Generator, control method and control device thereof, storage medium and vehicle

Abstract

The invention discloses a generator and a control method and device thereof, a storage medium and a vehicle, and the method comprises the steps: obtaining the speed of the vehicle, the operation state of an air conditioner, the outdoor environment temperature and the electric quantity of a battery; and under the conditions that the vehicle speed and the air conditioner running state meet preset conditions, the outdoor environment temperature is smaller than a preset temperature threshold value and the battery electric quantity is larger than a first preset electric quantity threshold value, the power generation efficiency of the generator is determined, and the generator is controlled according to the power generation efficiency of the generator. According to the control method of the generator, the generating efficiency of the generator can be determined according to the speed of the vehicle, the air conditioner running state, the outdoor environment temperature and the battery capacity, the heating value of the generator is increased by adjusting the efficiency of the generator, and therefore the input mechanical torque of the generator is increased; therefore, the mechanical torque of the generator meets the torque boundary where the gear cannot be knocked, and the problem of gear collision is solved.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a generator control method, a generator control device, a computer-readable storage medium, a generator and a vehicle. Background Art

[0002] Hybrid vehicles are usually not equipped with electric heaters due to cost considerations. Therefore, when the entire vehicle needs to be heated in a low temperature environment, the engine will be in operation. However, the engine will continue to charge the power battery. It is often the case that the battery power is high and cannot be charged further, but heating is still required. This can easily cause gear collisions inside the hybrid system, giving users or people outside the vehicle a feeling of vehicle failure, which affects the driving experience of the vehicle. Summary of the invention

[0003] The present application aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the first purpose of the present application is to propose a control method for a generator, obtain the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power of the vehicle, and determine the power generation efficiency of the generator when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, and control the motor according to the power generation efficiency of the generator. In this way, the power generation efficiency of the generator can be determined according to the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and then by adjusting the efficiency of the generator, the heat generated by the generator is increased, thereby increasing the input mechanical torque of the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, solving the problem of gear collision.

[0004] A second objective of the present application is to provide a control device for a generator.

[0005] The third object of the present application is to provide a computer-readable storage medium.

[0006] The fourth objective of the present application is to provide a generator.

[0007] A fifth object of the present application is to provide a vehicle.

[0008] To achieve the above-mentioned objectives, the first aspect of the present application proposes a method for controlling a generator, including: obtaining the vehicle speed, air-conditioning operating status, outdoor ambient temperature and battery power; determining the power generation efficiency of the generator when the vehicle speed and air-conditioning operating status meet preset conditions, the outdoor ambient temperature is less than a preset temperature threshold and the battery power is greater than a first preset power threshold; and controlling the generator according to the power generation efficiency of the generator.

[0009] According to the control method of the generator of the embodiment of the present application, the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power are obtained, and the power generation efficiency of the generator is determined when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, and the generator is controlled according to the power generation efficiency of the generator. Thus, the method can determine the power generation efficiency of the generator according to the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and then increase the heat generation of the generator by adjusting the efficiency of the generator, thereby increasing the input mechanical torque of the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the problem of gear collision.

[0010] In addition, the control method of the generator according to the above embodiment of the present application may also have the following additional technical features:

[0011] According to one embodiment of the present application, the generator is controlled according to the power generation efficiency of the generator, including: when the power generation power of the generator remains unchanged, determining the d-axis current and the q-axis current according to the power generation efficiency of the generator; and controlling the generator according to the d-axis current and the q-axis current.

[0012] According to one embodiment of the present application, the vehicle speed and the air-conditioning operating state satisfy the preset conditions, including: when the vehicle speed is less than or equal to the preset vehicle speed and the air-conditioning operating state is heating operation, determining that the preset conditions are satisfied.

[0013] According to one embodiment of the present application, the above-mentioned generator control method also includes: when the battery power is greater than the second preset power threshold and less than or equal to the first preset power threshold, the generator power generation power is reduced to the preset power generation power, wherein the preset power generation power is the maximum power generation power corresponding to the gear collision.

[0014] According to an embodiment of the present application, the above-mentioned generator control method also includes: when the battery power is less than or equal to a second preset power threshold, maintaining the power generation power of the generator unchanged.

[0015] According to an embodiment of the present application, the above-mentioned generator control method also includes: when the vehicle speed and the air-conditioning operating state do not meet the preset conditions, restoring the power generation efficiency of the generator to the preset power generation efficiency.

[0016] To achieve the above-mentioned purpose, the second aspect of the present application proposes a control device for a generator, including: an acquisition module, used to obtain the vehicle speed, air-conditioning operating status, outdoor ambient temperature and battery power; a determination module, used to determine the power generation efficiency of the generator when the vehicle speed and air-conditioning operating status meet preset conditions, the outdoor ambient temperature is less than a preset temperature threshold and the battery power is greater than a first preset power threshold; a control module, used to control the generator according to the power generation efficiency of the generator.

[0017] According to the control device of the generator of the embodiment of the present application, the acquisition module acquires the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and the determination module determines the power generation efficiency of the generator when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, and the control module controls the generator according to the power generation efficiency of the generator. Thus, the device can determine the power generation efficiency of the generator according to the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and then increase the heat generation of the generator by adjusting the efficiency of the generator, thereby increasing the input mechanical torque of the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the problem of gear collision.

[0018] To achieve the above-mentioned purpose, the third aspect of the present application proposes a computer-readable storage medium on which a control program of a generator is stored. When the control program of the generator is executed by a processor, the control method of the generator of any of the above-mentioned embodiments is implemented.

[0019] According to the computer-readable storage medium of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0020] To achieve the above-mentioned objectives, the fourth aspect of the present application proposes a generator, including a memory, a processor, and a generator control program stored in the memory and executable on the processor. When the processor executes the generator control program, the generator control method of any of the above-mentioned embodiments is implemented.

[0021] According to the generator of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0022] To achieve the above-mentioned objectives, the fifth aspect of the present application proposes a vehicle, comprising a memory, a processor, and a generator control program stored in the memory and executable on the processor. When the processor executes the generator control program, the generator control method of any of the above-mentioned embodiments is implemented.

[0023] According to the vehicle of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0024] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a flow chart of a method for controlling a generator according to some embodiments of the present application;

[0027] Figure 2 A flowchart of a method for migrating the efficiency of a generator according to some embodiments of the present application;

[0028] Figure 3 is a flow chart of a method for controlling a generator according to other embodiments of the present application;

[0029] Figure 4 is a block diagram of a control device for a generator according to some embodiments of the present application;

[0030] Figure 5 is a block diagram of a generator according to some embodiments of the present application;

[0031] Figure 6 It is a block diagram of a vehicle according to some embodiments of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0033] The following describes a generator control method, a generator control device, a computer-readable storage medium, a generator, and a vehicle proposed in embodiments of the present application with reference to the accompanying drawings.

[0034] Figure 1 Flowchart of a method for controlling a generator according to some embodiments of the present application. Figure 1 As shown, the control method of the generator in the embodiment of the present application includes the following steps:

[0035] S1, obtain the vehicle speed, air conditioning operating status, outdoor ambient temperature and battery power.

[0036] Exemplarily, the vehicle speed can be obtained by a speed sensor installed on the vehicle, and the speed sensor is connected to the vehicle controller in communication, thereby obtaining the vehicle speed. The air conditioning system is connected to the vehicle controller in communication, and the air conditioning operation status can be determined through communication data, or according to the input signal of the air conditioning control panel. The outdoor ambient temperature can be obtained by a temperature sensor installed outside the vehicle, or the vehicle controller obtains the outdoor ambient temperature from the cloud. The battery power can be obtained in real time through the battery management system, and the vehicle controller interacts with the battery thermal management system to obtain the battery power.

[0037] S2, when the vehicle speed and the air conditioner operation state meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, determine the power generation efficiency of the generator. The preset temperature threshold and the first preset power threshold can be calibrated according to actual conditions, for example, the first preset power threshold can be 70%.

[0038] Further, according to some embodiments of the present invention, the vehicle speed and the air conditioner operation state satisfy the preset condition, including: when the vehicle speed is less than or equal to the preset vehicle speed and the air conditioner operation state is heating operation, determining that the preset condition is satisfied. The preset vehicle speed can be calibrated according to actual conditions, for example, the preset vehicle speed can be 5 km / h.

[0039] Specifically, in a hybrid vehicle driven at a low speed or in a stationary state in a low temperature environment, heating requires the engine to be in operation. If the battery power remains high and cannot be charged, the engine power will continue to decrease. When it decreases to a certain level, gear collision will occur inside the hybrid system. To solve this problem, when the vehicle speed is less than or equal to the preset vehicle speed, the air conditioner operation state is heating operation, and the battery power is greater than the first preset power threshold, the power generation efficiency of the generator is determined, and the generator is controlled according to the power generation efficiency of the generator so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0040] S3, controlling the generator according to the power generation efficiency of the generator.

[0041] Specifically, after the vehicle speed, air-conditioning operating status, outdoor ambient temperature and battery power are obtained through the above step S1, when the vehicle speed and the air-conditioning operating status meet the preset conditions and the battery power is greater than the first preset power threshold, the power generation efficiency of the generator is determined. Generally, the power generation efficiency of the generator is less than the optimal power generation efficiency, wherein the optimal power generation efficiency is the optimal power generation efficiency under the current power generation power. By reducing the power generation efficiency, the mechanical torque of the generator can be increased so that the mechanical torque of the generator meets the torque boundary where the gears will not knock. Without increasing any hardware costs, the gear collision problem is solved, the risk of user complaints is reduced, and the user experience is improved.

[0042] The control method of the generator according to the embodiment of the present application is described in detail below.

[0043] According to one embodiment of the present application, the generator is controlled according to the power generation efficiency of the generator, including: when the power generation power of the generator remains unchanged, determining the d-axis current and the q-axis current according to the power generation efficiency of the generator; and controlling the generator according to the d-axis current and the q-axis current.

[0044] Specifically, in the case of low temperature and high battery power, if the vehicle has a heating demand, the engine needs to be started at this time. In order to avoid the working condition of gear collision, the vehicle starts the generator operation efficiency migration strategy. At this time, the power generation remains unchanged, and the mechanical torque of the generator will increase to the minimum set torque, where the minimum set torque is the torque value when the gear will not collide. Therefore, it is necessary to determine the power generation efficiency of the generator and control the motor according to the power generation efficiency of the generator. Among them, different power generation efficiencies correspond to different d-axis currents and q-axis currents. The determination method of the d-axis current and the q-axis current can be obtained by looking up the table according to the generator bench calibration test. For example, when the power generation efficiency of the generator decreases by 50%, the d-axis current and the q-axis current at the corresponding speed can be obtained. When the power generation power of the generator remains unchanged, by changing the combination of the d-axis current and the q-axis current, the generator efficiency is reduced, the heat generation of the generator is increased, and the input mechanical torque of the generator is increased, so that the mechanical torque of the generator meets the torque boundary where the gear will not knock, and the gear collision problem is solved.

[0045] As an example, Figure 2 As shown, the efficiency migration method of the generator of the present application may include the following steps:

[0046] S201, the generator efficiency migration strategy is started.

[0047] S202, when the generator power generation efficiency drops by 50%, the d-axis current and q-axis current at the corresponding speed are obtained by looking up the table through the generator bench calibration test, and the d-axis current and q-axis current under this working condition are controlled. At this time, under the condition of the same power generation, the generator input mechanical torque will increase.

[0048] S203, the generator efficiency migration strategy is terminated, and the generator efficiency will be restored to a normal state.

[0049] According to one embodiment of the present application, the above-mentioned generator control method also includes: when the battery power is greater than the second preset power threshold and less than or equal to the first preset power threshold, the generator power generation power is reduced to the preset power generation power, wherein the preset power generation power is the maximum power generation power corresponding to the gear collision, and the second preset power threshold can be calibrated according to actual conditions, for example, the second preset power threshold can be 60%.

[0050] Specifically, if the battery power is greater than the second preset power threshold and less than or equal to the first preset power threshold, there is no need to start the generator efficiency migration strategy, and the problem of gear collision can be avoided by reducing the generator power until the preset power. For example, when the battery power is greater than 60% and less than or equal to 70%, the generator power is reduced to the maximum power corresponding to the gear collision.

[0051] According to an embodiment of the present application, the above-mentioned generator control method also includes: when the battery power is less than or equal to a second preset power threshold, maintaining the power generation power of the generator unchanged.

[0052] Specifically, if the battery power is less than or equal to the second preset power threshold, it means that the power is low at this time. The power battery can be charged when the engine is running, and there will be no gear collision problem. At this time, there is no need to start the generator's efficiency migration strategy. The generator's power generation power remains unchanged, and the vehicle is controlled to enter the normal power generation process.

[0053] According to one embodiment of the present application, the above-mentioned generator control method also includes: when the vehicle speed and the air-conditioning operating state do not meet the preset conditions, the power generation efficiency of the generator is restored to the preset power generation efficiency, wherein the preset power generation efficiency can be calibrated according to actual conditions.

[0054] Specifically, if the vehicle speed is greater than the preset speed, or the air-conditioning operating state is in cooling mode, that is, the vehicle speed and the air-conditioning operating state do not meet the preset conditions, the vehicle will not experience gear collision, and there is no need to start the generator's efficiency migration strategy. The generator's power generation efficiency will be restored to the preset power generation efficiency.

[0055] As an example, Figure 3As shown, the control method of the generator of the present application may include the following steps:

[0056] S301, collecting vehicle speed, air conditioning operating status, outdoor ambient temperature and battery power.

[0057] S302, determine whether the vehicle speed is less than or equal to 5Km / h and whether the air conditioner is in heating operation. If not, execute step S303; if yes, execute step S304.

[0058] S303, the power generation efficiency of the generator is restored to a preset power generation efficiency.

[0059] S304, determine whether the battery power is greater than 70%. If yes, execute step S305; if not, execute step S306.

[0060] S305, starting the generator operation efficiency migration strategy.

[0061] S306, determine whether the battery power is greater than 60%. If yes, execute step S307; if not, execute step S308.

[0062] S307, the power generation of the generator is reduced to a preset power generation, wherein the preset power generation is the maximum power generation corresponding to the gear collision.

[0063] S308, maintaining the power generation of the generator unchanged.

[0064] In summary, according to the control method of the generator of the embodiment of the present application, the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power are obtained, and when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, the power generation efficiency of the generator is determined, and the generator is controlled according to the power generation efficiency of the generator. Therefore, the method can determine the power generation efficiency of the generator according to the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and then increase the heat generation of the generator by adjusting the efficiency of the generator, thereby increasing the input mechanical torque of the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, and solve the problem of gear collision.

[0065] Corresponding to the above embodiments, the present application also proposes a control device for a generator.

[0066] Figure 4 It is a block diagram of a control device of a generator according to some embodiments of the present application.

[0067] like Figure 4As shown, the motor control device 100 according to the embodiment of the present application may include: an acquisition module 10 , a determination module 20 and a control module 30 .

[0068] The acquisition module 10 is used to acquire the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power. The determination module 20 is used to determine the power generation efficiency of the generator when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold. The control module 30 is used to control the generator according to the power generation efficiency of the generator.

[0069] In some embodiments of the present application, the determination module 20 determines the power generation efficiency of the generator, specifically for: when the vehicle speed is less than or equal to a preset vehicle speed and the air conditioner operating state is heating operation, determining that the preset condition is met.

[0070] In some embodiments of the present application, the control module 30 controls the generator according to the power generation efficiency of the generator, and is specifically used to: determine the d-axis current and the q-axis current according to the power generation efficiency of the generator when the power generation power of the generator remains unchanged; and control the generator according to the d-axis current and the q-axis current.

[0071] In some embodiments of the present application, the control module 30 controls the generator according to the power generation efficiency of the generator, and is specifically used to: when the battery power is greater than the second preset power threshold and less than or equal to the first preset power threshold, reduce the power generation power of the generator to the preset power generation power, wherein the preset power generation power is the maximum power generation power corresponding to the gear impact.

[0072] In some embodiments of the present application, the control module 30 is further configured to: when the battery power is less than or equal to a second preset power threshold, keep the power generation power of the generator unchanged.

[0073] In some embodiments of the present application, the control module 30 is further used to restore the power generation efficiency of the generator to a preset power generation efficiency when the vehicle speed and the air-conditioning operating state do not meet preset conditions.

[0074] It should be pointed out that the above-mentioned explanation of the embodiments and beneficial effects of the generator control method are also applicable to the generator control device of the present application, and will not be elaborated here in detail to avoid redundancy.

[0075] According to the control device of the generator of the embodiment of the present application, the acquisition module acquires the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and the determination module determines the power generation efficiency of the generator when the vehicle speed and air conditioning operation status meet the preset conditions, the outdoor ambient temperature is less than the preset temperature threshold and the battery power is greater than the first preset power threshold, and the control module controls the generator according to the power generation efficiency of the generator. Thus, the device can determine the power generation efficiency of the generator according to the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power, and then increase the heat generation of the generator by adjusting the efficiency of the generator, thereby increasing the input mechanical torque of the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the problem of gear collision.

[0076] Corresponding to the above embodiment, the embodiment of the present application also proposes a computer-readable storage medium.

[0077] The computer-readable storage medium of the present application stores a generator control program thereon, and when the generator control program is executed by a processor, the generator control method of any of the above embodiments is implemented.

[0078] According to the computer-readable storage medium of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0079] Corresponding to the above embodiment, the embodiment of the present application also proposes a generator.

[0080] Figure 5 is a block diagram of a generator according to some embodiments of the present application.

[0081] like Figure 5 As shown, the generator 500 of the embodiment of the present application may include: a memory 502, a processor 504, and a generator control program 506 stored in the memory 502 and executable on the processor 504. When the processor 504 executes the generator control program 506, the generator control method according to any of the above embodiments is implemented.

[0082] According to the generator of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0083] Corresponding to the above embodiment, the embodiment of the present application also proposes a vehicle.

[0084] Figure 6 is a block diagram of a vehicle according to some embodiments of the present application.

[0085] like Figure 6 As shown, the vehicle 600 of the embodiment of the present application may include: a memory 602, a processor 604, and a generator control program 606 stored in the memory 602 and executable on the processor 604. When the processor 604 executes the generator control program 606, a generator control method according to any of the above embodiments is implemented.

[0086] According to the vehicle of the embodiment of the present application, by executing the above-mentioned generator control method, it is possible to increase the input mechanical torque of the generator by adjusting the efficiency of the generator and increasing the heat generated by the generator, so that the mechanical torque of the generator meets the torque boundary where the gears will not knock, thereby solving the gear collision problem.

[0087] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0088] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0089] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0090] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0091] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0092] In addition, the terms "first", "second", etc. used in the embodiments of the present application are only used for descriptive purposes and should not be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present application can explicitly or implicitly indicate that at least one of the features is included in the embodiment. In the description of the present application, the word "multiple" means at least two or two or more, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments.

[0093] It should be pointed out that the technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0094] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for controlling a generator, characterized in that: The method comprises: Obtain vehicle speed, air conditioning operating status, outdoor ambient temperature and battery power; Determining the power generation efficiency of the generator when the vehicle speed and the air conditioner operating state meet preset conditions, the outdoor ambient temperature is less than a preset temperature threshold, and the battery power is greater than a first preset power threshold; The generator is controlled according to the power generation efficiency of the generator.

2. The method for controlling a generator according to claim 1, characterized in that: Controlling the generator according to the power generation efficiency of the generator includes: Under the condition that the power generation power of the generator remains unchanged, determining the d-axis current and the q-axis current according to the power generation efficiency of the generator; The generator is controlled according to the d-axis current and the q-axis current.

3. The method for controlling a generator according to claim 1, characterized in that: The vehicle speed and the air conditioner operating state meet preset conditions, including: When the vehicle speed is less than or equal to a preset vehicle speed and the air conditioner operation state is a heating operation, it is determined that the preset condition is satisfied.

4. The method for controlling a generator according to claim 1, characterized in that: The method further comprises: When the battery power is greater than the second preset power threshold and less than or equal to the first preset power threshold, the power generation power of the generator is reduced to the preset power generation power, wherein the preset power generation power is the maximum power generation power corresponding to the gear collision.

5. The method for controlling a generator according to claim 4, characterized in that: The method further comprises: When the battery power is less than or equal to the second preset power threshold, the power generation power of the generator is kept unchanged.

6. The method for controlling a generator according to claim 1, characterized in that: The method further comprises: When the vehicle speed and the air conditioner operating state do not satisfy the preset condition, the power generation efficiency of the generator is restored to a preset power generation efficiency.

7. A control device for a generator, characterized in that: The device comprises: An acquisition module is used to obtain the vehicle speed, air conditioning operation status, outdoor ambient temperature and battery power; a determination module, configured to determine the power generation efficiency of the generator when the vehicle speed and the air conditioner operation state meet preset conditions, the outdoor ambient temperature is less than a preset temperature threshold, and the battery power is greater than a first preset power threshold; A control module is used to control the generator according to the power generation efficiency of the generator.

8. A computer-readable storage medium, characterized in that: A generator control program is stored thereon, and when the generator control program is executed by a processor, a generator control method according to any one of claims 1 to 6 is implemented.

9. A generator, characterized in that: The invention comprises a memory, a processor and a generator control program stored in the memory and executable on the processor. When the processor executes the generator control program, the generator control method according to any one of claims 1 to 6 is implemented.

10. A vehicle, characterized in that: The invention comprises a memory, a processor and a generator control program stored in the memory and executable on the processor. When the processor executes the generator control program, the generator control method according to any one of claims 1 to 6 is implemented.

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