Generating capacity setting method of vehicle range extender, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicle range extending power generation, and discloses a power generation capacity setting method of a vehicle range extender, electronic equipment and a storage medium, and the method comprises the steps: when it is detected that the range extender needs to be started for power generation in the remaining mileage of a vehicle, obtaining information of a region where the remaining mileage is located and environment temperature information based on vehicle navigation information; acquiring the oil-electricity conversion rate of each driving road section according to the region information and the environment temperature information; wherein different combinations of the preset region information and the preset environment temperature information correspond to different preset oil-electricity conversion rates; and according to the oil-electricity conversion rate of the driving road section, the generating capacity of the driving road section is set, so that the oil-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard. Therefore, the generating capacity of the driving road section is set through the oil-electricity conversion rate of the driving road section, the setting of the generating capacity is realized by fully considering the road section information of the remaining mileage, and the oil-electricity conversion rate of the range extender within the remaining mileage can reach the preset standard, so that the oil-electricity conversion rate of the vehicle is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle range-extending power generation, and in particular to a method for setting power generation of a vehicle range extender, an electronic device and a storage medium. Background Art

[0002] In extended-range new energy vehicles, if the battery pack's charge is lower than the threshold charge, the vehicle can generate electricity through the range extender to power the drive motor to ensure the vehicle's normal driving function, and make the battery pack's charge not lower than the threshold charge as much as possible to ensure the vehicle's power retention performance.

[0003] The oil-to-electricity conversion efficiency of the range extender is related to the economic cost of power generation. When the oil-to-electricity conversion efficiency of the range extender is high, the economic cost of power generation of the range extender is low. At present, during vehicle navigation driving, it is not possible to set the power generation amount according to the road section information of the remaining mileage to improve the vehicle's oil-to-electricity conversion efficiency. Summary of the invention

[0004] In view of the above problems, the present application provides a method for setting the power generation of a vehicle range extender, an electronic device and a storage medium. The power generation of a driving section is set according to the oil-to-electricity conversion rate of the driving section, and the section information of the remaining mileage is fully considered to realize the setting of the power generation. The oil-to-electricity conversion rate of the range extender within the remaining mileage can reach a preset standard to improve the oil-to-electricity conversion rate of the vehicle.

[0005] In a first aspect, the present application provides a method for setting the power generation of a vehicle range extender, comprising: when it is detected that the vehicle needs to start the range extender to generate power in the remaining mileage, obtaining the location information and ambient temperature information of the remaining mileage based on the vehicle navigation information; obtaining the oil-to-electricity conversion rate of each driving section of the remaining mileage according to the location information and the ambient temperature information; wherein different driving sections have different oil-to-electricity conversion rates, and different combinations of preset location information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates; setting the power generation of the driving section according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard; wherein the total power generation of all driving sections is the power generation required to meet the preset power conservation standard.

[0006] In some specific embodiments, the step of setting the power generation of the driving section according to the oil-to-electricity conversion rate of the driving section so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard includes: taking the driving section with the highest oil-to-electricity conversion rate as the first power generation section, and judging whether the vehicle can reach the first power generation section by the pure electric driving mode; if it is judged that the vehicle can reach the first power generation section by the pure electric driving mode, obtaining the first maximum power generation of the range extender in the first power generation section; if it is detected that the first maximum power generation is greater than or equal to the required power generation of the range extender in the remaining mileage, taking the required power generation as the power generation of the range extender in the first power generation section.

[0007] In some specific embodiments, after determining that the vehicle can reach the first generating section by the pure electric driving mode, the step of obtaining the first maximum power generation of the range extender in the first generating section includes: if it is detected that the first maximum power generation is less than the required power generation of the range extender in the remaining mileage, the maximum power generation is used as the power generation of the range extender in the first generating section; the difference in power between the required power generation and the first maximum power generation is obtained, and the difference in power is used as the power generation of the driving section after the first generating section.

[0008] In some specific embodiments, after the step of taking the driving section with the highest oil-to-electricity conversion rate as the first generating section and judging whether the vehicle can reach the first generating section by the pure electric driving mode, the method includes: if it is judged that the vehicle cannot reach the first generating section by the pure electric driving mode, obtaining the first minimum power generation required by the range extender to reach the first generating section when the vehicle meets the preset power conservation standard; and using the first minimum power generation as the power generation of the range extender for the driving section before the first generating section.

[0009] In some specific embodiments, the step of using the first minimum power generation as the power generation of the range extender for the driving section before the first power generation section includes: using the driving section with the highest oil-to-electricity conversion rate before the first power generation section as the second power generation section, obtaining the second minimum power generation required for the vehicle to reach the range extender in the second power generation section when the vehicle meets the preset power conservation standard, and using the second minimum power generation as the power generation of the range extender for the driving section before the second power generation section; determining the first target power generation of the second power generation section and the driving section between the second power generation section and the first power generation section based on the first minimum power generation and the second minimum power generation; obtaining the second maximum power generation of the second power generation section, and when the second maximum power generation is greater than or equal to the first target power generation, using the first target power generation as the power generation of the second power generation section.

[0010] In some specific embodiments, the difference in electricity is used as the electricity generation of the driving section after the first generating section, including: taking the driving section with the highest oil-to-electricity conversion rate after the first generating section as the third generating section, and obtaining the third minimum electricity generation required for the vehicle to meet the preset power conservation standard from the first generating section to the range extender of the third generating section; determining the second target electricity generation of the third generating section and its subsequent driving sections based on the difference in electricity and the third minimum electricity generation, and obtaining the third maximum electricity generation of the third generating section; if it is determined that the third maximum electricity generation is greater than or equal to the second target electricity generation, the second target electricity generation is used as the electricity generation of the third generating section.

[0011] In some specific embodiments, the step of obtaining a first maximum power generation of the range extender in a first power generation section includes: obtaining a preset NVH standard of the vehicle in the first power generation section and a maximum charge capacity of a battery pack of the vehicle; obtaining a maximum power generation of the range extender in the first power generation section according to the preset NVH standard, and taking the power generation that meets the maximum power generation and the maximum charge capacity as the first maximum power generation of the first power generation section.

[0012] In some specific embodiments, if it is detected that the vehicle needs to start the range extender to generate electricity in the remaining mileage, before the step of obtaining the area information and ambient temperature information of the remaining mileage based on the vehicle navigation information, the method includes: obtaining the driving speed and ambient temperature of the sub-segment of the remaining mileage based on the vehicle navigation information; wherein the remaining mileage is composed of multiple sub-segments; obtaining the power consumption corresponding to the sub-segment according to the driving speed and the ambient temperature, and taking the sum of the power consumption of all sub-segments as the total power consumption of the vehicle in the remaining mileage; wherein there is a preset relationship between the combination of the driving speed and the ambient temperature and the power consumption, and the preset relationship is obtained based on the combination of the historical driving speed and the historical ambient temperature and the historical power consumption; based on the total power consumption, the current power of the battery pack and the starting power of the range extender, it is judged whether the vehicle needs to start the range extender to generate electricity in the remaining mileage.

[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, the method for setting the power generation capacity of a vehicle range extender according to any one of the above items 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 method for setting the power generation capacity of a vehicle range extender as described in any of the above items is implemented.

[0015] The present application has at least the following beneficial technical effects: the power generation setting method, electronic device and storage medium of the vehicle range extender provided by the present application include: when it is detected that the vehicle needs to start the range extender to generate power in the remaining mileage, the area information and ambient temperature information of the remaining mileage are obtained based on the vehicle navigation information; the oil-to-electricity conversion rate of each driving section of the remaining mileage is obtained according to the area information and ambient temperature information; wherein different driving sections have different oil-to-electricity conversion rates, and different combinations of preset area information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates; the power generation of the driving section is set according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches the preset standard; wherein the total power generation of all driving sections is the power generation required to meet the preset power conservation standard. Therefore, the power generation of the driving section is set according to the oil-to-electricity conversion rate of the driving section, and the setting of the power generation is fully considered to achieve the setting of the section information of the remaining mileage, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage can reach the preset standard, so as to improve the oil-to-electricity conversion rate 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 method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0019] Figure 2 is a flow chart of another embodiment of a method for setting power generation of a vehicle range extender provided by the present application;

[0020] Figure 3 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0021] Figure 4 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0022] Figure 5 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0023] Figure 6 It is a schematic diagram of dividing the driving section of the remaining mileage;

[0024] Figure 7 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0025] Figure 8 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0026] Fig. 9 It is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided by the present application;

[0027] Fig.10 It is a schematic diagram of the structural framework of an embodiment of the electronic device provided by the present application;

[0028] Fig.11 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

[0029] 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.

[0030] 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.

[0031] The first aspect of the present application provides a method for setting the power generation capacity of a vehicle range extender. Figure 1 1 is a flow chart of an embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 1 , the method comprises the following steps:

[0032] S11: When it is detected that the vehicle needs to start the range extender to generate electricity within the remaining mileage, the region information and the ambient temperature information of the remaining mileage are obtained based on the vehicle navigation information.

[0033] Specifically, it is possible to determine whether the vehicle needs to start the range extender to generate electricity in the remaining mileage based on the vehicle navigation information, that is, to predict whether the vehicle needs to start the range extender in the remaining mileage based on the vehicle navigation information. If it is detected that the vehicle needs to start the range extender to generate electricity in the remaining mileage, it means that the range extender is likely to work and generate electricity in the remaining mileage.

[0034] The information of the area where the remaining mileage is located is information about the area where each section of the remaining mileage is located. The information of the ambient temperature of the remaining mileage is information about the ambient temperature of the environment where each section of the remaining mileage is located. At this time, the information of the area where the remaining mileage is located can be obtained only based on the vehicle navigation information, and the ambient temperature information of the remaining mileage can be obtained based on the vehicle navigation information and weather information, without specific restrictions.

[0035] S12: Obtaining the oil-to-electricity conversion rate of each driving section of the remaining mileage according to the location information and the ambient temperature information; wherein different driving sections have different oil-to-electricity conversion rates, and different combinations of preset location information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates.

[0036] It should be understood that the different qualities of fuel in different regions and different ambient temperatures will affect the oil-to-electricity conversion rate, so different combinations of preset region information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates.

[0037] The preset location information may include multiple items, and the preset ambient temperature information may also include multiple items. One preset location information and one preset ambient temperature information constitute a combination, and one combination corresponds to a preset oil-to-electricity conversion rate. As long as the preset location information or the preset ambient temperature information in the combination is different, the combination is a different combination, corresponding to a different preset oil-to-electricity conversion rate.

[0038] The following table is a schematic diagram of different preset combinations of location information and ambient temperature information corresponding to different preset oil-to-electricity conversion rates:

[0039]

[0040] According to the above table, ambient temperature -30° - ambient temperature 30° are different preset ambient temperature information, and central region - southern region are different preset location information. A combination of a preset ambient temperature information and a preset location information corresponds to a preset oil-to-electricity conversion rate. For example, a combination of ambient temperature -10° and eastern region corresponds to a preset oil-to-electricity conversion rate of h2.

[0041] Among them, the preset ambient temperature information and the preset region information shown in the above table are merely exemplary settings and are not limited thereto.

[0042] After obtaining the location information and ambient temperature information of the remaining mileage, the oil-to-electricity conversion rate corresponding to each driving section of the remaining mileage can be obtained according to the correspondence between different preset combinations of location information and preset ambient temperature information and different preset oil-to-electricity conversion rates. Among them, if the entire remaining mileage corresponds to only one location information and one ambient temperature information, then the remaining mileage is one driving section and corresponds to one oil-to-electricity conversion rate. If the entire remaining mileage corresponds to multiple location information and / or multiple ambient temperature information, that is, it corresponds to multiple combinations of location information and ambient temperature information, then it corresponds to multiple driving sections and multiple oil-to-electricity conversion rates.

[0043] S13: setting the power generation of the driving section according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard; wherein the total power generation of all driving sections is the power generation required to meet the preset power conservation standard.

[0044] When there are multiple driving sections in the remaining mileage, the power generation of each driving section is set according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender in the remaining mileage reaches a preset standard.

[0045] It should be understood that in the existing range-extending power generation technology, the range extender will only start to generate electricity after the battery pack power level is lower than the threshold power level, and the power generation will not be distributed according to the different oil-to-electricity conversion rates in different regions and temperatures, which makes the oil-to-electricity conversion rate of the range extender relatively low over the entire journey. This patent sets the power generation of the driving section by the oil-to-electricity conversion rate of the driving section, and can generate electricity in areas with high oil-to-electricity conversion rates as much as possible, thereby improving the oil-to-electricity conversion rate corresponding to the entire journey. Among them, the preset standard for the oil-to-electricity conversion rate can be the oil-to-electricity conversion rate corresponding to the range-extending power generation strategy using the existing technology for the remaining distance, and the oil-to-electricity conversion rate is a floating value at this time. The preset standard for the oil-to-electricity conversion rate can also be a preset fixed value of the oil-to-electricity conversion rate, which is not specifically limited here.

[0046] Among them, after the power generation corresponding to each driving section of the remaining mileage is set based on this embodiment, when driving in the subsequent remaining mileage, power can be generated in each driving section according to the power generation corresponding to each driving section. In addition, the remaining mileage can be updated in real time as the vehicle travels, and the power generation of each driving section of the remaining mileage can be updated in real time.

[0047] Figure 2FIG. 1 is a flow chart of another embodiment of the method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 2 In some specific embodiments, the step of setting the power generation amount of the driving section according to the oil-to-electricity conversion rate of the driving section so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard, that is, the above-mentioned step S13, includes:

[0048] S21: The driving section with the highest oil-to-electricity conversion rate is used as the first power generation section, and it is determined whether the vehicle can reach the first power generation section in a pure electric driving mode.

[0049] In combination with the above content, when there are multiple driving sections, the oil-to-electricity conversion rates corresponding to the multiple driving sections are different. At this time, the driving section with the highest oil-to-electricity conversion rate can be obtained by comparison, that is, the first generating section.

[0050] It should be understood that when the vehicle starts to drive, the battery pack may have sufficient power, so it can be driven in pure electric mode. When the vehicle is in pure electric driving mode, the vehicle only uses the battery pack to power the drive motor, and the vehicle's range extender does not work.

[0051] For example, if the vehicle needs to travel 100 kilometers from the current position to the first power generation section, and the vehicle can travel 150 kilometers in pure electric mode, then the vehicle can travel to the first power generation section in pure electric mode.

[0052] S22: If it is determined that the vehicle can reach the first power generation section in the pure electric driving mode, a first maximum power generation amount of the range extender in the first power generation section is obtained.

[0053] The maximum power generation of the range extender in the first power generation section is the first maximum power generation, and the maximum power generation can be obtained by a preset acquisition rule. At this time, the relevant information of the first power generation section can be obtained through the navigation information of the vehicle, and the maximum power generation of the first power generation section can be obtained by combining the relevant information with the preset rule.

[0054] S23: If it is detected that the first maximum power generation is greater than or equal to the required power generation of the range extender in the remaining mileage, the required power generation is used as the power generation of the range extender in the first power generation section.

[0055] The required power generation for the remaining mileage can also be obtained through a preset calculation rule. It should be understood that the required power generation at this time is the predicted power generation.

[0056] It is detected that the first maximum power generation is greater than or equal to the required power generation of the range extender in the remaining mileage, which means that if the first maximum power generation is used in the first power generation section, the power generation in the first power generation section can reach the required power generation of the range extender in the remaining mileage. Therefore, it is sufficient to generate power in the first power generation section at this time, and thus a better oil-to-electricity conversion rate can be obtained. By using the required power generation as the power generation of the range extender in the first power generation section, the power generation of the range extender in the first power generation section is exactly the required power generation of the range extender in the remaining mileage, thereby ensuring that no more power is generated in the remaining mileage, thereby reducing fuel consumption of the vehicle to reduce costs.

[0057] In combination with the above, the vehicle can set a threshold power level, and when the power level of the battery pack is lower than the threshold power level, the vehicle range extender will start working. However, in this embodiment, the range extender can generate power in advance, that is, the range extender can be started to generate power when the power level of the battery pack is above the threshold power level. By generating power in advance, sufficient power can be generated on the driving section with high oil-to-electricity conversion rate to improve the oil-to-electricity conversion rate of the vehicle.

[0058] Figure 3 FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 3 In some specific embodiments, after determining that the vehicle can reach the first power generation section in the pure electric driving mode, the step of obtaining the first maximum power generation of the range extender in the first power generation section includes:

[0059] S31: If it is detected that the first maximum power generation is less than the required power generation of the range extender in the remaining mileage, the first maximum power generation is used as the power generation of the range extender in the first power generation section.

[0060] It is detected that the first maximum power generation is less than the required power generation of the range extender in the remaining mileage, which means that even if the range extender generates power at the first maximum power generation in the first power generation section, the first maximum power generation generated by the range extender cannot meet the required power generation of the range extender for the remaining mileage. At this time, in order to ensure that the power generation of the range extender does not exceed the first maximum power generation and to make the oil-to-electricity conversion rate of the vehicle as good as possible, the first maximum power generation is used as the power generation of the range extender in the first power generation section.

[0061] S32: Obtaining the power difference between the required power generation and the first maximum power generation, and using the difference as the power generation of the driving section after the first power generation section.

[0062] In combination with the above, when the range extender generates electricity at the first maximum power generation in the first power generation section, the power generated by the range extender cannot meet the required power generation of the range extender in the remaining mileage. Therefore, in order to ensure that the power generation of the range extender in the remaining mileage can reach the required power generation, it is necessary to generate electricity after the first power generation section. At this time, the difference between the required power generation and the first maximum power generation is the power generation of the driving section after the first power generation section.

[0063] Figure 4 FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 4 In some specific embodiments, after the step of taking the driving section with the highest oil-to-electricity conversion rate as the first power generation section and judging whether the vehicle can reach the first power generation section in the pure electric driving mode, the method includes:

[0064] S41: If it is determined that the vehicle cannot reach the first power generation section by the pure electric driving mode, a first minimum power generation amount required by the range extender to reach the first power generation section when the vehicle meets a preset power conservation standard is obtained.

[0065] If it is determined that the vehicle cannot reach the first power generation section in pure electric driving mode, it means that the range extender needs to work to generate electricity before the first power generation section. In order to make the vehicle generate electricity in the first power generation section as much as possible and make the vehicle's oil-to-electricity conversion rate as high as possible, it is sufficient to generate electricity at the power generation amount that meets the preset power conservation standard when reaching the first power generation section.

[0066] Among them, the power generation required by the range extender to reach the first power generation section when the vehicle meets the preset power conservation standard is used as the first minimum power generation. The preset power conservation standard is pre-set, and it can be that the power of the battery pack is not less than the threshold power. If the range extender starts working when the power of the battery pack is equal to the threshold power, then the power generation required by the range extender when the vehicle travels to the first power generation section is the power required to drive the vehicle, and the power of the vehicle when it reaches the first power generation section is the threshold power. At this time, the vehicle can meet the preset power conservation requirements and generate as little power as possible before the first power generation section, and then generate as much power as possible in the first power generation section to improve the oil-to-electricity conversion rate.

[0067] S42: Using the first minimum power generation as the power generation of the range extender for the driving section before the first power generation section.

[0068] In combination with the above content, using the first minimum power generation as the power generation of the range extender before the first power generation section can not only meet the vehicle's preset power conservation standard, but also generate as little power as possible in the first power generation section, thereby facilitating as much power generation as possible in the first power generation section.

[0069] Figure 5FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 5 In some specific embodiments, the step of using the first minimum power generation as the power generation of the range extender in the driving section before the first power generation section, i.e., the above step S42, includes:

[0070] S51: The driving section with the highest oil-to-electricity conversion rate before the first generating section is used as the second generating section, and the second minimum power generation required for the range extender to reach the second generating section when the vehicle meets the preset power conservation standard is obtained, and the second minimum power generation is used as the power generation of the range extender in the driving section before the second generating section.

[0071] Figure 6 It is a schematic diagram of the division of the driving sections for the remaining mileage.

[0072] Combination Figure 6 , the starting point of the remaining mileage is A, section CD is the first launching section, and section BC is the second launching section.

[0073] In combination with the above content, this embodiment provides specific steps for using the first minimum power generation as the power generation of the range extender for the driving section before the first power generation section on the basis that the vehicle cannot reach the first power generation section in the pure electric driving mode.

[0074] When the vehicle cannot reach the first generating section by pure electric driving, the driving section with the highest oil-to-electricity conversion rate before the first generating section is used as the second generating section. It should be understood that the vehicle may have a certain distance from the starting point of the remaining mileage to the second generating section. During this driving distance, if the vehicle wants to meet the preset power conservation standard, it needs to generate electricity through the range extender. In order to generate electricity in the second generating section as much as possible before the first generating section to improve the oil-to-electricity conversion rate, try to generate as little electricity as possible before the second generating section, that is, at this time, the second minimum power generation required by the range extender to reach the second generating section when the preset power conservation standard is met, is used as the power generation of the range extender. At this time, the vehicle can both meet the preset power conservation standard and generate as little electricity as possible before the second generating section.

[0075] Of course, in some application scenarios, when the preset power conservation standard is met, the range extender will not work to generate electricity before the second power generation section. At this time, the second minimum power generation is 0.

[0076] S52: Determine a first target power generation amount for a second power generation section and a driving section between the second power generation section and the first power generation section based on the first minimum power generation amount and the second minimum power generation amount.

[0077] In combination with the above content, the first minimum power generation is the power generation corresponding to the section before the first power generation section, and the second minimum power generation is the power generation corresponding to the section before the second power generation section. By subtracting the two from each other, the power generation of the second power generation section and the subsequent driving section can be obtained, and this power generation is the first target power generation.

[0078] It should be understood that Figure 6 The driving section after the second launching section is not shown in the figure. In actual application scenarios, there may be a driving section or there may not be a driving section after the second launching section, without specific limitation.

[0079] S53: Acquire the second maximum power generation of the second power generation section, and when the second maximum power generation is greater than or equal to the first target power generation, use the first target power generation as the power generation of the second power generation section.

[0080] The rule for obtaining the second maximum power generation of the second power generation section may be the same as the rule for obtaining the first maximum power generation of the first power generation section, but is not limited thereto. When the second maximum power generation is greater than or equal to the first target power generation, it means that within the second power generation section, if the range extender operates at the maximum power generation, the power generated by the range extender can reach the first target power generation. At this time, the power generation of the second power generation section can reach the first target power generation, and the power generation of the second power generation section is not excessive to ensure low fuel consumption of the vehicle, and the first target power generation is used as the power generation of the second power generation section.

[0081] Figure 7 FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 7 In some specific embodiments, the difference in power is used as the power generation of the driving section after the first power generation section, including:

[0082] S61: The driving section with the highest oil-to-electricity conversion rate after the first generating section is taken as the third generating section, and the third minimum power generation required for the vehicle to meet the preset power conservation standard from the first generating section to the range extender of the third generating section is obtained.

[0083] It should be understood that this embodiment is based on detecting that the first maximum power generation is less than the required power generation of the range extender in the remaining mileage, then taking the first maximum power generation as the power generation of the range extender in the first power generation section, and obtaining the power difference between the required power generation and the first maximum power generation. This embodiment is a specific step of taking the difference power as the power generation of the driving section after the first power generation section.

[0084] After the first generating section, there may be some driving sections with different oil-to-electricity conversion rates. The third generating section is the driving section with the highest oil-to-electricity conversion rate after the first generating section. There may or may not be a driving section between the first generating section and the third generating section, that is, the first generating section is adjacent to the third generating section.

[0085] Since the oil-to-electricity conversion rate of the third power generation section is higher, after the first power generation section, power is generated in the third power generation section as much as possible to ensure that the vehicle has a higher oil-to-electricity conversion rate. Therefore, after the first power generation section and before reaching the third power generation section, if the vehicle range extender needs to start power generation, it only needs to generate the minimum power generation corresponding to the preset power protection standard, that is, the third minimum power generation.

[0086] It should be understood that when the first power generation section and the third power generation section are adjacent, the third minimum power generation amount is 0. Alternatively, if there is a driving section between the first power generation section and the third power generation section, but the vehicle is traveling from the first power generation section to the third power generation section, if the preset power conservation standard is met, the range extender will not be started, and the third minimum power generation amount is also 0 at this time.

[0087] S62: Determine a second target power generation amount of the third power generation section and a subsequent driving section thereof based on the difference power generation amount and the third minimum power generation amount, and obtain a third maximum power generation amount of the third power generation section.

[0088] It should be understood that in the above embodiment, it is said that the power generation required by the range extender in the first power generation section and its subsequent sections is the difference power. In addition, the power generation required by the range extender from the first power generation section to the third power generation section is the third minimum power generation. Therefore, in the third power generation section and its subsequent sections, the power generation generated by the range extender is the difference between the difference power and the third minimum power, which is the second target power generation.

[0089] S63: if it is determined that the third maximum power generation is greater than or equal to the second target power generation, the second target power generation is used as the power generation of the third power generation section.

[0090] It is determined that the third maximum power generation is greater than or equal to the second target power generation, indicating that if the vehicle generates power at the maximum power generation in the third power generation section, the power generation can meet the second target power generation in the third power generation section. At this time, in order to meet the requirement that the power generation can reach the second target power generation and not generate more power to reduce the fuel consumption of the vehicle, the second target power generation is used as the power generation of the third power generation section.

[0091] Figure 8 FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Figure 8In some specific embodiments, the step of obtaining the first maximum power generation of the range extender in the first power generation circuit section includes:

[0092] S71: Obtaining a preset NVH standard of the vehicle in the first power generation section and a maximum charge capacity of the battery pack of the vehicle.

[0093] Among them, multiple preset NVH standards can be preset, and the user can select one as the NVH standard for the current driving process during the vehicle driving process. At this time, the first driving section corresponds to a preset NVH standard, and different driving sections can have the same preset NVH standard or different NVH standards.

[0094] During vehicle driving, in order to ensure that the battery pack is in good working condition, a maximum charge capacity of the battery pack can be set. When the charge capacity exceeds the maximum value, the range extender can stop working.

[0095] S72: Obtain the maximum power generation of the range extender in the first power generation section pair according to a preset NVH standard, and use the power generation that meets the maximum power generation and the maximum charging amount as the first maximum power generation of the first power generation section.

[0096] It should be understood that under the preset NVH standard, combined with the vehicle speed and other information corresponding to the first power generation section, the maximum power generation of the range extender in the first power generation section under the preset NVH standard can be obtained. At this time, the power generation of the range extender should not be higher than the maximum power generation, and it will stop working after the power of the battery pack is greater than the maximum charge capacity. Combining these two conditions and some other relevant information, the maximum power generation of the first power generation section can be obtained.

[0097] In some application scenarios, you can also set a maximum charge value of the battery pack for the range extender to start working, and it will only work when the battery pack's charge is lower than the maximum charge value. For example, the vehicle's range extender can only work to generate electricity when the battery pack's charge is lower than 80%. Combined with the above content, the maximum charge capacity at this time can be 90% of the battery pack's charge. When the battery pack's charge is higher than 90%, the vehicle's range extender stops working.

[0098] For the method for obtaining the second maximum power generation and the third maximum power generation in the above embodiment, reference may be made to the method for obtaining the first maximum power generation, and no specific limitation is made here.

[0099] Fig. 9 FIG. 1 is a flow chart of another embodiment of a method for setting the power generation capacity of a vehicle range extender provided in the present application. Fig. 9In some specific embodiments, when it is detected that the vehicle needs to start the range extender to generate electricity when the vehicle has a remaining mileage, before the step of obtaining the area information and the ambient temperature information of the remaining mileage based on the vehicle navigation information, that is, before the above step S11, it includes:

[0100] S81: Obtaining the vehicle speed and ambient temperature of the sub-segment of the remaining mileage based on the vehicle navigation information; wherein the remaining mileage is composed of multiple sub-segments.

[0101] The remaining mileage includes multiple sub-segments connected in sequence, and the driving speed and other information corresponding to each sub-segment can be obtained according to the navigation information. Among them, the ambient temperature can be obtained based on the navigation information and weather information, for example, the location information of the sub-segment is obtained through the navigation information, and then the ambient temperature corresponding to the sub-segment is obtained according to the location information and weather information.

[0102] S82: Obtain the power consumption corresponding to the sub-section according to the driving speed and the ambient temperature, and take the sum of the power consumption of all sub-sections as the total power consumption of the vehicle in the remaining mileage; wherein, there is a preset relationship between the combination of the driving speed and the ambient temperature and the power consumption, and the preset relationship is obtained based on the combination of the historical driving speed and the historical ambient temperature and the historical power consumption.

[0103] The relationship between the combination of driving speed and ambient temperature and power consumption can be expressed as one driving speed and ambient temperature combination corresponding to one power consumption. The preset relationship is obtained based on the combination of historical driving speed and historical ambient temperature and historical power consumption, so a large amount of historical driving speed data, historical ambient temperature data and corresponding historical power consumption data can be obtained, and then the preset relationship is obtained through big data analysis. Since the preset relationship is obtained through historical driving data, the preset relationship is in line with the user's historical driving habits. The prediction of power consumption through the preset relationship is more in line with the user's driving habits and the prediction result is more accurate.

[0104] The following table shows the relationship between the combination of driving speed and ambient temperature and power consumption:

[0105]

[0106] At this time, when the vehicle speed is 40-80km / h and the ambient temperature is -10℃, the corresponding power consumption is b2; when the vehicle speed is 80-120km / h and the ambient temperature is 0℃, the corresponding power consumption is c3.

[0107] After the vehicle speed and ambient temperature of the sub-section are predicted, the power consumption corresponding to the sub-section can be obtained by looking up the table based on the above preset relationship.

[0108] S83: Determine whether the vehicle needs to start the range extender to generate electricity within the remaining mileage based on the total power consumption, the current power of the battery pack, and the starting power of the range extender.

[0109] The total power consumption for the remaining mileage can be obtained through the above embodiment. The current power of the battery pack, i.e., the power when the vehicle is at the starting point of the remaining mileage, and the starting power of the range extender can be preset, for example, set to 20% of the power of the battery pack.

[0110] The relationship between the total power generation required by the range extender for the remaining mileage and the above-mentioned total power consumption, the current power of the battery pack, and the start-up power of the range extender can be:

[0111] Total power generation = total power consumption - (current power - startup power) + K. K is a calibration value that changes with the ambient temperature. The lower the current ambient temperature, the greater the K value, ensuring that the total power generation can meet the user's destination. The following table shows the relationship between the K value and the current ambient temperature:

[0112] -30° -20° -10° 0° 10° 20° 30° K1 K2 K3 K4 K5 K6 K7

[0113] Combining the above relationship, we can get the total power generation of the range extender in the remaining mileage. When the total power generation is greater than 0, it means that the vehicle needs to generate electricity through the range extender in the remaining mileage.

[0114] A second aspect of the present application provides an electronic device, comprising: a processor; a memory for storing a computer program, and a method for setting the power generation capacity of a vehicle range extender in any of the above embodiments when the computer program is executed by the processor.

[0115] Fig.10 It is a schematic diagram of the structural framework of an embodiment of the electronic device 500 provided in the present application.

[0116] In some specific embodiments, the electronic device 500 includes a central processing unit (CPU) 501 and a read-only memory (ROM) 502, wherein the CPU 501 is a processor and the ROM 502 is a memory. The CPU 501 can perform various appropriate actions and processes according to the program stored in the 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 via a bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0117] 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.

[0118] 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.

[0119] A third aspect of the present application provides a computer-readable storage medium 40, Fig.11It is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium 40 provided in the present application.

[0120] The computer readable storage medium 40 stores a computer program 41 , and when the computer program 41 is executed by the processor, the method for setting the power generation capacity of the vehicle range extender in any of the above embodiments is implemented.

[0121] 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.

[0122] In summary, the power generation setting method, electronic device and storage medium of the vehicle range extender provided by the present application include: when it is detected that the vehicle needs to start the range extender to generate power in the remaining mileage, the area information and ambient temperature information of the remaining mileage are obtained based on the vehicle navigation information; the oil-to-electricity conversion rate of each driving section of the remaining mileage is obtained according to the area information and ambient temperature information; wherein different driving sections have different oil-to-electricity conversion rates, and different combinations of preset area information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates; the power generation of the driving section is set according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches the preset standard; wherein the total power generation of all driving sections is the power generation required to meet the preset power conservation standard. Therefore, the power generation of the driving section is set according to the oil-to-electricity conversion rate of the driving section, and the section information of the remaining mileage is fully considered to realize the setting of the power generation, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage can reach the preset standard, so as to improve the oil-to-electricity conversion rate of the vehicle.

[0123] 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 method for setting the power generation capacity of a vehicle range extender, characterized in that: include: If it is detected that the vehicle needs to start the range extender to generate electricity within the remaining mileage, the region information and the ambient temperature information of the remaining mileage are obtained based on the vehicle navigation information; Obtaining the oil-to-electricity conversion rate of each driving section of the remaining mileage according to the location information and the ambient temperature information; wherein different driving sections have different oil-to-electricity conversion rates, and different combinations of preset location information and preset ambient temperature information correspond to different preset oil-to-electricity conversion rates; The power generation of the driving section is set according to the oil-to-electricity conversion rate of the driving section, so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard; wherein the total power generation of all the driving sections is the power generation required to meet the preset power conservation standard.

2. The method for setting the power generation capacity of a vehicle range extender according to claim 1, characterized in that: The step of setting the power generation of the driving section according to the oil-to-electricity conversion rate of the driving section so that the oil-to-electricity conversion rate of the range extender within the remaining mileage reaches a preset standard includes: taking the driving section with the highest oil-to-electricity conversion rate as a first generating section, and determining whether the vehicle can reach the first generating section in a pure electric driving mode; determining that the vehicle can reach the first power generation section in the pure electric driving mode, then obtaining a first maximum power generation amount of the range extender in the first power generation section; If it is detected that the first maximum power generation is greater than or equal to the required power generation of the range extender in the remaining mileage, the required power generation is used as the power generation of the range extender in the first power generation section.

3. The method for setting the power generation capacity of a vehicle range extender according to claim 2, characterized in that: After determining that the vehicle can reach the first power generation section through the pure electric driving mode, the step of obtaining the first maximum power generation of the range extender in the first power generation section includes: If it is detected that the first maximum power generation is less than the required power generation of the range extender at the remaining mileage, the first maximum power generation is used as the power generation of the range extender at the first power generation section; The power difference between the required power generation and the first maximum power generation is obtained, and the difference is used as the power generation of the driving section after the first power generation section.

4. The method for setting the power generation capacity of a vehicle range extender according to claim 2, characterized in that: After the step of taking the driving section with the highest oil-to-electricity conversion rate as the first generating section and judging whether the vehicle can reach the first generating section in a pure electric driving mode, the method includes: If it is determined that the vehicle cannot reach the first power generation section in the pure electric driving mode, a first minimum power generation amount required by the range extender to reach the first power generation section when the vehicle meets a preset power conservation standard is obtained; The first minimum power generation is used as the power generation of the range extender in the driving section before the first power generation section.

5. The method for setting the power generation capacity of a vehicle range extender according to claim 4, characterized in that: The step of using the first minimum power generation as the power generation of the range extender in the driving section before the first power generation section includes: The driving section with the highest oil-to-electricity conversion rate before the first generating section is used as the second generating section, a second minimum power generation required for the range extender to reach the second generating section when the vehicle meets the preset power conservation standard is obtained, and the second minimum power generation is used as the power generation of the range extender in the driving section before the second generating section; Determine a first target power generation amount of the second power generation section and the driving section between the second power generation section and the first power generation section based on the first minimum power generation amount and the second minimum power generation amount; A second maximum power generation of the second power generation section is obtained, and when the second maximum power generation is greater than or equal to the first target power generation, the first target power generation is used as the power generation of the second power generation section.

6. The method for setting the power generation capacity of a vehicle range extender according to claim 3, characterized in that: The step of using the difference in power as the power generation of the driving section after the first power generation section includes: The driving section with the highest oil-to-electricity conversion rate after the first generating section is used as a third generating section, and a third minimum power generation required for the vehicle to reach the range extender of the third generating section from the first generating section to meet a preset power conservation standard is obtained; Determine a second target power generation amount of the third power generation section and the subsequent driving section based on the difference power generation amount and the third minimum power generation amount, and obtain a third maximum power generation amount of the third power generation section; If it is determined that the third maximum power generation is greater than or equal to the second target power generation, the second target power generation is used as the power generation of the third power generation section.

7. The method for setting the power generation capacity of a vehicle range extender according to claim 2, characterized in that: The step of obtaining a first maximum power generation amount of the range extender in the first power generation section comprises: Obtaining a preset NVH standard of the vehicle in the first power generation section and a maximum charge capacity of a battery pack of the vehicle; The maximum power generation of the range extender in the first power generation section pair is obtained according to the preset NVH standard, and the power generation that meets the maximum power generation and the maximum charging amount is used as the first maximum power generation of the first power generation section.

8. The method for setting the power generation capacity of a vehicle range extender according to claim 1, characterized in that: When it is detected that the vehicle needs to start the range extender to generate electricity in the remaining mileage, before the step of obtaining the area information and the ambient temperature information of the remaining mileage based on the vehicle navigation information, the method includes: Acquire the driving speed and ambient temperature of the sub-segment of the remaining mileage based on the vehicle navigation information; wherein the remaining mileage is composed of a plurality of the sub-segments; The power consumption corresponding to the sub-section is obtained according to the driving speed and the ambient temperature, and the sum of the power consumption of all the sub-sections is used as the total power consumption of the vehicle in the remaining mileage; wherein there is a preset relationship between the combination of the driving speed and the ambient temperature and the power consumption, and the preset relationship is obtained according to the combination of the historical driving speed and the historical ambient temperature and the historical power consumption; Based on the total power consumption, the current power of the battery pack and the starting power of the range extender, it is determined whether the vehicle needs to start the range extender to generate electricity within the remaining mileage.

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 method for setting the power generation capacity 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 method for setting the power generation capacity of the vehicle range extender according to any one of claims 1 to 8 is implemented.

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