Vehicle range extender control method, electronic equipment and computer readable storage medium

Abstract

The invention relates to the technical field of vehicle range extending control, and discloses a control method of a vehicle range extender, electronic equipment and a computer readable storage medium, and the method comprises the steps: obtaining the current altitude of the position where a vehicle is located, and obtaining a power generation compensation coefficient of the range extender of the vehicle based on the current altitude; wherein a preset relation exists between the current altitude and the power generation compensation coefficient; and obtaining the current basic power generation power of the range extender, and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender. Therefore, the basic power generation power is adjusted through the power generation compensation coefficient, and the power generation compensation coefficient is obtained through the current altitude, so that the setting of the current power generation power fully considers the influence of the current altitude, that is, the power generation of the range extender fully considers the influence of the current altitude, and the power guarantee performance of the vehicle can be improved.

Description

Technical Field

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

[0002] When the power level of the battery pack of a range-extended new energy vehicle falls below the threshold power level, the range extender will work to generate electricity to power the vehicle's drive motor.

[0003] At present, when a vehicle is traveling in an area with a high altitude, the altitude will have a certain impact on the power generation efficiency of the vehicle's range extender, which will cause the actual power generation of the range extender to be inconsistent with the target power generation power required by the vehicle, resulting in poor power conservation and power performance of the vehicle. Summary of the invention

[0004] In view of the above problems, the present application provides a control method, an electronic device and a computer-readable storage medium for a vehicle range extender, so that the current power generation setting fully considers the influence of the current altitude, that is, the power generation of the range extender fully considers the influence of the current altitude, which can improve the power conservation performance of the vehicle.

[0005] A first aspect of the present application provides a control method for a vehicle range extender, comprising: obtaining a current altitude of a vehicle's location, and obtaining a power generation compensation coefficient of the vehicle's range extender based on the current altitude; wherein there is a preset relationship between the current altitude and the power generation compensation coefficient; obtaining a current basic power generation power of the range extender, and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender.

[0006] In some specific embodiments, the step of obtaining a power generation compensation coefficient of a vehicle's range extender based on a current altitude includes: when it is detected that the vehicle is in a parked state, obtaining a first power generation compensation coefficient of the vehicle's range extender based on the current altitude; wherein there is a first preset relationship between the current altitude and the first power generation compensation coefficient; the step of obtaining a current basic power generation power of the range extender, and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender includes: obtaining the current first basic power generation power of the range extender, and taking the product of the first basic power generation power and the first power generation compensation coefficient as the current power generation power of the range extender.

[0007] In some specific embodiments, the step of obtaining a power generation compensation coefficient of a vehicle's range extender based on the current altitude includes: when it is detected that the vehicle is in a driving state, obtaining a second power generation compensation coefficient of the vehicle's range extender based on the current altitude, the current ambient temperature of the vehicle's environment, and the current remaining power of the vehicle's battery pack; wherein there is a second preset relationship between the current altitude, the current ambient temperature, the current remaining power, and the second power generation compensation coefficient; the step of obtaining the current basic power generation power of the range extender, and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender includes: obtaining the current second basic power generation power of the range extender, and taking the product of the second basic power generation power and the second power generation compensation coefficient as the current power generation power of the range extender.

[0008] In some specific embodiments, the step of obtaining a second power generation compensation coefficient of the vehicle's range extender based on the current altitude, the current ambient temperature of the vehicle's environment, and the current remaining power of the vehicle's battery pack includes: obtaining a target remaining power corresponding to the battery pack based on the current altitude and the current ambient temperature of the vehicle's environment; wherein there is a preset relationship between the current altitude, the current ambient temperature, and the target remaining power; obtaining the second power generation compensation coefficient of the vehicle's range extender based on the power difference between the current remaining power of the battery pack and the target remaining power; wherein there is a preset relationship between the power difference and the second power generation compensation coefficient.

[0009] In some specific embodiments, the step of obtaining the current first basic power generation power of the range extender includes: obtaining the current ambient temperature of the vehicle's environment and obtaining the current remaining power of the vehicle's battery pack; based on the current ambient temperature and the current remaining power, obtaining the current first basic power generation power of the range extender; wherein, there is a preset relationship between the current ambient temperature, the current remaining power and the first basic power generation power.

[0010] In some specific embodiments, after the step of obtaining the current basic power generation power of the range extender and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender, the method includes: if it is detected that the current altitude is greater than the preset altitude, then obtaining the current opening of the vehicle's accelerator pedal; if it is detected that the current opening is greater than the preset opening, then obtaining the compensation power generation power according to the accelerator opening, and taking the sum of the compensation power generation power and the current power generation power as the target power generation power to control the range extender to operate at the target power generation power; wherein the compensation power generation power increases with the increase of the current opening.

[0011] In some specific embodiments, after the step of obtaining the current basic power generation power of the range extender and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender, the following steps are included: obtaining the current preset NVH standard of the vehicle, and obtaining the maximum power generation power of the range extender under the NVH standard; if it is detected that the maximum power generation power is less than the current power generation power, the range extender is controlled to operate at the maximum power generation power; if it is detected that the maximum power generation power is greater than or equal to the current power generation power, the range extender is controlled to operate at the current power generation power.

[0012] In some specific embodiments, after the step of obtaining the current altitude of the vehicle's location, the step includes: if it is detected that the current altitude is higher than the preset altitude and the vehicle is in a parked state, the range extender of the vehicle is controlled to start when the power of the battery pack is lower than the first preset power, and the range extender is controlled to stop when the power of the battery pack is higher than the second preset power; wherein the first preset power is less than the second preset power; if it is detected that the current altitude is higher than the preset altitude and the vehicle is in a driving state, the range extender is controlled to start when the power of the battery pack is lower than the third preset power and the current vehicle speed is greater than the first preset speed, and the range extender is controlled to stop when the power of the battery pack is lower than the fourth preset power and the current vehicle speed is less than the second preset speed; wherein the third preset power is greater than or equal to the second preset power, the fourth preset power is greater than the third preset power, and the difference between the fourth preset power and the third preset power is greater than the difference between the second preset power and the first preset power.

[0013] A second aspect of the present application provides an electronic device, comprising: a processor; and a memory for storing a computer program, wherein when the computer program is executed by the processor, a control method for a vehicle range extender as described above is implemented.

[0014] A third aspect of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, a control method for a vehicle range extender as described above is implemented.

[0015] The present application has at least the following beneficial technical effects: Based on the control method, electronic device and computer-readable storage medium of the vehicle range extender provided by the present application, the method includes: obtaining the current altitude of the vehicle, and obtaining the power generation compensation coefficient of the vehicle range extender based on the current altitude; wherein there is a preset relationship between the current altitude and the power generation compensation coefficient; obtaining the current basic power generation of the range extender, and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender. Therefore, the basic power generation is adjusted by the power generation compensation coefficient, and the power generation compensation coefficient is obtained by the current altitude, so that the setting of the current power generation fully considers the influence of the current altitude, that is, the power generation of the range extender fully considers the influence of the current altitude, which can improve the power conservation performance of the vehicle.

[0016] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present application. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0018] Figure 1 It is a flow chart of an embodiment of a control method for a vehicle range extender provided by the present application;

[0019] Figure 2 is a flow chart of another implementation of the vehicle range extender control method provided by the present application;

[0020] Figure 3 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0021] Figure 4 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0022] Figure 5 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0023] Figure 6 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0024] Figure 7 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0025] Figure 8 It is a schematic diagram of the structural framework of an embodiment of the electronic device provided by the present application;

[0026] Fig. 9 It is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium provided by the present application. DETAILED DESCRIPTION

[0027] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0028] If there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0029] The first aspect of the present application provides a control method for a vehicle range extender. Figure 1 1 is a flow chart of an embodiment of a control method for a vehicle range extender provided by the present application. Figure 1 , the method comprises the following steps:

[0030] S11: Obtain the current altitude of the vehicle, and obtain the power generation compensation coefficient of the vehicle's range extender based on the current altitude; wherein there is a preset relationship between the current altitude and the power generation compensation coefficient.

[0031] It should be understood that in this embodiment and subsequent embodiments, the execution subject of each step may be the controller of the vehicle. The current altitude of the vehicle's location is the altitude of the vehicle's current location. Among them, the atmospheric pressure of the vehicle's location can be obtained by an atmospheric pressure sensor provided on the vehicle, and the altitude of the vehicle's location can be obtained by the specific value of the atmospheric pressure. Of course, the current altitude of the vehicle can also be obtained through vehicle navigation information, which is not specifically limited here.

[0032] Among them, the corresponding relationship between the altitude and the power generation compensation coefficient can be preset and stored. After the current altitude is obtained, the power generation compensation coefficient of the vehicle's range extender can be directly obtained according to the current altitude and the preset relationship.

[0033] S12: Acquire the current basic power generation power of the range extender, and take the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender.

[0034] It should be understood that the basic power generation in this embodiment can be calculated using existing technology, and the basic power generation is generally based on the vehicle speed and the parameters of the vehicle itself, and the basic power generation is generally equal to the driving power of the vehicle. At this time, the basic power generation does not take into account the impact of plateau areas on the power generation of the range extender.

[0035] The power generation compensation coefficient obtained through the current altitude in the above steps is closely related to the current altitude. When the product of the basic power generation and the power generation compensation coefficient is used as the current power generation of the range extender, the influence of the altitude on the power generation of the range extender can be fully considered. Since the current power generation fully takes the altitude into account, the power generation of the range extender is more in line with the actual power demand at the current altitude.

[0036] It should be understood that, in general, the value of the power generation compensation coefficient is greater than 1, and the current power generation obtained at this time is greater than the basic power generation. However, in some application scenarios, the power generation compensation coefficient may be less than 1, and the current power generation obtained at this time is less than the basic power generation.

[0037] After obtaining the current power generation of the range extender, the range extender can be directly controlled to work with the current power generation. Of course, the current power generation can also be further adjusted, and then the range extender can be controlled to work with the adjusted power generation, without specific restrictions.

[0038] In summary, based on the above embodiments, the basic power generation power is adjusted by the power generation compensation coefficient, and the power generation compensation coefficient is obtained through the current altitude, so that the setting of the current power generation power fully considers the influence of the current altitude, that is, the power generation of the range extender fully considers the influence of the current altitude, which can improve the power conservation performance of the vehicle.

[0039] Figure 2 FIG. 1 is a flow chart of another implementation of the control method of the vehicle range extender provided in the present application. Figure 2 In some specific embodiments, the step of obtaining the power generation compensation coefficient of the range extender of the vehicle based on the current altitude includes:

[0040] S21: When it is detected that the vehicle is in a parked state, a first power generation compensation coefficient of the range extender of the vehicle is obtained based on the current altitude; wherein there is a first preset relationship between the current altitude and the first power generation compensation coefficient.

[0041] In this embodiment, the acquisition of the power generation compensation coefficient fully considers the application scenario in which the vehicle is in a parked state, that is, the application scenario in which the vehicle generates power in the parked state.

[0042] In combination with the above, there is a preset relationship between the current altitude and the power generation compensation coefficient of the range extender. Specifically, in the specific application scenario where the vehicle is parked, the relationship between the current altitude and the power generation compensation coefficient is reflected as the first preset relationship between the current altitude and the first power generation compensation coefficient. At this time, the first preset relationship can be regarded as part of the preset relationship.

[0043] In summary, when it is detected that the vehicle is in a parked state, the first power generation compensation coefficient of the range extender is obtained according to the current altitude and the first preset relationship.

[0044] The step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, i.e., the above-mentioned step S12, includes:

[0045] S22: Acquire a current first basic power generation power of the range extender, and use the product of the first basic power generation power and the first power generation compensation coefficient as the current power generation power of the range extender.

[0046] When the vehicle is in a parked state, the first basic power generation is obtained to be used as the basic power generation when the vehicle is in a parked state. Further, the product of the first basic power generation and the first power generation compensation coefficient is used as the current power generation of the range extender, and the current power generation at this time is the power generation suitable for the vehicle in a parked state.

[0047] Figure 3 FIG. 1 is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application. Figure 3 In some specific embodiments, the step of obtaining the power generation compensation coefficient of the range extender of the vehicle based on the current altitude includes:

[0048] S31: When it is detected that the vehicle is in a driving state, a second power generation compensation coefficient of the vehicle's range extender is obtained based on the current altitude, the current ambient temperature of the vehicle's environment, and the current remaining power of the vehicle's battery pack; wherein there is a second preset relationship between the current altitude, the current ambient temperature, the current remaining power and the second power generation compensation coefficient.

[0049] In this embodiment, the acquisition of the power generation compensation coefficient fully considers the application scenario in which the vehicle is in a driving state, that is, the application scenario in which the vehicle generates power while in a driving state.

[0050] In this embodiment, the power generation compensation coefficient of the range extender when the vehicle is in the driving state is used as the second power generation compensation coefficient, and the second power generation compensation coefficient is a part of the power generation compensation coefficient in the above embodiment. At this time, the power generation compensation coefficient includes the first power generation compensation coefficient and the second power generation compensation coefficient, which are the power generation compensation coefficients in the parking state and the driving state respectively.

[0051] The specific method for obtaining the second power generation compensation coefficient is based on the current altitude, the current ambient temperature of the vehicle's environment, the current remaining power of the vehicle's battery pack, and the second preset relationship. The preset relationship in the above embodiment includes a first preset relationship and a second preset relationship, which are respectively the preset relationships of the vehicle in the parking state and the driving state. The current ambient temperature of the vehicle's environment can be obtained through a temperature sensor or through vehicle navigation information, which is not specifically limited here.

[0052] The step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, i.e., the above-mentioned step S12, includes:

[0053] S32: Acquire the current second basic power generation power of the range extender, and use the product of the second basic power generation power and the second power generation compensation coefficient as the current power generation power of the range extender.

[0054] When the vehicle is in a driving state, the second basic power generation is obtained to be used as the basic power generation when the vehicle is in a driving state. Further, the product of the second basic power generation and the second power generation compensation coefficient is used as the current power generation of the range extender, and the current power generation at this time is the power generation suitable for the vehicle in a driving state.

[0055] In summary, the above two embodiments respectively provide specific methods for obtaining the power generation compensation coefficient of the vehicle in a parking state and a driving state, so that the power generation compensation coefficient is more in line with the actual needs of the vehicle in different application scenarios.

[0056] Figure 4 This is a flow chart of another implementation of the vehicle range extender control method provided by the present application. Figure 4 In some specific embodiments, based on the current altitude, the current ambient temperature of the environment in which the vehicle is located, and the current remaining power of the battery pack of the vehicle, the step of obtaining the second power generation compensation coefficient of the range extender of the vehicle includes:

[0057] S41: Based on the current altitude and the current ambient temperature of the vehicle, obtain a target remaining power corresponding to the battery pack; wherein there is a preset relationship between the current altitude, the current ambient temperature and the target remaining power.

[0058] As for the specific method of obtaining the second power generation compensation coefficient, firstly, based on the current altitude and the current ambient temperature of the environment where the vehicle is located, the target remaining power corresponding to the battery pack is obtained. The relationship between the current altitude, the current ambient temperature and the target remaining power is preset and stored, and then after obtaining the current altitude and the current ambient temperature, the target remaining power can be directly obtained according to the preset relationship.

[0059] It should be understood that the target remaining power obtained in this embodiment is a specific target remaining power corresponding to the application scenario of the vehicle at the current altitude and the current ambient temperature. When either the current altitude or the current ambient temperature changes, the corresponding target remaining power may change, that is, the target remaining power corresponds to the combination of the current altitude and the current ambient temperature.

[0060] Specifically, the relationship between the current altitude, the current ambient temperature, and the target remaining power can be that, when other conditions remain unchanged, the higher the current altitude, the higher the target remaining power, and the lower the current ambient temperature, the higher the target remaining power. This setting can improve the vehicle's power retention capability in high altitude and low temperature environments.

[0061] S42: Based on the power difference between the current remaining power of the battery pack and the target remaining power, a second power generation compensation coefficient of the vehicle's range extender is obtained; wherein there is a preset relationship between the power difference and the second power generation compensation coefficient.

[0062] The power difference may be the current remaining power minus the target remaining power, so the power difference may be a positive value, 0, or a negative value.

[0063] When the power difference is positive or 0, that is, the current remaining power is greater than or equal to the target remaining power, the second power generation compensation coefficient can be a value less than 1. And, the larger the power difference, the smaller the second power generation coefficient. Through this setting, when the current remaining power is large (greater than or equal to the target remaining power), the power generation power of the range extender can be smaller, and the more remaining power (the larger the power difference), the smaller the power generation power of the range extender.

[0064] When the power difference is a negative value, that is, the current remaining power is less than the target remaining power, the second power generation compensation coefficient can be a value greater than 1. And, the larger the power difference, the larger the second power generation coefficient. Through this setting, when the current remaining power is small (less than the target remaining power), the power generation power of the range extender can be larger, and the less the remaining power (the larger the power difference), the greater the power generation power of the range extender.

[0065] In summary, through this embodiment, the second power generation compensation coefficient can be determined according to the difference between the current remaining power and the target remaining power, so that the power generation power setting of the range extender fully considers the current power state of the battery pack (current remaining power) and the target power state to be achieved (target remaining power), which is more in line with the actual application scenario.

[0066] Figure 5 This is a flow chart of another implementation of the vehicle range extender control method provided by the present application. Figure 5 In some specific embodiments, the step of obtaining the current first basic power generation power of the range extender includes:

[0067] S51: Obtain the current ambient temperature of the vehicle's environment and obtain the current remaining power of the vehicle's battery pack.

[0068] That is, when the vehicle is in a parked state, the current ambient temperature and the current remaining power of the vehicle are obtained, and then the first basic power generation power is obtained in the next step.

[0069] S52: Based on the current ambient temperature and the current remaining power, obtain the current first basic power generation power of the range extender; wherein there is a preset relationship between the current ambient temperature, the current remaining power and the first basic power generation power.

[0070] The preset relationship between the current ambient temperature, the current remaining power and the first basic power generation power is pre-set and stored, and then after obtaining the current ambient temperature, the first basic power generation power can be directly obtained according to the current ambient temperature, the current remaining power and the preset relationship.

[0071] Specifically, for the preset relationship between the current ambient temperature, the current remaining power and the first basic power generation power, when other conditions remain unchanged, the lower the current ambient temperature, the higher the first basic power generation power can be, and the higher the current remaining power, the lower the first basic power generation power can be.

[0072] Figure 6 This is a flow chart of another implementation of the vehicle range extender control method provided by the present application. Figure 6 In some specific embodiments, after the step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, the method includes:

[0073] S61: If it is detected that the current altitude is greater than the preset altitude, the current opening of the accelerator pedal of the vehicle is obtained.

[0074] It should be understood that the greater the opening of the accelerator pedal of the vehicle, the greater the driving power required by the vehicle at this time to ensure that the vehicle meets the current driving requirements of the user. The preset altitude can be preset, for example, set to 1500m, of course, but it is not limited to this.

[0075] S62: If it is detected that the current opening is greater than the preset opening, the compensation power generation is obtained according to the throttle opening, and the sum of the compensation power generation and the current power generation is used as the target power generation to control the range extender to operate at the target power generation; wherein the compensation power generation increases with the increase of the current opening.

[0076] The preset opening is preset, for example, the preset opening can be 70%. This step is performed to obtain the compensation power generation power only when the current opening is greater than 70%. It should be understood that when the current altitude is greater than the preset altitude and the current opening is greater than the preset opening, it means that a larger driving power is required at this time, and the driving power is greatly affected by the altitude, which easily leads to the real-time driving power not meeting the power demand corresponding to the current opening.

[0077] Therefore, when the current opening is greater than the preset opening, the current power generation will be compensated by the compensation power generation, so that the target power generation is greater than the current power generation to achieve power compensation. Different current openings can correspond to different compensation power generation, or different current openings in different ranges can correspond to different compensation power generation, without specific limitation.

[0078] Figure 7 This is a flow chart of another implementation of the vehicle range extender control method provided by the present application. Figure 7 In some specific embodiments, after the step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, the method includes:

[0079] S71: Obtain the current preset NVH standard of the vehicle, and obtain the maximum power generation power of the range extender under the NVH standard.

[0080] Specifically, multiple preset NVH standards can be preset, and the user can select an NVH standard as the NVH standard under the current driving state according to actual needs. Under the NVH standard, based on the vehicle's driving parameters and its own parameters, the maximum power generation corresponding to the range extender can be obtained. When the power generation of the range extender is greater than the maximum power generation, the vehicle may not meet the preset NVH standard.

[0081] S72: If it is detected that the maximum power generation is less than the current power generation, the range extender is controlled to operate at the maximum power generation; if it is detected that the maximum power generation is greater than or equal to the current power generation, the range extender is controlled to operate at the current power generation.

[0082] It is detected that the maximum power generation is less than the current power generation, which means that if the range extender works at the current power generation, the NVH performance of the vehicle is likely to be poor and lower than the preset NVH standard. Therefore, in order to ensure that the NVH performance of the vehicle meets the preset NVH standard, the range extender is operated at a larger power. At this time, the range extender is controlled to work at the current power generation.

[0083] The present application also provides a start-stop strategy for a vehicle range extender: In some specific embodiments, after the step of obtaining the current altitude of the vehicle, the following steps are included:

[0084] If it is detected that the current altitude is higher than the preset altitude and the vehicle is in a parked state, the vehicle's range extender is controlled to start when the power of the battery pack is lower than a first preset power, and the range extender is controlled to stop when the power of the battery pack is higher than a second preset power; wherein the first preset power is lower than the second preset power.

[0085] In some application scenarios, the first preset power level may be 30%, and the second preset power level may be 40%. Through this setting, the power level of the battery pack of the vehicle is basically higher than the first preset power level, and generally not higher than the second preset power level, thereby reducing the fuel consumption of the vehicle.

[0086] When it is detected that the current altitude is higher than the preset altitude and the vehicle is in a driving state, the range extender is controlled to start when the power of the battery pack is lower than the third preset power and the current vehicle speed is greater than the first preset speed, and the range extender is controlled to stop when the power of the battery pack is lower than the fourth preset power and the current vehicle speed is less than the second preset speed; wherein the third preset power is greater than or equal to the second preset power, the fourth preset power is greater than the third preset power, and the difference between the fourth preset power and the third preset power is greater than the difference between the second preset power and the first preset power.

[0087] Specifically, the preset altitude may be 1500m. In some specific application scenarios, the third preset power may be set to 40%, and the fourth preset power may be set to 60%, but this is not limited thereto. When the vehicle is in motion, the requirement for power conservation is higher, so the third preset power is set to be greater than or equal to the second preset power, the fourth preset power is greater than the third preset power, and the difference between the fourth preset power and the third preset power is greater than the difference between the second preset power and the first preset power.

[0088] In addition, one of the conditions for starting the range extender is that the current vehicle speed is greater than the first preset speed, to prevent the range extender from starting at a lower speed and affecting the vehicle's NVH performance. One of the conditions for shutting down the range extender is that the current vehicle speed is less than the second preset speed, and the second preset speed can be set to a lower speed, which can be lower than the first preset speed, to avoid the range extender shutting down due to occasional lower speeds during the range extender's power generation process. In some application scenarios, the first preset speed can be set to 25km / h, and the second preset speed can be set to 10km / h, but this is of course not a limitation.

[0089] A second aspect of the present application provides an electronic device, comprising: a processor; and a memory for storing a computer program, which, when executed by the processor, implements a control method for a vehicle range extender as in any of the above embodiments.

[0090] Figure 8 It is a schematic diagram of the structural framework of an embodiment of the electronic device 500 provided in the present application.

[0091] In some specific embodiments, the electronic device 500 includes a central processing unit (CPU) 501 and a read-only memory (ROM) 502, wherein the central processing unit 501 is a processor and the read-only memory (ROM) 502 is a memory. The central processing unit 501 can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 502 or the program loaded from the storage part 508 to the random access memory (RAM) 503, such as executing the method in the above embodiment. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, the ROM 502 and the RAM 503 are connected to each other through the bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0092] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed so that a computer program read therefrom is installed into the storage section 508 as needed.

[0093] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program 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 section 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0094] A third aspect of the present application provides a computer-readable storage medium 40, Fig. 9 It is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium 40 provided in the present application.

[0095] The computer readable storage medium 40 stores a computer program 41 , and when the computer program 41 is executed by a processor, the control method of the vehicle range extender in any of the above embodiments is implemented.

[0096] It should be noted that the computer-readable medium 40 shown in the embodiment of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, 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 can 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), a 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 application, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as a part of a carrier wave, wherein a computer-readable computer program is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0097] In summary, based on the control method, electronic device and computer-readable storage medium of the vehicle range extender provided by the present application, the method includes: obtaining the current altitude of the vehicle, and obtaining the power generation compensation coefficient of the vehicle range extender based on the current altitude; wherein there is a preset relationship between the current altitude and the power generation compensation coefficient; obtaining the current basic power generation of the range extender, and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender. Therefore, the basic power generation is adjusted by the power generation compensation coefficient, and the power generation compensation coefficient is obtained by the current altitude, so that the setting of the current power generation fully considers the influence of the current altitude, that is, the power generation of the range extender fully considers the influence of the current altitude, which can improve the power conservation performance of the vehicle.

[0098] The above content is only a preferred exemplary embodiment of the present application and is not intended to limit the implementation scheme of the present application. A person skilled in the art can easily make corresponding changes or modifications based on the main concept and spirit of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection required by the claims.

Claims

1. A control method for a vehicle range extender, characterized in that: include: Acquire the current altitude of the vehicle, and acquire the power generation compensation coefficient of the range extender of the vehicle based on the current altitude; wherein there is a preset relationship between the current altitude and the power generation compensation coefficient; The current basic power generation power of the range extender is obtained, and the product of the basic power generation power and the power generation compensation coefficient is used as the current power generation power of the range extender.

2. The control method of a vehicle range extender according to claim 1, characterized in that: The step of obtaining a power generation compensation coefficient of a range extender of the vehicle based on the current altitude comprises: When it is detected that the vehicle is in a parked state, a first power generation compensation coefficient of the range extender of the vehicle is acquired based on the current altitude; wherein a first preset relationship exists between the current altitude and the first power generation compensation coefficient; The step of obtaining the current basic power generation power of the range extender and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender comprises: The first basic power generation power of the range extender is obtained, and the product of the first basic power generation power and the first power generation compensation coefficient is used as the current power generation power of the range extender.

3. The control method of a vehicle range extender according to claim 1, characterized in that: The step of obtaining a power generation compensation coefficient of a range extender of the vehicle based on the current altitude comprises: When it is detected that the vehicle is in a driving state, a second power generation compensation coefficient of the range extender of the vehicle is obtained based on the current altitude, the current ambient temperature of the environment in which the vehicle is located, and the current remaining power of the battery pack of the vehicle; wherein a second preset relationship exists between the current altitude, the current ambient temperature, the current remaining power, and the second power generation compensation coefficient; The step of obtaining the current basic power generation power of the range extender and taking the product of the basic power generation power and the power generation compensation coefficient as the current power generation power of the range extender comprises: The current second basic power generation power of the range extender is obtained, and the product of the second basic power generation power and the second power generation compensation coefficient is used as the current power generation power of the range extender.

4. The control method of the vehicle range extender according to claim 3, characterized in that: The step of obtaining a second power generation compensation coefficient of the range extender of the vehicle based on the current altitude, the current ambient temperature of the environment in which the vehicle is located, and the current remaining power of the battery pack of the vehicle includes: Based on the current altitude and the current ambient temperature of the environment in which the vehicle is located, obtaining a target remaining power corresponding to the battery pack; wherein there is a preset relationship between the current altitude, the current ambient temperature and the target remaining power; Based on the power difference between the current remaining power of the battery pack and the target remaining power, a second power generation compensation coefficient of the range extender of the vehicle is obtained; wherein there is a preset relationship between the power difference and the second power generation compensation coefficient.

5. The control method of a vehicle range extender according to claim 2, characterized in that: The step of obtaining the current first basic power generation power of the range extender comprises: Obtaining the current ambient temperature of the environment in which the vehicle is located, and obtaining the current remaining power of the battery pack of the vehicle; Based on the current ambient temperature and the current remaining power, a current first basic power generation power of the range extender is obtained; wherein a preset relationship exists between the current ambient temperature, the current remaining power and the first basic power generation power.

6. The control method of a vehicle range extender according to claim 1, characterized in that: After the step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, the method further comprises: If it is detected that the current altitude is greater than a preset altitude, obtaining a current opening of the accelerator pedal of the vehicle; If it is detected that the current opening is greater than a preset opening, a compensatory power generation power is obtained according to the throttle opening, and the sum of the compensatory power generation power and the current power generation power is used as the target power generation power to control the range extender to operate at the target power generation power; wherein the compensatory power generation power increases with an increase in the current opening.

7. The control method of a vehicle range extender according to claim 1, characterized in that: After the step of obtaining the current basic power generation of the range extender and taking the product of the basic power generation and the power generation compensation coefficient as the current power generation of the range extender, the method further comprises: Obtaining a current preset NVH standard of the vehicle, and obtaining a maximum power generation power of the range extender under the NVH standard; If it is detected that the maximum power generation is less than the current power generation, the range extender is controlled to operate at the maximum power generation; if it is detected that the maximum power generation is greater than or equal to the current power generation, the range extender is controlled to operate at the current power generation.

8. The control method of a vehicle range extender according to claim 1, characterized in that: After the step of obtaining the current altitude of the vehicle's location, include: When it is detected that the current altitude is higher than a preset altitude and the vehicle is in a parked state, the range extender of the vehicle is controlled to start when the power of the battery pack is lower than a first preset power, and the range extender is controlled to stop when the power of the battery pack is higher than a second preset power; wherein the first preset power is lower than the second preset power; When it is detected that the current altitude is higher than the preset altitude and the vehicle is in a driving state, the range extender is controlled to start when the power of the battery pack is lower than a third preset power and the current vehicle speed is higher than a first preset vehicle speed, and the range extender is controlled to stop when the power of the battery pack is lower than a fourth preset power and the current vehicle speed is lower than a second preset vehicle speed; Among them, the third preset power is greater than or equal to the second preset power, the fourth preset power is greater than the third preset power, and the difference between the fourth preset power and the third preset power is greater than the difference between the second preset power and the first preset power.

9. An electronic device, characterized in that: include: processor; A memory for storing a computer program, wherein when the computer program is executed by the processor, the control method of the vehicle range extender according to any one of claims 1 to 8 is implemented.

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 control method of the vehicle range extender according to any one of claims 1 to 8 is implemented.

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