Vehicle discharging system, method and equipment and storage medium

Abstract

The invention discloses a vehicle discharging system method, device and equipment and a storage medium. The system comprises an OBC, an in-vehicle discharging socket, an out-vehicle alternating current socket and a control module. The OBC comprises a bidirectional vehicle-mounted charging circuit, an alternating current relay, a control unit and a discharging interface; the control module is used for sending corresponding control instructions to the control unit according to the working states of the in-vehicle discharging socket and the out-vehicle alternating current socket, and the control instructions are used for indicating the control unit to control the bidirectional vehicle-mounted charging circuit and the alternating current relay. And the alternating current output by the bidirectional vehicle-mounted charging circuit is distributed to the in-vehicle discharging socket or the out-vehicle alternating current socket. The single relay and the single discharge interface are arranged in the OBC, and related control strategies of the control unit and the control module are matched, so that alternating current is provided for the in-vehicle discharge socket or the out-vehicle alternating current socket, a multi-scene inversion function is realized, the mounting space requirement is reduced, and the manufacturing cost and the maintenance complexity are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging and discharging, and in particular to a vehicle discharging system, method, device and storage medium. Background Art

[0002] At present, new energy vehicles on the market generally use bidirectional on-board chargers (OBC) to achieve high-voltage inverter function. This design cleverly utilizes the power electronic conversion capability of OBC to invert the high-voltage DC current (such as 300V to 400V) output by the battery pack into 220V AC current that can be directly used by households and general electrical appliances. This inverter process greatly expands the energy application range of electric vehicles, allowing electric vehicles to be used not only as a means of transportation, but also as a mobile power source in specific scenarios to power various electrical equipment.

[0003] In order to realize the multi-scenario application of the inverter function, the existing technology usually sets two relays and two independent discharge interfaces in the OBC. The bidirectional on-board charging circuit in the OBC is electrically connected to the two discharge interfaces through two relays to provide AC power to the two discharge interfaces respectively. One of the discharge interfaces is connected to the discharge socket in the car to realize the power supply in the car; the other discharge interface is connected to the AC socket outside the car to realize the power supply outside the car. However, the built-in dual relay system of the OBC in this solution puts forward high requirements on the installation space, and also increases the manufacturing cost and maintenance complexity.

[0004] Therefore, providing an in-vehicle inverter system that can efficiently realize multi-scenario inverter functions and reduce installation space requirements, manufacturing costs and maintenance complexity has become a technical problem that urgently needs to be solved. Summary of the invention

[0005] In view of the above problems, the present invention provides a vehicle discharge system, method, device and storage medium that overcome the above problems or at least partially solve the above problems. By setting a single relay and a single discharge interface in the OBC, cooperating with the relevant control strategies of the control unit and the control module, AC power is provided to the discharge socket in the vehicle or the AC socket outside the vehicle, thereby realizing a multi-scenario inverter function, reducing the installation space requirements, and reducing the manufacturing cost and maintenance complexity.

[0006] In a first aspect, a vehicle discharging system is provided, comprising:

[0007] A bidirectional on-board charger, comprising a bidirectional on-board charging circuit, an AC relay, a control unit and a discharge interface, wherein the bidirectional on-board charging circuit is electrically connected to the discharge interface via the AC relay, and the control unit is electrically connected to the bidirectional on-board charging circuit and the AC relay;

[0008] An in-vehicle discharge socket, electrically connected to the discharge interface via a first wire;

[0009] An AC socket outside the vehicle, electrically connected to the discharge interface via a second wire;

[0010] A control module is communicatively connected with the control unit, the in-vehicle discharge socket and the out-vehicle AC socket. The control module is used to send corresponding control instructions to the control unit according to the working states of the in-vehicle discharge socket and the out-vehicle AC socket. The control instructions are used to instruct the control unit to control the bidirectional on-vehicle charging circuit and the AC relay to distribute the AC power output by the bidirectional on-vehicle charging circuit to the in-vehicle discharge socket or the out-vehicle AC socket.

[0011] Optionally, the working state includes a non-working state and a discharging state, the control instruction includes a first on-off control instruction and a second on-off control instruction, and the control module is used to:

[0012] When both the in-vehicle discharge socket and the out-vehicle AC socket are in a non-working state, or both the in-vehicle discharge socket and the out-vehicle AC socket are in a discharge state, sending the first on-off control instruction to the control unit, wherein the first on-off control instruction is used to instruct the control unit to control the AC relay to disconnect;

[0013] When one of the in-vehicle discharge socket and the out-vehicle AC socket is in a discharge state, the second on-off control instruction is sent to the control unit, and the second on-off control instruction is used to instruct the control unit to control the AC relay to be connected.

[0014] Optionally, the control instruction includes a first current control instruction and a second current control instruction, and the control module is further used to:

[0015] When one of the in-vehicle discharge socket and the out-vehicle AC socket is in a discharge state, sending the first current control instruction or the second current instruction to the control unit, the first current control instruction is used to instruct the bidirectional on-vehicle charging circuit to output AC power of a first current value, and the second current control instruction is used to instruct the bidirectional on-vehicle charging circuit to output AC power of a second current value;

[0016] The first current value is related to the rated power of the in-vehicle discharge socket, and the second current value is related to the rated power of the out-vehicle AC socket.

[0017] Optionally, the current carrying capacity of the first conductor is greater than the first current value, and the current carrying capacity of the second conductor is greater than the second current value.

[0018] Optionally, the discharge system further includes:

[0019] A micro switch, arranged in the in-vehicle discharge socket, is communicatively connected with the control unit, and is used to generate a first signal and send it to the control module via the control unit, wherein the first signal is used to indicate whether a plug is inserted into the in-vehicle discharge socket;

[0020] A discharge meter switch, arranged on the vehicle control panel, is communicatively connected with the control module, and is used to generate a second signal and send it to the control module, wherein the second signal is used to indicate whether the user turns on the discharge meter switch to agree to the in-vehicle discharge function;

[0021] The control module is further used to determine whether the in-vehicle discharge socket is in a discharge state according to the first signal and the second signal.

[0022] Optionally, the discharge system further includes:

[0023] A body cover switch, arranged on the body cover corresponding to the external AC socket, is communicatively connected with the control module and is used to generate a third signal and send it to the control module, wherein the third signal is used to indicate whether the body cover is closed;

[0024] The control module is further used to determine whether the external AC socket is in a discharging state according to the third signal.

[0025] Optionally, the discharge system further includes:

[0026] a temperature switch, disposed in the in-vehicle discharge socket, and communicatively connected to the control unit, and configured to generate a fourth signal, wherein the fourth signal is configured to indicate whether the temperature of the in-vehicle discharge socket is higher than a preset first temperature threshold;

[0027] a temperature sensor, disposed in the external AC socket, and communicatively connected to the control unit, for generating a fifth signal, wherein the fifth signal is used to indicate whether the temperature of the external AC socket is higher than a preset second temperature threshold;

[0028] The control unit is further used to determine whether to control the AC relay to be disconnected according to the fourth signal and the fifth signal.

[0029] In a second aspect, a vehicle discharging method is provided, which is applicable to the vehicle discharging system as described in the first aspect, and the vehicle discharging method comprises:

[0030] Determine the working status of the discharge socket inside the vehicle and the AC socket outside the vehicle;

[0031] According to the working status of the in-vehicle discharge socket and the out-vehicle AC socket, a corresponding on-off control instruction is sent to the control unit, and the control instruction is used to instruct the control unit to control the bidirectional vehicle-mounted charging circuit and the AC relay to distribute the AC power output by the bidirectional vehicle-mounted charging circuit to the in-vehicle discharge socket or the out-vehicle AC socket.

[0032] In a third aspect, an electronic device is provided, comprising: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the vehicle discharging method as described in the first aspect by executing the computer instructions.

[0033] In a fourth aspect, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the vehicle discharging method as described in the first aspect.

[0034] The technical solution provided in the embodiments of the present invention has at least the following technical effects or advantages:

[0035] A vehicle discharge system method, device, equipment and storage medium provided by an embodiment of the present invention, by setting a single relay and a single discharge interface in a bidirectional on-board charger, and cooperating with a control unit in the bidirectional on-board charger, enables the control module to monitor the working status of the discharge socket in the vehicle and the AC socket outside the vehicle in real time, and sends a control instruction to the control unit according to the actual situation, controls the bidirectional on-board charging circuit and the AC relay, so as to distribute the AC power output by the bidirectional on-board charging circuit to the discharge socket in the vehicle or the AC socket outside the vehicle, ensure the safe and accurate distribution of the AC power, and can efficiently realize the multi-scenario inverter function. Compared with the dual relay system used in the traditional solution, the present invention only uses one AC relay, which reduces the number of components inside the bidirectional on-board charger, thereby reducing the demand for installation space. Due to the reduction in the number of key components such as relays, the vehicle discharge system of the present invention is effectively controlled in terms of manufacturing cost. At the same time, the simplified circuit structure also means that in the subsequent maintenance process, troubleshooting and repair will be more convenient, reducing the complexity and cost of maintenance, and improving user experience and vehicle economy. In summary, the vehicle discharge system of the present invention realizes efficient, flexible, economical and reliable inverter function by optimizing circuit design, reducing the number of components, improving control accuracy, etc., providing strong support for the widespread application of new energy vehicles.

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0038] Figure 1 is a schematic diagram of a circuit structure of a vehicle discharge system provided by an embodiment of the present invention;

[0039] Figure 2 The present invention provides a flow chart of a vehicle discharging method. DETAILED DESCRIPTION

[0040] In order to better understand the above-mentioned technical scheme, the above-mentioned technical scheme will be described in detail below in combination with the accompanying drawings and specific implementation methods of the specification. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical scheme of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0041] Figure 1 is a schematic diagram of a circuit structure of a vehicle discharge system provided by an embodiment of the present invention, such as Figure 1 As shown, the vehicle discharge system includes a bidirectional on-board charger (hereinafter referred to as OBC) 10 , an in-vehicle discharge socket 20 , an out-vehicle AC socket 30 and a control module 40 .

[0042] The bidirectional on-board charger 10 includes a bidirectional on-board charging circuit 11, an AC relay 12, a control unit 13 and a discharge interface A. The bidirectional on-board charging circuit 11 is electrically connected to the discharge interface A through the AC relay 12, and the control unit 13 is electrically connected to the bidirectional on-board charging circuit 11 and the AC relay 12. The discharge socket 20 in the vehicle is electrically connected to the discharge interface A through a first wire. The AC socket 30 outside the vehicle is electrically connected to the discharge interface A through a second wire. The control module 40 is communicatively connected to the control unit 13, the discharge socket 20 in the vehicle and the AC socket 30 outside the vehicle. The control module 40 is used to send corresponding control instructions to the control unit 13 according to the working status of the discharge socket 20 in the vehicle and the AC socket 30 outside the vehicle. The control instructions are used to instruct the control unit 13 to control the bidirectional on-board charging circuit 11 and the AC relay 12 to distribute the AC power output by the bidirectional on-board charging circuit 11 to the discharge socket 20 in the vehicle or the AC socket 30 outside the vehicle.

[0043] In this embodiment, the in-vehicle discharge socket 20 refers to a socket provided in the vehicle for powering or charging various in-vehicle electrical appliances, such as mobile phones, tablet computers, and driving recorders. The in-vehicle discharge socket 20 can provide 220V AC power through OBC10 inverter, thereby supporting the use of more types of electrical equipment. The external AC socket 30 generally refers to a 220V AC socket installed outside the vehicle (such as the trunk or the side of the vehicle body). The external AC socket 30 can provide 220V AC power through OBC10 inverter, greatly expanding the use scenarios and functions of the vehicle.

[0044] like Figure 1 As shown, in this embodiment, the first wire and the second wire each include an L wire (live wire) and an N wire (neutral wire). The discharge interface A of the OBC10 is a high-voltage discharge interface, and the first wire and the second wire can be gathered into a pair of wires (including an L wire and an N wire) through a two-to-four connector and electrically connected to the discharge interface A. The control module 40 is a vehicle control unit (VCU for short), which is responsible for collecting and processing various sensor data to control the operation of the vehicle.

[0045] Exemplarily, the vehicle discharge system may further include a high-voltage power battery, and OBC10 is electrically connected to the high-voltage power battery. OBC10 is used to convert the direct current provided by the high-voltage power battery into alternating current output to achieve vehicle discharge.

[0046] Optionally, the working states of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 include a non-working state and a discharge state. The control instruction includes a first on-off control instruction and a second on-off control instruction, and the control module 40 is used to:

[0047] When the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 are both in a non-working state, or when the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 are both in a discharge state, a first on-off control instruction is sent to the control unit 13, and the first on-off control instruction is used to instruct the control unit 13 to control the AC relay 12 to disconnect.

[0048] When one of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is in the discharge state, a second on-off control instruction is sent to the control unit 13 , and the second on-off control instruction is used to instruct the control unit 13 to control the AC relay 12 to be connected.

[0049] Due to the different requirements for in-vehicle discharge and out-vehicle discharge, when the vehicle is in the state of in-vehicle power consumption and out-vehicle discharge at the same time, the power system needs to meet two completely different requirements at the same time, which may lead to uneven distribution of power resources and reduced efficiency, and may also cause overload of the vehicle power system. Therefore, in order to ensure the safety of the equipment, in this embodiment, in-vehicle discharge and out-vehicle discharge will not be carried out at the same time. That is, usually only one of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is in the discharge state. When both the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 are in the discharge state, the AC relay 12 is controlled to be disconnected to stop the in-vehicle discharge and the out-vehicle discharge.

[0050] Optionally, the control instruction includes a first current control instruction and a second current control instruction, and the control module 40 is further used to:

[0051] When one of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is in a discharging state, a first current control instruction or a second current instruction is sent to the control unit 13. The first current control instruction is used to instruct the bidirectional on-board charging circuit 11 to output alternating current with a first current value, and the second current control instruction is used to instruct the bidirectional on-board charging circuit 11 to output alternating current with a second current value.

[0052] The first current value is related to the rated power of the discharge socket in the vehicle, and the second current value is related to the rated power of the AC socket outside the vehicle.

[0053] Specifically, when the in-vehicle discharge socket 20 is in a discharge state, a first current control instruction is sent to the control unit, and the first current control instruction is used to instruct the bidirectional vehicle charging circuit 11 to output an alternating current of a first current value; when the out-vehicle AC socket 30 is in a discharge state, a second current control instruction is sent to the control unit, and the second current control instruction is used to instruct the bidirectional vehicle charging circuit 11 to output an alternating current of a second current value. In this embodiment, the voltage required by the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is usually 220V. Therefore, the current value I required under the rated power P of each socket can be determined according to the following formula (1):

[0054] I= P / 220; (1)

[0055] For example, when the rated power of the in-vehicle discharge socket 20 is 2200 W, the corresponding first current value I1=2200 / 220=10 A can be calculated according to the above formula (1); when the rated power of the out-vehicle AC socket 30 is 3520 W, the corresponding second current value I2=3520 / 220=16 A can be calculated according to the above formula (1).

[0056] That is to say, when the in-vehicle discharge socket 20 is in a discharge state, the bidirectional vehicle-mounted charging circuit 11 can output AC power with a current value of 10A, which is transmitted to the in-vehicle discharge socket 20 through the first wire; when the external AC socket 30 is in a discharge state, the bidirectional vehicle-mounted charging circuit 11 can output AC power with a current value of 16A, which is transmitted to the external AC socket 30 through the second wire.

[0057] It should be noted that when the in-vehicle discharge socket 20 is in a discharge state and the external AC socket 30 is in a non-operating state, the current of the first current value output by the bidirectional vehicle-mounted charging circuit 11 is transmitted to the in-vehicle discharge socket 20 through the first wire. Since the external AC socket 30 has no load at this time, the second wire is equivalent to a circuit breaker, and the current will not flow from the second wire to the external AC socket 30. Similarly, when the in-vehicle discharge socket 20 is in a non-operating state and the external AC socket 30 is in a discharge state, the current of the second current value output by the bidirectional vehicle-mounted charging circuit 11 is transmitted to the external AC socket 30 through the second wire, and the current will not flow from the first wire to the in-vehicle discharge socket 20.

[0058] Optionally, the current carrying capacity of the first conductor is greater than the first current value, and the current carrying capacity of the second conductor is greater than the second current value.

[0059] Among them, the current carrying capacity refers to the amount of charge that passes through the conductor cross section of the cable per unit time under specified conditions, that is, the maximum current value that the cable can withstand. Since the cross-sectional area of ​​the cable conductor is related to the current carrying capacity, in one implementation of this embodiment, the cross-sectional area of ​​the cable conductor of the first wire and the second wire can be set so that the current carrying capacity of the first wire and the second wire meets the requirements. For example, when the first current value I1=10A, the cross-sectional area of ​​the cable conductor of the first wire can be set to 2.5mm 2 When the second current value I2 = 16A, the cable conductor cross-sectional area of ​​the second wire can be set to 6mm 2 , so that the current carrying capacity of each wire meets the requirements and the cost can be reduced. In other implementations of this embodiment, the current carrying capacity of the wire can be changed by setting the material of the wire, and the present invention is not limited to this.

[0060] Optionally, the discharge system further includes a micro switch 50 and a discharge meter switch 60. The micro switch 50 is disposed in the in-vehicle discharge socket 20, and is connected to the control unit 13 for communication, and is used to generate a first signal and send it to the control module 40 via the control unit 13, wherein the first signal is used to indicate whether a plug is inserted into the in-vehicle discharge socket 10. The discharge meter switch 60 is disposed on the vehicle control panel, and is connected to the control module 40 for communication, and is used to generate a second signal and send it to the control module 40, wherein the second signal is used to indicate whether the user turns on the discharge meter switch to agree to the in-vehicle discharge function. The control module 40 is also used to determine whether the in-vehicle discharge socket 20 is in a discharge state according to the first signal and the second signal.

[0061] Specifically, the user can select the opening and closing of the discharge meter switch 60 through the vehicle control panel to determine whether to turn on the in-car discharge function. When the user chooses to turn on the discharge meter switch 60, it is determined to turn on the in-car discharge function. At this time, the discharge meter switch 60 is turned on, and the second signal indicates that the user agrees to turn on the in-car discharge function. At the same time, the micro switch 50 is in a normally open state. When a plug is inserted into the in-car discharge socket 10, it means that there is a demand for in-car discharge. At this time, the micro switch 50 is closed, and the first signal indicates that a plug is inserted into the in-car discharge socket 10. When the control module 40 simultaneously obtains the first signal indicating that a plug is inserted into the in-car discharge socket 10 and the second signal indicating that the user agrees to turn on the in-car discharge function, it can be determined that the in-car discharge socket 20 is in a discharge state. Conversely, when the control module 40 obtains the first signal indicating that there is no plug inserted into the in-car discharge socket 10, or obtains the second signal indicating that the user does not agree to turn on the in-car discharge function, it can be determined that the in-car discharge socket 20 is in a non-working state.

[0062] Optionally, the discharge system further includes a vehicle body cover switch 70. The vehicle body cover switch 70 is disposed on the vehicle body cover corresponding to the external AC socket 30, and is communicatively connected to the control module 40, and is used to generate a third signal and send it to the control module 40, the third signal being used to indicate whether the vehicle body cover is closed. The control module 40 is also used to determine whether the external AC socket 30 is in a discharge state according to the third signal.

[0063] Specifically, when the third signal indicates that the vehicle body cover is closed, it means that the user has no intention to charge outside the vehicle at this time, and the control module 40 can determine that the external AC socket 30 is in a non-working state; when the third signal indicates that the vehicle body cover is open, it means that the user has the intention to charge outside the vehicle at this time, and the control module 40 can determine that the external AC socket 30 is in a discharging state.

[0064] In one implementation of this embodiment, the control module 40 can further determine whether the in-vehicle discharge socket 20 is in a discharge state based on the third signal to increase the discharge reliability of the discharge system. When the third signal indicates that the vehicle body cover is open, it means that the user has the intention to charge outside the vehicle at this time. At this time, the control module 40 can determine that the in-vehicle discharge socket 20 is in a non-working state to prevent the in-vehicle discharge socket 20 and the external AC socket 30 from discharging at the same time, causing the vehicle power system to overload. That is to say, when the control module 40 simultaneously obtains the first signal indicating that a plug is inserted into the in-vehicle discharge socket 10, the second signal indicating that the user agrees to turn on the in-vehicle discharge function, and the third signal indicating that the vehicle body cover is closed, it will be determined that the in-vehicle discharge socket 20 is in a discharge state.

[0065] Optionally, the discharge system may further include a plug detection sensor (not shown in the figure), which is disposed in the external AC socket 30 and is used to generate a sixth signal, and the sixth signal is used to indicate whether a plug is inserted into the external AC socket 30. The control module 40 may also synchronously determine whether the external AC socket 30 is in a discharge state based on the third signal and the sixth signal to increase the discharge reliability of the discharge system. Specifically, when the control module 40 simultaneously obtains the third signal indicating that the vehicle body cover is opened and the sixth signal indicating that a plug is inserted into the external AC socket 30, it is determined that the external AC socket 30 is in a discharge state.

[0066] Optional, such as Figure 1 As shown, the discharge system further includes a temperature switch 80 and a temperature sensor 90. The temperature switch 80 is disposed in the in-vehicle discharge socket 20, and is connected to the control unit 13 for communication, and is used to generate a fourth signal, and the fourth signal is used to indicate whether the temperature of the in-vehicle discharge socket 20 is higher than a preset first temperature threshold. The temperature sensor 90 is disposed in the out-vehicle AC socket 30, and is connected to the control unit 13 for communication, and is used to generate a fifth signal, and the fifth signal is used to indicate whether the temperature of the out-vehicle AC socket 30 is higher than a preset second temperature threshold. The control unit 13 is also used to determine whether to control the AC relay 12 to disconnect according to the fourth signal and the fifth signal.

[0067] Specifically, when the control module 13 obtains a fourth signal indicating that the temperature of the in-vehicle discharge socket 20 is higher than a preset first temperature threshold, or obtains a fifth signal indicating that the temperature of the external AC socket 30 is higher than a preset second temperature threshold, it is determined to control the AC relay 12 to be disconnected. By setting the temperature switch 80 and the temperature sensor 90, the temperature of the in-vehicle discharge socket 20 and the external AC socket 30 can be monitored to prevent the socket temperature from being too high, causing the insulating material inside the socket to age and be damaged, thereby causing safety problems such as short circuit and leakage.

[0068] like Figure 1As shown, in this embodiment, OBC10 also includes a first low-voltage signal interface B1 and a second low-voltage signal interface B2, wherein the micro switch 50 can be connected to the first low-voltage signal interface B1 through a signal line, and the temperature switch 80 and the temperature sensor 90 can be connected to the second low-voltage signal interface B2 through a signal line, and the control unit 13 can obtain the relevant signals sent by the micro switch 50, the temperature switch 80 and the temperature sensor 90 through the first low-voltage signal interface B1 and the second low-voltage signal interface B2, wherein the control unit 13 can forward the first signal generated by the micro switch 50 to the control module 40.

[0069] Optionally, the in-vehicle charging socket 20 is further provided with an illumination lamp 21, which is used to light up when the in-vehicle charging socket 20 is in a discharging state, so as to serve as a signal to remind the user that the in-vehicle charging socket 20 has power at this time.

[0070] Based on the same inventive concept, an embodiment of the present invention further provides a vehicle discharging method, which adopts the vehicle discharging system of the above embodiment. The method can be executed by the control module 40 in the above vehicle discharging system. Figure 2 is a flow chart of a vehicle discharging method provided by an embodiment of the present invention, such as Figure 2 As shown, the method includes:

[0071] Step S210: Determine the working status of the discharge socket inside the vehicle and the AC socket outside the vehicle.

[0072] In this embodiment, the working states of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 include a non-working state and a discharge state. The control module 40 can determine whether the in-vehicle discharge socket 20 is in a discharge state according to the first signal sent by the micro switch 50 and the second signal sent by the discharge meter switch 60. The control module can also determine whether the in-vehicle discharge socket 20 is in a discharge state according to the third signal sent by the vehicle body cover switch 70. The control module 40 can determine whether the out-vehicle AC socket 30 is in a discharge state according to the third signal sent by the vehicle body cover switch 70. The control module 40 can also determine whether the out-vehicle AC socket 30 is in a discharge state according to the sixth signal sent by the plug detection sensor combined with the third signal.

[0073] The specific method for determining the working mode can refer to the relevant description of the above-mentioned vehicle discharge system embodiment, and this embodiment will not be repeated here.

[0074] Step S220: Send corresponding control instructions to the control unit according to the working status of the in-vehicle discharge socket and the external AC socket. The control instructions are used to instruct the control unit to control the bidirectional vehicle-mounted charging circuit and the AC relay to distribute the AC power output by the bidirectional vehicle-mounted charging circuit to the in-vehicle discharge socket or the external AC socket.

[0075] In this embodiment, the control instruction includes a first on-off control instruction and a second on-off control instruction, and step S220 may include:

[0076] When the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 are both in a non-working state, or when the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 are both in a discharge state, a first on-off control instruction is sent to the control unit 13, and the first on-off control instruction is used to instruct the control unit 13 to control the AC relay 12 to disconnect.

[0077] When one of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is in the discharge state, a second on-off control instruction is sent to the control unit 13 , and the second on-off control instruction is used to instruct the control unit 13 to control the AC relay 12 to be connected.

[0078] In this embodiment, the control instruction further includes a first current control instruction and a second current control instruction, and step S220 may include:

[0079] When one of the in-vehicle discharge socket 20 and the out-vehicle AC socket 30 is in a discharging state, a first current control instruction or a second current instruction is sent to the control unit 13. The first current control instruction is used to instruct the bidirectional on-board charging circuit 11 to output alternating current with a first current value, and the second current control instruction is used to instruct the bidirectional on-board charging circuit 11 to output alternating current with a second current value.

[0080] The first current value is related to the rated power of the discharge socket in the vehicle, and the second current value is related to the rated power of the AC socket outside the vehicle.

[0081] Specifically, when the discharge socket 20 in the vehicle is in a discharge state, a first current control instruction is sent to the control unit, and the first current control instruction is used to instruct the bidirectional vehicle-mounted charging circuit 11 to output alternating current with a first current value; when the AC socket 30 outside the vehicle is in a discharge state, a second current control instruction is sent to the control unit, and the second current control instruction is used to instruct the bidirectional vehicle-mounted charging circuit 11 to output alternating current with a second current value.

[0082] The specific details of the vehicle discharge system involved in the above-mentioned vehicle discharge method can be understood by corresponding to the relevant descriptions and effects in the above-mentioned vehicle discharge system embodiment, and will not be repeated here.

[0083] Based on the same inventive concept as the above-mentioned vehicle discharge method, the present invention also provides an electronic device, which may include a processor and a memory, wherein the processor and the memory may be connected to each other through a bus or other means. The processor may be a central processing unit (CPU). The processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components and other chips, or a combination of the above-mentioned various types of chips. The memory, as a non-transient computer-readable storage medium, may be used to store non-transient software programs, non-transient computer executable programs and modules, such as program instructions / modules corresponding to the vehicle discharge method in the embodiment of the present invention. The processor executes various functional applications and data processing of the processor by running the non-transient software programs, instructions and modules stored in the memory, that is, realizing the in-vehicle discharge and out-of-vehicle discharge in the above-mentioned method embodiment.

[0084] The memory may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created by the processor, etc. In addition, the memory may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. The one or more modules are stored in the memory, and when executed by the processor, the execution is as follows: Figure 2 The vehicle discharging method in the illustrated embodiment.

[0085] For details of the above electronic equipment, please refer to Figure 1 and Figure 2 The corresponding related descriptions and effects in the illustrated embodiments can be understood and will not be repeated here.

[0086] Based on the same inventive concept as the vehicle discharging method, the present invention further provides a computer-readable storage medium, on which computer instructions are stored, and the computer program instructions are used to enable a computer to execute the vehicle discharging method in the above embodiment.

[0087] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0088] The technical solutions provided in the above embodiments of the present application have at least the following technical effects or advantages:

[0089] A vehicle discharge system method, device, equipment and storage medium provided by an embodiment of the present invention, by setting a single relay and a single discharge interface in a bidirectional on-board charger, and cooperating with a control unit in the bidirectional on-board charger, enables the control module to monitor the working status of the discharge socket in the vehicle and the AC socket outside the vehicle in real time, and sends a control instruction to the control unit according to the actual situation, controls the bidirectional on-board charging circuit and the AC relay, so as to distribute the AC power output by the bidirectional on-board charging circuit to the discharge socket in the vehicle or the AC socket outside the vehicle, ensure the safe and accurate distribution of the AC power, and can efficiently realize the multi-scenario inverter function. Compared with the dual relay system used in the traditional solution, the present invention only uses one AC relay, which reduces the number of components inside the bidirectional on-board charger, thereby reducing the demand for installation space. Due to the reduction in the number of key components such as relays, the vehicle discharge system of the present invention is effectively controlled in terms of manufacturing cost. At the same time, the simplified circuit structure also means that in the subsequent maintenance process, troubleshooting and repair will be more convenient, reducing the complexity and cost of maintenance, and improving user experience and vehicle economy. In summary, the vehicle discharge system of the present invention realizes efficient, flexible, economical and reliable inverter function by optimizing circuit design, reducing the number of components, improving control accuracy, etc., providing strong support for the widespread application of new energy vehicles.

[0090] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0091] Similarly, it should be understood that in order to streamline the present disclosure and aid in understanding one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, this disclosed method should not be interpreted as reflecting the intention that the claimed invention requires more features than those explicitly recited in each claim. More specifically, as reflected in the claims below, inventive aspects lie in less than all the features of the individual embodiments disclosed above. Therefore, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, with each claim itself serving as a separate embodiment of the present invention.

[0092] It should be noted that the above-mentioned embodiments illustrate rather than limit the invention and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims.

Claims

1. A vehicle discharge system, characterized in that: include: A bidirectional on-board charger, comprising a bidirectional on-board charging circuit, an AC relay, a control unit and a discharge interface, wherein the bidirectional on-board charging circuit is electrically connected to the discharge interface via the AC relay, and the control unit is electrically connected to the bidirectional on-board charging circuit and the AC relay; An in-vehicle discharge socket, electrically connected to the discharge interface via a first wire; An AC socket outside the vehicle, electrically connected to the discharge interface via a second wire; A control module is communicatively connected with the control unit, the in-vehicle discharge socket and the out-vehicle AC socket. The control module is used to send corresponding control instructions to the control unit according to the working states of the in-vehicle discharge socket and the out-vehicle AC socket. The control instructions are used to instruct the control unit to control the bidirectional on-vehicle charging circuit and the AC relay to distribute the AC power output by the bidirectional on-vehicle charging circuit to the in-vehicle discharge socket or the out-vehicle AC socket.

2. The vehicle discharge system according to claim 1, characterized in that: The working state includes a non-working state and a discharging state, the control instruction includes a first on-off control instruction and a second on-off control instruction, and the control module is used for: When both the in-vehicle discharge socket and the out-vehicle AC socket are in a non-working state, or both the in-vehicle discharge socket and the out-vehicle AC socket are in a discharge state, sending the first on-off control instruction to the control unit, wherein the first on-off control instruction is used to instruct the control unit to control the AC relay to disconnect; When one of the in-vehicle discharge socket and the out-vehicle AC socket is in a discharge state, the second on-off control instruction is sent to the control unit, and the second on-off control instruction is used to instruct the control unit to control the AC relay to be connected.

3. The vehicle discharge system according to claim 2, characterized in that: The control instruction includes a first current control instruction and a second current control instruction, and the control module is further used for: When one of the in-vehicle discharge socket and the out-vehicle AC socket is in a discharge state, sending the first current control instruction or the second current instruction to the control unit, the first current control instruction is used to instruct the bidirectional on-vehicle charging circuit to output AC power of a first current value, and the second current control instruction is used to instruct the bidirectional on-vehicle charging circuit to output AC power of a second current value; The first current value is related to the rated power of the in-vehicle discharge socket, and the second current value is related to the rated power of the out-vehicle AC socket.

4. The vehicle discharge system according to claim 3, characterized in that: The current carrying capacity of the first conductor is greater than the first current value, and the current carrying capacity of the second conductor is greater than the second current value.

5. The vehicle discharge system according to claim 1, characterized in that: The discharge system further comprises: A micro switch, arranged in the in-vehicle discharge socket, is communicatively connected with the control unit, and is used to generate a first signal and send it to the control module via the control unit, wherein the first signal is used to indicate whether a plug is inserted into the in-vehicle discharge socket; A discharge meter switch, arranged on the vehicle control panel, is communicatively connected with the control module, and is used to generate a second signal and send it to the control module, wherein the second signal is used to indicate whether the user turns on the discharge meter switch to agree to the in-vehicle discharge function; The control module is further used to determine whether the in-vehicle discharge socket is in a discharge state according to the first signal and the second signal.

6. The vehicle discharge system according to claim 1, characterized in that: The discharge system further comprises: A body cover switch, arranged on the body cover corresponding to the external AC socket, is communicatively connected with the control module and is used to generate a third signal and send it to the control module, wherein the third signal is used to indicate whether the body cover is closed; The control module is further used to determine whether the external AC socket is in a discharging state according to the third signal.

7. The vehicle discharge system according to claim 1, characterized in that: The discharge system further comprises: a temperature switch, disposed in the in-vehicle discharge socket, and communicatively connected to the control unit, and configured to generate a fourth signal, wherein the fourth signal is configured to indicate whether the temperature of the in-vehicle discharge socket is higher than a preset first temperature threshold; a temperature sensor, disposed in the external AC socket, and communicatively connected to the control unit, for generating a fifth signal, wherein the fifth signal is used to indicate whether the temperature of the external AC socket is higher than a preset second temperature threshold; The control unit is further used to determine whether to control the AC relay to be disconnected according to the fourth signal and the fifth signal.

8. A vehicle discharging method, characterized in that: Applicable to the vehicle discharging system according to any one of claims 1 to 7, the vehicle discharging method comprising: Determine the working status of the discharge socket inside the vehicle and the AC socket outside the vehicle; According to the working status of the in-vehicle discharge socket and the out-vehicle AC socket, a corresponding control instruction is sent to the control unit, and the control instruction is used to instruct the control unit to control the bidirectional vehicle-mounted charging circuit and the AC relay to distribute the AC power output by the bidirectional vehicle-mounted charging circuit to the in-vehicle discharge socket or the out-vehicle AC socket.

9. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the vehicle discharging method as claimed in claim 8 by executing the computer instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the vehicle discharging method of claim 8.

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