CN116373634A - Vehicle control method, device and equipment - Google Patents

Abstract

The invention provides a vehicle control method, a device and equipment. Wherein the method comprises the following steps: when the vehicle is electrified, a first control instruction is sent to the branching device, and the branching device is controlled to be in a first connection state; in the first connection state, the branching device is communicated with the vehicle-mounted charger and the power supply socket; under the condition that the charging port is detected to be connected with the charging and discharging device, a second control instruction is sent to the branching device, and the branching device is controlled to be switched from the first connection state to the second connection state; and in the second connection state, the branching device is communicated with the vehicle-mounted charger and the charging port. According to the embodiment of the invention, the power supply socket and the charging port are controlled to be respectively communicated with the vehicle-mounted charger, so that the power supply socket and the charging port are prevented from being electrified at the same time, and potential safety hazards are effectively prevented.

Description

Vehicle control method, device and device

technical field

The present invention relates to the technical field of automobiles, in particular to a vehicle control method, device and equipment.

Background technique

At present, the technology of the new energy vehicle industry is developing rapidly. New energy vehicles are endowed with more intelligence and a stronger sense of technology. User satisfaction with charging.

In recent years, with the development of two-way on-board chargers, new energy vehicles can use the inverter function of two-way on-board chargers to directly output 220V voltage for use by in-vehicle electrical appliances. Compared with the previous method of converting 12V DC to 220V in the car, the output power Larger, while saving the use of inverter converters.

However, when using the inverter function of the on-board charger to supply power inside the car, the charging port outside the car is also charged; when using the on-board charger to charge or discharge the vehicle, the power socket is also charged, which poses a certain safety hazard.

Contents of the invention

The purpose of the present invention is to provide a vehicle control method, device and equipment, which are used to solve the problem of potential safety hazards caused by the simultaneous charging of the power supply socket and the charging port when the on-board charger is used for in-vehicle power supply or out-of-vehicle charging and discharging.

In order to solve the above technical problems, an embodiment of the present invention provides a vehicle control method, the vehicle is provided with a power supply socket inside, and a charging port is provided outside, and the power supply socket and the charging port are connected to the vehicle through a branching device. The on-board charger is connected, wherein the method includes:

When the vehicle is powered on, send a first control instruction to the line distribution device to control the line distribution device to be in the first connection state; in the first connection state, the line distribution device is connected to the on-board charger machine and the power socket;

When it is detected that the charging port is connected to a charging and discharging device, a second control instruction is sent to the branching device to control the branching device to switch from the first connection state to the second connection state; In the second connection state, the branching device communicates with the on-board charger and the charging port.

Optionally, the method also includes:

When the branching device is in the first connection state, temperature detection is performed on the power supply socket;

When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket.

Optionally, the method also includes:

When the branching device is in the first connection state, monitor the output power of the on-board charger;

When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket.

Optionally, the method also includes:

A first line connecting the on-board charger and the power supply socket, the first line is provided with a first relay;

A second line connecting the on-board charger and the charging port, the second line is provided with a second relay;

A third line connecting the on-board charger and the charging port, the third line is provided with a third relay;

Wherein, sending the first control instruction to the line branching device includes:

sending the first control instruction to the first relay to control the first relay to close;

sending the first control instruction to the second relay to control the second relay to be disconnected;

sending the first control command to the third relay to control the third relay to be disconnected;

Sending a second control command to the branching device, including:

sending the second control instruction to the first relay to control the first relay to be disconnected;

sending the second control instruction to the second relay to control the second relay to close;

Sending the second control command to the third relay to control the third relay to close.

Optionally, the method also includes:

When the vehicle is powered on, an in-vehicle power supply command is sent to the on-board charger, and the on-board charger is controlled to output a preset voltage to the power supply socket by using an inverter function.

Optionally, the method also includes:

When it is detected that the charging port is connected to a charging and discharging device, an instruction to stop power supply in the vehicle is sent to the on-board charger, and the on-board charger is controlled to stop outputting a preset voltage to the power supply socket.

The embodiment of the present invention also provides a vehicle control device, the vehicle is provided with a power supply socket inside, and a charging port is provided outside, and the power supply socket and the charging port are connected to the on-board charger in the vehicle through a branching device connected, wherein the device comprises:

The first control module: used to send a first control instruction to the line distribution device when the vehicle is powered on, and control the line distribution device to be in the first connection state; in the first connection state, the distribution line The line device communicates with the on-board charger and the power supply socket;

The second control module: used to send a second control command to the branching device when it is detected that the charging port is connected to a charging and discharging device, and control the branching device to switch from the first connection state to the second connection state Two connection states; in the second connection state, the branching device connects the on-board charger and the charging port.

Optionally, the device also includes:

A temperature detection module: used to detect the temperature of the power supply socket when the distribution device is in the first connection state; and

When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket.

Optionally, the device also includes:

A power monitoring module: when the branching device is in the first connection state, monitor the output power of the on-board charger; and

When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket.

An embodiment of the present invention also provides a control device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; wherein the processor is used to read the memory The program in executes the vehicle control method described in any one of the above.

At least one of the above technical solutions of the present invention has the following beneficial effects:

Adopt the vehicle control method described in the embodiment of the present invention to control the communication between the power supply socket and the charging port and the on-board charger respectively. After the vehicle is powered on, the vehicle controller controls the branching device to be in the first connection state and connects to the on-board charger. and the power supply socket, so that the power supply socket in the car can be plugged and used, and the charging port outside the car is prevented from being charged; The on-board charger and charging port can be used for charging or discharging outside the car, and prevent the power supply socket in the car from being charged, effectively preventing potential safety hazards.

Description of drawings

Fig. 1 is a schematic structural diagram of a control system provided by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a vehicle control method provided by an embodiment of the present invention;

Fig. 3 is a schematic flow chart of the method described in the embodiment of the present invention;

Fig. 4 is another schematic flow chart of the method according to the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Fig. 1, it is the structure of the control system provided by the embodiment of the present invention. The control system includes a vehicle controller, a vehicle charger, a power socket, a distribution device, and a charging port. The vehicle controller is connected to the on-board charger, power supply socket, distribution device and charging port through the Controller Area Network (CAN) communication, and the distribution device is respectively connected to the vehicle charger, power supply socket and charging port through the AC circuit. connect.

Optionally, the on-board charger can be, but not limited to, a bidirectional on-board charger with an inverter function, and the two-way on-board charger has two functions of charging and discharging, wherein the discharging function can include external discharge (Vehicle to Load, V2L ) function, Vehicle-to-Vehicle (V2V) function and in-vehicle power supply function.

Optionally, the distribution device includes a distribution box, several relays and several AC circuits.

In the above-mentioned embodiment of the present invention, several relays are respectively the first relay K1, the second relay K2 and the third relay K3, and the first relay K1 is arranged on the fire wire connected between the on-board charger and the power supply socket in the junction box, and the second The relay K2 is set on the live wire connected to the on-board charger in the junction box and the charging port, and the third relay K3 is set on the neutral line connected to the on-board charger in the junction box and the charging port. When the vehicle is powered on at high voltage, the first control command is sent to the distribution device, the first relay K1 is controlled to be closed, the second relay K2 and the third relay K3 are disconnected, and at the same time, the on-board charger is controlled to supply power to the power supply socket, so that the high voltage is powered on The power supply socket in the rear car is plugged and used, and the charging port outside the car is prevented from being charged; when the on-board charger detects that the charging port is connected to the charging and discharging device, it sends a second control command to the branching device to control the first relay K1 to switch off. Open, the second relay K2 and the third relay K3 are closed, and at the same time control the on-board charger to stop supplying power to the power supply socket, so that after the charging port is detected that the charging and discharging device is connected, the vehicle can be charged or discharged, and the power supply socket in the car can be avoided. .

As shown in Figure 2, in a vehicle control method provided by an embodiment of the present invention, a power supply socket is provided inside the vehicle, and a charging port is provided outside, and the power supply socket and the charging port are connected to the An on-board charger connection in a vehicle, wherein the method includes:

Step S201, when the vehicle is powered on, send a first control command to the line distribution device to control the line distribution device to be in the first connection state; in the first connection state, the line distribution device connects all The on-board charger and the power supply socket;

Step S202, when it is detected that the charging port is connected to a charging and discharging device, sending a second control command to the line branching device to control the line branching device to switch from the first connection state to the second connection state; In the second connection state, the branching device communicates with the on-board charger and the charging port.

In the above embodiments of the present invention, the vehicle is powered on at high voltage; the charging and discharging device includes a device for charging the vehicle and/or a device for discharging the vehicle, such as a charging gun and/or a discharging gun . In step S202, when the on-board charger detects that the charging port is connected to any of the above-mentioned charging and discharging devices, it sends a second control command to the branching device, and controls the branching device to connect to the first connection. The state is switched to a second connection state; in the second connection state, the branching device is connected to the on-board charger and the charging port.

As shown in Figure 3, it is a schematic flow chart of the method according to the embodiment of the present invention. Using this embodiment, the vehicle control method includes the following steps:

Step S301, the vehicle is powered on with high voltage;

Step S302, the vehicle controller sends a first control instruction to the line distribution device, and controls the line distribution device to be in the first connection state; in the first connection state, the line distribution device is connected to the on-board charger and the power supply socket for in-vehicle power supply;

Step S303, the on-board charger detects whether the charging port is connected to the charging and discharging device, and sends the connection status of the charging port to the vehicle controller. If connected, go to step S304; if not connected, go to step S302;

Step S304, the vehicle controller sends a second control instruction to the line distribution device, and controls the line distribution device to switch from the first connection state to the second connection state; in the second connection state, the branch line The cable device is connected to the on-board charger and the charging port, so that charging or discharging outside the car can be performed.

In the above embodiments of the present invention, the vehicle controller controls the connection between the power supply socket and the charging port and the on-board charger respectively, and after the vehicle is powered on, controls the branching device to be in the first connection state, and connects the on-board charger and the power supply socket. Make the power supply socket in the car plug and play, and avoid the charging port outside the car from being charged; after detecting that the charging port is connected to the charging and discharging device, the control line distribution device is in the second connection state, connecting the car charger and the charging port, and the car can be charged. Charging or discharging outside the car, and avoiding the charging of the power socket in the car, effectively preventing potential safety hazards.

Optionally, the method also includes:

When the branching device is in the first connection state, temperature detection is performed on the power supply socket;

When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket.

As shown in FIG. 4, it is another schematic flowchart of the method according to the embodiment of the present invention. Using this embodiment, the vehicle control method includes the following steps:

Step S401, the vehicle is powered on with high voltage;

Step S402, the vehicle controller sends a first control instruction to the line distribution device, and controls the line distribution device to be in the first connection state; in the first connection state, the line distribution device is connected to the on-board charger and the power supply socket for in-vehicle power supply;

Step S403, the vehicle controller detects the temperature of the power supply socket to determine whether the temperature of the power supply socket is greater than the first threshold, if greater, go to step S404; if less than or equal to, go to step S405;

Step S404, the vehicle controller sends a third control instruction to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state, the line distribution device disconnects the on-board charging machine and the connection of the power supply socket, stop the power supply in the car;

Step S405, the vehicle controller judges whether the vehicle is powered off at high voltage, if the vehicle is not powered off, go to step S402; if the vehicle is powered off, then end.

In the above-mentioned embodiments of the present invention, when the vehicle supplies power inside the vehicle, the temperature sensor installed on the vehicle controller detects the temperature of the power supply socket, and when the temperature of the power supply socket is greater than the first threshold, the on-board charger is disconnected from the power supply. The connection of the socket stops the power supply in the car, and over-temperature protection is performed on the power supply socket to prevent the socket from being damaged due to excessive temperature and avoid potential safety hazards.

Optionally, the method also includes:

When the branching device is in the first connection state, monitor the output power of the on-board charger;

When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket.

In the above embodiments of the present invention, when the vehicle is supplying power inside the vehicle, the power monitoring device installed on the vehicle controller monitors the output power of the on-board charger, and when the output power of the on-board charger is greater than the second threshold, the power monitoring device is disconnected. The connection between the car charger and the power socket stops the power supply in the car, prevents the device from being burned due to excessive current, and performs overload protection to avoid potential safety hazards.

Optionally, the method also includes:

A first line connecting the on-board charger and the power supply socket, the first line is provided with a first relay;

A second line connecting the on-board charger and the charging port, the second line is provided with a second relay;

A third line connecting the on-board charger and the charging port, the third line is provided with a third relay;

Wherein, sending the first control instruction to the line branching device includes:

sending the first control instruction to the first relay to control the first relay to close;

sending the first control instruction to the second relay to control the second relay to be disconnected;

sending the first control command to the third relay to control the third relay to be disconnected;

Sending a second control command to the branching device, including:

sending the second control instruction to the first relay to control the first relay to be disconnected;

sending the second control instruction to the second relay to control the second relay to close;

Sending the second control command to the third relay to control the third relay to close.

In the above-mentioned embodiment of the present invention, the vehicle controller controls several relays arranged in the distribution device. After the vehicle is powered on, the first relay is controlled to close, the second relay and the third relay are disconnected, and the power supply socket in the vehicle Plug and play, and avoid the charging port outside the car from being charged; after detecting that the charging port is connected to the charging and discharging device, control the first relay to be disconnected, and the second relay and the third relay to be closed, so that charging or discharging outside the car can be performed, and the car can be avoided. The internal power supply socket is live, effectively preventing potential safety hazards.

Optionally, the method also includes:

When the vehicle is powered on, an in-vehicle power supply command is sent to the on-board charger, and the on-board charger is controlled to output a preset voltage to the power supply socket by using an inverter function.

In the above embodiments of the present invention, after the vehicle is powered on at high voltage, the vehicle controller controls the on-board charger to use the inverter function to output a preset voltage to the power socket; wherein, the preset voltage includes but is not limited to 220V voltage.

Optionally, the method also includes:

When it is detected that the charging port is connected to a charging and discharging device, an instruction to stop power supply in the vehicle is sent to the on-board charger, and the on-board charger is controlled to stop outputting a preset voltage to the power supply socket.

In the above embodiments of the present invention, when it is detected that the charging port is connected to the charging and discharging device, the vehicle controller controls the on-board charger to stop outputting the preset voltage to the power socket; wherein, the preset voltage includes but is not limited to 220V voltage.

As shown in Figure 5, an embodiment of the present invention also provides a vehicle control device, the vehicle is provided with a power supply socket inside, and a charging port is provided outside, and the power supply socket and the charging port are connected to the On-board charger connection in a vehicle, wherein said means include:

The first control module 51: used to send a first control instruction to the line distribution device when the vehicle is powered on, and control the line distribution device to be in the first connection state; in the first connection state, the The branching device communicates with the on-board charger and the power socket;

The second control module 52: used to send a second control instruction to the branching device when it is detected that the charging port is connected to a charging and discharging device, and control the branching device to switch from the first connection state to A second connection state; in the second connection state, the branching device is connected to the on-board charger and the charging port.

Optionally, the device also includes:

A temperature detection module: used to detect the temperature of the power supply socket when the distribution device is in the first connection state; and

When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket.

Optionally, the device also includes:

A power monitoring module: when the branching device is in the first connection state, monitor the output power of the on-board charger; and

When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket.

Optionally, the device also includes:

The third control module: when the vehicle is powered on, send an in-vehicle power supply command to the on-board charger, and control the on-board charger to output a preset voltage to the power supply socket by using an inverter function.

Optionally, the device also includes:

The fourth control module: when detecting that the charging port is connected to a charging and discharging device, send an instruction to the on-board charger to stop power supply in the car, and control the on-board charger to stop outputting a preset voltage to the power socket.

It should be noted that the embodiment of the device is a device corresponding to the embodiment of the above-mentioned method, and all the implementation modes in the embodiment of the above-mentioned method are applicable to the embodiment of the device, and can also achieve the same technical effect.

An embodiment of the present invention also provides a control device, including: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; wherein the processor is used to read the memory The program in executes the vehicle control method described in any one of the above.

To sum up, in the embodiment of the present invention, after the vehicle is powered on, the vehicle controller controls the distribution device to be in the first connection state, connects the on-board charger and the power socket, and simultaneously controls the on-board charger to invert the output to the power socket The preset voltage makes the power supply socket in the car plug and play, and prevents the charging port outside the car from being charged; after detecting that the charging port is connected to the charging and discharging device, the control branching device is switched from the first connection state to the second connection state, and the connection The car charger and the charging port control the car charger to stop outputting the preset voltage to the power socket at the same time, which can be used for charging or discharging outside the car, and prevent the power socket in the car from being charged, effectively preventing potential safety hazards. When the vehicle is powered on, the temperature of the power supply socket is detected. When the temperature is too high, the connection between the on-board charger and the power supply socket is disconnected, the in-vehicle power supply is stopped, and the power supply socket is over-temperature protected; Output power monitoring, when the output power is too high, disconnect the car charger from the power socket, stop the power supply in the car, and perform overload protection to avoid potential safety hazards.

Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims (10)

1. A vehicle control method, characterized in that, the inside of the vehicle is provided with a power supply socket, and the outside is provided with a charging port, and the power supply socket and the charging port are connected to the on-board charger in the vehicle through a branching device connecting, wherein the method includes: When the vehicle is powered on, send a first control instruction to the line distribution device to control the line distribution device to be in the first connection state; in the first connection state, the line distribution device is connected to the on-board charger machine and the power socket; When it is detected that the charging port is connected to a charging and discharging device, a second control instruction is sent to the branching device to control the branching device to switch from the first connection state to the second connection state; In the second connection state, the branching device communicates with the on-board charger and the charging port. 2. The vehicle control method according to claim 1, further comprising: When the branching device is in the first connection state, temperature detection is performed on the power supply socket; When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket. 3. The vehicle control method according to claim 1, further comprising: When the branching device is in the first connection state, monitor the output power of the on-board charger; When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket. 4. The vehicle control method according to claim 1, wherein the branching device comprises: A first line connecting the on-board charger and the power supply socket, the first line is provided with a first relay; A second line connecting the on-board charger and the charging port, the second line is provided with a second relay; A third line connecting the on-board charger and the charging port, the third line is provided with a third relay; Wherein, sending the first control instruction to the line branching device includes: sending the first control instruction to the first relay to control the first relay to close; sending the first control instruction to the second relay to control the second relay to be disconnected; sending the first control command to the third relay to control the third relay to be disconnected; Sending a second control command to the branching device, including: sending the second control instruction to the first relay to control the first relay to be disconnected; sending the second control instruction to the second relay to control the second relay to close; Sending the second control command to the third relay to control the third relay to close. 5. The vehicle control method according to claim 1, further comprising: When the vehicle is powered on, an in-vehicle power supply command is sent to the on-board charger, and the on-board charger is controlled to output a preset voltage to the power supply socket by using an inverter function. 6. The vehicle control method according to claim 1 or 5, characterized in that the method further comprises: When it is detected that the charging port is connected to a charging and discharging device, an instruction to stop power supply in the vehicle is sent to the on-board charger, and the on-board charger is controlled to stop outputting a preset voltage to the power supply socket. 7. A vehicle control device, characterized in that a power supply socket is provided inside the vehicle, and a charging port is provided outside, and the power supply socket and the charging port are connected to the on-board charger in the vehicle through a branching device connected, wherein the device comprises: The first control module: used to send a first control instruction to the line distribution device when the vehicle is powered on, and control the line distribution device to be in the first connection state; in the first connection state, the distribution line The line device communicates with the on-board charger and the power supply socket; The second control module: used to send a second control command to the branching device when it is detected that the charging port is connected to a charging and discharging device, and control the branching device to switch from the first connection state to the second connection state Two connection states; in the second connection state, the branching device connects the on-board charger and the charging port. 8. The vehicle control device according to claim 7, further comprising: A temperature detection module: used to detect the temperature of the power supply socket when the distribution device is in the first connection state; and When it is detected that the temperature of the power supply socket is greater than the first threshold, a third control instruction is sent to the distribution device to control the distribution device to be in a third connection state; in the third connection state, the The branching device disconnects the connection between the on-board charger and the power socket. 9. The vehicle control device according to claim 7, further comprising: A power monitoring module: when the branching device is in the first connection state, monitor the output power of the on-board charger; and When it is monitored that the output power of the on-board charger is greater than the second threshold, a third control instruction is sent to the line distribution device to control the line distribution device to be in a third connection state; in the third connection state , the branching device disconnects the connection between the on-board charger and the power socket. 10. A control device, comprising: a transceiver, a memory, a processor, and a computer program stored on the memory and operable on the processor; wherein the processor is used to read the memory The program in the program executes the vehicle control method described in any one of claims 1 to 6.

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