Method and apparatus for acquiring maximum power generation capacity of range extender, electronic device, and computer-readable storage medium

Abstract

The present application relates to the technical field of vehicles, and discloses a method and apparatus for acquiring the maximum power generation capacity of a range extender, an electronic device, and a computer-readable storage medium. The method comprises: if it is detected that a range extender of a vehicle is operating, acquiring a power difference between threshold power and current power of a battery pack of the vehicle; determining a preset power difference interval where the power difference is located, and determining a preset power generation level corresponding to the preset power difference interval, wherein different preset power difference intervals do not overlap each other and correspond to different preset power generation levels; and on the basis of vehicle navigation information, determining the maximum power generation capacity corresponding to the range extender generating power at the preset power generation level in target mileage, wherein the starting point of the target mileage is the current position of the vehicle. Therefore, the preset power generation level in the target mileage can be acquired on the basis of the power difference, and then the maximum power generation capacity in the target mileage can be accurately acquired on the basis of the preset power generation level, thereby facilitating effective implementation of energy pre-management technology.

Description

Method and device for obtaining maximum power generation of range extender, electronic device and computer readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present application claims priority to the Chinese patent application No. 202411094669.1, filed on August 10, 2024, and entitled "Method and device for obtaining maximum power generation of range extender, electronic device and computer readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicles, in particular to a method and device for obtaining maximum power generation of a range extender, an electronic device and a computer readable storage medium. BACKGROUND

[0004] In a range-extended new energy vehicle, the battery pack will work to generate electricity when the battery pack is below a certain threshold, and then the generated electricity is used to power the vehicle's drive motor. When the range extender is in different working states, the amount of electricity generated is generally different.

[0005] When the vehicle is in navigation driving, if the range extender is in the state of generating electricity, in many cases, the maximum amount of electricity that the range extender can generate in the subsequent journey needs to be predicted, so as to facilitate the user to realize energy pre-management. However, the maximum amount of electricity generated by the range extender in the subsequent journey is not accurate at present, which leads to the inability to effectively realize the energy pre-management technology. SUMMARY

[0006] In view of the above problems, the present application provides a method and device for obtaining maximum power generation of a range extender, an electronic device and a computer readable storage medium, which can obtain a preset power generation level in a target mileage according to a power difference, and then accurately obtain the maximum power generation in the target mileage according to the preset power generation level, thereby facilitating the effective realization of the energy pre-management technology.

[0007] The first aspect of the present application provides a method for obtaining maximum power generation of a range extender, comprising: detecting that the range extender of the vehicle is working, and then obtaining a power difference between a threshold power and a current power of a battery pack of the vehicle; wherein the threshold power is the highest power of the battery pack when the range extender is working; determining a preset power difference interval in which the power difference is located, and determining a preset power generation level corresponding to the preset power difference interval; wherein different preset power difference intervals do not overlap and correspond to different preset power generation levels; determining a maximum power generation corresponding to the preset power generation level when the range extender generates electricity in a target mileage based on vehicle navigation information; wherein the starting point of the target mileage is the current position of the vehicle.

[0008] In some embodiments, the step of determining the maximum power generation of the range extender at the target mileage at the preset power generation level based on the vehicle navigation information comprises: obtaining speed information of the target mileage based on the vehicle navigation information, and determining a corresponding speed-power preset relationship according to the preset power generation level; the preset power generation level and the speed-power preset relationship have a preset corresponding relationship; obtaining power information corresponding to the target mileage based on the speed information and the speed-power preset relationship, and obtaining the power generation corresponding to the target mileage based on the power information and taking it as the maximum power generation.

[0009] In some embodiments, the step of obtaining speed information of the target mileage based on the vehicle navigation information comprises: obtaining average speeds corresponding to all driving sections of the target mileage based on the vehicle navigation information; the target mileage comprises a plurality of driving sections that are connected and do not overlap; the step of obtaining power information corresponding to the target mileage based on the speed information and the speed-power preset relationship, and obtaining the power generation corresponding to the target mileage based on the power information and taking it as the maximum power generation comprises: obtaining average power corresponding to the driving section according to the average speed corresponding to the driving section and the speed-power preset relationship; obtaining the power generation corresponding to the driving section based on the average power of the driving section, and taking the sum of the power generations of all driving sections as the maximum power generation corresponding to the target mileage.

[0010] In some embodiments, the power generation of the range extender increases with the increase of the preset power generation level; before the step of determining the maximum power generation of the range extender at the target mileage at the preset power generation level based on the vehicle navigation information, the method further comprises: obtaining a preset NVH (Noise, Vibration, Harshness) standard of the vehicle at the target mileage, and obtaining a highest power generation level corresponding to the preset NVH standard; the highest power generation level is one of the preset power generation levels; if it is detected that the highest power generation level is higher than or equal to the preset power generation level, the step of determining the maximum power generation of the range extender at the target mileage at the preset power generation level based on the vehicle navigation information is performed; if it is detected that the highest power generation level is lower than the preset power generation level, the maximum power generation of the range extender at the target mileage at the highest power generation level is determined based on the vehicle navigation information.

[0011] In some embodiments, in the speed-power preset relationship corresponding to the same preset power generation level, the higher the speed is, the greater the power is; in the speed-power preset relationships corresponding to different preset power generation levels, if the speed is the same, the higher the preset power generation level is, the greater the power is.

[0012] In some embodiments, the step of obtaining the threshold power of the battery pack of the vehicle comprises: obtaining a vehicle mode and a driving mode in which the vehicle is currently located; obtaining the threshold power corresponding to the battery pack of the vehicle based on the vehicle mode and the driving mode; and wherein the vehicle mode and the driving mode have a preset corresponding relationship with the threshold power of the battery pack.

[0013] In some embodiments, the step of determining the preset power generation level corresponding to the preset power difference interval comprises: determining a corresponding power generation level set based on the vehicle mode and the driving mode; wherein the vehicle mode and the driving mode have a preset corresponding relationship with the power generation level set, and the power generation level set includes a plurality of preset power generation levels; determining the preset power generation level corresponding to the preset power difference interval from the power generation level set; and wherein the preset power generation level in the power generation level set has a preset corresponding relationship with the preset power difference interval.

[0014] The second aspect of the present application provides a device for obtaining the maximum power generation of a range extender, comprising: a detection module for detecting that the range extender of the vehicle is working, and then obtaining the power difference between the threshold power and the current power of the battery pack of the vehicle; wherein the threshold power is the highest power of the battery pack when the range extender is working; an obtaining module for determining the preset power difference interval in which the power difference is located, and determining the preset power generation level corresponding to the preset power difference interval; wherein different preset power difference intervals do not overlap and correspond to different preset power generation levels; determining the maximum power generation corresponding to the preset power generation level at which the range extender generates power at a target mileage based on the vehicle navigation information; and wherein the starting point of the target mileage is the current position of the vehicle.

[0015] The third aspect of the present application provides an electronic device, characterized in that it comprises: a processor; a memory for storing a computer program, the computer program being executed by the processor to implement the method for obtaining the maximum power generation of the range extender according to any one of the above aspects.

[0016] The fourth aspect of the present application provides a computer readable storage medium, the storage medium storing a computer program, the computer program being executed by the processor to implement the method for obtaining the maximum power generation of the range extender according to any one of the above aspects.

[0017] The application has at least the following beneficial technical effects: based on the maximum power generation amount acquisition method, device, electronic equipment and computer readable storage medium of the range extender provided by the application, the method comprises: detecting that the range extender of the vehicle is working, then acquiring the power difference value between the threshold power and the current power of the battery pack of the vehicle; wherein the threshold power is the highest power of the battery pack when the range extender is working; determining the preset power difference value interval in which the power difference value is located, and determining the preset power generation level corresponding to the preset power difference value interval; wherein different preset power difference value intervals do not overlap and correspond to different preset power generation levels; based on the vehicle navigation information, the maximum power generation amount corresponding to the preset power generation level when the range extender generates power in the target mileage is determined; wherein the starting point of the target mileage is the current position of the vehicle. Therefore, the preset power generation level in the target mileage can be acquired according to the power difference value, and then the maximum power generation amount in the target mileage can be accurately acquired according to the preset power generation level, thereby facilitating the effective implementation of the energy pre-management technology.

[0018] The above description is only a summary of the technical solutions of the embodiments of the application, in order to more clearly understand the technical means of the embodiments of the application, the embodiments of the application can be implemented according to the content of the specification, and in order to make the above and other purposes, characteristics and advantages of the embodiments of the application more obvious and easy to understand, the specific embodiments of the application are described below. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings are only used to illustrate the embodiments and are not considered as limiting the application. Moreover, the same reference signs are used to represent the same parts throughout the drawings. In the drawings:

[0020] Fig. 1 is a flowchart of an embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0021] Fig. 2 is a flowchart of another embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0022] Fig. 3 is a flowchart of another embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0023] Fig. 4 is a flowchart of another embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0024] Fig. 5 is a flowchart of another embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0025] Fig. 6 is a flowchart of another embodiment of the maximum power generation amount acquisition method of the range extender provided by the application;

[0026] Fig. 7 is a structural block diagram of an embodiment of the maximum power generation amount acquisition device of the range extender provided by the application;

[0027] FIG. 8 is a structural framework schematic diagram of an embodiment of an electronic device provided by the present application;

[0028] FIG. 9 is a structural framework schematic diagram of an embodiment of a computer readable storage medium provided by the present application. DETAILED DESCRIPTION

[0029] Exemplary embodiments of the present application will be described in detail with reference to the drawings. Although exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0030] If the present application has a description of "first", "second" and the like in the embodiments, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0031] The first aspect of the present application provides a method for obtaining the maximum power generation of a range extender, which can be applied to a new energy vehicle with a range extender. FIG. 1 is a flowchart of an embodiment of a method for obtaining the maximum power generation of a range extender provided by the present application. In combination with FIG. 1, the method includes the following steps:

[0032] S11: When it is detected that the range extender of the vehicle is working, the difference between the threshold power and the current power of the battery pack of the vehicle is obtained; wherein the threshold power is the highest power of the battery pack when the range extender is working.

[0033] Generally speaking, during the driving of the vehicle, if the power of the battery pack is lower than the threshold power, the range extender of the vehicle will work to generate power to supply the driving motor, thereby avoiding the power of the battery pack being too low. After the power of the battery pack is higher than the threshold power, the range extender will stop generating power, thereby avoiding the high fuel consumption of the range extender, so as to ensure that the vehicle has good fuel consumption performance.

[0034] In the working process of the range extender, the current electric quantity of the vehicle is lower than the threshold electric quantity, but the electric quantity difference between the current electric quantity and the threshold electric quantity is not fixed. In the working process of the range extender, the electric quantity difference between the threshold electric quantity and the current electric quantity of the battery pack can change constantly.

[0035] S12: determine the preset electric quantity difference interval in which the electric quantity difference is located, and determine the preset power generation level corresponding to the preset electric quantity difference interval; different preset electric quantity difference intervals do not overlap and correspond to different preset power generation levels.

[0036] The preset electric quantity difference intervals are pre-set, different preset electric quantity difference intervals do not overlap, and the interval lengths of different preset electric quantity difference intervals can be different. After obtaining the electric quantity difference, the preset electric quantity difference interval in which it is located can be directly determined.

[0037] Since the preset electric quantity difference intervals correspond to different preset power generation levels, after obtaining the preset electric quantity difference interval, the corresponding preset power generation level can be directly determined. The preset power generation level can be pre-set, and the power generation intensity of the range extender is different when it works at different preset power generation levels.

[0038] S13: determine the maximum power generation corresponding to the preset power generation level of the range extender in the target mileage based on the vehicle navigation information; wherein the starting point of the target mileage is the current position of the vehicle.

[0039] It should be understood that after determining the preset power generation level in the target mileage, some other specific data is needed to obtain the power generation of the vehicle, and these other specific data can be obtained according to the vehicle navigation information.

[0040] Therefore, after obtaining the vehicle navigation information, the power generation of the target mileage can be directly obtained according to the vehicle navigation information corresponding to the target mileage and the preset power generation level. It should be understood that the preset power generation level determined based on the electric quantity difference is actually the preset power generation level corresponding to the maximum power generation intensity of the range extender at the electric quantity difference under the consideration of various factors. Therefore, the power generation of the target mileage obtained according to the navigation information corresponding to the target mileage and the preset power generation level is the maximum power generation corresponding to the target mileage.

[0041] The starting point of the target mileage is the current position of the vehicle, and the end position of the target mileage can be any position in the subsequent mileage of the navigation route, or the end position of the subsequent mileage, which is not limited specifically herein. When the end position of the target mileage is the end position of the subsequent mileage, the target mileage is the remaining mileage of the navigation.

[0042] In summary, based on the above method, the preset power generation level in the target mileage can be determined according to the power difference between the threshold power and the current power of the battery pack. The preset power generation level is actually the power generation level corresponding to the maximum power generation intensity of the range extender under the power difference and various standards, so the power generation amount corresponding to the preset power generation level of the range extender in the target mileage is actually the maximum power generation amount corresponding to the target mileage.

[0043] FIG. 2 is a flowchart of another embodiment of the method for obtaining the maximum power generation amount of the range extender provided by the present application. In combination with FIG. 2, in some embodiments, the step of determining the maximum power generation amount of the range extender in the target mileage at the preset power generation level based on the vehicle navigation information, i.e., the above step S13, comprises:

[0044] S21: obtaining the speed information of the target mileage based on the vehicle navigation information, and determining the corresponding speed-power preset relationship according to the preset power generation level; wherein the preset power generation level and the speed-power preset relationship have a preset corresponding relationship.

[0045] The vehicle navigation information can include the speed information, time information, and distance information of the target mileage, etc., which are not specifically limited herein. The preset power generation level can be multiple, and the corresponding speed-power preset relationship can also be multiple, one preset power generation level can correspond to one speed-power preset relationship. After the preset power generation level is determined, the corresponding speed-power preset relationship can be obtained according to the preset corresponding relationship.

[0046] In the speed-power preset relationship, there are multiple corresponding relationships between the speed and the power. The following table is a schematic table of the corresponding relationship between the speed and the power in a speed-power preset relationship:

[0047] At this time, when the speed is 20, the corresponding power is 5; when the speed is 30, the corresponding power is 10. In the speed-power preset relationship, different speeds can correspond to different powers, at this time the speed and the power can form a straight line or a curve in the coordinate system. It can also be that different speed sections correspond to different powers, at this time one speed section corresponds to one same power.

[0048] In some embodiments, in the speed-power preset relationship corresponding to the same preset power generation level, the higher the speed, the greater the power, i.e., the higher the speed, the greater the power generation of the range extender. Since the above schematic table represents a speed-power preset relationship, in the preset relationship, the higher the speed, the greater the power. Since the driving power required during the vehicle driving process increases as the speed increases, the power generation of the range extender needs to be greater.

[0049] In the preset speed-power relationship corresponding to different preset power generation levels, if the speed is the same, the higher the preset power generation level, the greater the power. For example, the preset power generation level can be divided into 1-4 levels, the preset power generation level of level 1 is the lowest power generation level, and the preset power generation level of level 4 is the highest power generation level. At this time, if the speed is the same, the power corresponding to the preset power generation level of level 1 is less than the power corresponding to the preset power generation level of level 4, that is, the higher the preset power generation level, the greater the power of the range extender corresponding thereto. In another aspect, the higher the preset power generation level, the higher the power generation intensity, so that the higher the preset power generation level, the greater the power at the same speed.

[0050] In combination with the above-mentioned content that different preset power difference intervals do not overlap and correspond to different preset power generation levels, at this time, the preset power generation level corresponding to the preset power difference interval with a greater average value is higher. That is, when the power difference is large, the corresponding preset power generation level is higher, thereby enabling the range extender to generate power at a higher intensity to ensure that the power of the battery pack can be maintained near the threshold power.

[0051] S22: Obtain power information corresponding to the target mileage based on the speed information and the speed-power preset relationship, and obtain power generation corresponding to the target mileage based on the power information and take it as the maximum power generation.

[0052] After obtaining the speed information corresponding to the target mileage, the power information corresponding to the target mileage can be directly obtained according to the speed-power preset relationship. After obtaining the power information corresponding to the target mileage, the power generation corresponding to the target mileage can be obtained according to the power information and related information, so as to take it as the maximum power generation.

[0053] FIG. 3 is a flow diagram of another embodiment of the method for obtaining the maximum power generation of the range extender provided by the present application. In combination with FIG. 3, in some specific embodiments, the step of obtaining the speed information of the target mileage based on the vehicle navigation information, that is, the above-mentioned step S21, includes:

[0054] S31: Obtain the average speed corresponding to all driving road sections of the target mileage based on the vehicle navigation information; wherein the target mileage includes a plurality of driving road sections that are connected and do not overlap.

[0055] The target mileage can be divided into a plurality of connected driving road sections, and the target mileage can be divided into a plurality of driving road sections, so that the target mileage is as refined as possible, thereby obtaining more accurate and detailed data.

[0056] At this time, different driving road sections can correspond to different average speeds. In combination with the above-mentioned content, the average speed information of all driving road sections is the speed information corresponding to the target mileage.

[0057] The step of obtaining the power information corresponding to the target mileage based on the speed information and the preset speed-power relationship, and obtaining the power generation corresponding to the target mileage based on the power information and taking the power generation as the maximum power generation, i.e., the step S22, comprises:

[0058] S32: obtaining the average power corresponding to the driving section according to the average speed corresponding to the driving section and the preset speed-power relationship.

[0059] At this time, each driving section corresponds to an average speed, and the average power corresponding to the driving section can be obtained according to the preset speed-power relationship, and then the average power corresponding to all driving sections can be obtained.

[0060] S33: obtaining the power generation corresponding to the driving section based on the average power of the driving section, and taking the sum of the power generations of all driving sections as the maximum power generation corresponding to the target mileage.

[0061] After the average power of the driving section is obtained, the driving time information can be obtained based on the navigation information, and then the power generation corresponding to the driving section can be obtained. After the power generations corresponding to all driving sections are obtained, the sum of the power generations corresponding to all driving sections is taken as the maximum power generation corresponding to the target mileage.

[0062] FIG. 4 is a flow diagram of another embodiment of the method for obtaining the maximum power generation of the range extender provided by the present application. Before the step of determining the maximum power generation corresponding to the target mileage at the preset power generation level of the range extender based on the navigation information of the vehicle, i.e., the step S13, comprises:

[0063] S41: obtaining the preset NVH standard of the vehicle at the target mileage, and obtaining the highest power generation level corresponding to the preset NVH standard; wherein the highest power generation level is one of the preset power generation levels.

[0064] In this embodiment, the power generation of the range extender increases with the increase of the preset power generation level, i.e., the power generation intensity of the range extender increases with the increase of the preset power generation level. In combination with the above content, in the preset speed-power relationship corresponding to different preset power generation levels, if the speed is the same, the higher the preset power generation level, the greater the power.

[0065] It should be understood that the vehicle can correspond to a preset NVH standard in the target mileage, so that the passengers on the vehicle have better comfort under the preset NVH standard. Among them, there can be multiple preset NVH standards, and the passengers can select a preset NVH standard. Under the preset NVH standard, there is a highest power generation level. When the power generation level of the range extender is lower than or equal to the highest power generation level, the NVH performance of the vehicle is generally good and can meet the preset NVH standard. When the power generation level of the range extender is higher than the highest power generation level, the NVH performance of the vehicle is generally poor and generally cannot meet the preset NVH standard.

[0066] S42: When it is detected that the highest power generation level is higher than or equal to the preset power generation level, a step of determining the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage based on the vehicle navigation information is performed.

[0067] The detection that the highest power generation level is higher than or equal to the preset power generation level indicates that the NVH performance of the vehicle generally meets the preset NVH performance when the vehicle works at the preset power generation level. At this time, the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage can be determined based on the vehicle navigation information.

[0068] S43: When it is detected that the highest power generation level is lower than the preset power generation level, the maximum power generation corresponding to the highest power generation level of the range extender at the target mileage is determined based on the vehicle navigation information.

[0069] The detection that the highest power generation level is lower than the preset power generation level indicates that the NVH performance of the vehicle generally cannot meet the preset NVH performance when the vehicle works at the preset power generation level, and the experience of the passengers is generally poor. At this time, in order to ensure that the passengers on the vehicle have better comfort, the maximum power generation is obtained based on the highest power generation level with lower power generation.

[0070] FIG. 5 is a flow diagram of another embodiment of the method for obtaining the maximum power generation of the range extender provided by the present application. In combination with FIG. 5, in some specific embodiments, the step of obtaining the threshold power of the battery pack of the vehicle includes:

[0071] S51: Obtain the vehicle mode and the driving mode in which the vehicle currently locates.

[0072] The vehicle can have multiple vehicle modes, for example, can have a forced EV mode, a pure electric priority mode, an automatic mode, and a fuel priority mode, etc. The driving mode of the vehicle can also include multiple modes, for example, a soft driving mode, an aggressive driving mode, etc., without specific limitation.

[0073] It should be understood that the setting of the threshold power can be affected by the different modes of the vehicle and the different driving modes in the same mode. For example, the threshold power corresponding to the modes of the vehicle in the forced EV mode, the pure electric priority mode, the automatic mode and the fuel priority mode can be increased in turn. In the same mode of the vehicle, the threshold power in the soft mode can be set to be larger and the threshold power in the intense driving mode can be set to be smaller, but it is not limited thereto.

[0074] At this time, different combinations of vehicle modes and driving modes can correspond to different threshold powers to meet the actual application of the vehicle in different driving scenarios.

[0075] S52: Obtain the threshold power of the battery pack of the vehicle based on the vehicle mode and the driving mode; wherein the vehicle mode and the driving mode have a preset corresponding relationship with the threshold power of the battery pack.

[0076] Since the vehicle mode and the driving mode have a preset corresponding relationship with the threshold power, after obtaining the vehicle mode and the driving mode, the corresponding threshold power can be directly obtained according to the corresponding relationship.

[0077] It should be understood that since the threshold power corresponding to different vehicle modes and driving modes can be different, one of the vehicle mode and the driving mode can cause the threshold power to be different, so the threshold power of the battery pack needs to be determined according to the vehicle mode and the driving mode.

[0078] FIG. 6 is a flow diagram of another embodiment of the method for obtaining the maximum power generation of the range extender provided by the present application. In combination with FIG. 6, based on the above-mentioned related content of obtaining the threshold power through the vehicle mode and the driving mode, in some specific embodiments, the step of determining the preset power generation level corresponding to the preset power difference interval includes:

[0079] S61: Determine the corresponding power generation level set based on the vehicle mode and the driving mode; wherein the vehicle mode and the driving mode have a preset corresponding relationship with the power generation level set, and the power generation level set includes a plurality of preset power generation levels.

[0080] It should be understood that the vehicle mode and the driving mode have a plurality of combinations, and at this time, each combination of the vehicle mode and the driving mode can correspond to a power generation level set. Therefore, different combinations of the vehicle mode and the driving mode can correspond to different power generation level sets, and the preset power generation levels in different power generation level sets can be different, and the corresponding vehicle speed-power preset relationship can also be different.

[0081] S62: determining a preset power generation level corresponding to the preset power difference interval from the power generation level set based on the preset power difference interval; wherein the preset power generation level in the power generation level set and the preset power difference interval have a preset corresponding relationship.

[0082] Since the preset power generation level in the power generation level set corresponding to the vehicle mode and the driving mode and the preset power difference interval have a preset relationship, after the power generation level set corresponding to the vehicle mode and the driving mode is determined, the corresponding preset power generation level can be obtained according to the corresponding power difference interval.

[0083] It should be understood that in the preset corresponding relationship between the preset power generation level in the different power generation level sets and the preset power difference interval, the preset power difference interval can be different.

[0084] Based on this embodiment, the preset power generation level of the vehicle can be determined according to the vehicle mode and the driving mode in which the vehicle is currently located, which is more in line with the actual driving scene of the vehicle, and thus the maximum power generation obtained is more in line with the actual application scene.

[0085] The second aspect of the present application provides a device 20 for obtaining the maximum power generation of a range extender. FIG. 7 is a structural block diagram of an embodiment of the device 20 for obtaining the maximum power generation of the range extender provided by the present application.

[0086] In combination with FIG. 7, the device 20 for obtaining the maximum power generation of the range extender includes a detection module 21 and an obtaining module 22. The detection module 21 is configured to detect that the range extender of the vehicle is working, and then obtain the power difference between the threshold power and the current power of the battery pack of the vehicle. The threshold power is the highest power of the battery pack when the range extender is working. The obtaining module 22 determines the preset power difference interval in which the power difference is located, and determines the preset power generation level corresponding to the preset power difference interval. Different preset power difference intervals do not overlap and correspond to different preset power generation levels. The maximum power generation corresponding to the preset power generation level at which the range extender generates power at a target mileage is determined based on the navigation information of the vehicle. The starting point of the target mileage is the current position of the vehicle.

[0087] The third aspect of the present application provides an electronic device, which includes a processor and a memory for storing a computer program. When the computer program is executed by the processor, the method for obtaining the maximum power generation of the range extender in any of the above embodiments is executed.

[0088] FIG. 8 is a structural framework diagram of an embodiment of the electronic device 500 provided by the present application.

[0089] In some embodiments, the electronic device 500 includes a central processing unit (CPU) 501, which is a processor, and a read-only memory (ROM) 502, which is a memory. The central processing unit 501 can perform various appropriate actions and processes in accordance with a program stored in the read-only memory (ROM) 502 or a program loaded from the storage section 508 into a random access memory (RAM) 503, such as performing the methods in the above-described embodiments. 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 a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0090] Connected to the I / O interface 505 are an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a display such as 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 necessary. A removable recording medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is attached to the drive 510 as necessary, so that a computer program read therefrom is installed into the storage section 508 as necessary.

[0091] In particular, the processes described above with reference to the flowcharts can be implemented as a computer software program according to embodiments of the present application. For example, embodiments of the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing a computer program for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via the communication section 509, and / or installed from the removable recording medium 511. When the computer program is executed by the central processing unit (CPU) 501, various functions defined in the system of the present application are performed.

[0092] The fourth aspect of the present application provides a computer readable storage medium 40. Fig. 9 is a structural schematic diagram of an embodiment of the computer readable storage medium 40 provided by the present application.

[0093] The computer readable storage medium 40 stores a computer program 41, and the computer program 41 is executed by a processor to implement the method for obtaining the maximum power generation of the range extender in any of the above embodiments.

[0094] It should be noted that the computer readable medium 40 shown in the embodiments of the present application can be a computer readable signal medium or a computer readable storage medium or any combination of the two. The computer readable storage medium may, for example, be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, 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 (Compact Disc Read-Only Memory, CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, the computer readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, device or apparatus. In the present application, the computer readable signal medium can include a data signal carried in a baseband or as a part of a carrier wave, which carries computer readable computer programs. Such a propagated data signal can take various forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The computer readable signal medium can also be any computer readable medium other than the computer readable storage medium, which can send, propagate or transmit programs for use by or in conjunction with an instruction execution system, device or apparatus. The computer programs contained on the computer readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, or the like, or any suitable combination of the above.

[0095] In summary, based on the method, device, electronic device and computer readable storage medium for obtaining the maximum power generation of the range extender provided in the present application, the method comprises: detecting that the range extender of the vehicle is working, then obtaining the power difference between the threshold power and the current power of the battery pack of the vehicle; wherein the threshold power is the highest power of the battery pack when the range extender is working; determining the preset power difference interval in which the power difference is located, and determining the preset power generation level corresponding to the preset power difference interval; wherein different preset power difference intervals do not overlap and correspond to different preset power generation levels; determining the maximum power generation corresponding to the preset power generation level of the range extender in the target mileage based on the vehicle navigation information; wherein the starting point of the target mileage is the current position of the vehicle. Therefore, the preset power generation level in the target mileage can be obtained according to the power difference, and then the maximum power generation in the target mileage can be accurately obtained according to the preset power generation level, thereby facilitating the effective implementation of the energy pre-management technology.

[0096] The above is only a preferred exemplary embodiment of the present application, and is not intended to limit the implementation of the present application. Those skilled in the art can easily make corresponding modifications or modifications according to the main concept and spirit of the present application, and the protection scope of the present application should be subject to the protection scope required by the claims.

Claims

1. A method for obtaining maximum power generation of a range extender, characterized in that, The method comprises the following steps: If it is detected that the range extender of the vehicle is working, the difference between the threshold power and the current power of the battery pack of the vehicle is obtained; wherein the threshold power is the maximum power of the battery pack when the range extender is working; A preset power difference interval to which the power difference belongs is determined, and a preset power generation level corresponding to the preset power difference interval is determined; wherein different preset power difference intervals do not overlap with each other and correspond to different preset power generation levels; Based on the vehicle navigation information, the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage is determined; wherein the starting point of the target mileage is the current position of the vehicle.

2. The method for obtaining the maximum power generation of the range extender according to claim 1, wherein The step of determining the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage based on the vehicle navigation information comprises: Obtaining the speed information of the target mileage based on the vehicle navigation information, and determining the corresponding speed-power preset relationship according to the preset power generation level; wherein the preset power generation level and the speed-power preset relationship have a preset corresponding relationship; Obtaining the power information corresponding to the target mileage based on the speed information and the speed-power preset relationship, and obtaining the power generation corresponding to the target mileage based on the power information and taking it as the maximum power generation.

3. The method for obtaining the maximum power generation of the range extender according to claim 2, wherein The step of obtaining the speed information of the target mileage based on the vehicle navigation information comprises: Obtaining the average speed corresponding to all driving sections of the target mileage based on the vehicle navigation information; wherein the target mileage comprises a plurality of driving sections that are connected and do not overlap with each other; The step of obtaining the power information corresponding to the target mileage based on the speed information and the speed-power preset relationship, and obtaining the power generation corresponding to the target mileage based on the power information and taking it as the maximum power generation comprises: Obtaining the average power corresponding to the driving section according to the average speed corresponding to the driving section and the speed-power preset relationship; Obtaining the power generation corresponding to the driving section based on the average power of the driving section, and taking the sum of the power generations of all the driving sections as the maximum power generation corresponding to the target mileage.

4. The method for obtaining the maximum power generation of the range extender according to claim 1, wherein The power generation power of the range extender increases with the increase of the preset power generation level; before the step of determining the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage based on the vehicle navigation information, the method comprises the following steps: Obtaining the preset NVH standard of the vehicle at the target mileage, and obtaining the highest power generation level corresponding to the preset NVH standard; wherein the highest power generation level is one of the preset power generation levels; If it is detected that the highest power generation level is higher than or equal to the preset power generation level, the step of determining the maximum power generation corresponding to the preset power generation level of the range extender at the target mileage based on the vehicle navigation information is performed. If it is detected that the highest power generation level is lower than the preset power generation level, a maximum power generation amount corresponding to the highest power generation level of the range extender at a target mileage is determined based on vehicle navigation information.

5. The method of claim 2, wherein, in the preset vehicle speed-power relationship corresponding to the same preset power generation level, the higher the vehicle speed, the greater the power; and in the preset vehicle speed-power relationship corresponding to different preset power generation levels, if the vehicle speed is the same, the higher the preset power generation level, the greater the power.

6. The method of claim 1, wherein, the step of obtaining the threshold power amount of the battery pack of the vehicle comprises: obtaining a vehicle mode and a driving mode of the vehicle; obtaining the threshold power amount of the battery pack corresponding to the vehicle mode and the driving mode, wherein the vehicle mode and the driving mode have a preset corresponding relationship with the threshold power amount of the battery pack.

7. The method of claim 6, wherein, the step of determining the preset power generation level corresponding to the preset power amount difference interval comprises: determining a set of power generation levels corresponding to the vehicle mode and the driving mode, wherein the vehicle mode and the driving mode have a preset corresponding relationship with the set of power generation levels, and the set of power generation levels includes a plurality of preset power generation levels; determining the preset power generation level corresponding to the preset power amount difference interval from the set of power generation levels, wherein the preset power generation level in the set of power generation levels has a preset corresponding relationship with the preset power amount difference interval. comprising: a detection module configured to detect that the range extender of the vehicle is working, and obtain a power amount difference between a threshold power amount and a current power amount of a battery pack of the vehicle, wherein the threshold power amount is a highest power amount of the battery pack when the range extender is working; an obtaining module configured to determine a preset power amount difference interval in which the power amount difference is located, and determine a preset power generation level corresponding to the preset power amount difference interval, wherein different preset power amount difference intervals do not overlap with each other and correspond to different preset power generation levels, and determine a maximum power generation amount corresponding to the preset power generation level of the range extender at a target mileage based on vehicle navigation information, wherein a starting point of the target mileage is a current position of the vehicle.

8. An apparatus for acquiring a maximum power generation amount of a range extender, characterized by comprising: comprising: a processor; a memory configured to store a computer program, wherein the computer program is executed by the processor to implement the method of claim 1-7.

9. An electronic device, comprising: The storage medium stores a computer program, and the computer program is executed by the processor to implement the method of claim 1-7. ​ ​ 10. A computer-readable storage medium, characterized in that, ​

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