Range extender control method, device and equipment of vehicle and storage medium

Abstract

The invention relates to the technical field of vehicle range extending control, and discloses a vehicle range extender control method, device and equipment and a storage medium, and the method comprises the steps: obtaining the road section information of each segment of the vehicle in the remaining driving road section; based on the road section information, the required electricity consumption of the vehicle in each section and the total energy recovery electricity quantity corresponding to the remaining driving road sections are obtained; if the sum of the required electricity consumption of the slope section is larger than the total energy recovery electricity quantity, the basic power generation level of at least part of the road sections is increased in the remaining driving road sections to obtain a target power generation level, and a range extender of the vehicle is controlled to generate power based on the target power generation level; wherein the basic power generation level is determined through a preset power generation strategy. Therefore, when the energy recovery electric quantity cannot balance the electricity consumption of the slope section, more electricity is generated in the whole road section by improving the electricity generation level, the whole-course electricity demand is further guaranteed, and the situation that the vehicle generates a large amount of electricity on the uphill road section, and consequently the vehicle NVH performance is poor is avoided.

Description

Technical Field

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

[0002] Extended-range new energy vehicles are becoming more and more popular among users. When the power level of the battery pack is below a certain value, the extended-range vehicle can burn fuel through the range extender to generate electricity to provide power for the vehicle and charge the battery pack.

[0003] At present, extended-range vehicles do not plan their power generation strategies based on road conditions during a driving journey, which often leads to unreasonable distribution of power generation in various sections, high power generation in uphill conditions, poor NVH (Noise, Vibration, Harshness) experience, and poor driving experience for users. Summary of the invention

[0004] In view of the above problems, the present application provides a vehicle range extender control method, device, equipment and storage medium. When the energy recovery electricity cannot balance the electricity consumption on the slope, more electricity is generated in the entire road section by increasing the power generation level, thereby ensuring the power demand for the entire journey, so as to avoid the vehicle generating a large amount of electricity on the uphill section, resulting in poor NVH performance of the vehicle.

[0005] In a first aspect, the present application provides a method for controlling a range extender of a vehicle, comprising: obtaining section information of each section of the vehicle in the remaining driving section; wherein the sections include slope sections and non-slope sections, and the section information includes slope, length and position; based on the section information, obtaining the required power consumption of the vehicle in each section, and the total energy recovery power corresponding to the remaining driving section; if the sum of the required power consumption of the slope sections is greater than the total energy recovery power, then increasing the basic power generation level of at least some sections in the remaining driving section to obtain a target power generation level, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy.

[0006] In some specific embodiments, the step of increasing the basic power generation level of at least part of the remaining driving section to obtain the target power generation level includes: obtaining the basic power generation level corresponding to the remaining driving section through a preset power generation strategy, and obtaining the current remaining power of the vehicle's battery pack; if the current remaining power is greater than or equal to the preset remaining power, then increasing the basic power generation level that is lower than the first target power generation level to the first target power generation level; wherein the first target power generation level corresponds to the preset remaining power and the target NVH standard.

[0007] In some specific embodiments, after obtaining the basic power generation level corresponding to the remaining driving section through a preset power generation strategy and obtaining the current remaining power of the vehicle's battery pack, it includes: if the current remaining power is less than the preset remaining power, the basic power generation level that is lower than the second target power generation level is increased to the second target power generation level; wherein the second target power generation level is higher than the first target power generation level.

[0008] In some specific embodiments, if the sum of the power demand of the slope section is greater than the total energy recovery power, then the basic power generation level of at least part of the sections within the remaining driving section is increased to obtain the target power generation level, so as to control the vehicle's range extender to generate power based on the target power generation level. The step includes: obtaining the remaining power of the vehicle's battery pack at the end of the current segment, and obtaining the predicted power generation of the next segment; wherein the slope section includes an uphill section and a downhill section, and the next segment is an uphill section; if the sum of the remaining power and the predicted power generation is less than the power demand of the next segment, then the initial power generation power of the vehicle's range extender is compensated to obtain the target power generation power, so as to control the range extender to generate power at the target power generation power in the next segment; wherein the initial power generation power is determined by a preset power generation strategy.

[0009] In some specific embodiments, the slope section includes an uphill section and a downhill section; after the step of obtaining the required power consumption of the vehicle in each section based on the section information, and the total energy recovery power corresponding to the remaining driving sections, the method includes: if the sum of the required power consumption of the slope sections is less than or equal to the total energy recovery power, obtaining the predicted power generation of each section; according to the predicted power generation, the required power consumption and the current remaining power of the vehicle's battery pack, determining the uphill section closest to the vehicle where the power of the battery pack cannot meet the driving power demand as the uphill section to be compensated; raising the basic power generation level that is lower than the first target power generation level in the uphill section to be compensated and its previous sections to the first target power generation level, so as to control the vehicle's range extender to generate power at the first target power generation level in the section corresponding to the first target power generation level; wherein the first target power generation level corresponds to the target NVH standard.

[0010] In some specific embodiments, after the step of raising the basic power generation level that is lower than the first target power generation level in the uphill section to be compensated and its previous segments to the first target power generation level, the step includes: obtaining the remaining power of the battery pack when the previous segment of the uphill section to be compensated is completed, and re-obtaining the predicted power generation of the uphill section to be compensated as the revised predicted power generation; if the sum of the revised predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, then increasing the initial power generation power of the range extender of the uphill section to be compensated to obtain the target power generation power; wherein the initial power generation power is determined by a preset power generation strategy, and the range extender generates electricity at the target power generation power in the uphill section to be compensated.

[0011] In some specific embodiments, after obtaining the remaining power of the battery pack when driving the previous segment of the uphill section to be compensated, and re-obtaining the predicted power generation of the uphill section to be compensated as the revised predicted power generation, the following steps are included: if the sum of the revised predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, the power generation level in the uphill section to be compensated that is lower than the second target power generation level is increased to the second target power generation level, so as to control the range extender to generate power at the second target power generation level in the uphill section to be compensated; wherein the second target power generation level is higher than the first target power generation level.

[0012] A second aspect of the present application provides a control device for a vehicle range extender, comprising: an acquisition module, used to acquire section information of each section of the vehicle in the remaining driving section: wherein the sections include slope sections and non-slope sections, and the section information includes the slope, length and position of the slope sections; based on the section information, the required power consumption of the vehicle in each section and the total energy recovery power corresponding to the remaining driving sections are acquired; a control module, used to increase the basic power generation level of at least some sections in the remaining driving section to obtain a target power generation level if the sum of the required power consumption of the slope sections is greater than the total energy recovery power, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy.

[0013] A third 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, any of the above-mentioned range extender control methods is implemented.

[0014] A fourth 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 range extender control method as described above is implemented.

[0015] The present application has at least the following beneficial technical effects: Based on the vehicle range extender control method, device, equipment and storage medium provided by the present application, the method includes: obtaining the section information of each segment of the vehicle in the remaining driving section; wherein the segment includes a slope section and a non-slope section, and the section information includes the slope, length and position; based on the section information, obtaining the required power consumption of the vehicle in each segment, and the total energy recovery power corresponding to the remaining driving section; if the sum of the required power consumption of the slope section is greater than the total energy recovery power, then the basic power generation level of at least part of the sections in the remaining driving section is increased to obtain the target power generation level, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy. Therefore, when the energy recovery power cannot balance the power consumption of the slope section, more power is generated in the entire section by increasing the power generation level, thereby ensuring the power demand for the entire journey, so as to avoid the vehicle generating a large amount of power in the uphill section, resulting in poor NVH performance of the vehicle.

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

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

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

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

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

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

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

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

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

[0025] Figure 8 It is a structural block diagram of an embodiment of a control device for a vehicle range extender provided by the present application;

[0026] Fig. 9 It is a schematic diagram of the structural framework of an embodiment of the electronic device provided by the present application;

[0027] Fig.10 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

[0028] 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.

[0029] 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.

[0030] The first aspect of the present application provides a vehicle range extender control method, Figure 1 1 is a flow chart of an embodiment of a vehicle range extender control method provided by the present application. Figure 1 , the method comprises the following steps:

[0031] S101: Obtaining the section information of each section of the remaining driving section of the vehicle; wherein the section includes a slope section and a non-slope section, and the section information includes a slope, a length and a position.

[0032] Specifically, the remaining travel section and section information can be obtained through navigation information, and the section between the current position of the vehicle and the end position is the remaining travel section. As the vehicle travels, the remaining travel section may be constantly changing. Therefore, the section information of the remaining travel section of the vehicle can be obtained in real time during the vehicle travel. For example, it can be obtained at the starting position of a section of the journey, or it can be obtained at a position in the middle of a section of the journey, etc., without specific limitation.

[0033] The segment includes a slope segment and a non-slope segment. At this time, the remaining driving section is divided into multiple segments according to the slope segment and the non-slope segment, that is, the remaining driving section consists of a slope segment and a non-slope segment. In some application scenarios, when the slope of a segment is greater than a preset slope, the corresponding segment is considered a slope segment, otherwise it is a non-slope segment. The preset slope can be a smaller angle, or even 0°.

[0034] The road section information includes the slope, length and position. In particular, when the segment is a slope, it is particularly necessary to obtain the slope of the slope so as to obtain the climbing power in the subsequent steps. Of course, the road section information can also include the speed information of the segment, etc., without specific limitation.

[0035] S102: Based on the road section information, the required power consumption of the vehicle in each section and the total energy recovery power corresponding to the remaining driving sections are obtained.

[0036] Combined with the above content, it can be seen that since the road section information can include information such as length, slope and speed, the power consumption of the vehicle in each section can be obtained based on the vehicle's own configuration information, and then the required power consumption of the vehicle in each section can be obtained. Of course, the required power consumption is the predicted power consumption, which usually has a certain gap with the actual power consumption, but the gap with the actual power consumption is usually small.

[0037] Under certain driving conditions, the vehicle will recover energy to obtain energy recovery electricity. The vehicle's energy recovery strategy will be set in advance. Based on the road section information, energy recovery strategy and vehicle configuration information, the total energy recovery electricity corresponding to the remaining driving section can be predicted.

[0038] S103: If the sum of the required electricity consumption on the slope section is greater than the total energy recovery electricity, the basic power generation level of at least part of the remaining driving section is increased to obtain the target power generation level, so as to control the vehicle's range extender to generate electricity based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy.

[0039] The above steps obtain the power demand of each segment, so the sum of the power demand of all slope sections can be obtained. If the sum of the power demand is greater than the total energy recovery power, it means that the power consumption on the slope exceeds the total energy recovery power, and the total energy recovery power of the remaining driving sections cannot meet the driving on the slope. In this case, it usually causes a serious drop in power when the vehicle is driving on an uphill section, which can easily cause the vehicle to generate electricity at a higher power, resulting in poor NVH performance of the vehicle and poor user experience.

[0040] In order to avoid the poor user experience caused by the vehicle generating electricity at a higher power on an uphill section, the present patent will increase the basic power generation level of at least part of the remaining driving section to obtain the target power generation level, so that the power generation level of the vehicle in the remaining driving section can be improved, thereby enabling the vehicle to generate more electricity to avoid the vehicle's power being reduced to a lower level on the uphill section and generating electricity at a higher power.

[0041] It should be understood that the preset power generation strategy is pre-set and can be a power generation strategy in the prior art. In the preset power generation strategy, the power generation level of the range extender can be determined by the real-time remaining power of the battery pack, thereby meeting the real-time demand of the vehicle for power generation intensity.

[0042] Real-time remaining power 20％ 30％ 60％ 80％ Power generation level 2 1.5 1 0

[0043] The above table shows the relationship between the real-time remaining power and the power generation level. When the real-time remaining power of the battery pack is 20%, the corresponding power generation level is level 2; when the real-time remaining power of the battery pack is 30%, the corresponding power generation level is level 1.5; when the real-time remaining power of the battery pack is 60%, the corresponding power generation level is level 1; when the real-time remaining power of the battery pack is 80%, the corresponding power generation level is level 0. Among them, level 0 does not mean no power generation, but the lowest power generation level.

[0044] As for the specific setting method of power generation level, in some application scenarios, when the real-time remaining power is greater than or equal to 20% and less than 30%, the power generation level can be less than level 2 and greater than level 1.5; when the remaining power is greater than or equal to 30% and less than 60%, the power generation level can be less than level 1.5 and greater than level 1, and the setting method for the remaining ranges is the same. Of course, in some other application scenarios, when the remaining power is less than 30% and greater than or equal to 20%, the corresponding power generation level is level 2; when the remaining power is less than 60% and greater than or equal to 30%, the corresponding power generation level is level 1.5, and the setting method for other ranges is the same.

[0045] It should be understood that each power generation level corresponds to a preset relationship curve between vehicle speed and power generation (vehicle speed-power curve). After determining the power generation level, when the range extender generates electricity, the power generation of the range extender can be determined by the vehicle speed. The higher the power generation level, the greater the power generation intensity of the range extender. At this time, at the same vehicle speed, the higher the power generation level, the higher the corresponding power generation, and thus has a greater power generation intensity.

[0046] According to the road section information of the remaining driving section, the configuration information of the vehicle and the preset power generation strategy, the basic power generation level of each road section of the remaining driving section can be obtained. It should be understood that what is described here is the basic power generation level of each road section, rather than the basic power generation level of each segment, because a segment may have multiple basic power generation levels to correspond to different road sections respectively.

[0047] Therefore, the remaining driving sections may correspond to multiple different basic power generation levels, some of which are relatively low. This patent can improve at least some of the basic power generation levels to obtain the target power generation level. For example, the remaining driving sections correspond to 5 basic power generation levels, of which 2 power generation levels are relatively low. At this time, these 2 lower power generation levels can be improved to obtain 2 target power generation levels. Among them, the basic power generation level and target power generation level determined at this time are both corresponding to the pre-set power generation levels of the road section. Only when the vehicle reaches the corresponding road section during the subsequent driving process will it generate electricity through the corresponding power generation level.

[0048] It should be understood that after the basic power generation level of at least part of the road section is increased to obtain the target power generation level, it is possible that all the target power generation levels are obtained, and in this case, power is generated at the target power generation levels corresponding to the road sections during the subsequent driving process. It is also possible that part of the target power generation level is obtained, while part of the basic power generation level remains unchanged, and in this case, power is generated at the target power generation level or basic power generation level corresponding to the road section during the subsequent driving process.

[0049] In summary, based on the above embodiments, when the total amount of energy recovered cannot balance the electricity consumption on the slope, more electricity is generated in the entire road section by increasing the power generation level, thereby ensuring the power demand for the entire journey, so as to avoid poor NVH performance of the vehicle due to high-power generation of the vehicle on uphill sections.

[0050] Figure 2 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0051] Combination Figure 2 In combination with the above content, in some specific embodiments, the step of improving the basic power generation level of at least part of the remaining driving section to obtain the target power generation level includes:

[0052] S201: Obtain a basic power generation level corresponding to the remaining driving section through a preset power generation strategy, and obtain the current remaining power of the vehicle's battery pack.

[0053] In combination with the above embodiments, the basic power generation level corresponding to the remaining driving section can be obtained by presetting the power generation strategy, section information and vehicle configuration information. The current remaining power of the vehicle's battery pack is the remaining power of the battery pack obtained at the current moment.

[0054] S202: If the current remaining power is greater than or equal to the preset remaining power, the basic power generation level that is lower than the first target power generation level is increased to the first target power generation level; wherein the first target power generation level corresponds to the preset remaining power and the target NVH standard.

[0055] The preset remaining power can be pre-set according to actual needs, and no specific restrictions are made here. In some application scenarios, the preset remaining power can be set to 30%, but it is not limited to this. The target NVH standard can also be set according to actual needs. When the vehicle meets the target NVH standard, the NVH performance of the vehicle is better. Among them, the first target power generation level is determined based on the target NVH standard of the vehicle, that is, when the power generation level is less than or equal to the first target power generation level, the NVH performance of the vehicle can generally meet the target NVH standard. In some application scenarios, the first target power generation level can be level 1.5, but it is not limited to this.

[0056] When the current remaining power is greater than or equal to the preset remaining power, it means that the current remaining power is relatively large. Although the power generation level needs to be increased, the NVH performance of the vehicle should also be considered. Therefore, this embodiment only increases the basic power generation level that is lower than the first target power generation level to the first target power generation level, and does not increase it to a power generation level that is higher than the first target power generation level. At this time, even if the power generation is performed at the first target power generation level, the NVH performance of the vehicle is generally good.

[0057] Combined with the above example, for example, if the preset remaining power is 30% and the first target power generation level is level 1.5, the current remaining power is 40%, and the basic power generation levels are 1.2, 1.3, 1.6, 1.7, and 1.8 respectively, then the power generation levels of 1.2 and 1.3 are increased to level 1.5, and the other basic power generation levels remain unchanged.

[0058] Figure 3 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0059] Combination Figure 3 In some specific embodiments, after the step of obtaining the basic power generation level corresponding to the remaining driving section through the preset power generation strategy and obtaining the current remaining power of the battery pack of the vehicle, that is, after the above step S201, it includes:

[0060] S301: If the current remaining power is less than the preset remaining power, the basic power generation level that is lower than the second target power generation level is increased to the second target power generation level; wherein the second target power generation level is higher than the first target power generation level.

[0061] If the current remaining power is less than the preset remaining power, it means that the current remaining power is small. At this time, when increasing the power generation level, you can ignore the NVH performance of the vehicle or consider the NVH performance to a lesser extent, and focus on the power of the battery pack. Therefore, the basic power generation level can be increased to a higher second target power generation level.

[0062] In some application scenarios, the second target power generation level may be level 2, which is a higher power generation level, or even the highest power generation level. In combination with the above example, the power generation levels of 1.2, 1.3, 1.6, 1.7, and 1.8 need to be increased to level 2.

[0063] Based on the above embodiments, the power generation level is improved to different degrees according to different remaining power levels, thereby adapting to the actual needs in different specific application scenarios.

[0064] Figure 4 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0065] Combination Figure 4 In some specific embodiments, if the sum of the required power consumption of the slope section is greater than the total power consumption of the energy recovery, then after the step of increasing the basic power generation level of at least part of the remaining driving section to obtain the target power generation level, so as to control the range extender of the vehicle to generate power based on the target power generation level, that is, after the above step S103, the method includes:

[0066] S401: Obtain the remaining power of the vehicle's battery pack when the current segment is completed, and obtain the predicted power generation of the next segment; wherein the slope segment includes an uphill segment and a downhill segment, and the next segment is an uphill segment.

[0067] The above embodiment realizes the setting of power generation level. After the setting is completed, the vehicle will generate power at the corresponding power generation level when it travels to the corresponding road section during the subsequent driving process. When the vehicle travels to the current segment, if the next segment is an uphill segment, the remaining power of the battery pack will be obtained when the current segment is completed, and the predicted power generation of the next segment will be obtained, that is, the predicted power generation of the next uphill segment will be obtained.

[0068] It should be understood that after determining that the segment is a slope section, the slope section can be further determined to be an uphill section or a downhill section according to the inclination of the slope section (horizontally inclined upward or horizontally inclined downward).

[0069] It should be understood that the above embodiment has acquired the power generation level of the next segment, and according to the configuration information of the vehicle and the road section information, etc., the power generation of the vehicle in the next segment can be acquired as the predicted power generation.

[0070] S402: If the sum of the remaining power and the predicted power generation is less than the required power consumption in the next segment, the initial power generation power of the vehicle's range extender is compensated to obtain the target power generation power, so as to control the range extender to generate power at the target power generation power in the next segment; wherein the initial power generation power is determined by a preset power generation strategy.

[0071] If the remaining power and the preset power generation are less than the required power consumption of the next segment, it means that the power of the vehicle battery pack cannot meet the power demand of the vehicle on the uphill section. In order to ensure that the power of the battery pack meets the power demand of the uphill section, the initial power generation will be increased to obtain a higher target power generation, thereby increasing the power generation of the vehicle on the uphill section to meet the driving needs.

[0072] Among them, the preset power generation strategy is pre-set, and the preset power generation strategy can determine the initial power generation power of the vehicle according to the power generation level of the vehicle, road section information, etc. Therefore, according to the previously determined power generation level, section information, vehicle configuration and other information of the uphill section, the initial power generation power of the uphill section can be obtained. Among them, the initial power generation power can be determined in advance, or it can be determined when power generation is about to begin, without specific restrictions. After the initial power generation power is determined, the initial power generation power can be compensated to obtain the target power generation power. Among them, the degree of compensation for the initial power generation power can be determined according to demand. For example, when generating electricity based on the compensated target power generation power, the power of the battery pack can meet the power demand of the vehicle climbing the slope.

[0073] Figure 5 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0074] Combination Figure 5 In some specific embodiments, the slope section includes an uphill section and a downhill section. After the step of obtaining the required power consumption of the vehicle in each section based on the section information and the total energy recovery power corresponding to the remaining driving section, that is, after the above step S102, it includes:

[0075] S501: If the sum of the required power consumption of the slope section is less than or equal to the total energy recovery power, the predicted power generation of each section is obtained.

[0076] If the sum of the power demand on the slope is less than or equal to the total power of energy recovery, it means that the total power of energy recovery can meet the power demand of the vehicle on the slope. At this time, the power consumption during the climbing process is allowed to decrease, and the power consumption during the downhill and energy recovery is used to make up for it, and the power generation level will not be increased throughout the whole process.

[0077] At this time, the predicted power generation of each segment can be obtained through the vehicle's preset power generation strategy, road section information and vehicle configuration information.

[0078] S502: According to the predicted power generation, the required power consumption and the current remaining power of the battery pack of the vehicle, the uphill section closest to the vehicle where the power of the battery pack cannot meet the driving power demand is determined as the uphill section to be compensated.

[0079] At this point, the required power consumption, predicted power generation and current remaining power of each segment are obtained, and the remaining power of the battery pack after driving through each segment can be obtained, that is, it can be determined which uphill sections the battery pack power cannot meet the corresponding power demand.

[0080] For example, there are 5 sections, the first section, the third section and the fifth section are all non-slope sections, and the second section and the fourth section are slope sections. Finally, the remaining power of the vehicle after driving through the first section cannot meet the power demand of the second section, but after the power generation in the third section, it can meet the power demand of the fourth section. It should be understood that the preset power generation strategy may make the power generation meet the power demand of the entire driving process and have good NVH performance overall, but it may not meet the power demand of a specific section (when the existing technology cannot meet the power demand of a certain section, it meets the power demand through temporary high-power power generation, but it will make the NVH performance of the vehicle poor), so this situation may exist. At this time, the second section is the uphill section to be compensated.

[0081] S503: Raise the basic power generation level that is lower than the first target power generation level in the uphill section to be compensated and its previous sections to the first target power generation level, so as to control the vehicle's range extender to generate power at the first target power generation level in the section corresponding to the first target power generation level; wherein the first target power generation level corresponds to the target NVH standard.

[0082] In order to ensure that the uphill section to be compensated has enough electricity, it is necessary to increase the power generation level of the uphill section to be compensated and its previous sections, that is, to increase the basic power generation level that is lower than the first target power generation level to the first target power generation level. In the subsequent driving process, when the uphill section to be compensated and its previous sections reach the section corresponding to the first target power generation level, power generation will be performed at the first power generation level. For the introduction of the first power generation level, please refer to the above related content.

[0083] In this embodiment, although the power generation level is not increased throughout the remaining driving section, the power generation level is increased for a specific section, so that the power of the battery pack can meet the driving needs of the uphill section, avoiding the poor NVH performance of the vehicle caused by generating electricity at a higher power when the power is insufficient on the uphill section.

[0084] Figure 6 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0085] Combination Figure 6 In some specific embodiments, after the step of raising the basic power generation level in the uphill section to be compensated and its previous sections that is lower than the first target power generation level to the first target power generation level, that is, after the above step S503, it includes:

[0086] S601: Obtain the remaining power of the battery pack after driving the previous segment of the uphill section to be compensated, and re-obtain the predicted power generation of the uphill section to be compensated as the corrected predicted power generation.

[0087] During the subsequent driving of the vehicle, after the previous segment of the uphill section to be compensated is completed, the remaining power of the battery pack is obtained. Although the above embodiment has obtained the predicted power generation of the uphill section to be compensated, the uphill section to be compensated may have undergone an upgrade in power generation level. Therefore, this step needs to further obtain the predicted power generation based on the corrected power generation level as the corrected predicted power generation.

[0088] S602: If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, the initial power generation power of the range extender of the uphill section to be compensated is increased to obtain the target power generation power; wherein the initial power generation power is determined by a preset power generation strategy, and the range extender generates power at the target power generation power on the uphill section to be compensated.

[0089] If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, it means that the remaining power of the battery pack cannot meet the driving power demand of the uphill section to be compensated. If a larger power is used to generate electricity when the power is low, the NVH performance of the vehicle will be poor.

[0090] In order to avoid generating electricity with a larger power on an uphill section, this embodiment compensates the initial power generation, thereby increasing the power generation more evenly throughout the uphill section to be compensated to meet the driving power demand, thereby avoiding the situation where the NVH performance of the vehicle is poor due to high power generation. The steps of compensating the initial power generation to obtain the target power generation can refer to the above embodiment and will not be repeated here.

[0091] Figure 7 It is a flow chart of another embodiment of the vehicle range extender control method provided in the present application.

[0092] Combination Figure 7 In some specific embodiments, after the step of obtaining the remaining power of the battery pack after the previous segment of the uphill section to be compensated is completed and re-obtaining the predicted power generation of the uphill section to be compensated as the corrected predicted power generation, that is, after the above step S601, the method includes:

[0093] S701: If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, the power generation level that is lower than the second target power generation level in the uphill section to be compensated is increased to the second target power generation level to control the range extender to generate power at the second target power generation level in the uphill section to be compensated; wherein the second target power generation level is higher than the first target power generation level.

[0094] If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, it means that the remaining power of the battery pack cannot meet the driving power demand of the uphill section to be compensated. Different from the above embodiment, this embodiment does not compensate the power generation, but further improves the power generation level of the uphill section to be compensated. That is, the power generation level lower than the second target power generation level is further improved to the second power generation level.

[0095] It should be understood that by further increasing the power generation level, the initial power generation of the vehicle can be higher, and generally the power generation can meet the power demand of uphill driving. In addition, this embodiment also increases the power generation throughout the entire process, which can avoid the problem of poor NVH performance of the vehicle caused by suddenly generating higher power.

[0096] A second aspect of the present application provides a control device 20 for a vehicle range extender, Figure 8 1 is a structural block diagram of an embodiment of a control device 20 for a vehicle range extender provided in the present application.

[0097] Combination Figure 8 , the control device 20 of the vehicle range extender includes an acquisition module 21 and a control module 22. The acquisition module 21 is used to acquire the section information of each segment of the vehicle in the remaining driving section: wherein the segment includes a slope section and a non-slope section, and the section information includes the slope, length and position of the slope section; based on the section information, the required power consumption of the vehicle in each segment and the total energy recovery power corresponding to the remaining driving section are acquired. The control module 21 is used to increase the basic power generation level of at least part of the sections in the remaining driving section to obtain the target power generation level if the sum of the required power consumption of the slope section is greater than the total energy recovery power, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy. Wherein, regarding the specific execution method of the acquisition module 21 and the control module 22 for the above steps, reference can be made to the relevant content of the above embodiment, and no specific limitation is made here.

[0098] A third aspect of the present application provides an electronic device, comprising: a processor; and a memory for storing a computer program, which, when executed by the processor, implements the range extender control method in any of the above embodiments.

[0099] Fig. 9It is a schematic diagram of the structural framework of an embodiment of the electronic device 500 provided in the present application.

[0100] 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 through the bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0101] 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.

[0102] 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.

[0103] A fourth aspect of the present application provides a computer-readable storage medium 40, Fig.10 It is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium 40 provided in the present application.

[0104] Combination Fig.10 A computer program 41 is stored on the computer-readable storage medium 40. When the computer program 41 is executed by the processor, the range extender control method in any of the above embodiments is implemented.

[0105] 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 (Erasable Programmable Read On ly 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, 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.

[0106] In summary, based on the vehicle range extender control method, device, equipment and storage medium provided by the present application, the method includes: obtaining the section information of each segment of the vehicle in the remaining driving section: wherein the segment includes a slope section and a non-slope section, and the section information includes the slope, length and position of the slope section; based on the section information, obtaining the required power consumption of the vehicle in each segment, and the total energy recovery power corresponding to the remaining driving section; if the sum of the required power consumption of the slope section is greater than the total energy recovery power, then the basic power generation level of at least part of the sections in the remaining driving section is increased to obtain the target power generation level, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy. Therefore, when the energy recovery power cannot balance the power consumption of the slope section, more power is generated in the entire section by increasing the power generation level, thereby ensuring the power demand for the entire journey, so as to avoid the vehicle generating a large amount of power in the uphill section, resulting in poor NVH performance of the vehicle.

[0107] 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 vehicle range extender control method, characterized in that: include: Obtaining the section information of each segment of the remaining driving section of the vehicle; wherein the segment includes a slope section and a non-slope section, and the section information includes a slope, a length, and a position; Based on the road section information, the required power consumption of the vehicle in each of the sections and the total energy recovery power corresponding to the remaining driving sections are obtained; If the sum of the required electricity consumption on the slope section is greater than the total energy recovery electricity, the basic power generation level of at least part of the sections within the remaining driving section is increased to obtain a target power generation level, so as to control the vehicle's range extender to generate electricity based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy.

2. The range extender control method according to claim 1, characterized in that: The step of improving the basic power generation level of at least part of the remaining driving section to obtain a target power generation level comprises: Obtaining the basic power generation level corresponding to the remaining driving section through the preset power generation strategy, and obtaining the current remaining power of the battery pack of the vehicle; If the current remaining power is greater than or equal to the preset remaining power, the basic power generation level that is lower than the first target power generation level is increased to the first target power generation level; wherein the first target power generation level corresponds to the preset remaining power and the target NVH standard.

3. The range extender control method according to claim 2, characterized in that: After the steps of obtaining the basic power generation level corresponding to the remaining driving section through the preset power generation strategy and obtaining the current remaining power of the battery pack of the vehicle, the method includes: If the current remaining power is less than the preset remaining power, the basic power generation level that is lower than the second target power generation level is increased to the second target power generation level; wherein the second target power generation level is higher than the first target power generation level.

4. The range extender control method according to claim 1, characterized in that: If the sum of the required power consumption of the slope section is greater than the total energy recovery power consumption, then after the step of increasing the basic power generation level of at least part of the remaining driving section to obtain a target power generation level, so as to control the range extender of the vehicle to generate power based on the target power generation level, the method further comprises: Obtaining the remaining power of the battery pack of the vehicle when the current segment is completed, and obtaining the predicted power generation of the next segment; wherein the slope segment includes an uphill segment and a downhill segment, and the next segment is the uphill segment; If the sum of the remaining power and the predicted power generation is less than the required power consumption in the next segment, the initial power generation power of the vehicle's range extender is compensated to obtain the target power generation power, so as to control the range extender to generate power at the target power generation power in the next segment; wherein the initial power generation power is determined by a preset power generation strategy.

5. The range extender control method according to claim 1, characterized in that: The slope section includes an uphill section and a downhill section; After the step of obtaining the required power consumption of the vehicle in each of the segments and the total energy recovery power corresponding to the remaining driving segments based on the segment information, the method includes: If the sum of the required power consumption of the slope section is less than or equal to the total energy recovery power, the predicted power generation of each of the sections is obtained; According to the predicted power generation, the required power consumption and the current remaining power of the battery pack of the vehicle, the uphill section closest to the vehicle where the power of the battery pack cannot meet the driving power demand is determined as the uphill section to be compensated; The basic power generation level that is lower than the first target power generation level in the uphill section to be compensated and the section before it is increased to the first target power generation level, so as to control the range extender of the vehicle to generate power at the first target power generation level in the section corresponding to the first target power generation level; wherein the first target power generation level corresponds to the target NVH standard.

6. The range extender control method according to claim 5, characterized in that: After the step of raising the basic power generation level in the uphill section to be compensated and the previous section which is lower than the first target power generation level to the first target power generation level, the method comprises: Obtaining the remaining power of the battery pack when the previous segment of the uphill section to be compensated is completed, and re-obtaining the predicted power generation of the uphill section to be compensated as the corrected predicted power generation; If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, the initial power generation power of the range extender of the uphill section to be compensated is increased to obtain the target power generation power; The initial power generation is determined by a preset power generation strategy, and the range extender generates power at the target power generation on the uphill section to be compensated.

7. The range extender control method according to claim 6, characterized in that: After the step of obtaining the remaining power of the battery pack when the previous segment of the uphill section to be compensated is completed and re-obtaining the predicted power generation of the uphill section to be compensated as the corrected predicted power generation, the method includes: If the sum of the corrected predicted power generation and the remaining power is less than the required power consumption corresponding to the uphill section to be compensated, the power generation level in the uphill section to be compensated that is lower than the second target power generation level is increased to the second target power generation level to control the range extender to generate power at the second target power generation level in the uphill section to be compensated; wherein the second target power generation level is higher than the first target power generation level.

8. A control device for a vehicle range extender, characterized in that: include: An acquisition module is used to acquire the section information of each segment of the remaining driving section of the vehicle: wherein the segment includes a slope section and a non-slope section, and the section information includes the slope, length and position of the slope section; based on the section information, the required power consumption of the vehicle in each segment and the total energy recovery power corresponding to the remaining driving section are acquired; A control module is used to increase the basic power generation level of at least part of the remaining driving section to obtain a target power generation level if the sum of the required power consumption of the slope section is greater than the total energy recovery power, so as to control the vehicle's range extender to generate power based on the target power generation level; wherein the basic power generation level is determined by a preset power generation strategy.

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 range extender control method according to any one of claims 1 to 7 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 range extender control method according to any one of claims 1 to 7 is implemented.

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