when the first detection voltage is changed from the third voltage to the fourth voltage. It should be noted that this method is applicable to the aforementioned example shown in fig. 17.

According to some embodiments of the invention, the charge control method further comprises: the vehicle controller obtains the reset signal and controls the vehicle-end charging-stopping switch to be in a disconnected state according to the reset signal. It should be noted that this method is applicable to the aforementioned examples shown in fig. 12 and 13.

According to some embodiments of the invention, the charge control method further comprises: the vehicle controller acquires a reset signal and controls the vehicle-end charging and stopping switch to be in a disconnected state according to the reset signal; and the power supply terminal controller controls the power supply terminal charging stop switch to be in a closed state according to the first detection voltage. It should be noted that this method is applicable to the aforementioned examples shown in fig. 14 to 17.

It should be noted that, for the description of the charging control method applied to the power supply device and the vehicle, reference may be made to the description of the control guidance circuit, and details are not repeated here.

It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

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.

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," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described above, 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 within the scope of the present invention.

Claims

1. A vehicle, characterized by comprising: the vehicle-end charging and stopping switch is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal is provided with a second detection point;

the vehicle further comprises a vehicle controller, and the vehicle controller is used for controlling the vehicle to stop charging according to the second detection voltage of the second detection point when the vehicle-end charging stop switch is in a closed state.

2. The vehicle of claim 1, further comprising: the vehicle-end charging and stopping resistor is connected with the vehicle-end charging and stopping switch in series, one end of the vehicle-end charging and stopping resistor connected with the vehicle-end charging and stopping switch in series is connected with the first vehicle-end connection confirmation terminal, and the other end of the vehicle-end charging and stopping switch is connected with the vehicle body ground of the vehicle.

3. The vehicle according to claim 1 or 2, characterized by further comprising: and the vehicle end charging and discharging connecting resistor is connected between the vehicle end first connection confirmation terminal and the vehicle body ground of the vehicle.

4. The vehicle of claim 3, further comprising: the vehicle end detection resistor and the vehicle end second connection confirmation terminal are connected, and the vehicle end detection resistor is connected between the vehicle end second connection confirmation terminal and a vehicle end preset power source.

5. A control steering circuit, comprising: a first control guidance module provided on the power supply apparatus and a second control guidance module provided on the vehicle, wherein,

the first control guidance module comprises a power supply end detection resistor, a power supply end preset power supply and a power supply end first connection confirmation terminal, the power supply end detection resistor is connected between the power supply end first connection confirmation terminal and the power supply end preset power supply, and the power supply end first connection confirmation terminal is provided with a first detection point;

the second control guidance module comprises a vehicle-end parking and charging switch and a vehicle-end first connection confirmation terminal, the vehicle-end parking and charging switch is connected between the vehicle-end first connection confirmation terminal and a vehicle body ground of the vehicle, and the vehicle-end first connection confirmation terminal is provided with a second detection point.

6. The control steering circuit of claim 5, wherein the second control steering module further comprises: the vehicle-end charging and stopping resistor is connected with the vehicle-end charging and stopping switch in series, one end of the vehicle-end charging and stopping switch after being connected with the vehicle-end charging and stopping switch in series is connected with the first vehicle-end connection confirmation terminal, and the other end of the vehicle-end charging and stopping switch is connected with a vehicle body ground of the vehicle.

7. The control steering circuit of claim 5, wherein the second control steering module further comprises: and the vehicle end charging and discharging connecting resistor is connected between the vehicle end first connection confirmation terminal and the vehicle body ground of the vehicle.

8. The control steering circuit of claim 5, wherein the second control steering module further comprises: the vehicle end detection resistor, the vehicle end preset power supply and the vehicle end second connection confirmation terminal are connected, and the vehicle end detection resistor is connected between the vehicle end second connection confirmation terminal and the vehicle end preset power supply.

9. The control steering circuit according to any of claims 5-8, wherein the first control steering module further comprises: the power supply end charging stopping switch is connected with the power supply end detection resistor in series, one end, after the power supply end charging stopping switch is connected with the power supply end detection resistor in series, of the power supply end is connected with the first power supply end connection confirmation terminal, and the other end of the power supply end connection presetting power supply.

10. The control steering circuit of claim 9, wherein the first control steering module further comprises: and the power supply end charging stopping resistor is connected with the power supply end charging stopping switch in parallel.

11. The control steering circuit of claim 9, wherein the first control steering module further comprises: the charging and discharging connection switch, the first charging and discharging connection resistor, the second charging and discharging connection resistor and the power supply end second connection confirmation terminal, the charging and discharging connection switch with the first charging and discharging connection resistor is connected in series, the charging and discharging connection switch with one end of the first charging and discharging connection resistor after being connected in series is connected with the first connection confirmation terminal of the power supply end, the other end of the charging and discharging connection resistor is connected with the equipment ground of the power supply equipment, and the second charging and discharging connection resistor is connected with the power supply end second connection confirmation terminal and the equipment ground of the power supply equipment.

12. The control guidance circuit of claim 5, wherein the second control guidance module further comprises a vehicle controller configured to control the vehicle to stop charging according to the second detection voltage at the second detection point when the vehicle-end stop-charging switch is in a closed state.

13. A charge control method, characterized by being applied to a vehicle according to any one of claims 1 to 4, the method comprising:

acquiring a fault signal;

controlling a vehicle-end charging and stopping switch to be in a closed state according to the fault signal;

acquiring a second detection voltage of a second detection point;

and controlling the vehicle to stop charging according to the second detection voltage.

14. The charge control method according to claim 13, characterized by further comprising:

acquiring a reset signal;

and controlling the vehicle-end charging stop switch to be in a disconnected state according to the reset signal.

15. A charge control method applied to a power supply apparatus and a vehicle including the control guidance circuit according to any one of claims 5 to 12, the method comprising:

the vehicle controller acquires a fault signal, controls a vehicle-end charging stop switch to be in a closed state according to the fault signal, acquires a second detection voltage of a second detection point, and controls the vehicle to stop charging according to the second detection voltage;

the power supply equipment controller obtains a first detection voltage of a first detection point and controls the power supply equipment to stop supplying power according to the first detection voltage.

16. The charge control method according to claim 15, wherein when the second detection voltage is changed from a first voltage to a second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply equipment controller controls the power supply equipment to stop supplying power.

17. The charge control method according to claim 15, wherein when the second detection voltage is changed from a first voltage to a second voltage, the first detection voltage is changed from the first voltage to the second voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply terminal stop charging switch to be in an off state and controls the power supply apparatus to stop supplying power.

18. The charge control method according to claim 15, wherein when the second detection voltage is changed from a first voltage to a third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, and the power supply apparatus controller controls the power supply apparatus to stop supplying power.

19. The charge control method according to claim 15, wherein when the second detection voltage is changed from a first voltage to a third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, the power supply apparatus controller controls a power supply terminal stop switch to be in an off state first, and controls the power supply apparatus to stop supplying power when the first detection voltage is changed from the third voltage to the second voltage.

20. The charge control method according to claim 15, wherein when the second detection voltage is changed from a first voltage to a third voltage, the first detection voltage is changed from the first voltage to the third voltage, the vehicle controller controls the vehicle to stop charging, the power supply device controller controls a power supply terminal stop charging switch to be in an off state first, and controls the power supply device to stop supplying power when the first detection voltage is changed from the third voltage to a fourth voltage.

21. The charge control method according to claim 16 or 18, characterized by further comprising:

the vehicle controller obtains a reset signal and controls the vehicle-end charging stop switch to be in a disconnected state according to the reset signal.

22. The charge control method according to claim 17, 19 or 20, characterized by further comprising:

the vehicle controller acquires a reset signal and controls the vehicle-end charging and stopping switch to be in a disconnected state according to the reset signal;

and the power supply terminal controller controls the power supply terminal charging stop switch to be in a closed state according to the first detection voltage.