Method and apparatus for controlling range extender of vehicle, electronic device, and computer-readable storage medium

Abstract

The present application provides a method and apparatus for controlling a range extender of a vehicle, an electronic device, and a computer-readable storage medium. The method comprises: acquiring a navigation route of a vehicle; acquiring road condition information of the navigation route, and on the basis of the road condition information, acquiring required power generation amounts of a range extender corresponding to different traveling road segments; acquiring preset NVH standards for the traveling road segments on the basis of the road condition information, and acquiring the maximum power generation amount of the range extender for the traveling road segments on the basis of the preset NVH standards, wherein a preset correspondence is present between the road condition information and the preset NVH standards; and in response to detecting a first traveling road segment for which the required power generation amount is greater than the maximum power generation amount and a second traveling road segment for which the required power generation amount is less than the maximum power generation amount, controlling the power generation amount of the range extender for the second traveling road segment to be greater than the corresponding required power generation amount, wherein the second traveling road segment precedes the first traveling road segment.

Description

Method and device for controlling vehicle range extender, electronic device and computer readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] The present application claims priority to the Chinese patent application No. 202411094616.X filed on August 10, 2024, and entitled "Method and device for controlling vehicle range extender, electronic device and computer readable storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

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

[0004] When the battery power of a range-extended vehicle is below a certain threshold, the range extender generates power to provide electrical energy for the drive motor. When the range extender works to generate power, it causes a large vibration and noise, which reduces the NVH (Noise, Vibration and Harshness) performance of the vehicle.

[0005] Currently, in order to provide a better driving experience for the occupants, the NVH performance of the vehicle is controlled to maintain a certain standard, under which the occupants have a weak experience of noise and vibration. In the prior art, in some road conditions, the power generation of the range extender is too large, which reduces the NVH performance of the vehicle and is lower than a certain standard, resulting in a poor experience for the occupants. SUMMARY

[0006] The first aspect of the present application provides a method for controlling a vehicle range extender, comprising:

[0007] obtaining a navigation route of the vehicle; wherein the navigation route comprises a plurality of driving sections;

[0008] obtaining road condition information of the navigation route, and obtaining demand power generation of the range extender corresponding to different driving sections based on the road condition information; wherein the road condition information comprises road information and environmental information;

[0009] obtaining a preset NVH standard of the driving section based on the road condition information, and obtaining a maximum power generation of the range extender under the driving section based on the preset NVH standard; wherein the road condition information and the preset NVH standard have a preset corresponding relationship; and

[0010] in response to detecting a first driving section in which the demand power generation is greater than the maximum power generation, and a second driving section in which the demand power generation is less than the maximum power generation, controlling the power generation of the range extender in the second driving section to be greater than the demand power generation corresponding to the second driving section; wherein the second driving section is before the first driving section.

[0011] In some embodiments, the step of obtaining the required power generation of the range extender corresponding to the driving section based on the road condition information comprises:

[0012] obtaining, based on the road condition information, a power variation of the driving power of the vehicle in the driving section compared to the preset basic road condition information; and

[0013] obtaining, based on the power variation, a power generation variation corresponding to the driving section, and taking the sum of the power generation variation and a preset basic power generation as the required power generation of the range extender corresponding to the driving section, wherein the preset basic power generation is the power generation required by the range extender in the driving section based on the preset basic road condition information.

[0014] In some embodiments, the road condition information comprises an actual slope of the driving section, and the preset basic power generation is the power generation required by the range extender in the driving section based on the preset basic slope.

[0015] The step of obtaining, based on the road condition information, a power variation of the driving power of the vehicle in the driving section compared to the preset basic road condition information comprises:

[0016] obtaining, based on the actual slope, a power variation of the driving power of the vehicle in the driving section compared to the preset basic slope.

[0017] In some embodiments, the preset basic power generation is the power generation required by the range extender in the driving section based on the preset basic slope and a preset basic load.

[0018] The step of obtaining, based on the road condition information, a power variation of the driving power of the vehicle in the driving section compared to the preset basic road condition information comprises:

[0019] obtaining, based on the actual slope and an actual load of the vehicle, a power variation of the driving power of the vehicle in the driving section compared to the preset basic slope and the preset basic load.

[0020] In some embodiments, the road condition information comprises a predicted wind speed and a predicted wind direction of the driving section, and the preset basic power generation is the power generation required by the range extender in the driving section based on a preset basic wind speed and a preset basic wind direction.

[0021] The step of obtaining, based on the road condition information, a power variation of the driving power of the vehicle in the driving section compared to the preset basic road condition information comprises:

[0022] obtaining, based on the predicted wind speed and the predicted wind direction, a power variation of the driving power of the vehicle in the driving section compared to the preset basic wind speed and the preset basic wind direction.

[0023] In some embodiments, the step of obtaining the preset NVH standard of the driving section based on the road condition information comprises: in response to obtaining, based on the road condition information, that the driving section is a slope road, obtaining a slope type of the slope road and a slope degree of the slope road based on the road condition information; wherein the slope type comprises an uphill and a downhill; and

[0024] The preset NVH standard of the driving section is obtained based on the slope type and the slope degree of the slope road.

[0025] In some embodiments, the step of obtaining the preset NVH standard of the driving section based on the road condition information comprises: determining, based on the road condition information, a congested driving section in the navigation route; and

[0026] obtaining a preset NVH standard corresponding to the congested driving section; wherein the maximum power generation of the range extender under the preset NVH standard corresponding to the congested driving section is less than the preset power generation.

[0027] In some embodiments, the step of obtaining the preset NVH standard of the driving section based on the road condition information comprises:

[0028] in response to obtaining, based on the road condition information, that the driving section is in a rainfall environment, obtaining a rainfall size degree of the driving section; and

[0029] obtaining the preset NVH standard of the driving section based on the rainfall size degree; wherein the maximum power generation of the range extender corresponding to the preset NVH standard corresponding to a larger rainfall size degree is larger.

[0030] In some embodiments, in response to detecting a first driving section with a demand power generation greater than the maximum power generation and a second driving section with a demand power generation less than the maximum power generation, the step of controlling the range extender to generate power greater than the corresponding demand power generation in the second driving section comprises:

[0031] in response to detecting a first driving section with a demand power generation greater than the maximum power generation and a second driving section with a demand power generation less than the maximum power generation, obtaining a first power difference between the demand power generation and the maximum power generation of the first driving section, and obtaining a second power difference between the maximum power generation and the demand power generation of the second driving section;

[0032] in response to detecting that the first power difference is greater than or equal to the second power difference, controlling the range extender to generate power at the maximum power generation corresponding to the second driving section;

[0033] in response to detecting that the first power difference is less than the second power difference, controlling the range extender to generate power at a power generation equal to the sum of the demand power generation corresponding to the second driving section and the first power difference.

[0034] The second aspect of the present application provides a control device of a vehicle range extender, comprising:

[0035] an acquisition module configured to acquire a navigation route of the vehicle, wherein the navigation route comprises a plurality of driving sections, acquire road condition information of the navigation route, and acquire a required power generation amount of the range extender corresponding to different driving sections based on the road condition information, wherein the road condition information comprises road information and environmental information, acquire a preset NVH standard of the driving section based on the road condition information, and acquire a maximum power generation amount of the range extender in the driving section based on the preset NVH standard, wherein the road condition information and the preset NVH standard have a preset corresponding relationship, and

[0036] a control module configured to, when a first driving section in which the required power generation amount is greater than the maximum power generation amount and a second driving section in which the required power generation amount is less than the maximum power generation amount are detected, control the range extender to generate a power greater than the required power generation amount in the second driving section, wherein the second driving section is before the first driving section.

[0037] The third aspect of the present application provides an electronic device, comprising: one or more processors and one or more memories; the memory is configured to store a computer program, and the computer program is executed by the one or more processors to implement the control method of the vehicle range extender according to any one of the above.

[0038] The fourth aspect of the present application provides a computer readable storage medium, and the storage medium stores a computer program, and the computer program is executed by one or more processors to implement the control method of the vehicle range extender according to any one of the above. BRIEF DESCRIPTION OF DRAWINGS

[0039] The accompanying drawings are only used to illustrate the embodiments and are not considered as limitations of the present application. Moreover, the same reference signs are used to represent the same components throughout the drawings. In the drawings:

[0040] FIG. 1 is a flowchart of a control method of a vehicle range extender according to one or more embodiments of the present application;

[0041] FIG. 2 is a flowchart of another control method of a vehicle range extender according to one or more embodiments of the present application;

[0042] FIG. 3 is a flowchart of still another control method of a vehicle range extender according to one or more embodiments of the present application;

[0043] FIG. 4 is a flowchart of still another control method of a vehicle range extender according to one or more embodiments of the present application;

[0044] FIG. 5 is a flowchart of still another control method of a vehicle range extender according to one or more embodiments of the present application;

[0045] FIG. 6 is a flowchart of another method for controlling a vehicle range extender according to one or more embodiments of the present application;

[0046] FIG. 7 is a schematic diagram of a control device for a vehicle range extender according to one or more embodiments of the present application;

[0047] FIG. 8 is a schematic diagram of an electronic device according to one or more embodiments of the present application;

[0048] FIG. 9 is a schematic diagram of a computer-readable storage medium according to one or more embodiments of the present application. DETAILED DESCRIPTION

[0049] Exemplary embodiments of the present application will be described herein below with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it is understood that the present application can be embodied in various forms and should not be limited by the embodiments set forth herein. All other embodiments that a person of ordinary skill in the art obtains based on the embodiments of the present application without creative work are within the scope of the present application.

[0050] If the present application has a description involving "first", "second", etc., the description of "first", "second", etc. is only for the purpose of description and should not be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B schemes. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it. When the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present application.

[0051] The first aspect of the present application provides a method for controlling a vehicle range extender. FIG. 1 is a flowchart of a method for controlling a vehicle range extender according to one or more embodiments of the present application. In conjunction with FIG. 1, the method includes the following steps:

[0052] S11: Obtain a navigation route of the vehicle; wherein the navigation route includes a plurality of driving segments.

[0053] The navigation route of the vehicle can be obtained by the navigation software installed on the vehicle. The starting point of the navigation segment is the current position of the vehicle, and the end point is the destination position. The navigation software can obtain a plurality of navigation routes and present them to the user, and the user can select one from the plurality of navigation routes.

[0054] The driving sections in the navigation route can be divided according to various division manners, and the number of driving sections can be set to be relatively large to achieve fine division of the navigation route. At this time, different driving sections can have different driving road conditions, or can have the same driving road conditions, which are not specifically limited here.

[0055] S12: Obtain road condition information of the navigation route, and obtain the demand power generation of the range extender corresponding to different driving sections based on the road condition information; wherein the road condition information includes road information and environment information.

[0056] This step obtains the road condition information of the entire navigation route, and can continuously obtain the road condition information during vehicle driving, thereby updating the road condition information of the navigation route in real time. At this time, different driving sections correspond to road condition information, and the road condition information corresponding to different driving sections can be different.

[0057] The road information is the information of the road itself, for example, the road information can include the type, slope, friction, width of the road, and specific driving conditions on the road, etc., which are not specifically limited. The environment information is the environment information of the environment where the navigation route is located, and the environment information can change over time, so the accuracy of the environment information can be ensured by continuously updating the environment information.

[0058] It should be understood that in the range extender control strategy in the prior art, the demand power generation of the range extender is generally related to the configuration of the vehicle, the current speed of the vehicle, etc., and the road condition information of the driving road is not considered. However, the road condition information of the driving road will affect the driving power of the vehicle to some extent, and then affect the demand power generation of the range extender. Therefore, based on the determination strategy of the demand power generation of the range extender in the prior art, when the road condition greatly affects the driving power of the vehicle, the demand power generation of the range extender determined will be greatly different from the actual demand of the vehicle. At this time, if the determined demand power generation is small, it may cause the battery pack to continuously reduce the power and affect the power preservation performance of the vehicle, and if the determined demand power generation is large, it may cause the range extender to charge the battery pack, thereby causing high energy consumption of the vehicle.

[0059] The embodiment obtains the demand power generation of the range extender based on the road condition information, so that the demand power generation of the range extender is more in line with the actual demand of the vehicle, and the power preservation performance of the vehicle can be improved and the energy consumption of the vehicle can be reduced.

[0060] It should be understood that based on the road condition information, the demand power generation of the range extender corresponding to different driving sections is obtained, that is, the demand power generation corresponding to each driving section is obtained, so that one driving section corresponds to one demand power generation.

[0061] S13: acquire a preset NVH standard of the driving road section based on the road condition information, and acquire a maximum power generation of the range extender under the driving road section based on the preset NVH standard; wherein the road condition information and the preset NVH standard have a preset corresponding relationship.

[0062] It should be understood that the NVH standard reflects the performance of the vehicle NVH. In some embodiments, the higher the NVH standard, the better the NVH performance of the vehicle if this standard is reached, at which time the vibration, noise, etc. of the vehicle is weaker.

[0063] It should be understood that in different driving states of the vehicle, scenarios of the road condition information, the user's requirements for the NVH performance of the vehicle are different. For example, in the case of high vehicle speed, the outside is relatively noisy, the user's perception of vibration and noise is poor, so the NVH performance at this time can be poor, and a lower NVH standard can be set. In the case of low vehicle speed, the environment inside and outside the vehicle is relatively quiet, the user's perception of vibration and noise is strong, at this time the vehicle needs to have good NVH performance, and a higher NVH standard can be set. In addition, in addition to the user's perception factor, even in some road conditions, the range extender needs to have a higher power generation, at which time the user needs to tolerate to a certain extent, at which time the NVH performance can be poor.

[0064] It should be understood that this embodiment mainly focuses on the relationship between the road condition information and the NVH standard, so other factors affecting the NVH standard are not displayed. At this time, the road condition information and the preset NVH standard have a preset corresponding relationship, which can not be a one-to-one relationship between the road condition information and the preset NVH standard. The road condition information can be combined with the factors related to the driving state of the vehicle, such as the current vehicle speed, as a whole, and the whole has a one-to-one preset relationship with the preset NVH standard. At this time, based on the road condition information, the preset NVH standard of the driving road section can be acquired based on the road condition information and the driving state information of the vehicle, etc. to acquire the preset NVH standard of the vehicle. Of course, the vehicle driving state information here is the predicted driving state information of the vehicle under the driving road section.

[0065] Under the preset NVH standard, in order to ensure that the vehicle reaches the preset NVH standard, the vibration, noise, etc. of the vehicle needs to be lower than the threshold corresponding to the standard, and the power generation of the range extender has a greater impact on the vibration and noise. At this time, the maximum power generation of the range extender under the driving road section based on the preset NVH standard can establish a preset relationship between the NVH standard and the maximum power generation of the range extender. At this time, when the power generation of the range extender is less than the maximum power generation, the vehicle generally can reach the preset NVH standard, and when the power generation of the range extender is greater than the maximum power generation, the vehicle generally cannot reach the preset NVH standard.

[0066] S14: in response to detecting that the first driving section has a demand power generation greater than the maximum power generation and the second driving section has a demand power generation less than the maximum power generation, controlling the range extender to generate more power than the corresponding demand power generation in the second driving section; wherein the second driving section is before the first driving section.

[0067] At this time, the first driving section and the second driving section are both driving sections described in the above embodiments, and the first driving section has a demand power generation greater than the maximum power generation and the second driving section has a demand power generation less than the maximum power generation.

[0068] The embodiment controls the range extender to generate more power than the corresponding demand power generation in the second driving section, which generates more power in the second driving section before the first driving section. After entering the first driving section, the power generation of the range extender can be controlled to not exceed the maximum power generation to ensure that the vehicle meets the preset NVH standard in the first driving section. Although the power generation of the range extender cannot meet the demand power generation in this process, the power generated by the second driving section can still be used in the second driving section, which will not cause the power of the battery pack to continuously decrease, thereby ensuring the power preservation performance of the vehicle. Of course, in order to ensure that the vehicle meets the preset NVH standard in the second driving section, the power generation of the range extender can be controlled to be less than the maximum power generation corresponding to the second driving section.

[0069] In summary, when the range extender generates power at the demand power generation in the first driving section, which causes the vehicle to have poor NVH performance, the range extender is controlled to generate more power in the second driving section before the first driving section, which can reduce the power generation pressure in the first driving section, thereby ensuring that the vehicle works at a smaller power generation power in the first driving section, and improving the NVH performance of the vehicle on the basis of ensuring the power preservation performance of the vehicle, to improve the experience of the user.

[0070] FIG. 2 is a flowchart of an embodiment of a control method of a vehicle range extender provided by the present application. In combination with FIG. 2, in some embodiments, the step of obtaining the demand power generation of the range extender corresponding to different driving sections based on road condition information includes:

[0071] S21: obtaining, based on the road condition information, a power change amount of the driving power of the vehicle in the driving section compared to preset basic road condition information.

[0072] The basic road condition information can be preset. The power change amount obtained in this step is the difference between the driving power of the vehicle under the road condition information and the driving power of the vehicle under the basic road condition information when other conditions remain unchanged.

[0073] S22: Obtain the power generation change amount corresponding to the driving section based on the power change amount, and take the sum of the power generation change amount and the preset basic power generation as the demand power generation of the range extender corresponding to the driving section; wherein the preset basic power generation is the power generation required by the range extender of the vehicle in the driving section and on the basis of the preset basic road condition information.

[0074] The vehicle driving state (including the vehicle speed information) of the preset section can be determined in a predicted manner. Based on the predicted driving state and the road condition information, the power generation required by the range extender of the vehicle in the driving section and on the basis of the preset basic road condition information can be obtained and taken as the preset basic power generation.

[0075] Further, the demand power generation of the driving section is the sum of the power generation change amount and the preset basic power generation. It should be understood that, in the prior art, the demand power generation is not determined by considering the road condition information, and therefore the demand power generation determined in the prior art is actually similar to the preset basic power generation in the embodiment. In the embodiment, the demand power generation is obtained based on the power generation change amount, and the road condition information is fully considered, so that the demand power generation obtained is more accurate.

[0076] In combination with the content of the above embodiment, in some embodiments, the road condition information includes an actual slope of the driving section, which can be obtained through map information, sensor information, etc., and is not specifically limited herein. At this time, the preset basic power generation is the power generation required by the range extender of the vehicle in the driving section and on the basis of the preset basic slope. In some embodiments, the preset basic slope can be 0. At this time, the step of obtaining the power change amount of the driving power of the vehicle in the driving section compared with the preset basic road condition information based on the road condition information, i.e., the above step S21, includes:

[0077] Based on the actual slope, obtain the power change amount of the driving power of the vehicle in the driving section compared with the preset basic slope.

[0078] Specifically, the power change amount obtained in this step is the difference between the driving power of the vehicle under the actual slope and the driving power of the vehicle under the preset basic slope when other conditions remain unchanged. At this time, the difference between the actual slope and the preset basic slope can be obtained, and the power change amount can be further obtained based on the slope difference. The driving power corresponding to the actual slope can also be obtained, and the driving power of the preset basic slope can also be obtained, and the difference between the two can be obtained to obtain the power change amount, which is not specifically limited herein.

[0079] Further, in some embodiments, the preset basic power generation is the power generation required by the range extender of the vehicle in the driving section based on the preset basic slope and the preset basic load. At this time, based on the actual slope, the step of obtaining the power variation of the driving power of the vehicle in the driving section compared with the preset basic slope includes:

[0080] Based on the actual slope and the actual load of the vehicle, the power variation of the driving power of the vehicle in the driving section compared with the preset basic slope and the preset basic load is obtained.

[0081] It should be understood that the above embodiment introduces slope information to obtain the power variation, and in this embodiment, slope information and load information are introduced at the same time to obtain the power variation. In this embodiment, the power variation obtained based on the actual slope and the actual load of the vehicle is not a simple addition of the power variation based on the actual slope and the power variation based on the actual load. Considering that the actual slope and the actual load will affect each other, this embodiment comprehensively considers the actual slope and the actual load as a whole to obtain the power variation.

[0082] In some embodiments, the road condition information includes a predicted wind speed and a predicted wind direction of the driving section. In some embodiments, the predicted wind speed is 0. At this time, the preset basic power generation is the power generation required by the range extender of the vehicle in the driving section based on the preset basic wind speed and the preset basic wind direction.

[0083] Based on the road condition information, the step of obtaining the power variation of the driving power of the vehicle in the driving section compared with the preset basic road condition information, i.e., the above step S21, includes:

[0084] Based on the predicted wind speed and the predicted wind direction, the power variation of the driving power of the vehicle in the driving section compared with the preset basic wind speed and the preset basic wind direction is obtained. Wherein, the difference between the predicted wind speed and the predicted wind direction compared with the preset basic wind speed and the preset basic wind direction can be obtained to further obtain the power variation based on the difference.

[0085] Therefore, in this embodiment, the influence of the preset wind speed and the preset wind direction on the power variation is referred to, so that the required power generation obtained is more accurate.

[0086] In summary, the power variation of the vehicle can be obtained based on the slope, the load, the current wind speed and the current wind direction at the same time, and at this time, the preset basic power generation is the power generation required by the range extender of the vehicle in the driving section based on the preset basic slope, the preset basic load, the preset basic wind direction and the preset basic wind speed. And the way of obtaining the power variation based on each factor can refer to the related introduction in the above embodiments to obtain the power variation under each factor respectively, and add to obtain the total power variation.

[0087] FIG. 3 is a flowchart of a control method of a vehicle range extender according to one or more embodiments of the present application. In some embodiments, the step of obtaining a preset NVH standard of a driving section based on road condition information comprises:

[0088] S31: in response to obtaining that the driving section is a slope road based on the road condition information, obtaining a slope type of the slope road and a slope degree of the slope road based on the road condition information; wherein the slope type comprises an uphill and a downhill.

[0089] It should be understood that when the vehicle is driving on a slope road, the slope type and the slope degree of the slope road have a greater impact on the NVH standard. Therefore, the slope type and the slope degree are obtained in this step, which can be obtained by means of map information, sensing information, historical record information, etc.

[0090] S32: obtaining the preset NVH standard of the driving section based on the slope type and the slope degree of the slope road.

[0091] It should be understood that when the vehicle is driving uphill, the vehicle speed is generally small, at which time the user is more likely to perceive vibration and noise. If the NVH standard is set to be high only based on the factor of vehicle speed. However, when the vehicle is driving uphill, the power consumption increases, and if the NVH standard is set to be low only based on the factor of power consumption, the maximum power generation can be higher. Moreover, the slope degree has a greater impact on the vehicle speed and the power consumption.

[0092] Similarly, when the vehicle is driving downhill, the vehicle speed and the power consumption are greatly affected, which in turn affects the setting of the NVH standard. Moreover, the slope degree has a greater impact on the vehicle speed and the power consumption.

[0093] Therefore, at this time, the slope type and the slope degree of the slope road need to be considered comprehensively to indirectly consider the power consumption and the vehicle speed of the slope driving to determine the appropriate NVH standard.

[0094] FIG. 4 is a flowchart of a control method of a vehicle range extender according to one or more embodiments of the present application. In some embodiments, the step of obtaining a preset NVH standard of a driving section based on road condition information comprises:

[0095] S41: determining a congested driving section in a navigation route based on road condition information.

[0096] At this time, the congested driving section can be directly determined by the road condition information in the navigation information.

[0097] S42: obtaining a preset NVH standard corresponding to the congested driving section; wherein the maximum power generation of the range extender is less than a preset power generation under the preset NVH standard corresponding to the congested driving section.

[0098] It should be understood that when driving on a congested driving section, the user is easy to perceive vibration, noise, etc., and the user is easy to get car sick. Therefore, on the congested driving section, the NVH standard can be set to be higher, and thus the maximum power generation is lower, so that the maximum power generation of the range extender is less than the preset power generation.

[0099] FIG. 5 is a flowchart of a control method of a vehicle range extender according to one or more embodiments of the present application. In some embodiments, the step of obtaining a preset NVH standard of a driving section based on road condition information, in combination with FIG. 5, includes:

[0100] S51: Based on the road condition information, it is determined that the environment of the driving section is a rainfall environment, and then the rainfall size of the driving section is obtained.

[0101] At this time, the rainfall size of the driving section can be obtained through weather information, sensor information, etc. The rainfall size can be measured by the rainfall value per unit area per unit time.

[0102] S52: Obtain the preset NVH standard of the driving section based on the rainfall size; wherein the preset NVH standard corresponding to a larger rainfall size corresponds to a larger maximum power generation of the range extender.

[0103] It should be understood that rainfall will directly affect the perception of vibration and noise by people in the vehicle. When the rainfall is large, the perception of vibration and noise in the vehicle by people in the vehicle is reduced, and at this time a higher NVH standard can be set, and thus the maximum power generation of the range extender is larger.

[0104] In summary, the above-mentioned embodiments of determining the NVH standard can be combined with each other. For example, the NVH standard of the vehicle can be obtained by simultaneously using slope information, congestion information and rainfall information. For example, the preset NVH standard of the driving section can be obtained based on the slope type, the slope of the slope, the rainfall size and the driving section with congestion, and under the condition that other conditions remain unchanged, the maximum power generation of the range extender is less than the preset power generation, and under the condition that other conditions remain unchanged, the preset NVH standard corresponding to a larger rainfall size corresponds to a larger maximum power generation of the range extender.

[0105] FIG. 6 is a flowchart of a control method of a vehicle range extender according to one or more embodiments of the present application. In some embodiments, in response to detecting a first driving section with a demand power generation greater than a maximum power generation, and a second driving section with a demand power generation less than the maximum power generation, the step of controlling the range extender to generate power greater than the corresponding demand power generation in the second driving section, i.e., the above-mentioned step S14, includes:

[0106] S61: In response to detecting that the first driving section has a demand power generation greater than the maximum power generation and the second driving section has a demand power generation less than the maximum power generation, obtaining a first power difference between the demand power generation and the maximum power generation of the first driving section, and obtaining a second power difference between the maximum power generation and the demand power generation of the second driving section.

[0107] It should be understood that in order to ensure the NVH performance of the vehicle, even if the first driving section generates power at the maximum power generation, compared with the demand power generation, there is still a first power difference. If the second driving section generates power at the demand power generation, there is still a second power difference in the power generation space on the basis of ensuring the NVH performance of the vehicle.

[0108] S62: In response to detecting that the first power difference is greater than or equal to the second power difference, controlling the range extender to generate power at the maximum power generation corresponding to the second driving section in the second driving section; in response to detecting that the first power difference is less than the second power difference, controlling the range extender to generate power at the sum of the demand power generation corresponding to the second driving section and the first power difference in the second driving section.

[0109] Detecting that the first power difference is greater than or equal to the second power difference means that the first driving section has less power generation, which cannot be compensated by more power generation in the second driving section. At this time, in order to fully utilize the power generation that can be generated more in the second driving section, the range extender is controlled to generate power at the maximum power generation corresponding to the second driving section in the second driving section.

[0110] Detecting that the first power difference is less than the second power difference means that the less power generation in the first driving section can be compensated by more power generation in the second driving section, and there is still a surplus of power generation when generating power at the maximum power generation. At this time, in order to ensure compensation and not to be excessive to reduce energy consumption, the range extender is controlled to generate power at the sum of the demand power generation corresponding to the second driving section and the first power difference in the second driving section.

[0111] The second aspect of the present application provides a control device 10 of a vehicle range extender. FIG. 7 is a structural schematic diagram of the control device 10 of the vehicle range extender provided in one or more embodiments of the present application. In combination with FIG. 7, the control device 10 of the vehicle range extender comprises an acquisition module 11 and a control module 12. The acquisition module 11 is configured to acquire a navigation route of the vehicle. The navigation route comprises a plurality of driving sections. The acquisition module 11 is further configured to acquire road condition information of the navigation route, and acquire a required power generation amount of the range extender corresponding to different driving sections based on the road condition information. The road condition information comprises road information and environmental information. The acquisition module 11 is further configured to acquire a preset NVH standard of the driving section based on the road condition information, and acquire a maximum power generation amount of the range extender under the driving section based on the preset NVH standard. The road condition information and the preset NVH standard have a preset corresponding relationship. The control module 12 is configured to, when detecting a first driving section in which the required power generation amount is greater than the maximum power generation amount, and a second driving section in which the required power generation amount is less than the maximum power generation amount, control the range extender to generate a power generation amount greater than the required power generation amount in the second driving section. The second driving section is before the first driving section.

[0112] The third aspect of the present application provides an electronic device, comprising: one or more processors and one or more memories; the memory is configured to store a computer program, and the computer program is executed by the one or more processors to implement the control method of the vehicle range extender in any of the above embodiments.

[0113] FIG. 8 is a structural schematic diagram of an electronic device 500 provided in one or more embodiments of the present application.

[0114] In some embodiments, the electronic device 500 comprises a central processing unit (CPU) 501 and a read-only memory (ROM) 502. The central processing unit 501 is a processor, and the read-only memory (ROM) 502 is a memory. The central processing unit 501 can perform various appropriate actions and processes according to programs stored in the read-only memory (ROM) 502 or programs loaded from the storage portion 508 to the random access memory (RAM) 503, such as performing the methods in the above embodiments. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, the ROM 502, and the RAM 503 are connected to each other through a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0115] The following components are connected to the I / O interface 505: an input section 506 including input devices such as a keyboard and mouse; an output section 507 including output devices such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and a speaker; a storage section 508 including a hard disk; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, and the like. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as necessary. A removable recording medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, and the like is attached to the drive 510 as necessary, so that a computer program read therefrom is installed into the storage section 508 as necessary.

[0116] In particular, according to embodiments of the present application, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present application include a computer program product comprising a computer program carried on a computer readable medium, the computer program containing computer programs for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via the communication section 509, and / or installed from the removable recording medium 511. When the computer program is executed by the central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0117] The fourth aspect of the present application provides a computer readable storage medium 40. FIG. 9 is a structural schematic diagram of a computer readable storage medium 40 provided in one or more embodiments of the present application.

[0118] The computer readable storage medium 40 stores a computer program 41, which, when executed by one or more processors, implements the control method of the vehicle range extender as in any of the above embodiments.

[0119] It should be noted that the computer readable medium 40 shown in the embodiments of the present application can be a computer readable signal medium or a computer readable storage medium or any combination thereof. The computer readable storage medium can be, for example, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or any suitable combination thereof. More specific examples of the computer readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In the present application, the computer readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus or device. In the present application, the computer readable signal medium can include a data signal carried in a baseband or as part of a carrier wave, in which the computer readable computer program is carried. Such a propagated data signal can take any of a variety of forms, including but not limited to electro-magnetic, optical, or any suitable combination thereof. The computer readable signal medium can also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate or transport a program for use by or in connection with an instruction execution system, apparatus or device. The computer program contained in the computer readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, or any suitable combination thereof.

[0120] To sum up, based on the vehicle range extender control method, device, electronic equipment and computer readable storage medium provided in the application, the method comprises: acquiring a navigation route of a vehicle; wherein the navigation route comprises a plurality of driving sections; acquiring road condition information of the navigation route, and acquiring a demand power generation amount of the range extender corresponding to different driving sections based on the road condition information; wherein the road condition information comprises road information and environmental information; acquiring a preset NVH standard of the driving section based on the road condition information, and acquiring a maximum power generation amount of the range extender under the driving section based on the preset NVH standard; wherein the road condition information and the preset NVH standard have a preset corresponding relationship; detecting a first driving section in which the demand power generation amount is greater than the maximum power generation amount, and a second driving section in which the demand power generation amount is less than the maximum power generation amount, and then controlling the range extender to generate a power generation amount greater than the corresponding demand power generation amount in the second driving section; wherein the second driving section is before the first driving section. Therefore, when the range extender generates the demand power in the first driving section and the NVH performance of the vehicle is poor, the range extender is controlled to generate more power in the second driving section before the first driving section, which can reduce the power generation pressure of the first driving section, and thus can ensure that the vehicle works with a small power generation power in the first driving section, so as to improve the NVH performance of the vehicle and improve the user experience.

[0121] The above is only a preferred exemplary embodiment of the application, and is not intended to limit the implementation of the application. Those skilled in the art can easily make corresponding modifications or changes according to the main idea and spirit of the application, and the protection scope of the application should be subject to the protection scope required by the claims.

Claims

1. A control method of a vehicle range extender, characterized by, Comprising: obtaining a navigation route of a vehicle; wherein the navigation route comprises a plurality of driving segments; obtaining road condition information of the navigation route, and obtaining a required power generation of a range extender corresponding to different driving segments based on the road condition information; wherein the road condition information comprises road information and environmental information; obtaining a preset NVH standard of the driving segments based on the road condition information, and obtaining a maximum power generation of the range extender under the driving segments based on the preset NVH standard; wherein the road condition information and the preset NVH standard have a preset corresponding relationship; and in response to detecting a first driving segment in which the required power generation is greater than the maximum power generation, and a second driving segment in which the required power generation is less than the maximum power generation, controlling the range extender to generate a power greater than the required power generation in the second driving segment; wherein the second driving segment is before the first driving segment.

2. The control method of the vehicle range extender according to claim 1, characterized by, The step of obtaining a required power generation of a range extender corresponding to different driving segments based on road condition information comprises: based on the road condition information, obtaining a power variation of driving power of the vehicle in the driving segment compared to preset basic road condition information; and based on the power variation, obtaining a power generation variation corresponding to the driving segment, and taking a sum of the power generation variation and a preset basic power generation as the required power generation of the range extender corresponding to the driving segment; wherein the preset basic power generation is a required power generation of the range extender in the driving segment based on the preset basic road condition information.

3. The control method of the vehicle range extender according to claim 2, characterized by, The road condition information comprises an actual slope of the driving segment; and the preset basic power generation is a required power generation of the range extender in the driving segment based on a preset basic slope. The step of obtaining a power variation of driving power of the vehicle in the driving segment compared to preset basic road condition information based on the road condition information comprises: based on the actual slope, obtaining a power variation of driving power of the vehicle in the driving segment compared to a preset basic slope.

4. The control method of the vehicle range extender according to claim 3, characterized by, The preset basic power generation is a required power generation of the range extender in the driving segment based on a preset basic slope and a preset basic load. The step of obtaining a power variation of driving power of the vehicle in the driving segment compared to preset basic road condition information based on the road condition information comprises: based on the actual slope and an actual load of the vehicle, obtaining a power variation of driving power of the vehicle in the driving segment compared to the preset basic slope and the preset basic load.

5. The control method of the vehicle range extender according to claim 2, characterized by, The road condition information comprises a predicted wind speed and a predicted wind direction of the driving segment; and the preset basic power generation is a required power generation of the range extender in the driving segment based on a preset basic wind speed and a preset basic wind direction. The step of obtaining a power variation of driving power of the vehicle in the driving segment compared to preset basic road condition information based on the road condition information comprises: Based on the predicted wind speed and the predicted wind direction, a power variation of driving power of the vehicle in the driving section compared to a preset basic wind speed and a preset basic wind direction is obtained.

6. The control method of the vehicle range extender according to claim 1, characterized by, The step of obtaining the preset NVH standard of the driving section based on the road condition information comprises: In response to obtaining that the driving section is a slope based on the road condition information, a slope type of the driving section and a slope degree of the slope are obtained based on the road condition information; wherein the slope type comprises an uphill and a downhill; and The preset NVH standard of the driving section is obtained based on the slope type and the slope degree of the slope.

7. The control method of the vehicle range extender according to claim 1, characterized by, The step of obtaining the preset NVH standard of the driving section based on the road condition information comprises: The driving section with congestion in the navigation route is determined based on the road condition information; and A preset NVH standard corresponding to the driving section with congestion is obtained; wherein the maximum power generation of the range extender under the preset NVH standard corresponding to the driving section with congestion is less than a preset power generation.

8. The control method of the vehicle range extender according to claim 1, characterized by, The step of obtaining the preset NVH standard of the driving section based on the road condition information comprises: In response to obtaining that the environment of the driving section is a rainfall environment based on the road condition information, a rainfall size degree of the driving section is obtained; and The preset NVH standard of the driving section is obtained based on the rainfall size degree; wherein the maximum power generation of the range extender corresponding to the preset NVH standard corresponding to a larger rainfall size degree is larger.

9. The control method of the vehicle range extender according to claim 1, characterized by, In response to detecting a first driving section with the demand power generation greater than the maximum power generation and a second driving section with the demand power generation less than the maximum power generation, the step of controlling the range extender to generate power greater than the corresponding demand power generation in the second driving section comprises: In response to detecting a first driving section with the demand power generation greater than the maximum power generation and a second driving section with the demand power generation less than the maximum power generation, a first power difference between the demand power generation and the maximum power generation of the first driving section is obtained, and a second power difference between the maximum power generation and the demand power generation of the second driving section is obtained; In response to detecting that the first power difference is greater than or equal to the second power difference, the range extender is controlled to generate power at the maximum power generation corresponding to the second driving section; in response to detecting that the first power difference is less than the second power difference, the range extender is controlled to generate power at the sum of the demand power generation corresponding to the second driving section and the first power difference.

10. A control device of a vehicle range extender, characterized by Comprise: An acquisition module is configured to acquire a navigation route of a vehicle, wherein the navigation route comprises a plurality of driving sections; acquire road condition information of the navigation route, and acquire a required power generation amount of a range extender corresponding to different driving sections based on the road condition information; wherein the road condition information comprises road information and environmental information; acquire a preset NVH standard of the driving section based on the road condition information, and acquire a maximum power generation amount of the range extender under the driving section based on the preset NVH standard; wherein the road condition information and the preset NVH standard have a preset corresponding relationship; and A control module is configured to detect a first driving section in which the required power generation amount is greater than the maximum power generation amount, and a second driving section in which the required power generation amount is less than the maximum power generation amount, and control the power generation amount of the range extender in the second driving section to be greater than the required power generation amount corresponding to the second driving section; wherein the second driving section is before the first driving section.

11. An electronic device, comprising: The vehicle range extender comprises: one or more processors and one or more memories; The one or more memories are configured to store a computer program, and the computer program is executed by the one or more processors to implement the control method of the vehicle range extender according to any one of claims 1-9.

12. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and the computer program is executed by one or more processors to implement the control method of the vehicle range extender according to any one of claims 1-9.

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