Vehicle range extender control method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of vehicle range extending control, and discloses a control method and device for a vehicle range extender, electronic equipment and a storage medium, and the method comprises the steps: obtaining the segmented road condition of each segment of a vehicle in a remaining driving road section, and obtaining the required electricity consumption of the vehicle in the remaining driving road section according to the segmented road condition; determining the target generating capacity of the vehicle in the remaining driving road sections based on the current remaining power and the required power consumption of the vehicle; planning the initial sub-generating capacity of all the segments based on the segment road condition, and adjusting the initial sub-generating capacity to obtain a target sub-generating capacity; wherein the sum of all the target sub-generating capacity is the target generating capacity; and a range extender of the vehicle is controlled to generate power in the segments of the remaining driving road section according to the target sub-generating capacity. Therefore, after the total generating capacity of the remaining driving road sections is determined, the segmented generating capacity is planned through the segmented road conditions, so that the segmented generating capacity fits the segmented road conditions, and the user experience can be improved.

Description

Technical Field

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

[0002] In extended-range new energy vehicles, if the battery pack charge level is lower than a certain value, the range extender will generate electricity to power the vehicle's drive and / or battery pack, thereby ensuring the vehicle's normal driving and maintaining the battery pack charge at an appropriate level.

[0003] At present, the range extender generally generates electricity according to the specific working status of the current vehicle, and generally does not plan the power generation of each remaining driving section. It cannot meet some specific needs of different sections for power generation, and the user experience is poor. Summary of the invention

[0004] In view of the above problems, the present application provides a control method, device, electronic device and storage medium for a vehicle range extender. After determining the total power generation of the remaining driving section, the power generation of each section is planned according to the segmented road conditions, so that the power generation of each section fits the segmented road conditions, thereby improving the user experience.

[0005] In a first aspect, the present application provides a control method for a vehicle range extender, comprising: obtaining segmented road conditions of each segment of the vehicle in the remaining driving section, and obtaining the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; determining a target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; planning initial sub-power generation of all segments based on the segmented road conditions to adjust the initial sub-power generation to obtain a target sub-power generation; wherein the initial sub-power generation is obtained based on the current remaining power and the required power consumption of the segment, and the sum of all target sub-power generation is the target power generation; and controlling the vehicle's range extender to generate power at the target sub-power generation in the segments of the remaining driving section.

[0006] In some specific embodiments, the step of determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption includes: determining the target remaining power after the vehicle completes the remaining driving section based on the current remaining power of the vehicle and the starting power of the range extender; determining the target power generation of the range extender in the remaining driving section based on the required power consumption, the current remaining power and the target remaining power.

[0007] In some specific embodiments, the step of determining the target remaining power of the vehicle after the vehicle completes the remaining driving section based on the current remaining power of the vehicle and the starting power of the range extender includes: if the current remaining power of the vehicle is greater than or equal to the starting power of the range extender, the starting power of the range extender is used as the target remaining power of the vehicle after the vehicle completes the remaining driving section; if the current remaining power is less than the starting power of the range extender, a preset power is used as the target remaining power; wherein the preset power is greater than or equal to the current remaining power and less than the starting power of the range extender.

[0008] In some specific embodiments, if the current remaining power is less than the starting power of the range extender, the step of using the preset power as the target remaining power includes: if the current remaining power is less than the starting power of the range extender, obtaining the length of the remaining driving section; if the length of the remaining driving section is greater than or equal to the preset length, using the first preset power as the target remaining power; if the length of the remaining driving section is less than the preset length, using the second preset power as the target remaining power; wherein the first preset power is greater than the second preset power.

[0009] In some specific embodiments, before the step of determining the target remaining power of the vehicle after the vehicle completes the remaining driving section based on the current remaining power of the vehicle and the starting power of the range extender, it also includes: obtaining the vehicle mode of the vehicle in the remaining driving section; determining the corresponding starting power of the range extender based on the vehicle mode; wherein there is a preset corresponding relationship between the vehicle mode and the starting power of the range extender.

[0010] In some specific embodiments, the initial sub-power generation of all the segments is planned based on the segmented road conditions to adjust the initial sub-power generation to obtain the target sub-power generation, including: determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the segmented road conditions of the segments; wherein different segmented road conditions correspond to different preset oil-to-electricity conversion rate standards and different preset NVH performance standards; and planning the initial sub-power generation of all segments according to the preset oil-to-electricity conversion rate standard, preset NVH performance standard corresponding to the segment and the universal characteristics of the range extender to adjust the initial sub-power generation to obtain the target sub-power generation.

[0011] In some specific embodiments, the steps of determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on segmented road conditions include: obtaining a vehicle mode and a driving mode corresponding to the vehicle in the segment; determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard according to the vehicle mode, the driving mode and the segmented road conditions; wherein the vehicle mode, the driving mode and the segmented road conditions constitute a first combination, the preset oil-to-electricity conversion rate standard and the preset NVH performance standard constitute a second combination, and different first combinations correspond to different second combinations.

[0012] In some specific embodiments, the initial sub-power generation of all segments is planned according to the preset oil-to-electricity conversion rate standard, the preset NVH performance standard and the universal characteristics of the range extender corresponding to the segments, so as to adjust the initial sub-power generation to obtain the target sub-power generation, including: determining the target power generation range according to the preset oil-to-electricity conversion rate standard and the preset NVH performance standard; if the initial sub-power generation corresponding to at least some of the segments is outside the target power generation range, then increasing or decreasing the initial sub-power generation between the segments to obtain the target sub-power generation corresponding to the segments, so that the initial sub-power generation after the increase or decrease adjustment is within the target power generation range.

[0013] In some specific embodiments, the segmented road conditions include uphill road conditions and congested road conditions, and the sections with uphill road conditions or congested road conditions are preset sections; if the initial sub-power generation corresponding to at least some of the sections is outside the target power generation range, the initial sub-power generation between the sections is increased or decreased to obtain the target sub-power generation corresponding to the sections, including: if the standard power generation corresponding to the preset section is higher than the highest power generation in the target power generation range, the standard power generation corresponding to the preset section is reduced to obtain the corresponding target sub-power generation, and the reduced power generation is added to the section before the preset section.

[0014] According to a second aspect of the present application, there is provided a control device for a vehicle range extender, comprising: an acquisition module for acquiring the segmented road conditions of each segment of the vehicle in the remaining driving section, and acquiring the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; a planning module for planning the target sub-power generation of all segments based on the segmented road conditions, and making the sum of all target sub-power generation the target power generation; and a control module for controlling the vehicle's range extender to generate power at the target sub-power generation in the segments of the remaining driving section.

[0015] 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 vehicle range extender control methods is implemented.

[0016] 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 control method for a vehicle range extender as described above is implemented.

[0017] The present application has at least the following beneficial technical effects: Based on the control method, device, electronic device and storage medium of the vehicle range extender provided by the present application, the method includes: obtaining the segmented road conditions of each segment of the vehicle in the remaining driving section, and obtaining the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; planning the initial sub-power generation of all segments based on the segmented road conditions to adjust the initial sub-power generation to obtain the target sub-power generation; wherein the initial sub-power generation is obtained based on the current remaining power and the required power consumption of the segment, and the sum of all target sub-power generation is the target power generation; controlling the vehicle's range extender to generate power with the target sub-power generation in the segment of the remaining driving section. Therefore, after determining the total power generation of the remaining driving section, the power generation of the segment is planned according to the segmented road conditions, so that the power generation of the segment fits the road conditions of the segment, which can improve the user experience.

[0018] 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

[0019] 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:

[0020] Figure 1 It is a flow chart of an embodiment of a control method for a vehicle range extender provided by the present application;

[0021] Figure 2 is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0022] Figure 3 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0023] Figure 4 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0024] Figure 5 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0025] Figure 6 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0026] Figure 7 This is a schematic diagram of the universal characteristics of the range extender;

[0027] Figure 8 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0028] Fig. 9 It is a flow chart of another embodiment of the control method of the vehicle range extender provided by the present application;

[0029] Fig.10 It is a structural schematic diagram of an embodiment of a control device for a vehicle range extender provided by the present application;

[0030] Fig.11 It is a schematic diagram of the structural framework of an embodiment of the electronic device provided by the present application;

[0031] Fig.12 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

[0032] 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.

[0033] 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.

[0034] The first aspect of the present application provides a control method for a vehicle range extender. Figure 1 1 is a flow chart of an embodiment of a control method for a vehicle range extender provided by the present application. Figure 1 , the method comprises the following steps:

[0035] S101: Obtaining the segmented road conditions of each segment of the remaining driving section of the vehicle, and obtaining the required power consumption of the vehicle in the remaining driving section; wherein two adjacent segments have different segmented road conditions.

[0036] The vehicle can determine the remaining driving section of the vehicle through navigation information, and obtain the road condition information of the remaining driving section through navigation information, and then obtain the segmented road condition of each segment. The type of segmented road condition can be preset, and after obtaining the road condition information, the segmented road condition of each segment can be determined by comparing it with the preset segmented road condition.

[0037] In some application scenarios, segmented road conditions may include highway conditions, suburban conditions, urban conditions, traffic jam conditions, uphill conditions, and downhill conditions. When the average speed of a segment is higher than 80 kph, it is considered as a highway condition; when the average speed is 50-80 kph, it is considered as a suburban condition; when the average speed is 30-50 kph, it is considered as an urban condition; when the speed is below 30 kph, it is considered as a traffic jam; when there is an uphill condition, it is an uphill condition; when there is a downhill condition, it is a downhill condition. When a vehicle is traveling under different road conditions, even if it travels the same distance, the power consumption of the vehicle may be different.

[0038] It should be understood that among the multiple segments of the remaining driving section, only the segment road conditions of two adjacent segments are different, and there may be a situation where multiple segments have the same road condition. For example, the remaining driving section has four segments, and the road conditions are suburban road conditions, urban road conditions, traffic jam road conditions and suburban road conditions. In this case, the road conditions of two adjacent segments are different, but the road condition of the first segment is the same as the road condition of the fourth segment.

[0039] This embodiment also obtains the required power consumption of the vehicle in the remaining driving section, and the required power consumption can be obtained in a manner known in the prior art. For example, the required power consumption of each section can be obtained by using information such as the driving distance and driving time of the section, and the required power consumption of all sections is added together to obtain the required power consumption of the remaining driving section.

[0040] S102: Determine the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption.

[0041] The current remaining power of the vehicle is the current remaining power of the vehicle's battery pack. Based on the current remaining power of the vehicle and the required power consumption, the remaining power of the battery pack after the vehicle completes the remaining driving section without power generation can be obtained. At this time, the target power generation of the vehicle in the remaining driving section can be further obtained based on the vehicle's power conservation needs.

[0042] S103: Plan the initial sub-generation capacity of all segments based on the segmented road conditions to adjust the initial sub-generation capacity to obtain the target sub-generation capacity; wherein the initial sub-generation capacity is obtained based on the current remaining power and the required power consumption of the segment, and the sum of all target sub-generation capacities is the target power generation capacity.

[0043] Specifically, after obtaining the required power consumption of each segment, based on the current remaining power, it is possible to determine whether the range extender is started (when the current remaining power reaches the range extender start power, the range extender will start) and when it will start, and then obtain the initial sub-power generation of each segment. It should be understood that the initial sub-power generation here does not take into account road condition information.

[0044] After obtaining the initial sub-generation capacity of all segments, this embodiment further plans the initial sub-generation capacity based on the segmented road conditions, and the effect of the planning is to adjust the initial sub-generation capacity to obtain the target sub-generation capacity. The initial sub-generation capacity can be adjusted to adjust the initial sub-generation capacity of some segments (in this case, the initial sub-generation capacity that has not changed is directly used as the target sub-generation capacity), or to adjust all the initial sub-generation capacities, which is not specifically limited here. One of the requirements for the adjustment is that the sum of all target sub-generation capacities is the target generation capacity.

[0045] It should be understood that since the segmented road conditions will affect the actual power consumption of the vehicle (generally inconsistent with the predicted power demand), the target sub-power generation obtained by adjusting the initial sub-power generation according to the segmented road conditions is more in line with the actual power demand of the vehicle. In addition, when the vehicle is in different segmented road conditions, the impact of the range extender's power generation on the user is different. Therefore, in different segmented road conditions, the user may expect the range extender to have different working states (for example, generating power at high power or low power), and different working states will affect the power generation of the range extender. Therefore, the target sub-power generation obtained can better meet the user's needs for different working states of the range extender.

[0046] S104: Controlling the range extender of the vehicle to generate electricity at the target sub-power generation in the segments of the remaining driving section.

[0047] After planning the target sub-power generation for each segment, when the vehicle is traveling on the remaining driving section, the range extender can be controlled to generate power equal to the corresponding target sub-power generation in each segment, thereby improving user experience and power generation efficiency.

[0048] In summary, after determining the total power generation of the remaining driving sections, this embodiment plans the power generation of each section according to the road conditions of each section, so that the power generation of each section fits the road conditions of each section, which can improve the user experience.

[0049] Figure 2It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0050] Combination Figure 2 In some specific embodiments, the step of determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption, that is, the above-mentioned step S102, includes:

[0051] S201: Determine a target remaining power after the vehicle travels the remaining driving section based on the current remaining power of the vehicle and the starting power of the range extender.

[0052] The range extender startup power is the power of the battery pack corresponding to the start of power generation of the range extender, that is, when the power of the battery pack is lower than the range extender startup power, the range extender will work to generate power. The range extender startup power is preset, which can be a fixed power value, or it can be changed according to the specific working state of the vehicle, and no specific restrictions are made here.

[0053] It should be understood that the current remaining power may be lower than the range extender startup power, or it may be higher than the range extender startup power. Among them, the range extender startup power can, to a certain extent, reflect the final remaining power required by the user, that is, the target remaining power. For example, when the range extender startup power is higher, the target remaining power will generally be higher. The relationship between the current remaining power and the range extender startup power can also reflect the target remaining power to a certain extent. For example, when the current remaining power is higher than the range extender startup power, the target remaining power will generally be higher than the range extender startup power.

[0054] S202: Determine a target power generation amount of the range extender in the remaining driving section according to the required power consumption, the current remaining power and the target remaining power.

[0055] Among them, after knowing the required power consumption, the current remaining power and the target remaining power, the target power generation can be directly obtained.

[0056] Therefore, this embodiment defines that the target remaining power is obtained based on the starting power of the range extender, so that the setting of the target remaining power is more in line with the actual application scenario and the specific parameter setting of the range extender.

[0057] Figure 3 It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0058] Combination Figure 3 In some specific embodiments, the step of determining the target remaining power of the vehicle after the vehicle has traveled the remaining driving section according to the current remaining power of the vehicle and the starting power of the range extender, i.e., the above-mentioned step S201, includes:

[0059] S301: If the current remaining power of the vehicle is greater than or equal to the starting power of the range extender, the starting power of the range extender is used as the target remaining power after the vehicle completes the remaining driving section.

[0060] If the current remaining power is greater than or equal to the range extender start power, it means that the current remaining power is higher than the range extender start power. At this time, in order to make the vehicle have better power conservation performance and minimize the fuel consumption of power generation, the range extender start power is used as the target remaining power.

[0061] S302: If the current remaining power is less than the range extender startup power, a preset power is used as the target remaining power; wherein the preset power is greater than or equal to the current remaining power and less than the range extender startup power.

[0062] It should be understood that the current remaining power is less than the range extender startup power, which means that the current remaining power is lower than the range extender startup power. In order to prevent the battery pack from further losing power and affecting its working state, the preset power is set to be greater than the current remaining power. At the same time, in order to prevent the range extender from generating too much electricity and causing a lot of fuel consumption, the preset power is set to be less than the range extender startup power.

[0063] Therefore, in this embodiment, the target remaining power is set according to the specific size relationship between the current remaining power and the starting power of the range extender, which can prevent the battery pack from further power loss and reduce the fuel consumption of the range extender to achieve energy saving.

[0064] Of course, in other embodiments, the current remaining power may be directly used as the target remaining power, or the starting power of the range extender may be directly used as the target remaining power.

[0065] Figure 4 It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0066] Combination Figure 4 In some specific embodiments, if the current remaining power is less than the starting power of the range extender, the step of using the preset power as the target remaining power, i.e., the above-mentioned step S302, includes:

[0067] S401: If the current remaining power is less than the starting power of the range extender, the length of the remaining driving section is obtained.

[0068] This embodiment imposes specific restrictions on the method of determining the preset power, that is, the preset power is determined according to the length of the remaining driving section.

[0069] S402: If the length of the remaining driving section is greater than or equal to the preset length, the first preset power is used as the target remaining power; if the length of the remaining driving section is less than the preset length, the second preset power is used as the target remaining power; wherein the first preset power is greater than the second preset power.

[0070] At this time, if the length of the remaining driving section is greater than or equal to the preset length, it means that the remaining driving section is long, and the preset power is set to a larger first preset power. If the length of the remaining driving section is less than the preset length, it means that the remaining driving section is short, and the preset power is set to a smaller second preset power.

[0071] It should be understood that when the remaining driving section is long, in order to ensure that the vehicle has a good power state during driving to maintain a good working state, and to ensure that the vehicle has a good power state at a farther place after driving, the preset power is set to a larger value. When the remaining driving section is short, even if the battery is low during driving, it will not seriously affect the vehicle's working state and user experience. After driving, it is generally in a nearby place, and even if the battery is low, it can be replenished in a familiar place, so the preset power is set to a smaller value.

[0072] Therefore, this embodiment determines the preset power level according to the remaining driving section, which meets the needs of actual driving scenarios and can improve the user experience.

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

[0074] Combination Figure 5 In some specific embodiments, before the step of determining the target remaining power of the vehicle after the vehicle has traveled the remaining driving section according to the current remaining power of the vehicle and the starting power of the range extender, that is, before the above step S201, the method further includes:

[0075] S501: Obtain the vehicle mode of the vehicle in the remaining driving section.

[0076] Among them, the vehicle mode may include a forced EV mode, a pure electric priority mode, an automatic mode, a fuel priority mode, etc., and no specific restrictions are made here.

[0077] S502: Determine the corresponding range extender startup power according to the vehicle mode; wherein there is a preset corresponding relationship between the vehicle mode and the range extender startup power.

[0078] Among them, the correspondence between the vehicle mode and the range extender start power can be preset. Combined with the above content, the forced EV mode, pure electric priority mode, automatic mode, and fuel priority mode can correspond to 10%, 20%, 30%, and 70% of the range extender start power respectively.

[0079] After the vehicle mode is acquired, the corresponding range extender startup power can be determined according to the corresponding relationship. For example, after determining that the vehicle mode is the pure electric priority mode, the range extender startup power can be determined to be 20% according to the corresponding relationship.

[0080] Figure 6 It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0081] Combination Figure 6 In some specific embodiments, the initial sub-generation capacity of all the segments is planned based on the segment road conditions to adjust the initial sub-generation capacity to obtain the target sub-generation capacity, that is, the above step S103, including:

[0082] S601: Determine a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the segmented road conditions; wherein different segmented road conditions correspond to different preset oil-to-electricity conversion rate standards and different preset NVH performance standards.

[0083] It should be understood that the requirements for the vehicle's oil-to-electricity conversion rate and NVH performance under different segmented road conditions are generally different, so as to meet the specific requirements for the working state of the range extender under specific segmented road conditions.

[0084] In this embodiment, a correspondence between segmented road conditions and preset oil-to-electricity conversion rate standards and preset NVH standards is established, so that different segmented road sections correspond to different combinations of preset oil-to-electricity conversion rate standards and preset NVH performance standards.

[0085] S602: According to the preset oil-to-electricity conversion rate standard, the preset NVH performance standard and the universal characteristics of the range extender corresponding to the segment, the initial sub-generation capacity of all segments is planned to adjust the initial sub-generation capacity to obtain the target sub-generation capacity.

[0086] After determining the preset oil-to-electricity conversion rate standard and the preset NVH performance standard corresponding to the segment, the corresponding power generation point range can be further determined based on the universal characteristics of the range extender, and then the initial sub-power generation of all segments can be planned according to the power generation point range, so as to adjust the initial sub-power generation to obtain the target sub-power generation.

[0087] Figure 7 This is a schematic diagram of the universal characteristics of the range extender.

[0088] Combination Figure 7 , Figure 7The horizontal axis represents the speed of the engine of the range extender, and the vertical axis represents the torque of the engine. Since the product of the speed and the torque can obtain the power of the engine, the coordinate point determined by the horizontal and vertical axes is the power point of the engine, that is, the power generation point of the range extender.

[0089] in, Figure 7 The multiple closed curves 11 in the figure are the oil-to-electricity conversion rate curves of the range extender. The oil-to-electricity conversion rate corresponding to the power points within the same closed curve 11 is greater than a certain value, and the oil-to-electricity conversion rate is higher as the power point is closer to the center of the closed curve 11. Curve 12 is the NVH curve of the range extender. The NVH performance corresponding to the power points between the two curves 12 is within a certain range.

[0090] At this time, the specific preset oil-to-electricity conversion rate standard corresponds to a power point area, such as the power point area corresponding to the minimum closed curve 11. The specific preset NVH performance standard also corresponds to a power point area, such as the power point area formed by the two curves 12 of 75 and 80. At this time, the intersection area of ​​the two power point areas is the power point area that meets the preset oil-to-electricity conversion rate standard and the preset NVH performance standard. It is necessary to determine the power point in this area to plan the target sub-power generation. At this time, when generating electricity in segments with the target sub-power generation, the preset oil-to-electricity conversion rate standard and the preset NVH performance standard corresponding to the road conditions are generally met.

[0091] Figure 8 It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0092] Combination Figure 8 In some specific embodiments, the step of determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the segmented road conditions includes:

[0093] S701: Obtain the vehicle mode and driving mode corresponding to the segment.

[0094] It should be understood that different vehicle modes and driving modes may have different requirements for the vehicle's oil-to-electricity conversion rate standard and NVH performance standard. Therefore, this embodiment further introduces the influencing factors of the vehicle's vehicle mode and driving mode.

[0095] S702: Determine a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the vehicle mode, driving mode and segmented road conditions; wherein the vehicle mode, driving mode and segmented road conditions constitute a first combination, the preset oil-to-electricity conversion rate standard and the preset NVH performance standard constitute a second combination, and different first combinations correspond to different second combinations.

[0096] At this time, the vehicle mode, driving mode and segmented road conditions constitute a first combination, the preset oil-to-electricity conversion rate standard and the preset NVH performance standard constitute a second combination, and different first combinations have a preset corresponding relationship with different second combinations.

[0097] Among them, for driving modes, the driving modes may include comfort mode, energy-saving mode, and sports mode, etc., which are not specifically limited here. In different driving modes, the performance requirements for the vehicle are generally different. For example, for the requirements of NVH performance, the priorities of different modes are comfort>energy-saving mode>sports, that is, the comfort mode has higher requirements for NVH performance, so different preset NVH performance standards can be set for different driving modes. For example, for the requirements of oil-to-electricity conversion rate, different modes also have different priorities, energy-saving mode>comfort>sports, that is, the energy-saving mode has the highest requirements for oil-to-electricity conversion rate, so different preset oil-to-electricity conversion rate standards can be set for different driving modes.

[0098] Fig. 9 It is a flow chart of another embodiment of the control method of the vehicle range extender provided in the present application.

[0099] Combination Fig. 9 In some specific embodiments, the initial sub-generation capacity of all segments is planned according to the preset oil-to-electricity conversion rate standard, the preset NVH performance standard and the universal characteristics of the range extender corresponding to the segment, so as to adjust the initial sub-generation capacity to obtain the target sub-generation capacity, that is, the above-mentioned step S602, including:

[0100] S801: Determine a target power generation range according to a preset oil-to-electricity conversion rate standard and a preset NVH performance standard.

[0101] In combination with the above content, according to the preset oil-to-electricity conversion rate standard and the preset NVH performance standard, a power point range can be determined, and the power point range corresponds to a power range, and the power range corresponds to a target power generation range.

[0102] S802: If the initial power generation corresponding to at least some of the segments is outside the target power generation range, the initial sub-power generation between the segments is increased or decreased to obtain the target sub-power generation corresponding to the segments, so that the initial sub-power generation after the increase or decrease adjustment is within the target power generation range.

[0103] It should be understood that the vehicle will meet the preset oil-to-electricity conversion rate standard and the preset NVH standard only when the initial sub-generation capacity of the segment is within the target generation capacity range. Therefore, if the initial sub-generation capacity corresponding to at least some of the segments is not within the target generation capacity range, it means that if the initial sub-generation capacity is used to generate electricity in at least some of the segments, it is very likely that the corresponding preset NVH performance standard and the preset oil-to-electricity conversion rate standard will not be met.

[0104] If the initial sub-generation amount corresponding to at least some of the segments is outside the target generation amount range, it means that the initial sub-generation amount corresponding to this part of the segments does not meet the preset NVH performance standard and the preset oil-to-electricity conversion rate standard. In order to make the generation amount of this part of the segments meet the preset NVH performance standard and the preset oil-to-electricity conversion rate standard, this embodiment increases or decreases the initial sub-generation amount between the segments, so that the initial sub-generation amount of the segments whose initial sub-generation amount is not within the target generation amount range is within the target generation amount range after adjustment.

[0105] Among them, for the increase and decrease of the initial sub-generation capacity between segments, the initial sub-generation capacity between any segments can be increased or decreased. At this time, any initial sub-generation capacity can be increased or decreased, and the increase or decrease can be made up in other segments. For example, after increasing the initial sub-generation capacity of a segment, the corresponding initial sub-generation capacity must be reduced in other segments to achieve a balance in total power generation. The purpose of the allocation is to try to make the initial sub-generation capacity of all segments within the target power generation range. If there are still a few segments whose initial sub-generation capacity is not within the target power generation range after the allocation, this is also acceptable, at least the adjustment of the initial sub-generation capacity of some segments is achieved.

[0106] In combination with the above embodiments, in some specific embodiments, the segmented road conditions include uphill road conditions and congested road conditions, and the road sections of uphill road conditions or congested road conditions are preset sections. Among them, only when the slope and length meet certain requirements will it be considered as uphill road conditions, and the congested road sections also need to meet specific parameters.

[0107] If the initial sub-generation amounts corresponding to at least some of the segments are outside the target generation amount range, the step of increasing or decreasing the initial sub-generation amounts between the segments to obtain the target sub-generation amounts corresponding to the segments, i.e., the above-mentioned step S802, includes:

[0108] If the standard power generation corresponding to the preset section is higher than the highest power generation within the target power generation range, the standard power generation corresponding to the preset section is reduced to obtain the corresponding target sub-power generation, and the reduced power generation is added to the section before the preset section.

[0109] It should be understood that if the segment is a preset road segment and the standard power generation is higher than the highest power generation in the target power generation range, it means that the power generation of the segment corresponding to the uphill road condition or congested road condition is too high. If the standard power generation is used at this time, the oil-to-electricity conversion rate is low or the user's NVH experience is very poor due to the excessive power generation. In particular, the NVH experience will directly bring a poor riding experience to the user.

[0110] Based on this, this embodiment reduces the standard power generation of the preset section and adds it to the previous section to achieve increase and decrease allocation. On the one hand, the standard power generation of the preset section can be within the target power generation range, thereby meeting the better oil-to-electricity conversion performance and NVH performance. On the other hand, since the less electricity has been generated before, it can be guaranteed that there is sufficient electricity in the preset section, and even if the power generation is reduced, it will not affect the normal operation and performance of the vehicle.

[0111] A second aspect of the present application provides a control device 10 for a vehicle range extender, Fig.10 1 is a schematic structural diagram of an embodiment of a control device 10 for a vehicle range extender provided in the present application.

[0112] Combination Figure 1 , the control device 10 of the vehicle range extender includes an acquisition module 11, a planning module 12 and a control module 13. Among them, the acquisition module 11 is used to obtain the segmented road conditions of each segment of the vehicle in the remaining driving section, and obtain the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; based on the current remaining power of the vehicle and the required power consumption, the target power generation of the vehicle in the remaining driving section is determined. The planning module 13 plans the target sub-power generation of all segments based on the segmented road conditions, and makes the sum of all target sub-power generation the target power generation. The control module 13 controls the vehicle's range extender to generate electricity at the target sub-power generation in the segments of the remaining driving section.

[0113] 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 control method of the vehicle range extender in any of the above embodiments.

[0114] 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 control method for a vehicle range extender as in any of the above embodiments is implemented.

[0115] Fig.11 It is a schematic diagram of the structural framework of an embodiment of the electronic device 500 provided in the present application.

[0116] In some specific embodiments, the electronic device 500 includes a central processing unit (CPU) 501 and a read-only memory (ROM) 502, wherein the CPU 501 is a processor and the ROM 502 is a memory. The CPU 501 can perform various appropriate actions and processes according to the program stored in the ROM 502 or the program loaded from the storage part 508 to the random access memory (RAM) 503, such as executing the method in the above embodiment. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, the ROM 502 and the RAM 503 are connected to each other via a bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0117] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 510 as needed so that a computer program read therefrom is installed into the storage section 508 as needed.

[0118] In particular, according to an embodiment of the present application, the process described above with reference to the flowchart can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program includes a computer program for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network through a communication section 509, and / or installed from a removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0119] A fourth aspect of the present application provides a computer-readable storage medium 40, Fig.12It is a schematic diagram of the structural framework of an embodiment of the computer-readable storage medium 40 provided in the present application.

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

[0121] It should be noted that the computer-readable medium 40 shown in the embodiment of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a flash memory, an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it. In the present application, a computer-readable signal medium can include a data signal propagated in a baseband or as a part of a carrier wave, wherein a computer-readable computer program is carried. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate, or transmit programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0122] In summary, based on the control method, device, electronic device and storage medium of the vehicle range extender provided by the present application, the method includes: obtaining the segmented road conditions of each segment of the vehicle in the remaining driving section, and obtaining the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; planning the initial sub-power generation of all segments based on the segmented road conditions to adjust the initial sub-power generation to obtain the target sub-power generation; wherein the initial sub-power generation is obtained based on the current remaining power and the required power consumption of the segment, and the sum of all target sub-power generation is the target power generation; controlling the vehicle's range extender to generate power with the target sub-power generation in the segment of the remaining driving section. Therefore, after determining the total power generation of the remaining driving section, the power generation of the segment is planned according to the segmented road conditions, so that the power generation of the segment fits the road conditions of the segment, which can improve the user experience.

[0123] The above content is only a preferred exemplary embodiment of the present application and is not intended to limit the implementation scheme of the present application. A person skilled in the art can easily make corresponding changes or modifications based on the main concept and spirit of the present application. Therefore, the scope of protection of the present application shall be based on the scope of protection required by the claims.

Claims

1. A control method for a vehicle range extender, characterized in that: include: Obtaining the segmented road conditions of each segment of the remaining driving section of the vehicle, and obtaining the required power consumption of the vehicle in the remaining driving section; wherein two adjacent segments have different segmented road conditions; Determining a target power generation amount of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; Based on the segmented road conditions, the initial sub-generation amounts of all the segments are planned to adjust the initial sub-generation amounts to obtain the target sub-generation amounts; wherein the initial sub-generation amounts are obtained based on the current remaining power and the required power consumption of the segment, and the sum of all the target sub-generation amounts is the target power generation amount; The range extender of the vehicle is controlled to generate electricity with the target sub-power generation in the segment of the remaining driving section.

2. The control method of a vehicle range extender according to claim 1, characterized in that: The step of determining the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption includes: Determining a target remaining power of the vehicle after the vehicle has traveled the remaining driving section according to the current remaining power of the vehicle and the starting power of the range extender; The target power generation amount of the range extender in the remaining driving section is determined according to the required power consumption, the current remaining power and the target remaining power.

3. The control method of the vehicle range extender according to claim 2, characterized in that: The step of determining a target remaining power of the vehicle after the vehicle has traveled the remaining driving section according to the current remaining power of the vehicle and the starting power of the range extender comprises: If the current remaining power of the vehicle is greater than or equal to the starting power of the range extender, the starting power of the range extender is used as the target remaining power after the vehicle has traveled the remaining driving section; If the current remaining power is less than the range extender startup power, a preset power is used as the target remaining power; wherein the preset power is greater than or equal to the current remaining power and less than the range extender startup power.

4. The control method of the vehicle range extender according to claim 3, characterized in that: If the current remaining power is less than the range extender startup power, the step of using the preset power as the target remaining power includes: If the current remaining power is less than the starting power of the range extender, obtaining the length of the remaining driving section; If the length of the remaining driving section is greater than or equal to the preset length, the first preset power is used as the target remaining power; if the length of the remaining driving section is less than the preset length, the second preset power is used as the target remaining power; wherein the first preset power is greater than the second preset power.

5. The control method of a vehicle range extender according to claim 2, characterized in that: Before the step of determining the target remaining power of the vehicle after the vehicle has traveled the remaining driving section according to the current remaining power of the vehicle and the starting power of the range extender, the method further includes: Acquire a vehicle mode of the vehicle in the remaining driving section; The corresponding range extender startup power is determined according to the vehicle mode; wherein there is a preset corresponding relationship between the vehicle mode and the range extender startup power.

6. The control method of a vehicle range extender according to claim 1, characterized in that: The step of planning the initial sub-generation amounts of all the segments based on the segmented road conditions to adjust the initial sub-generation amounts to obtain target sub-generation amounts includes: Determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the segmented road conditions of the segments; wherein different segmented road conditions correspond to different preset oil-to-electricity conversion rate standards and different preset NVH performance standards; According to the preset oil-to-electricity conversion rate standard corresponding to the segment, the preset NVH performance standard and the universal characteristics of the range extender, the initial sub-power generation of all the segments is planned to adjust the initial sub-power generation to obtain the target sub-power generation.

7. The control method of a vehicle range extender according to claim 6, characterized in that: The step of determining a preset oil-to-electricity conversion rate standard and a preset NVH performance standard based on the segmented road conditions of the segmented road conditions comprises: Obtaining a vehicle mode and a driving mode corresponding to the vehicle in the segment; A preset oil-to-electricity conversion rate standard and a preset NVH performance standard are determined according to the vehicle mode, the driving mode and the segmented road condition; wherein the vehicle mode, the driving mode and the segmented road condition constitute a first combination, the preset oil-to-electricity conversion rate standard and the preset NVH performance standard constitute a second combination, and different first combinations correspond to different second combinations.

8. The control method of a vehicle range extender according to claim 6, characterized in that: The step of planning the initial sub-power generation of all the segments according to the preset oil-to-electricity conversion rate standard, the preset NVH performance standard and the universal characteristics of the range extender corresponding to the segments, so as to adjust the initial sub-power generation to obtain the target sub-power generation includes: Determining a target power generation range according to the preset oil-to-electricity conversion rate standard and the preset NVH performance standard; If the initial sub-power generation corresponding to at least some of the segments is outside the target power generation range, the initial sub-power generation between the segments is increased or decreased to obtain the target sub-power generation corresponding to the segments, so that the initial sub-power generation after increase or decrease is within the target power generation range.

9. The control method of a vehicle range extender according to claim 8, characterized in that: The segmented road conditions include uphill road conditions and congested road conditions, and the road sections of the uphill road conditions or the congested road conditions are preset road sections; If the initial sub-power generation corresponding to at least some of the segments is outside the target power generation range, the step of increasing or decreasing the initial sub-power generation between the segments to obtain the target sub-power generation corresponding to the segments includes: If the standard power generation corresponding to the preset section is higher than the highest power generation in the target power generation range, the standard power generation corresponding to the preset section is reduced to obtain the corresponding target sub-power generation, and the reduced power generation is added to the section before the preset section.

10. A control device for a vehicle range extender, characterized in that: include: An acquisition module is used to acquire the segmented road conditions of each segment of the remaining driving section of the vehicle, and acquire the required power consumption of the vehicle in the remaining driving section according to the segmented road conditions; wherein two adjacent segments have different segmented road conditions; and determine the target power generation of the vehicle in the remaining driving section based on the current remaining power of the vehicle and the required power consumption; A planning module, which plans the target sub-power generation of all the segments based on the segmented road conditions, and makes the sum of all the target sub-power generation equal to the target power generation; A control module controls the range extender of the vehicle to generate electricity with the target sub-power generation in the segment of the remaining driving section.

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

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

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