Vehicle discharge control method, device, equipment and medium

Abstract

The embodiment of the invention discloses a vehicle discharge control method and device, equipment and a medium. The vehicle discharge control method comprises the following steps: in response to a received first request voltage sent by a to-be-charged device, determining a first discharge voltage according to the first request voltage; controlling an engine of the hybrid vehicle to work and dragging a generator to output a first alternating current, and adjusting the inversion characteristic of an inverter according to the first discharge voltage, so that the output voltage of the direct current output end of the inverter is stabilized as the first discharge voltage; and determining that a discharging interface of the hybrid vehicle is connected with a charging interface of the to-be-charged equipment, and controlling a first contactor connected between the direct current output end of the inverter and the discharging interface to be closed so as to charge the to-be-charged equipment according to the first discharging voltage. According to the scheme, the hybrid power vehicle can be used for charging the external high-voltage to-be-charged equipment in a direct-current charging mode, so that the charging speed is high, and the charging efficiency is high.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles and batteries, and in particular to a vehicle discharge control method, device, equipment and medium. Background Art

[0002] Due to the inconvenience of the small number of charging piles for hybrid vehicles, there are situations where one hybrid vehicle charges another hybrid vehicle; there are also situations where one hybrid vehicle charges other external high-voltage devices to be charged. At present, the premise of charging between hybrid vehicles is that both vehicles need to be equipped with a bidirectional on-board charger, so that the DC power provided by the power supply vehicle can be converted into AC power and then transmitted to the vehicle to be charged. However, when using the above-mentioned AC charging method, the maximum power transmitted is limited by the on-board charger, the charging speed is slow, the charging efficiency is low, and the vehicle needs to be equipped with a bidirectional on-board charger, which increases the cost of the vehicle. Summary of the invention

[0003] In order to solve the above technical problems, the present disclosure provides a vehicle discharge control method, device, equipment and medium.

[0004] In a first aspect, the present application provides a vehicle discharge control method, which is executed by controlling a hybrid vehicle, the method comprising:

[0005] In response to receiving a first request voltage sent by the device to be charged, determining a first discharge voltage according to the first request voltage, wherein the first discharge voltage is greater than or equal to the first request voltage;

[0006] Controlling the engine of the hybrid vehicle to operate and drive the generator to output AC power, adjusting the inverter characteristics of the inverter according to the first discharge voltage, and processing the AC power through the inverter to stabilize the voltage value outputted by the DC output terminal of the inverter to the first discharge voltage;

[0007] It is determined that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and a first contactor connected between the DC output terminal of the inverter and the discharge interface is controlled to be closed to charge the device to be charged according to the first discharge voltage.

[0008] Optionally, when receiving the first request voltage sent by the device to be charged, the generator is in a shutdown state;

[0009] Before controlling the engine of the hybrid vehicle to operate and drive the generator to output AC power, the method further includes:

[0010] The second contactor connected between the power battery of the hybrid vehicle and the DC output terminal of the inverter is controlled to be closed, so that the power battery discharges to the inverter, so that the generator is started and then drives the engine to start running.

[0011] Optionally, before adjusting the inverter characteristic of the inverter according to the first discharge voltage, the method further includes:

[0012] Acquiring a battery charging voltage of a power battery of the hybrid vehicle, and controlling a second contactor connected between the power battery and a DC output terminal of the inverter to close;

[0013] adjusting the inverter characteristics of the inverter according to the battery charging voltage so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage;

[0014] Determine that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, and control the second contactor to disconnect.

[0015] Optionally, after charging the device to be charged according to the first discharge voltage, the method further includes:

[0016] Determining the required power of the device to be charged;

[0017] The operating speed of the engine is adjusted according to the required power so that the engine is in an optimal power consumption range.

[0018] Optionally, after controlling the first contactor connected between the DC output terminal of the inverter and the discharge interface to be closed, the method further includes:

[0019] In response to receiving a second request voltage sent by the device to be charged, determining a second discharge voltage according to the second request voltage, wherein the second discharge voltage is greater than or equal to the second request voltage;

[0020] The inverter characteristic of the inverter is adjusted according to the second discharge voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the second discharge voltage, so as to continue to charge the device to be charged according to the second discharge voltage.

[0021] Optionally, after readjusting the inverter characteristic of the inverter according to the second discharge voltage, the method further includes:

[0022] In response to receiving a charging end request sent by the device to be charged, the first contactor is controlled to be disconnected and / or the engine is controlled to be stopped.

[0023] In a second aspect, the present application provides a vehicle discharge control device for controlling a hybrid vehicle to charge an external charging device, comprising:

[0024] A receiving unit, configured to receive a first request voltage sent by the device to be charged, and determine a first discharge voltage according to the first request voltage, wherein the first discharge voltage is greater than or equal to the first request voltage;

[0025] a discharge voltage adjustment unit, used to control the engine of the hybrid vehicle to operate and drive the generator to output AC power, adjust the inverter characteristics of the inverter according to the first discharge voltage, and process the AC power through the inverter to stabilize the voltage value outputted by the DC output terminal of the inverter to the first discharge voltage;

[0026] A charging control unit is used to determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and control the first contactor connected between the DC output end of the inverter and the discharge interface to close, so as to charge the device to be charged according to the first discharge voltage.

[0027] Optionally, the method further comprises: the receiving unit is further configured to obtain the battery charging voltage of the power battery of the hybrid vehicle,

[0028] The charging control unit is also used to control the closing of a second contactor connected between the power battery and the DC output terminal of the inverter;

[0029] The discharge voltage adjustment unit is further used to adjust the inversion characteristics of the inverter according to the battery charging voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage;

[0030] The charging control unit is also used to determine that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, and control the second contactor to disconnect;

[0031] The engine adjustment unit is used to determine the required power of the device to be charged, and adjust the operating speed of the engine according to the required power, so that the engine is in an optimal power consumption range.

[0032] In a third aspect, the present application provides a vehicle discharge control device, including a processor and a memory, wherein the memory is used to store a computer program; when the computer program is loaded by the processor, the processor executes the vehicle discharge control method as described above.

[0033] In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the processor implements the vehicle discharge control method as described above.

[0034] The solution provided by the embodiment of the present disclosure enables a hybrid vehicle to provide stable direct current to charge an external high-voltage device to be charged. This DC charging method solves the problem of slow charging speed and low efficiency of AC charging in the prior art. The DC charging method of this solution can increase the charging speed and improve the charging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0037] Figure 1 A flow chart of a vehicle discharge control method according to an embodiment of the present disclosure;

[0038] Figure 2 is a flow chart of another vehicle discharge control method according to an embodiment of the present disclosure;

[0039] Figure 3 A schematic diagram of the internal discharge structure of a hybrid vehicle according to an embodiment of the present disclosure;

[0040] Figure 4 A schematic diagram of a vehicle discharge control device according to an embodiment of the present disclosure;

[0041] Figure 5 It is a schematic diagram of another vehicle discharge control device according to an embodiment of the present disclosure;

[0042] Figure 6 A schematic diagram of the control device structure provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0043] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0044] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0045] Before introducing a vehicle discharge control method proposed in an embodiment of the present disclosure, a relevant introduction is first made to the current hybrid vehicle and the charging of the external device thereof, so as to facilitate the subsequent understanding of the present solution.

[0046] Before accepting the vehicle discharge control method in the application embodiment, the hybrid vehicle is first explained. The hybrid vehicle mentioned in the embodiment of the present disclosure is a vehicle that can use the electric energy in the power battery to drive the vehicle to travel, and can also use the engine to drive the vehicle directly or indirectly. Hybrid vehicles include parallel hybrid vehicles, series hybrid vehicles and series hybrid vehicles. The extended-range electric vehicle mentioned in daily life is the aforementioned series hybrid vehicle.

[0047] At present, due to the insufficient number of charging piles or the serious power supply of vehicle batteries under special conditions, one hybrid vehicle may need to charge another hybrid vehicle. In other scenarios, hybrid vehicles may be used to charge other external high-voltage charging devices.

[0048] If a hybrid vehicle is needed to charge other devices to be charged, in the related technology, the hybrid vehicle converts the AC power generated by the generator into DC power, and then uses the on-board charger to convert it into 220V AC power to supply the devices to be charged. However, when using the above AC charging method, the maximum power transmitted is limited by the on-board charger, the charging speed is slow, the charging efficiency is low, and the vehicle needs to be equipped with a bidirectional on-board charger, which increases the vehicle cost.

[0049] A vehicle discharge control method proposed in an embodiment of the present disclosure enables a hybrid vehicle to provide stable direct current to charge an external high-voltage device to be charged, and does not require a bidirectional on-board charger, reducing vehicle manufacturing costs; and the use of a direct current charging method can increase the charging speed and improve the charging efficiency, solving the problem that the maximum power transmitted during AC charging is limited by the on-board charger, resulting in a slow charging speed and low charging efficiency.

[0050] Figure 1 is a flow chart of a vehicle discharge control method according to an embodiment of the present disclosure, such as Figure 1 As shown, a vehicle discharge control method S101-S103 is provided in an embodiment of the present disclosure.

[0051] The vehicle discharge control method in the embodiment of the present disclosure may be executed by a vehicle controller in a hybrid vehicle, or may be executed by a power domain controller in a hybrid vehicle. The following takes a vehicle as an example to analyze the vehicle discharge control method in the embodiment of the present disclosure.

[0052] S101: In response to receiving a first request voltage sent by a device to be charged, determining a first discharge voltage according to the first request voltage, the first discharge voltage being greater than or equal to the first request voltage.

[0053] In the embodiment of the present disclosure, a signal receiving device is provided inside the hybrid vehicle. In a specific implementation, the signal receiving device may be a Bluetooth signal receiver or a power carrier signal receiver.

[0054] The signal receiving device can receive the first request voltage sent by the device to be charged. The voltage value of the first request voltage can be the battery bus voltage value of the external high-voltage device to be charged, ensuring that the voltage value required by the device to be charged can be provided.

[0055] After receiving the first request voltage and sending it to the vehicle controller, the vehicle controller can determine the voltage value of the first discharge voltage according to the first request voltage. Because it is necessary to ensure that the discharge voltage of the hybrid vehicle can reach the charging voltage that the device to be charged can receive, the receiving device inside the hybrid vehicle will set the voltage value of the first discharge voltage to be equal to or greater than the voltage value of the first request voltage.

[0056] S102: Controlling the engine of the hybrid vehicle to operate and drive the generator to output AC power, adjusting the inverter characteristics of the inverter according to the first discharge voltage, and processing the AC power through the inverter to stabilize the voltage value output by the DC output terminal of the inverter to the first discharge voltage.

[0057] In the disclosed embodiment, the hybrid vehicle includes an engine, a generator and an inverter. When the engine is running, it can drive the generator to output AC power, and the AC power output by the engine is transmitted to the input end of the inverter, and is converted into DC power after being inverted by the inverter.

[0058] In the disclosed embodiment, the vehicle controller can control the engine operation of the hybrid vehicle to control and adjust the power generation state of the generator. In addition, the vehicle controller can also control the inverter to adjust the inverter characteristics of the inverter.

[0059] In the disclosed embodiment, the vehicle controller can control the inverter to adjust the inverter characteristics according to the voltage value of the first discharge voltage, so that the voltage value output by the DC output terminal of the inverter can be stabilized at the first discharge voltage, ensuring that the voltage value required by the device to be charged can be provided, and preparations are made before charging the device to be charged.

[0060] S103: Determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and control a first contactor connected between the DC output terminal of the inverter and the discharge interface to close, so as to charge the device to be charged according to a first discharge voltage.

[0061] The device to be charged mentioned in the present application may be a high-voltage device to be charged, and an embodiment of the present application proposes controlling a hybrid vehicle to supply power to other vehicles.

[0062] In the disclosed embodiment, the hybrid vehicle has a DC discharge interface. When charging an external receiving charging device, the DC discharge interface and the charging interface of the device to be charged can be connected by a high-voltage line. In addition, a first contactor is provided between the DC discharge interface and the output end of the inverter. When not charging, the first contactor is in a disconnected state.

[0063] After the voltage of the inverter stabilizes to the first voltage, and after determining that the discharge interface and the charging interface of the device to be charged are connected and in a safe state, the vehicle controller controls the first contactor between the DC output terminal of the inverter and the discharge interface to close, so that the DC power released by the hybrid vehicle can be smoothly output to the device to be charged, ensuring the smooth progress of the charging process. Using the embodiment of the present disclosure, after the hybrid vehicle uses the engine to generate electricity, it uses DC charging to charge the external charging device, without converting it into AC power and then using AC power to charge the external charging device, which can reduce heat loss during the voltage conversion process. In addition, using the embodiment of the present disclosure, there is no need to use an on-board charger during the charging process, and in certain high-power output conditions, the discharge power will not be limited by the on-board charger.

[0064] Figure 2 FIG. 1 is a flow chart of another vehicle discharge control method according to an embodiment of the present disclosure, such as Figure 2 As shown, a vehicle discharge control method provided by an embodiment of the present disclosure includes S201-S206.

[0065] S201: Close the second contactor connected between the power battery and the DC output terminal of the inverter, adjust the inverter characteristics according to the battery charging voltage, and stabilize the output voltage of the DC output terminal of the inverter to the battery charging voltage.

[0066] In the disclosed embodiment, before charging the external charging device, when the engine is not in operation, the vehicle controller can also obtain the battery charging voltage of the hybrid vehicle power battery; then adjust the inverter output characteristics according to the battery charging voltage so that the inverter output voltage is the battery charging voltage. Then control the second contactor connected between the power battery and the DC output terminal to close so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage. The purpose of this is to make the engine work in a constant power mode so that the DC output terminal of the inverter can output a stable voltage value, so as to prevent the engine from suddenly working at high speed, causing the inverter to output high voltage, which will cause damage to the equipment and result in failure to complete the charging process smoothly.

[0067] S202: When the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, the second contactor is controlled to be disconnected, the inverter characteristics of the inverter are adjusted according to the first discharge voltage, and the inverter processes the AC power to stabilize the voltage value output by the DC output terminal of the inverter to the first discharge voltage.

[0068] In the disclosed embodiment, the vehicle controller can monitor the output voltage value of the inverter DC output terminal in real time. When it is monitored that the output voltage value of the inverter DC output terminal is the same as the battery charging voltage and does not change much, it can be determined that the output voltage of the inverter DC output terminal is stable as the battery charging voltage. At this time, the controller controls the second contactor to disconnect, so that the power battery stops discharging to the inverter; at this time, the discharge voltage adjustment device controls the inverter to adjust the inverter characteristics according to the first discharge voltage, so that the voltage value output from the DC output terminal after the inverter processes the AC power is stable to the first discharge voltage. With this solution, the engine can be in a stable working state before discharging to the external device to be charged, avoiding the problem of engine shutdown caused by excessive load.

[0069] S203: Determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and control a first contactor connected between the DC output terminal of the inverter and the discharge interface to be closed, so as to charge the device to be charged according to a first discharge voltage.

[0070] S204: Determine the power demand of the device to be charged; adjust the operating speed of the engine according to the power demand so that the engine is in an optimal power consumption range.

[0071] The hybrid vehicle is equipped with an engine adjustment device, which can adjust the engine operating speed of the hybrid vehicle according to the actual power requirement of the device to be charged, so that the engine always operates in the optimal power consumption range, thereby reducing unnecessary energy loss and improving the efficiency of the entire charging process.

[0072] S205: In response to receiving a second request voltage sent by the device to be charged, determining a second discharge voltage according to the second request voltage, adjusting the inverter characteristics of the inverter according to the second discharge voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the second discharge voltage, so as to continue charging the device to be charged according to the second discharge voltage.

[0073] In a specific implementation, the required charging voltage of the device to be charged may change according to the different charging characteristics of the device to be charged. During the charging process, the hybrid vehicle needs to adjust the second discharge voltage value outputted to the outside according to the different charging voltage values ​​requested by the device to be charged.

[0074] In the embodiment of the present disclosure, after the signal receiving device receives the second request voltage sent by the device to be charged, the second request signal is sent to the vehicle controller. Subsequently, the vehicle controller determines a second discharge voltage equal to or greater than the second request voltage according to the second request voltage; and then adjusts the inverter characteristics with the second discharge voltage so that the voltage value output by the DC output terminal of the inverter can be stabilized to the second discharge voltage, so as to charge the device to be charged with the second discharge voltage.

[0075] S206: In response to receiving a charging end request sent by the device to be charged, controlling the first contactor to be disconnected and / or controlling the engine to be stopped.

[0076] In the embodiment of the present disclosure, if the device to be charged determines that charging has been completed, a charging end request will be sent to the hybrid vehicle. Upon receiving the charging end request sent by the device to be charged, the vehicle controller determines that it can stop charging the device to be charged. In the embodiment of the present disclosure, there are three methods for the vehicle controller to control the hybrid vehicle to stop discharging: the first is that the charging control device controls the first contactor to disconnect to cut off the current transmission path; the second is that the charging control device controls the engine to stop to stop the power generation source; the third is that the charging control device controls the first contactor to disconnect and controls the engine to stop. This avoids continuing to input current to the battery when it is already fully charged, thereby protecting the battery's performance and life.

[0077] The above scheme provides a vehicle discharge control method that is implemented when the engine is already in a running state. If the engine is in a stopped state, the vehicle controller also needs to control the engine to start, and then perform the above-mentioned operation steps. In a specific implementation, the vehicle controller controls the second contactor between the power battery and the DC output terminal of the hybrid vehicle to close, so that the power battery discharges to the inverter, so that the generator starts and then drives the engine to start running until the engine can run at idle speed.

[0078] Figure 3 Schematic diagram of the internal discharge structure of a hybrid vehicle according to an embodiment of the present disclosure, as shown in Figure 3 As shown, its main structure includes: power battery 301, second contactor 302, inverter 303, generator 304, engine 305, first contactor 306, discharge interface 307, vehicle controller 308. The vehicle controller 308 is used to communicate with the device to be charged through Bluetooth and receive the corresponding voltage signal.

[0079] according to Figure 3As shown, before controlling the engine of the hybrid vehicle to work and drive the generator to output AC power, the internal discharge process of the hybrid vehicle is as follows: by closing the second contactor 302, the power battery 301 can discharge to the inverter 303, and according to the inversion characteristics of the inverter 303, the DC power output by the power battery 301 is converted into AC power and transmitted to the generator to drive the engine 305 to start working. When the engine starts working, it will drive the generator 304 to output AC power. According to the inversion characteristics of the inverter 303, the inverter 303 converts the received AC power into DC power with a voltage value equal to the charging voltage of the power battery 301, and by closing the first contactor 306, the DC power is transmitted from the DC output end of the inverter 303 to the discharge interface 307 for external output.

[0080] Through the above process, the voltage value that the hybrid vehicle can output can be stabilized as the battery charging voltage, preparing for the subsequent charging of the device to be charged.

[0081] according to Figure 3 As shown, after the voltage value that the hybrid vehicle can output to the outside is stabilized as the battery charging voltage, the internal discharge process of the hybrid vehicle is as follows: the engine 305 is in a stable working state, the second contactor 302 is disconnected, and according to the inverter characteristics of the adjusted inverter 303, the inverter 303 converts the received AC power into DC power with a voltage value equal to the charging requirement voltage of the device to be charged, and outputs it from the discharge interface through the closed first contactor 306.

[0082] Through the above process, the hybrid vehicle can be charged according to the charging voltage required by the device to be charged, thereby improving the speed and efficiency of DC charging.

[0083] according to Figure 3 As shown, when the battery of the device to be charged is fully charged, the process of stopping discharge inside the hybrid vehicle is: disconnecting the current transmission path by disconnecting the first contactor 306; or controlling the engine 305 to stop working to terminate the discharge process; or disconnecting the first contactor 306 and controlling the engine 305 to stop working at the same time.

[0084] By stopping the discharge process of the hybrid vehicle in time, the safety of the charging process is ensured, the waste of electric energy of the hybrid vehicle is avoided, and the battery of the device to be charged is ensured not to be damaged.

[0085] The embodiment of the present application also proposes a vehicle discharge control device. Figure 4 FIG. 1 is a schematic diagram of a vehicle discharge control device according to an embodiment of the present disclosure. Figure 4 As shown, the vehicle discharge control device includes: a receiving unit 401, a discharge voltage adjustment unit 402, and a charging control unit 403.

[0086] The receiving unit 401 is used to receive a first request voltage sent by the device to be charged, determine a first discharge voltage based on the first request voltage, make the first discharge voltage greater than or equal to the first request voltage, and determine in advance the voltage value to be output by the hybrid vehicle discharge interface to ensure that the charging process can be carried out successfully.

[0087] The discharge voltage adjustment unit 402 is used to control the engine of the hybrid vehicle to work and drive the generator to output AC power, adjust the inverter characteristics of the inverter according to the first discharge voltage, and process the AC power through the inverter to stabilize the voltage value output by the DC output terminal of the inverter to the first discharge voltage. The voltage value output by the hybrid vehicle can be adjusted according to the actual charging voltage requirement of the device to be charged.

[0088] The charging control unit 403 is used to determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and control the first contactor connected between the DC output terminal of the inverter and the discharge interface to close, so as to charge the device to be charged according to the first discharge voltage. The charging process can be started and stopped according to the actual needs of the device to be charged.

[0089] The embodiment of the present application also proposes another vehicle discharge control device. Figure 4 FIG. 1 is a schematic diagram of another vehicle discharge control device according to an embodiment of the present disclosure. Figure 4 As shown, the vehicle discharge control device includes: a receiving unit 501, a charging control unit 502, a discharge voltage adjustment unit 503, and an engine adjustment unit 504.

[0090] Until the output voltage of the DC output terminal of the hybrid vehicle inverter is stabilized to the battery charging voltage, the working process of the corresponding control device includes:

[0091] The receiving unit 501 is used to receive a first request voltage sent by the device to be charged, determine a first discharge voltage according to the first request voltage, the first discharge voltage is greater than or equal to the first request voltage; and obtain the battery charging voltage of the power battery of the hybrid vehicle.

[0092] The charging control unit 502 is used to control the second contactor connected between the power battery and the DC output terminal to close, so that the power battery discharges to the inverter.

[0093] The discharge voltage adjustment unit 503 is used to adjust the inverter characteristics of the inverter according to the battery charging voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage.

[0094] When the hybrid vehicle can charge the device to be charged according to the first discharge voltage required by the device to be charged, the working process of the corresponding control device includes:

[0095] The charging control unit 502 is used to determine that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, and control the second contactor to be disconnected.

[0096] The discharge voltage adjustment unit 503 is used to control the engine of the hybrid vehicle and drive the generator to output AC power, adjust the inverter characteristics of the inverter according to the first discharge voltage, and process the AC power through the inverter to stabilize the voltage value output by the DC output terminal of the inverter to the first discharge voltage.

[0097] The charging control unit 502 is also used to determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, control the first contactor connected between the DC output terminal of the inverter and the discharge interface to close, and charge the device to be charged according to the first discharge voltage.

[0098] The engine adjustment unit 504 is used to determine the required power of the device to be charged, and adjust the operating speed of the engine according to the required power, so that the engine is in the optimal power consumption range.

[0099] During the charging process, the hybrid vehicle needs to adjust the second discharge voltage value outputted to the outside according to the different charging voltage values ​​requested by the device to be charged, and when the entire charging process is completed, the working process of the corresponding control device includes:

[0100] The receiving unit 501 is used to receive a second request voltage sent by the device to be charged, and determine a second discharge voltage according to the second request voltage, where the second discharge voltage is greater than or equal to the second request voltage.

[0101] The discharge voltage adjustment unit 503 is used to adjust the inverter characteristic of the inverter according to the second discharge voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the second discharge voltage.

[0102] The charging control unit 502 is used to continue charging the device to be charged according to the second discharge voltage.

[0103] The receiving unit 501 is further configured to respond to a charging end request received from the device to be charged.

[0104] The charging control unit 502 is further configured to control the first contactor to be disconnected, or to control the engine to be stopped, or to control the first contactor to be disconnected and the engine to be stopped at the same time.

[0105] Figure 6 This is a schematic diagram of the device structure provided by the embodiment of the present disclosure. Figure 6 , which shows a schematic diagram of the structure of a control device suitable for implementing the embodiments of the present disclosure. Figure 6 The control device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0106] like Figure 6 As shown, the control device may include a processing device 601 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory ROM 602 or a program loaded from a storage device 608 into a random access memory RAM 603. Various programs and data required for the operation of the control device are also stored in RAM 603. The processing device 601, ROM 602, and RAM 603 are connected to each other via a bus 604. In addition, an I / O interface 605, an input device 606, and an output device 607 are also connected to the bus 604.

[0107] In particular, according to an embodiment of the present disclosure, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present disclosure includes a computer program product, which includes a computer program carried on a non-transitory computer-readable medium, and the computer program contains program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device 609, or installed from a storage device 608, or installed from a ROM 602. When the computer program is executed by the processing device 601, the above-mentioned functions defined in the method of the embodiment of the present disclosure are executed.

[0108] It should be noted that the computer-readable medium disclosed above may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present disclosure, a computer-readable storage medium may be any tangible medium containing or storing a program that may be used by or in combination with an instruction execution system, device or device. In the present disclosure, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, in which a computer-readable program code is carried. This propagated data signal may take a variety of forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The computer readable signal medium may also be any computer readable medium other than a computer readable storage medium, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above. The above computer readable medium may be included in the above control device; or it may exist separately without being assembled into the control device.

[0109] In some embodiments, the client and the server may communicate using any currently known or future developed network protocol such as HTTP (HyperText Transfer Protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), an internet (e.g., the Internet), and a peer-to-peer network (e.g., an ad hoc peer-to-peer network), as well as any currently known or future developed network.

[0110] The computer-readable medium may be included in the control device, or may exist independently without being assembled into the control device.

[0111] The embodiment of the present disclosure also provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the above-mentioned vehicle discharge control method can be implemented.

[0112] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0113] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vehicle discharge control method, executed by controlling a hybrid vehicle, characterized in that: include: In response to receiving a first request voltage sent by the device to be charged, determining a first discharge voltage according to the first request voltage, wherein the first discharge voltage is greater than or equal to the first request voltage; Controlling the engine of the hybrid vehicle to operate and drive the generator to output AC power, adjusting the inverter characteristics of the inverter according to the first discharge voltage, and processing the AC power through the inverter to stabilize the voltage value outputted by the DC output terminal of the inverter to the first discharge voltage; It is determined that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and a first contactor connected between the DC output terminal of the inverter and the discharge interface is controlled to be closed to charge the device to be charged according to the first discharge voltage.

2. The method according to claim 1, characterized in that When receiving the first request voltage sent by the device to be charged, the generator is in a shutdown state; Before controlling the engine of the hybrid vehicle to operate and drive the generator to output AC power, the method further includes: The second contactor connected between the power battery of the hybrid vehicle and the DC output terminal of the inverter is controlled to be closed, so that the power battery discharges to the inverter, so that the generator is started and then drives the engine to start running.

3. The method according to claim 1, characterized in that Before adjusting the inverter characteristic of the inverter according to the first discharge voltage, the method further includes: Acquiring a battery charging voltage of a power battery of the hybrid vehicle, and controlling a second contactor connected between the power battery and a DC output terminal of the inverter to close; adjusting the inverter characteristic of the inverter according to the battery charging voltage so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage; Determine that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, and control the second contactor to disconnect.

4. The method according to claim 1, characterized in that: After charging the device to be charged according to the first discharge voltage, the method further includes: Determining the required power of the device to be charged; The operating speed of the engine is adjusted according to the required power so that the engine is in an optimal power consumption range.

5. The method according to claim 1, characterized in that After controlling the first contactor connected between the inverter DC output terminal and the discharge interface to be closed, the method includes: In response to receiving a second request voltage sent by the device to be charged, determining a second discharge voltage according to the second request voltage, wherein the second discharge voltage is greater than or equal to the second request voltage; The inverter characteristic of the inverter is adjusted according to the second discharge voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the second discharge voltage, so as to continue to charge the device to be charged according to the second discharge voltage.

6. The method according to claim 5, characterized in that After re-adjusting the inverter characteristic of the inverter according to the second discharge voltage, the method further includes: In response to receiving a charging end request sent by the device to be charged, the first contactor is controlled to be disconnected and / or the engine is controlled to be stopped.

7. A vehicle discharge control device for controlling a hybrid vehicle to charge an external charging device, characterized in that: include: A receiving unit, configured to receive a first request voltage sent by the device to be charged, and determine a first discharge voltage according to the first request voltage, wherein the first discharge voltage is greater than or equal to the first request voltage; a discharge voltage adjustment unit, used to control the engine of the hybrid vehicle to operate and drive the generator to output AC power, adjust the inverter characteristics of the inverter according to the first discharge voltage, and process the AC power through the inverter to stabilize the voltage value outputted by the DC output terminal of the inverter to the first discharge voltage; A charging control unit is used to determine that the discharge interface of the hybrid vehicle is connected to the charging interface of the device to be charged, and control the first contactor connected between the DC output end of the inverter and the discharge interface to close, so as to charge the device to be charged according to the first discharge voltage.

8. The device according to claim 7, characterized in that Also includes: The receiving unit is also used to obtain the battery charging voltage of the power battery of the hybrid vehicle, The charging control unit is also used to control the closing of a second contactor connected between the power battery and the DC output terminal of the inverter; The discharge voltage adjustment unit is further used to adjust the inversion characteristics of the inverter according to the battery charging voltage, so that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage; The charging control unit is also used to determine that the output voltage of the DC output terminal of the inverter is stabilized to the battery charging voltage, and control the second contactor to disconnect; The engine adjustment unit is used to determine the required power of the device to be charged, and adjust the operating speed of the engine according to the required power, so that the engine is in an optimal power consumption range.

9. A vehicle discharge control device, comprising a processor and a memory, wherein the memory is used to store a computer program; when the computer program is loaded by the processor, the processor executes the vehicle discharge control method according to any one of claims 1 to 6.

10. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, and when the computer program is executed by the processor, the processor implements the vehicle discharge control method as described in claims 1-6.

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