A charge and discharge control method and device

Abstract

The application discloses a kind of charge-discharge control method and device.A switch circuit for connecting the electrical connection between external charging power supply and AC charging socket is arranged in vehicle bidirectional charger.In response to the electrical connection between vehicle and external charging power supply through AC charging socket is established, the state information sent by external charging power supply is received through the electrical connection.Then, the control instruction input by user based on the state information is received.Finally, the vehicle bidirectional charger is controlled to charge the vehicle battery with AC, and in response to the received control instruction, if it is determined that the control instruction is the instruction to start the charge-discharge co-working mode, the vehicle bidirectional charger is controlled to start the switch circuit, so that the external charging power supply discharges AC to at least one electrical equipment connected to the vehicle AC discharge socket.The method can charge the vehicle battery with AC by the vehicle bidirectional charger at the same time, and discharge AC to the vehicle AC discharge socket by the external charging power supply.

Description

Technical Field

[0001] This specification relates to the field of electric vehicle technology, and in particular to a charging and discharging control method and device. Background Technology

[0002] Currently, the on-board bidirectional charger (OBC) of electric vehicles cannot discharge AC power to the on-board AC discharge socket during the AC charging process of the vehicle battery. This means that on-board devices that require uninterrupted power supply (such as on-board refrigerators) cannot be used when the electric vehicle is AC charging, thus reducing the user experience. Summary of the Invention

[0003] This specification provides a charging and discharging control method, apparatus, electronic device, and machine-readable storage medium for simultaneously controlling an on-board bidirectional charger to AC charge an on-board battery and AC discharging an on-board AC discharge socket via an external charging power supply.

[0004] The following technical solution is adopted in this specification:

[0005] This specification provides a charging and discharging control method. The vehicle includes an on-board battery, an AC charging socket, an on-board AC discharging socket, and an on-board bidirectional charger (OBC). The on-board bidirectional charger includes a switching circuit for connecting an external charging power source to the AC charging socket. The method includes:

[0006] Detect whether the vehicle has established an electrical connection with the external charging power source through the AC charging socket;

[0007] In response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket, the status information sent by the external charging power source is received through the electrical connection.

[0008] The received status information is output to the user, and control commands input by the user based on the status information are received.

[0009] The system controls the on-board bidirectional charger to perform AC charging on the on-board battery; in response to the received control command, if the control command is determined to be an instruction to enable the charging and discharging co-operating mode, the system controls the on-board bidirectional charger to execute the instruction to enable the charging and discharging co-operating mode and turn on the switching circuit, so that the external charging power supply can perform AC discharge on at least one electrical device connected to the on-board AC discharge socket.

[0010] Optionally, before receiving the control command input by the user based on the status information, the method further includes:

[0011] Receive power allocation instructions sent by the user;

[0012] In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket.

[0013] Controlling the on-board bidirectional charger to AC charge the on-board battery, in response to the received control command, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, controlling the on-board bidirectional charger to execute the instruction to activate the charging and discharging co-operating mode to open the switching circuit, so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket, including:

[0014] The on-board bidirectional charger is controlled to AC charge the on-board battery according to the charging power for AC charging of the on-board battery.

[0015] In response to the received control command, if it is determined that the control command is an instruction to enable the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the instruction to enable the charging and discharging co-operating mode and turn on the switching circuit, so that the external charging power supply performs AC discharge on at least one electrical device connected to the on-board AC discharge socket according to the discharge power for performing AC discharge on at least one electrical device connected to the on-board AC discharge socket.

[0016] Optionally, the power allocation instruction includes a first power allocation instruction, which is used for the user to customize the allocation of charging power for AC charging of the vehicle battery and discharge power for AC discharge of at least one electrical device connected to the vehicle AC discharge socket.

[0017] In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket, including:

[0018] If the power allocation instruction is determined to be the first power allocation instruction, in response to the received first power allocation instruction, the output power of the external charging power supply is allocated according to the status information and the first power allocation instruction, and the charging power for AC charging of the vehicle battery and the discharge power that the vehicle AC discharge socket can output are determined.

[0019] Optionally, the power allocation instruction includes a second power allocation instruction, which is used for the vehicle to automatically allocate the charging power for AC charging of the vehicle battery and the discharge power for AC discharge of at least one electrical device connected to the vehicle AC discharge socket.

[0020] In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket, including:

[0021] If the power allocation instruction is determined to be the second power allocation instruction, in response to the received second power allocation instruction, the output power of the external charging power supply is allocated according to the status information, the power of at least one electrical device connected to the vehicle AC discharge socket, and the second power allocation instruction, and the charging power for AC charging of the vehicle battery and the discharge power required by the vehicle AC discharge socket are determined.

[0022] Optionally, the method further includes:

[0023] If the control command is determined to be a command to disable the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the command to disable the charging and discharging co-operating mode and shut down the switching circuit, so that the external charging power supply no longer performs AC discharge to at least one electrical device connected to the on-board AC discharge socket.

[0024] Optionally, the method further includes:

[0025] In response to the vehicle failing to establish an electrical connection with the external charging power source through the AC charging socket, the on-board bidirectional charger is controlled to discharge the on-board AC discharge socket.

[0026] Optionally, the received status information is output to the user, and control commands input by the user based on the status information are received, including:

[0027] The received status information is output to the mobile communication terminal so that the user can input control commands based on the status information output by the mobile communication terminal;

[0028] Receive the control command sent by the mobile communication terminal.

[0029] This specification provides a charging and discharging control device. The vehicle includes an on-board battery, an AC charging socket, an on-board AC discharging socket, and an on-board bidirectional charger (OBC). The on-board bidirectional charger includes a switching circuit for connecting an external charging power source to the AC charging socket. The device includes:

[0030] The detection module is used to detect whether the vehicle has established an electrical connection with the external charging power source through the AC charging socket;

[0031] A receiving module is configured to receive status information sent by the external charging power source in response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket;

[0032] The output module is used to output the received status information to the user and to receive control commands input by the user based on the status information.

[0033] The activation module is used to control the on-board bidirectional charger to AC charge the on-board battery; in response to the received control command, if it is determined that the control command is an instruction to activate the charging and discharging working mode, the switching circuit is activated so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket.

[0034] This specification provides an electronic device, including a communication interface, a processor, a memory, and a bus, wherein the communication interface, the processor, and the memory are interconnected via the bus;

[0035] The memory stores machine-readable instructions, and the processor executes the above-described charge / discharge control method by calling the machine-readable instructions.

[0036] This specification provides a machine-readable storage medium storing machine-readable instructions that, when called and executed by a processor, implement the above-described charge / discharge control method.

[0037] The above-mentioned technical solutions adopted in this specification can achieve the following beneficial effects:

[0038] In the charging and discharging control method provided in this specification, the vehicle includes an on-board battery, an AC charging socket, an on-board AC discharging socket, and an on-board bidirectional charger (OBC). The on-board bidirectional charger includes a switching circuit for connecting the external charging power supply to the AC charging socket. This method can control the on-board bidirectional charger to AC charge the on-board battery. In response to a received control command input by the user based on status information, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to activate the switching circuit, allowing the external charging power supply to AC discharge at least one electrical device connected to the on-board AC discharging socket. Thus, while controlling the on-board bidirectional charger to AC charge the on-board battery, the on-board AC discharging socket is simultaneously AC discharged through the external charging power supply. Attached Figure Description

[0039] The accompanying drawings, which are included to provide a further understanding of this specification and form part of this specification, illustrate exemplary embodiments and are used to explain this specification, but do not constitute an undue limitation thereof. In the drawings:

[0040] Figure 1 This is a schematic diagram illustrating a basic vehicle architecture as an exemplary embodiment;

[0041] Figure 2 This is a flowchart illustrating a charging and discharging control method as an exemplary embodiment;

[0042] Figure 3 This is a schematic diagram illustrating a charging and discharging process in an exemplary embodiment;

[0043] Figure 4 This is a structural diagram of an electronic device containing a charge / discharge control device, as shown in an exemplary embodiment.

[0044] Figure 5 This is a block diagram illustrating a charge / discharge control device in an exemplary embodiment. Detailed Implementation

[0045] To enable those skilled in the art to better understand the technical solutions in this specification, the technical solutions in the embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this specification, and not all embodiments. Based on the embodiments in this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this specification.

[0046] It should be noted that the steps of the corresponding methods are not necessarily performed in the order shown and described in this specification in other embodiments. In some other embodiments, the methods may include more or fewer steps than described in this specification. Furthermore, a single step described in this specification may be broken down into multiple steps in other embodiments; and multiple steps described in this specification may be combined into a single step in other embodiments.

[0047] In practical applications, the on-board bidirectional charger (OBC) of electric vehicles cannot discharge AC power to the on-board AC discharge socket during the AC charging process of the vehicle battery. This means that on-board devices that require uninterrupted power supply (such as on-board refrigerators) cannot be used when the electric vehicle is AC charging, thus reducing the user experience.

[0048] Based on this, this specification proposes a technical solution that includes a switching circuit in the on-board bidirectional charger for connecting the external charging power supply and the AC charging socket. Thus, while controlling the on-board bidirectional charger to AC charge the vehicle battery, the switch circuit of the on-board bidirectional charger is activated to AC discharge at least one electrical device connected to the on-board AC discharge socket through the external charging power supply.

[0049] In the embodiments described in this specification, the vehicle includes: a vehicle control unit (VCU), an on-board charger (OBC), a human-machine interface (MMI), a battery management system (BMS), an AC charging socket, a telematics box (TBOX), and a gateway (GW).

[0050] Please see Figure 1 , Figure 1 This is a schematic diagram illustrating a basic vehicle architecture, as shown in an exemplary embodiment.

[0051] exist Figure 1 In the process of discharging, the vehicle control system can be used to participate in vehicle-related controls, such as vehicle power-on / off control and engine control.

[0052] The on-board bidirectional charger can be used to convert AC power input from an external charging power source into DC power to charge the vehicle battery, or to convert DC power output from the vehicle battery into AC power to discharge at least one electrical device connected to the vehicle's AC discharge socket.

[0053] The battery management system can be used to participate in battery-related control during the discharge process. For example, it can send AC charging requests and related signals to a bidirectional on-board charger.

[0054] Remote communication terminals can be used for information transmission between cloud service systems and vehicles to transmit status information.

[0055] A gateway can be used to forward data and convert protocols with the vehicle control system, human-machine interface system, battery management system, remote communication terminal, and on-board bidirectional charger, enabling communication between the vehicle control system, human-machine interface system, battery management system, remote communication terminal, and on-board bidirectional charger.

[0056] An AC charging socket can be used to connect an AC charging plug, establishing an electrical connection between the vehicle and an external charging power source to enable power transmission and signal transmission.

[0057] The human-machine interaction system can be used to display vehicle information and external charging power information, and provide human-machine interaction.

[0058] In practical applications, users can enable or disable the charging and discharging co-operating mode via the vehicle's human-machine interface system. However, this requires the user to be in the vehicle; when the user is away from the vehicle, they cannot use the human-machine interface system to enable or disable the charging and discharging co-operating mode.

[0059] Based on this, a communication connection is established between the vehicle and the mobile communication terminal, enabling users to remotely control the vehicle, view its status information, and remotely turn the charging and discharging working mode on or off using the mobile communication terminal.

[0060] The cloud service system can be used for information transmission between mobile communication terminals and vehicles. With user authorization, the cloud service system can record the vehicle's historical charging and discharging data, process this data, and plan the user's trip.

[0061] Please combine Figure 1 ,refer to Figure 2 This specification provides a detailed description of the technical solutions provided in each embodiment.

[0062] Figure 2 This is a flowchart illustrating a charging and discharging control method as an exemplary embodiment, specifically including the following steps:

[0063] S200: Detect whether the vehicle has established an electrical connection with the external charging power source through the AC charging socket.

[0064] S202: In response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket, the status information sent by the external charging power source is received through the electrical connection.

[0065] S204: Output the received status information to the user and receive the control command input by the user based on the status information.

[0066] S206: Control the on-board bidirectional charger to AC charge the on-board battery; in response to the received control command, if it is determined that the control command is an instruction to enable the charging and discharging working mode, control the on-board bidirectional charger to execute the instruction to enable the charging and discharging working mode and turn on the switching circuit, so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket.

[0067] In the embodiments described in this specification, the vehicle includes an on-board battery, an AC charging socket, an on-board AC discharging socket, and an on-board bidirectional charger (OBC). The on-board bidirectional charger is provided with a switching circuit for connecting the external charging power supply and the AC charging socket.

[0068] In practical applications, a bidirectional on-board charger includes one AC port and one high-voltage DC port. When operating as an on-board charger, the AC port connects to an external charging power source, and the high-voltage DC port connects to the vehicle battery, allowing the external power source to AC charge the vehicle battery. When operating as an on-board inverter, the AC port connects to the vehicle's AC discharge socket, and the high-voltage DC port connects to the vehicle battery, allowing the external charging power source to AC discharge at least one device connected to the vehicle's AC discharge socket. It can be seen that when the bidirectional on-board charger is AC charging the vehicle battery, it cannot AC discharge at least one device connected to the vehicle's AC discharge socket. Similarly, when the bidirectional on-board charger is AC discharging at least one device connected to the vehicle's AC discharge socket, it cannot AC charge the vehicle battery.

[0069] Based on this, a switching circuit is provided in the vehicle bidirectional charger to connect the external charging power supply and the AC charging socket. If it is determined to start the charging and discharging working mode, the switching circuit of the vehicle bidirectional charger is turned on. While controlling the vehicle bidirectional charger to AC charge the vehicle battery, at least one electrical device connected to the vehicle AC discharge socket is AC discharged through the external charging power supply.

[0070] In the embodiments described in this specification, the battery management system can detect whether the vehicle has established an electrical connection with an external charging power source through an AC charging socket. The external charging power source can refer to an AC charging station.

[0071] In response to the vehicle establishing an electrical connection with an external charging power source via an AC charging socket, the system receives status information transmitted by the external charging power source through this connection. This status information may include the operating status and output power of the external charging power source. For example, the status information may include a CC signal and a CP signal. The CC signal indicates the maximum rated output power of the external charging power source. The CP signal indicates the maximum output power that the external charging power source can currently output.

[0072] The battery management system can receive electrical signals encoded based on status information transmitted from an external charging power source via an electrical connection, and decode the electrical signals to obtain status information.

[0073] For example, an external charging power source can encode status information into electrical signals and send these signals to the battery management system via an electrical connection. The battery management system can then receive the electrical signals sent by the external charging power source via the electrical connection and decode them to obtain the status information sent by the external charging power source.

[0074] It should be noted that the status information of the external charging power supply can also be viewed through the application corresponding to the external charging power supply.

[0075] Then, the human-computer interaction system can output the received status information to the user and receive control commands input by the user based on the status information.

[0076] Finally, the on-board bidirectional charger is controlled to AC charge the vehicle battery. In response to the received control command, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the instruction to activate the charging and discharging co-operating mode and open the switching circuit, so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket.

[0077] If the control command is determined to be a command to disable the combined charging and discharging mode, the on-board bidirectional charger is controlled to execute the command to disable the combined charging and discharging mode and shut down the switching circuit, so that the external charging power supply no longer performs AC discharge to at least one electrical device connected to the on-board AC discharge socket.

[0078] In the embodiments described in this specification, before the vehicle sends the control command to the external charging power source via electrical connection, it can first conduct a handshake confirmation of the charging and discharging configuration information with the external charging power source via electrical connection. After the handshake confirmation of the charging and discharging configuration information is completed, the control command is then sent to the external charging power source via electrical connection.

[0079] Handshake confirmation of configuration information refers to the process by which the vehicle battery and the external charger exchange configuration information to confirm each other's parameter settings and functional support, ensuring that they can communicate and cooperate correctly. Through the handshake process, the vehicle battery and the external charger can exchange and verify configuration information to ensure that both have the necessary functional support and parameter settings.

[0080] In practical applications, users can enable or disable the charging and discharging co-operating mode via the vehicle's human-machine interface system. However, this requires the user to be in the vehicle; when the user is away from the vehicle, they cannot use the human-machine interface system to enable or disable the charging and discharging co-operating mode.

[0081] Based on this, a communication connection is established between the vehicle and the mobile communication terminal, enabling users to remotely control the vehicle, view its status information, and remotely turn the charging and discharging working mode on or off using the mobile communication terminal.

[0082] In the embodiments described in this specification, the on-board bidirectional charger outputs the received status information to the mobile communication terminal, so that the user can input control commands based on the status information output by the mobile communication terminal.

[0083] Then, the vehicle can receive control commands sent by the mobile communication terminal to control the on-board bidirectional charger to AC charge the on-board battery. If the control command is determined to be a command to activate the charging and discharging working mode, the switching circuit is activated to allow the external charging power supply to AC discharge at least one electrical device connected to the on-board AC discharge socket.

[0084] Specifically, the on-board bidirectional charger can output the received status information to the gateway, which then forwards the data to the remote communication terminal. The remote communication terminal then sends the data to the cloud service system, and finally, the cloud service system sends it to the mobile communication terminal for display to the user.

[0085] Next, the remote communication terminal receives the control command input by the user based on status information from the mobile communication terminal, sends the control command to the gateway, and then the gateway forwards it to the on-board bidirectional charger. If the control command is determined to be a command to enable the charging and discharging working mode, the on-board bidirectional charger activates the switching circuit, allowing the external charging power supply to perform AC discharge on at least one electrical device connected to the on-board AC discharge socket.

[0086] In practical applications, the output power of external charging power sources is limited. If the output power of external charging power sources is not properly allocated, it may reduce the charging efficiency of the vehicle bidirectional charger for AC charging of the vehicle battery, or prevent the normal use of at least one electrical device connected to the vehicle's AC discharge socket.

[0087] Based on this, the vehicle can receive power allocation commands sent by the user and allocate the output power of the external charging power source, thereby improving the charging efficiency of the on-board bidirectional charger for AC charging of the on-board battery and ensuring the normal use of at least one electrical device connected to the on-board AC discharge socket.

[0088] In the embodiments of this specification, the AC charging circuit of the on-board bidirectional charger for AC charging the on-board battery is equipped with a first current sensor and a first voltage sensor, and the AC discharge circuit for AC discharging at least one electrical device connected to the on-board AC discharge socket is equipped with a second current sensor and a second voltage sensor. The vehicle can calculate in real time the charging power for AC charging the on-board battery and the discharge power for AC discharging at least one electrical device connected to the on-board AC discharge socket based on the first current sensor, the first voltage sensor, the second current sensor, and the second voltage sensor.

[0089] Next, the human-machine interface system can receive power allocation commands sent by the user. Alternatively, the mobile communication terminal can also receive power allocation commands from the user and send them to the remote communication terminal, which then sends the commands to the gateway, which in turn forwards them to the on-board bidirectional charger.

[0090] In response to a received power allocation command, the on-board bidirectional charger can allocate the output power of the external charging power source to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle's AC discharge socket. Specifically, the on-board bidirectional charger can allocate the output power of the external charging power source according to the power allocation command.

[0091] Then, according to the charging power for AC charging of the vehicle battery, the on-board bidirectional charger is controlled to AC charge the vehicle battery.

[0092] In response to the received control command, if the control command is determined to be a command to enable the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the command to enable the charging and discharging co-operating mode and open the switching circuit, so that the external charging power supply performs AC discharge on at least one electrical device connected to the on-board AC discharge socket according to the discharge power for AC discharge on at least one electrical device connected to the on-board AC discharge socket.

[0093] Please see Figure 3 , Figure 3 This is an exemplary embodiment illustrating a process diagram of charge and discharge working together.

[0094] exist Figure 3In step 300, the process begins. The vehicle's overall system is in the initialization state.

[0095] Step 301: Connect the AC charging socket to an external charging power source.

[0096] Step 302: The battery management system checks whether the AC charging socket is successfully connected to the external charging power source. If the AC charging socket is successfully connected to the external charging power source, proceed to step 303. If the AC charging socket is not successfully connected to the external charging power source, proceed to step 301.

[0097] Step 303: The battery management system receives status information sent by the external charging power source and forwards it to the human-machine interface system for output to the user through the gateway. Alternatively, the battery management system receives status information sent by the external charging power source, the gateway forwards the data to the remote communication terminal, the remote communication terminal sends it to the cloud service system, and then the cloud service system sends it to the mobile communication terminal for display to the user.

[0098] Step 304: The vehicle control system controls the vehicle to put it into a prohibited driving state.

[0099] Step 305: The human-machine interface system receives the power allocation command sent by the user and sends it to the on-board bidirectional charger. Alternatively, the mobile communication terminal can receive the power allocation command sent by the user, send it to a remote communication terminal, which then sends it to the gateway, which in turn forwards it to the on-board bidirectional charger.

[0100] Step 306: The battery management system detects whether the external charging power source is discharging AC power into the vehicle's AC discharge socket. If the external charging power source is not discharging AC power into the vehicle's AC discharge socket, proceed to step 307. If the external charging power source is discharging AC power into the vehicle's AC discharge socket, proceed to step 308.

[0101] Step 307: Control the on-board bidirectional charger to AC charge the on-board battery.

[0102] Step 308: While controlling the on-board bidirectional charger to AC charge the on-board battery according to the charging power for AC charging the on-board battery, at least one electrical device connected to the on-board AC discharge socket is AC discharged through an external charging power source according to the discharge power for AC discharge of at least one electrical device connected to the on-board AC discharge socket.

[0103] Step 309: Detect whether a command to activate the combined charging and discharging mode is received during the AC charging process of the on-board bidirectional charger for the vehicle battery. If a command to activate the combined charging and discharging mode is received, proceed to step 308. If no command to activate the combined charging and discharging mode is received, proceed to step 307.

[0104] It should be noted that the AC charging circuit and AC discharging circuit have hardware detection and protection functions such as overcurrent, overtemperature, leakage current, and insulation, and can perform real-time detection of circuit working status and fault detection.

[0105] In the embodiments described in this specification, the power allocation instruction includes a first power allocation instruction. This first power allocation instruction is used by the user to allocate the charging power for AC charging of the vehicle battery and the discharge power for AC discharge of at least one electrical device connected to the vehicle's AC discharge socket.

[0106] If the power allocation command is determined to be the first power allocation command, in response to the received first power allocation command, the output power of the external charging power source is allocated according to the status information and the first power allocation command, and the charging power for AC charging of the vehicle battery and the discharge power that the vehicle AC discharge socket can output are determined.

[0107] For example, a user can set the charging power for AC charging of the vehicle battery to 70% of the output power of the external charging power source, and set the discharge power for AC discharging of at least one electrical device connected to the vehicle's AC discharge socket to 30% of the output power of the external charging power source, based on the output power of the external charging power source.

[0108] For example, if the output power of the external charging power supply is 1000W, the user can set the charging power for AC charging of the vehicle battery to 700W, calculate the remaining output power of the external charging power supply to be 300W, and set the discharge power for AC discharge of at least one electrical device connected to the vehicle's AC discharge socket to be 300W.

[0109] It should be noted that users can set the charging power for AC charging of the vehicle battery to the full output power of the external charging power source, and users can also set the discharge power for AC discharge of at least one electrical device connected to the vehicle's AC discharge socket to the full output power of the external charging power source.

[0110] In the embodiments described herein, the power allocation command includes a second power allocation command. This second power allocation command is used by the vehicle to automatically allocate the charging power for AC charging of the on-board battery and the discharge power for AC discharge of at least one electrical device connected to the on-board AC discharge socket.

[0111] If the power allocation command is determined to be the second power allocation command, in response to the received second power allocation command, the output power of the external charging power source is allocated according to the status information, the power of at least one electrical device connected to the vehicle AC discharge socket, and the second power allocation command, and the charging power for AC charging of the vehicle battery and the discharge power required by the vehicle AC discharge socket are determined.

[0112] For example, the external charging power supply has an output power of 1000W, and the power of device A connected to the vehicle's AC discharge socket is 100W, while the power of device B is 200W. The vehicle allocates 700W of charging power to the vehicle battery for AC charging. The vehicle allocates 300W of discharging power to the device connected to the vehicle's AC discharge socket for AC discharging.

[0113] In the embodiments described in this specification, in response to the vehicle not establishing an electrical connection with an external charging power source through the AC charging socket, the on-board bidirectional charger is controlled to discharge the on-board AC discharge socket. That is, when the vehicle is not establishing an electrical connection with an external charging power source through the AC charging socket, the on-board AC discharge socket is powered by the vehicle battery. When the vehicle establishes an electrical connection with an external charging power source through the AC charging socket, the on-board AC discharge socket is powered by the external charging power source.

[0114] As can be seen from the above method, the vehicle includes an on-board battery, an AC charging socket, an on-board AC discharging socket, and an on-board bidirectional charger (OBC). The on-board bidirectional charger includes a switching circuit for connecting the external charging power supply to the AC charging socket. This method can control the on-board bidirectional charger to AC charge the on-board battery. In response to a received control command input by the user based on status information, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, the switching circuit is activated, allowing the external charging power supply to AC discharge at least one electrical device connected to the on-board AC discharging socket. Therefore, while the on-board battery is AC charging, the on-board AC discharging socket can simultaneously perform AC discharging.

[0115] Corresponding to the embodiments of the above-described charge-discharge control method, this specification also provides an embodiment of a charge-discharge control device.

[0116] Please see Figure 4 , Figure 4This is a structural diagram of an electronic device containing a charging and discharging control device, as illustrated in an exemplary embodiment. At the hardware level, the device includes a processor 402, an internal bus 404, a network interface 406, memory 408, and non-volatile memory 410, and may also include other necessary hardware. One or more embodiments of this specification can be implemented in software, for example, the processor 402 reads the corresponding computer program from the non-volatile memory 410 into memory 408 and then runs it. Of course, besides software implementation, one or more embodiments of this specification do not exclude other implementation methods, such as logic devices or a combination of hardware and software, etc. That is to say, the execution entity of the following processing flow is not limited to individual logic units, but can also be hardware or logic devices.

[0117] Please see Figure 5 , Figure 5 This is a block diagram illustrating a charge / discharge control device as an exemplary embodiment. This charge / discharge control device can be applied to, for example... Figure 4 The electronic device shown implements the technical solution of this specification. The charging / discharging control device may include:

[0118] The detection module 500 is used to detect whether the vehicle has established an electrical connection with the external charging power source through the AC charging socket;

[0119] The receiving module 502 is configured to receive status information sent by the external charging power source in response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket.

[0120] The output module 504 is used to output the received status information to the user and to receive control commands input by the user based on the status information.

[0121] The activation module 506 is used to control the on-board bidirectional charger to AC charge the on-board battery; in response to the received control command, if it is determined that the control command is an instruction to activate the charging and discharging working mode, the switching circuit is activated so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket.

[0122] Optionally, the activation module 506 is specifically configured to receive a power allocation command sent by the user, and in response to the received power allocation command, allocate the output power of the external charging power supply to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket. According to the charging power for AC charging of the vehicle battery, the module controls the vehicle bidirectional charger to AC charge the vehicle battery. In response to the received control command, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, the module controls the vehicle bidirectional charger to execute the instruction to activate the charging and discharging co-operating mode and activate the switching circuit, so that the external charging power supply performs AC discharge on at least one electrical device connected to the vehicle AC discharge socket according to the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket.

[0123] Optionally, the power allocation instruction includes a first power allocation instruction, which is used for the user-defined allocation of the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket. The activation module 506 is specifically used to, if it is determined that the power allocation instruction is the first power allocation instruction, in response to the received first power allocation instruction, allocate the output power of the external charging power supply according to the status information and the first power allocation instruction, and determine the charging power for AC charging of the vehicle battery and the discharge power that the vehicle AC discharge socket can output.

[0124] Optionally, the power allocation instruction includes a second power allocation instruction, which is used by the vehicle to automatically allocate the charging power for AC charging of the vehicle battery and the discharge power for AC discharge of at least one electrical device connected to the vehicle AC discharge socket. The activation module 506 is specifically used to, if it is determined that the power allocation instruction is the second power allocation instruction, respond to the received second power allocation instruction, allocate the output power of the external charging power source according to the status information, the power of at least one electrical device connected to the vehicle AC discharge socket, and the second power allocation instruction, and determine the charging power for AC charging of the vehicle battery and the discharge power required by the vehicle AC discharge socket.

[0125] Optionally, the activation module 506 is further configured to, if it is determined that the control command is an instruction to disable the charging and discharging co-operating mode, control the on-board bidirectional charger to execute the instruction to disable the charging and discharging co-operating mode and shut down the switching circuit, so that the external charging power supply no longer performs AC discharge to at least one electrical device connected to the on-board AC discharge socket.

[0126] Optionally, the activation module 506 is further configured to control the on-board bidirectional charger to discharge the on-board AC discharge socket in response to the vehicle not establishing an electrical connection with the external charging power source through the AC charging socket.

[0127] Optionally, the activation module 506 is specifically used to output the received status information to the mobile communication terminal, so that the user can input control commands based on the status information output by the mobile communication terminal and receive the control commands sent by the mobile communication terminal.

[0128] The specific implementation process of the functions and roles of each unit in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0129] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of the solution in this specification according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0130] The systems, devices, modules, or units described in the above embodiments can be implemented by computer chips or entities, or by products with certain functions. A typical implementation device is a computer, which can take the form of a personal computer, laptop computer, cellular phone, camera phone, smartphone, personal digital assistant, media player, navigation device, email sending and receiving device, game console, tablet computer, wearable device, or any combination of these devices.

[0131] In a typical configuration, a computer includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0132] Memory may include non-persistent storage in computer-readable media, such as random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM. Memory is an example of computer-readable media.

[0133] Computer-readable media, including both permanent and non-permanent, removable and non-removable media, can store information using any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, CD-ROM, digital versatile optical disc (DVD) or other optical storage, magnetic tape, disk storage, quantum memory, graphene-based storage media or other magnetic storage devices, or any other non-transferable medium that can be used to store information accessible by a computing device. As defined herein, computer-readable media does not include transient computer-readable media, such as modulated data signals and carrier waves.

[0134] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and corresponding operation entry points are provided for users to choose to authorize or refuse.

[0135] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0136] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0137] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of one or more embodiments of this specification. The singular forms “a,” “described,” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0138] It should be understood that although the terms first, second, third, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of one or more embodiments of this specification, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "in response to a determination," or "when," or "in the event of a determination."

[0139] The above description is merely a preferred embodiment of one or more embodiments of this specification and is not intended to limit the scope of one or more embodiments of this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of one or more embodiments of this specification.

Claims

1. A charging and discharging control method, characterized in that, The vehicle includes an onboard battery, an AC charging socket, an onboard AC discharging socket, and an onboard bidirectional charger (OBC), wherein the onboard bidirectional charger includes a switching circuit; the method includes: Detect whether the vehicle has established an electrical connection with an external charging power source through the AC charging socket; In response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket, the status information sent by the external charging power source is received through the electrical connection. The received status information is output to the user, and control commands input by the user based on the status information are received. The system controls the on-board bidirectional charger to perform AC charging on the on-board battery; in response to the received control command, if the control command is determined to be an instruction to enable the charging and discharging co-operating mode, the system controls the on-board bidirectional charger to execute the instruction to enable the charging and discharging co-operating mode and activate the switching circuit, so that when the AC charging socket is electrically connected to the external charging power supply, the on-board AC discharge socket is powered by the external charging power supply, and the external charging power supply performs AC discharge on at least one electrical device connected to the on-board AC discharge socket.

2. The method as described in claim 1, characterized in that, Before receiving the control command input by the user based on the status information, the method further includes: Receive power allocation instructions sent by the user; In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket. Controlling the on-board bidirectional charger to AC charge the on-board battery, in response to the received control command, if the control command is determined to be an instruction to activate the charging and discharging co-operating mode, controlling the on-board bidirectional charger to execute the instruction to activate the charging and discharging co-operating mode to open the switching circuit, so that the external charging power supply can AC discharge at least one electrical device connected to the on-board AC discharge socket, including: The on-board bidirectional charger is controlled to AC charge the on-board battery according to the charging power for AC charging of the on-board battery. In response to the received control command, if it is determined that the control command is an instruction to enable the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the instruction to enable the charging and discharging co-operating mode and turn on the switching circuit, so that the external charging power supply performs AC discharge on at least one electrical device connected to the on-board AC discharge socket according to the discharge power for performing AC discharge on at least one electrical device connected to the on-board AC discharge socket.

3. The method as described in claim 2, characterized in that, The power allocation instruction includes a first power allocation instruction, which is used for the user to customize the charging power for AC charging of the vehicle battery and the discharge power for AC discharge of at least one electrical device connected to the vehicle AC discharge socket. In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket, including: If the power allocation instruction is determined to be the first power allocation instruction, in response to the received first power allocation instruction, the output power of the external charging power supply is allocated according to the status information and the first power allocation instruction, and the charging power for AC charging of the vehicle battery and the discharge power that the vehicle AC discharge socket can output are determined.

4. The method as described in claim 2, characterized in that, The power allocation instruction includes a second power allocation instruction, which is used for the vehicle to automatically allocate the charging power for AC charging of the vehicle battery and the discharge power for AC discharge of at least one electrical device connected to the vehicle AC discharge socket. In response to the received power allocation command, the output power of the external charging power source is allocated to obtain the charging power for AC charging of the vehicle battery and the discharge power for AC discharging of at least one electrical device connected to the vehicle AC discharge socket, including: If the power allocation instruction is determined to be the second power allocation instruction, in response to the received second power allocation instruction, the output power of the external charging power supply is allocated according to the status information, the power of at least one electrical device connected to the vehicle AC discharge socket, and the second power allocation instruction, and the charging power for AC charging of the vehicle battery and the discharge power required by the vehicle AC discharge socket are determined.

5. The method as described in claim 1, characterized in that, The method further includes: If the control command is determined to be a command to disable the charging and discharging co-operating mode, the on-board bidirectional charger is controlled to execute the command to disable the charging and discharging co-operating mode and shut down the switching circuit, so that the external charging power supply no longer performs AC discharge to at least one electrical device connected to the on-board AC discharge socket.

6. The method as described in claim 1, characterized in that, The method further includes: In response to the vehicle failing to establish an electrical connection with the external charging power source through the AC charging socket, the on-board bidirectional charger is controlled to discharge the on-board AC discharge socket.

7. The method as described in claim 1, characterized in that, The received status information is output to the user, and control commands input by the user based on the status information are received, including: The received status information is output to the mobile communication terminal so that the user can input control commands based on the status information output by the mobile communication terminal; Receive the control command sent by the mobile communication terminal.

8. A charging and discharging control device, characterized in that, The vehicle includes an onboard battery, an AC charging socket, an onboard AC discharging socket, and an onboard bidirectional charger (OBC), wherein the onboard bidirectional charger includes a switching circuit; the device includes: The detection module is used to detect whether the vehicle has established an electrical connection with an external charging power source through the AC charging socket; A receiving module is configured to receive status information sent by the external charging power source in response to the vehicle establishing an electrical connection with the external charging power source through the AC charging socket; The output module is used to output the received status information to the user and to receive control commands input by the user based on the status information. The activation module is used to control the on-board bidirectional charger to AC charge the on-board battery; in response to the received control command, if it is determined that the control command is an instruction to activate the charging and discharging working mode, the switching circuit is activated so that when the AC charging socket is electrically connected to the external charging power supply, the on-board AC discharge socket is powered by the external charging power supply, and the external charging power supply performs AC discharge on at least one electrical device connected to the on-board AC discharge socket.

9. An electronic device, characterized in that, It includes a communication interface, a processor, a memory, and a bus, wherein the communication interface, the processor, and the memory are interconnected via the bus; The memory stores machine-readable instructions, and the processor executes the method according to any one of claims 1 to 7 by invoking the machine-readable instructions.

10. A machine-readable storage medium, characterized in that, The machine-readable storage medium stores machine-readable instructions, which, when invoked and executed by a processor, implement the method described in any one of claims 1 to 7.

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