Coasting energy feedback method, device, apparatus and computer readable storage medium

Abstract

The application discloses a coasting energy feedback method and device, equipment and computer readable storage medium, and relates to the technical field of vehicle control. The coasting energy feedback method comprises the following steps: obtaining driving condition information of a current vehicle, wherein the driving condition information at least comprises vehicle load, road slope and road friction coefficient; determining a target intensity level of coasting energy feedback of the current vehicle according to the vehicle load, the road slope and the road friction coefficient; and controlling the current vehicle to perform coasting energy feedback based on the target intensity level. The application solves the technical problem that the existing coasting energy feedback method is difficult to adapt to different driving conditions.

Description

Technical Field

[0001] This application relates to the field of vehicle control technology, and in particular to a coasting energy feedback method, device, equipment, and computer-readable storage medium. Background Technology

[0002] Energy recovery function is a function that, under the premise of ensuring the stable driving of new energy vehicles, in order to make full use of the energy of the whole vehicle during deceleration, converts a part of the mechanical energy of the new energy vehicle during coasting or braking into electrical energy through the drive motor and stores it in the power battery, thereby realizing energy conversion and recovery.

[0003] Current coasting energy regeneration systems are generally divided into several intensity levels, such as low, medium, high, or weak, medium, strong. Drivers can select and set different levels of coasting energy regeneration as needed. Once a level is selected, the vehicle will continue to provide coasting energy regeneration at that level unless the selected level is changed.

[0004] Therefore, a relatively fixed coasting energy feedback level may result in either too high or too low feedback levels under different driving conditions, meaning that the existing coasting energy feedback method is difficult to adapt to different driving conditions. Summary of the Invention

[0005] The main purpose of this application is to provide a coasting energy feedback method, which aims to solve the technical problem that existing coasting energy feedback methods are difficult to adapt to different driving conditions.

[0006] To achieve the above objectives, in a first aspect, this application provides a coasting energy feedback method, applied to a coasting energy feedback device, the coasting energy feedback method comprising: Obtain current vehicle driving condition information, which includes at least vehicle load, road slope, and road friction coefficient; The target intensity level of the current vehicle coasting energy feedback is determined based on the vehicle load, the road surface slope, and the road surface friction coefficient. Based on the target intensity level, the current vehicle is controlled to perform coasting energy feedback.

[0007] According to the first aspect, the step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient includes: The first intensity level corresponding to the vehicle load is obtained by querying the first preset mapping table based on the vehicle load. The second intensity level corresponding to the road surface slope is obtained by querying the second preset mapping table based on the road surface slope. The third strength level corresponding to the road surface friction coefficient is obtained by querying the third preset mapping table based on the road surface friction coefficient. The target intensity level of the current vehicle coasting energy feedback is determined based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information.

[0008] According to the first aspect, or any implementation of the first aspect above, the preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. The step of determining the target intensity level of the current vehicle coasting energy feedback based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information includes: Determine whether the first strength level is lower than the second strength level; If the first strength level is lower than the second strength level, then determine whether the third strength level is lower than the first strength level; If the third intensity level is lower than the first intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the first intensity level, then the first intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

[0009] According to the first aspect, or any implementation of the first aspect above, after the step of determining whether the first intensity level is lower than the second intensity level, the method includes: If the first strength level is not lower than the second strength level, then determine whether the third strength level is lower than the second strength level; If the third intensity level is lower than the second intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the second intensity level, then the second intensity level shall be used as the target intensity level for the current vehicle coasting energy feedback.

[0010] According to the first aspect, or any implementation of the first aspect above, after the step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, the method includes: Obtain the current battery state of charge of the vehicle; The fourth intensity level corresponding to the battery's state of charge is obtained by querying the fourth preset mapping table based on the battery's state of charge. A new target intensity level is determined based on the fourth intensity level and the target intensity level.

[0011] According to the first aspect, or any implementation of the first aspect above, the step of determining a new target intensity level based on the fourth intensity level and the target intensity level includes: Determine whether the fourth intensity level is lower than the target intensity level; If the fourth intensity level is lower than the target intensity level, then the fourth intensity level will be used as the new target intensity level.

[0012] According to the first aspect, or any implementation of the first aspect above, after the step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, the method further includes: Obtain the previous intensity level of the current vehicle; If the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output a preset prompt message.

[0013] Secondly, this application provides a coasting energy feedback device, applied to a coasting energy feedback equipment, the coasting energy feedback device comprising: The information acquisition module is used to acquire the current driving condition information of the vehicle, which includes at least the vehicle load, road slope and road friction coefficient. The level identification module is used to determine the target intensity level of the current vehicle's coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient. The feedback control module is used to control the current vehicle to perform coasting energy feedback based on the target intensity level.

[0014] According to the second aspect, the level recognition module is also used for: The first intensity level corresponding to the vehicle load is obtained by querying the first preset mapping table based on the vehicle load. The second intensity level corresponding to the road surface slope is obtained by querying the second preset mapping table based on the road surface slope. The third strength level corresponding to the road surface friction coefficient is obtained by querying the third preset mapping table based on the road surface friction coefficient. The target intensity level of the current vehicle coasting energy feedback is determined based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information.

[0015] According to the second aspect, or any implementation of the second aspect above, the preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load; the level identification module is also used for: Determine whether the first strength level is lower than the second strength level; If the first strength level is lower than the second strength level, then determine whether the third strength level is lower than the first strength level; If the third intensity level is lower than the first intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the first intensity level, then the first intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

[0016] According to the second aspect, or any implementation of the second aspect above, the level identification module is also used for: If the first strength level is not lower than the second strength level, then determine whether the third strength level is lower than the second strength level; If the third intensity level is lower than the second intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the second intensity level, then the second intensity level shall be used as the target intensity level for the current vehicle coasting energy feedback.

[0017] According to the second aspect, or any implementation of the second aspect above, the level identification module is also used for: Obtain the current battery state of charge of the vehicle; The fourth intensity level corresponding to the battery's state of charge is obtained by querying the fourth preset mapping table based on the battery's state of charge. A new target intensity level is determined based on the fourth intensity level and the target intensity level.

[0018] According to the second aspect, or any implementation of the second aspect above, the level identification module is also used for: Determine whether the fourth intensity level is lower than the target intensity level; If the fourth intensity level is lower than the target intensity level, then the fourth intensity level will be used as the new target intensity level.

[0019] According to the second aspect, or any implementation of the second aspect above, the gliding energy feedback device further includes a level indication module, used for: Obtain the previous intensity level of the current vehicle; If the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output a preset prompt message.

[0020] Thirdly, this application provides a gliding energy feedback device, which includes a memory and a processor. The memory stores a computer program that can run on the processor, and the computer program is configured to implement the steps of the gliding energy feedback method as described above.

[0021] Fourthly, this application provides a computer-readable storage medium storing a computer program that, when executed by a processor, causes the processor to perform the gliding energy feedback method as described in any one of the first aspects or possible implementations of the first aspect.

[0022] Fifthly, embodiments of this application provide a computer program including instructions for executing the gliding energy feedback method in the first aspect and any possible implementation thereof.

[0023] This application proposes a coasting energy feedback method, apparatus, device, and computer-readable storage medium. By acquiring current vehicle driving condition information, which includes at least vehicle load, road slope, and road friction coefficient, a target intensity level for coasting energy feedback is determined based on the vehicle load, road slope, and road friction coefficient. Since commercial vehicles frequently load and unload goods, their loads fluctuate significantly. Therefore, this application considers at least vehicle load, road slope, and road friction coefficient as driving condition information, allowing the target intensity level to better match the vehicle's real-time load and road conditions. Then, based on the target intensity level, the current vehicle can be controlled to perform coasting energy feedback. Thus, the target intensity level obtained from the driving condition information in this application can be adapted to different driving conditions, effectively improving the applicability and efficiency of coasting energy feedback. Attached Figure Description

[0024] Figure 1 This is a flowchart illustrating the first embodiment of the gliding energy feedback method of this application; Figure 2 This is a schematic diagram illustrating the scenario involved in the embodiments of this application; Figure 3 This is a flowchart illustrating the second embodiment of the gliding energy feedback method of this application; Figure 4 This is a flowchart illustrating the third embodiment of the gliding energy feedback method of this application; Figure 5 This is a schematic diagram of the gliding energy feedback device of this application; Figure 6 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of this application.

[0025] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0028] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0029] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0030] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0031] Please refer to Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the gliding energy feedback method of this application. It should be noted that although the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than that shown here.

[0032] The first embodiment of this application provides a gliding energy feedback method, which includes the following steps: Step S100: Obtain the current driving condition information of the vehicle, which includes at least the vehicle load, road slope, and road friction coefficient. In this embodiment, it should be noted that the driving condition information includes at least vehicle load, road slope, and road friction coefficient, and may also include current vehicle speed, drive torque, and other condition information. The vehicle load is the real-time load mass of the current vehicle, the road slope is the real-time downward slope of the road surface where the current vehicle is located, and the road friction coefficient is the real-time friction coefficient of the road surface where the current vehicle is located. It is understood that the vehicle load, road slope, and road friction coefficient can be specific numerical values ​​or fuzzy condition levels. Taking the vehicle load as an example, the vehicle load can be in kg, or it can be a heavy load, a medium load, or a light load. The road friction coefficient can be directly determined by collecting the wheel slip ratio of the current vehicle (i.e., the proportion of slippage in wheel movement). A higher slip ratio results in a lower road friction coefficient. Alternatively, road friction audio information, road image information, and other road information can be collected to identify the road friction coefficient.

[0033] The coasting energy feedback method described in this embodiment can be the default coasting energy feedback method of the current vehicle, or it can be the coasting energy feedback method selected by the driver. See also Figure 2 , Figure 2 This is a diagram illustrating an adaptive energy feedback scenario according to an embodiment of this application. It determines whether the current vehicle's coasting energy feedback system is in adaptive feedback mode. If the current vehicle's coasting energy feedback system is in adaptive feedback mode, then step S100 is executed. If the current vehicle's coasting energy feedback system is not in adaptive feedback mode, then the intensity level mode selected by the current coasting energy feedback system (e.g., ...) is obtained. Figure 2 The low-intensity, medium-intensity, and high-intensity gliding energy feedback modes in the game correspond to specific intensity levels (i.e., Figure 2 The intensity levels are low, medium, and high, and the vehicle is controlled to perform coasting energy feedback based on the specified intensity level.

[0034] Step S200: Determine the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient; In this embodiment, it should be noted that there is a corresponding relationship between the vehicle load, the road surface slope, and the road surface friction coefficient and the intensity level of the current vehicle coasting energy feedback. The vehicle load, the road surface slope, and the road surface friction coefficient are positively correlated with the intensity level of the current vehicle coasting energy feedback. That is, the higher the vehicle load, the greater the road surface slope, and the greater the road surface friction coefficient, the higher the intensity level of the current vehicle coasting energy feedback.

[0035] As an example, this embodiment can pre-calibrate the correspondence between vehicle load, road surface slope, and road surface friction coefficient, and the intensity level of the current vehicle coasting energy feedback. This correspondence can be calibrated through actual experiments or through simulation experiments. This embodiment can look up the correspondence based on the vehicle load, road surface slope, and road surface friction coefficient to obtain the intensity level corresponding to the vehicle load, road surface slope, and road surface friction coefficient as the target intensity level of the current vehicle coasting energy feedback.

[0036] As another example, this embodiment can pre-calibrate the correspondence between vehicle load, road surface slope, and road surface friction coefficient, and the intensity level of the current vehicle coasting energy feedback. This embodiment can query the correspondence between vehicle load and the target intensity level of the current vehicle coasting energy feedback to obtain a first intensity level based on the vehicle load. Then, based on the road surface slope, query the correspondence between the road surface slope and the intensity level of the current vehicle coasting energy feedback to obtain a second intensity level. Then, based on the road surface friction coefficient, query the correspondence between the road surface friction coefficient and the intensity level of the current vehicle coasting energy feedback to obtain a third intensity level. Finally, based on the first intensity level, the second intensity level, and the third intensity level, the target intensity level of the current vehicle coasting energy feedback is determined. For example, the highest intensity level among the first, second, and third intensity levels can be used as the target intensity level to ensure maximized coasting energy feedback efficiency. Alternatively, the lowest intensity level among the first, second, and third intensity levels can be used as the target intensity level. In addition, different priorities can be set for each condition information in the driving condition information, so that the intensity level can be selected from the first intensity level, the second intensity level and the third intensity level as the target intensity level according to the priority.

[0037] Step S300: Based on the target intensity level, control the current vehicle to perform coasting energy feedback.

[0038] In this embodiment, it should be noted that the higher the target strength level, the higher the corresponding feedback torque of the gliding energy feedback will be, and the stronger the deceleration feeling will be for the driver.

[0039] In this embodiment, after identifying the target intensity level of the vehicle's coasting energy feedback corresponding to the vehicle load, road surface slope, and road surface friction coefficient, the vehicle can be controlled to output the corresponding feedback torque based on the target intensity level to provide coasting energy feedback. This converts the vehicle's mechanical energy into electrical energy for storage, improving the vehicle's fuel economy. It is understood that after identifying the target intensity level, this embodiment can output preset prompt information for the target intensity level. This preset prompt information can be in the form of images, symbols, text, or voice to inform the driver of the coasting energy feedback intensity level. For example, the instrument panel or central control display can show or announce whether the current coasting energy feedback intensity level is in automatic adjustment mode, and simultaneously show or announce whether the intensity level is low, medium, or high.

[0040] After the step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, the method further includes: Step S400: Obtain the previous intensity level of the current vehicle; In step S500, if the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output a preset prompt message.

[0041] In this embodiment, it should be noted that the previous intensity level is the intensity level of the coasting energy feedback of the current vehicle at the previous moment.

[0042] To reduce the interference of frequently prompting the driver with the target intensity level, this embodiment can obtain the previous intensity level of the current vehicle; then determine whether the target intensity level is consistent with the previous intensity level to determine whether the intensity level of the current vehicle's coasting energy feedback has changed. If the target intensity level is inconsistent with the previous intensity level, it indicates that the intensity level of the current vehicle's coasting energy feedback has changed, and the current vehicle can be controlled to output preset prompt information. The preset prompt information can be in the form of images, symbols, text, voice, etc., to prompt the driver with information about the coasting energy feedback intensity level. If the target intensity level is consistent with the previous intensity level, it indicates that the intensity level of the current vehicle's coasting energy feedback has not changed, and the step of determining whether the target intensity level is consistent with the previous intensity level can be executed. This embodiment compares the target intensity level with the previous intensity level; if the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output preset prompt information. This reduces the interference of frequently prompting the driver with the target intensity level and improves the driver's driving experience while still providing the target intensity level.

[0043] In the first embodiment of this application, the current driving condition information of the vehicle is obtained, which includes at least vehicle load, road slope, and road friction coefficient. Based on the vehicle load, road slope, and road friction coefficient, a target intensity level for the current vehicle's coasting energy feedback is determined. Since commercial vehicles frequently load and unload goods, their loads fluctuate significantly. Therefore, this embodiment considers at least vehicle load, road slope, and road friction coefficient as driving condition information, allowing the target intensity level to better match the vehicle's real-time load and road conditions. Then, based on the target intensity level, the current vehicle can be controlled to perform coasting energy feedback. Thus, the target intensity level obtained from the driving condition information in this embodiment can be adapted to different driving conditions, effectively improving the applicability and efficiency of coasting energy feedback.

[0044] Reference Figure 3 , Figure 3 This is a flowchart illustrating the second embodiment of the gliding energy feedback method of this application.

[0045] In another embodiment of this application, content that is the same as or similar to the above embodiments can be referred to the above description, and will not be repeated hereafter. A second embodiment of this application provides a coasting energy feedback method. Step S200, which involves determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, includes: Step S210: Query the first preset mapping table according to the vehicle load to obtain the first strength level corresponding to the vehicle load; Step S220: Query the second preset mapping table according to the road surface slope to obtain the second strength level corresponding to the road surface slope; Step S230: Query the third preset mapping table according to the road surface friction coefficient to obtain the third strength level corresponding to the road surface friction coefficient; Step S240: Determine the target intensity level of the current vehicle coasting energy feedback based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information.

[0046] In this embodiment, it should be noted that the first preset mapping table is used to describe the correspondence between vehicle load and the intensity level of coasting energy feedback; the second preset mapping table is used to describe the correspondence between road surface slope and the intensity level of coasting energy feedback; and the third preset mapping table is used to describe the correspondence between road surface friction coefficient and the intensity level of coasting energy feedback. The vehicle load, road surface slope, and road surface friction coefficient are positively correlated with the intensity level of the current vehicle coasting energy feedback; that is, the higher the vehicle load, the greater the road surface slope, and the greater the road surface friction coefficient, the higher the intensity level of the current vehicle coasting energy feedback.

[0047] In this embodiment, it should also be noted that the preset priority is a pre-set priority for each condition information in the driving condition information. For example, the preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. The preset priority can also be that the road surface friction coefficient is higher than the vehicle load and the road surface slope, with the vehicle load and road surface slope having the same priority. The preset priority can be set according to actual needs.

[0048] The vehicle load is queried from a first preset mapping table to obtain a first strength level corresponding to the vehicle load; the road surface slope is queried from a second preset mapping table to obtain a second strength level corresponding to the road surface slope; the road surface friction coefficient is queried from a third preset mapping table to obtain a third strength level corresponding to the road surface friction coefficient; and the target strength level for the current vehicle coasting energy feedback is determined based on the first, second, and third strength levels, and the preset priority of the driving condition information. If the strength level corresponding to a higher priority driving condition information in the preset priority is lower than the strength level corresponding to a lower priority driving condition information in the preset priority, then the strength level corresponding to the higher priority driving condition information can be selected as the target strength level. Alternatively, the highest strength level among the strength levels corresponding to driving condition information with the same priority in the preset priority can be selected as the target strength level. It is understood that the target strength level is neither higher than the strength level corresponding to the highest priority driving condition information in the preset priority, nor lower than the strength level corresponding to the lowest priority driving condition information in the preset priority. As an example, the preset priority can also be such that the road surface friction coefficient is higher than both the vehicle load and the road surface slope, and the vehicle load and the road surface slope have the same priority. This embodiment can determine whether the first intensity level is lower than the second intensity level or lower than the third intensity level. If the first intensity level is lower than the second intensity level but not lower than the third intensity level, then the third intensity level is used as the target intensity level for the current vehicle coasting energy feedback. If the first intensity level is not lower than the second intensity level but lower than the third intensity level, then the second intensity level is used as the target intensity level for the current vehicle coasting energy feedback. It can also determine whether the third intensity level is lower than the first intensity level. If the third intensity level is lower than the first intensity level, then the third intensity level is used as the target intensity level for the current vehicle coasting energy feedback. If the first intensity level is lower than and lower than the second intensity level, then the highest intensity level among the second and third intensity levels is used as the target intensity level for the current vehicle coasting energy feedback.

[0049] The preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. Step S240, which involves determining the target intensity level of the current vehicle coasting energy feedback based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information, includes: Step A10: Determine whether the first strength level is lower than the second strength level; Step A20: If the first strength level is lower than the second strength level, then determine whether the third strength level is lower than the first strength level; Step A30: If the third intensity level is lower than the first intensity level, then the third intensity level is used as the target intensity level for the current vehicle coasting energy feedback. Step A40: If the third intensity level is not lower than the first intensity level, then the first intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

[0050] In this embodiment, it should be noted that the preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. This preset priority can prevent the vehicle from using a higher gliding energy feedback intensity level when the road surface friction coefficient is low (such as when the road is icy or slippery).

[0051] This embodiment determines whether the lowest priority vehicle load will limit the second highest priority road slope by judging whether the first strength level is lower than the second strength level. If the first strength level is lower than the second strength level, it means that the lowest priority vehicle load will limit the second highest priority road slope. Then, it further determines whether the third strength level is lower than the first strength level to determine whether the highest priority road friction coefficient will limit the lowest priority vehicle load. If the third strength level is lower than the first strength level, it means that the highest priority road friction coefficient will not limit the lowest priority vehicle load, and the third strength level is used as the target strength level for the current vehicle coasting energy feedback. If the third strength level is not lower than the first strength level, it means that the highest priority road friction coefficient will limit the lowest priority vehicle load, and the first strength level is used as the target strength level for the current vehicle coasting energy feedback.

[0052] This embodiment sets a preset priority where the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. This preset priority is then used to determine the first, second, and third strength levels to identify the target strength level that meets the preset priority. This avoids the vehicle using a high coasting energy feedback strength level when the road surface friction coefficient is low (such as on icy or slippery roads). In such cases, not only is vehicle slippage more likely, affecting driving safety, but it can also trigger the anti-lock braking system (ABS) during skidding, causing the coasting energy feedback to disengage and reducing its efficiency. Therefore, this embodiment not only ensures vehicle driving safety but also guarantees the efficiency of coasting energy feedback.

[0053] The step after determining whether the first strength level is lower than the second strength level in step A10 includes: Step B10: If the first strength level is not lower than the second strength level, then determine whether the third strength level is lower than the second strength level. Step B20: If the third intensity level is lower than the second intensity level, then the third intensity level is used as the target intensity level for the current vehicle coasting energy feedback. Step B30: If the third intensity level is not lower than the second intensity level, then the second intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

[0054] This embodiment determines whether the lowest priority vehicle load will limit the second highest priority road surface slope by judging whether the first strength level is lower than the second strength level. If the first strength level is not lower than the second strength level, it means that the lowest priority vehicle load will not limit the second highest priority road surface slope, and then it can be judged whether the third strength level is lower than the second strength level to determine whether the second highest priority road surface slope will limit the highest priority road surface friction coefficient; if the third strength level is lower than the second strength level, it means that the second highest priority road surface slope will not limit the highest priority road surface friction coefficient, and then the third strength level is used as the target strength level for the current vehicle coasting energy feedback; if the third strength level is not lower than the second strength level, it means that the second highest priority road surface slope will limit the highest priority road surface friction coefficient, and then the second strength level is used as the target strength level for the current vehicle coasting energy feedback.

[0055] In the second embodiment of this application, a first intensity level corresponding to the vehicle load is obtained by querying a first preset mapping table based on the vehicle load; a second intensity level corresponding to the road surface slope is obtained by querying a second preset mapping table based on the road surface slope; and a third intensity level corresponding to the road surface friction coefficient is obtained by querying a third preset mapping table based on the road surface friction coefficient. This yields the required intensity level of coasting energy feedback based on the driving condition information. Then, based on the first, second, and third intensity levels, and the preset priority of the driving condition information, the target intensity level of the current vehicle coasting energy feedback is determined. Therefore, the target intensity level in this embodiment not only matches the requirements of the driving condition information but also satisfies the preference tendencies for different driving condition information by setting preset priorities, thus improving the adaptability of the target intensity level to different driving conditions and preferences.

[0056] Reference Figure 4 , Figure 4 This is a flowchart illustrating the third embodiment of the gliding energy feedback method of this application.

[0057] In another embodiment of this application, content that is the same as or similar to the above embodiments can be referred to the above description, and will not be repeated hereafter. A third embodiment of this application provides a coasting energy feedback method, which, after the step S200 of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, includes: Step C10: Obtain the current battery state of charge of the vehicle; Step C20: Query the fourth preset mapping table according to the battery state of charge to obtain the fourth intensity level corresponding to the battery state of charge; Step C30: Determine a new target intensity level based on the fourth intensity level and the target intensity level.

[0058] In this embodiment, it should be noted that the fourth preset mapping table is a mapping table used to describe the correspondence between the battery state of charge and the intensity level of gliding energy feedback. There is a negative correlation between the battery state of charge and the intensity level of gliding energy feedback. The higher the battery state of charge (i.e., the more remaining power), the lower the intensity level of gliding energy feedback.

[0059] Since the battery state of charge (SBC) reflects the current vehicle's energy demand, this embodiment can obtain the current vehicle's SBC. A fourth preset mapping table is then consulted based on the SBC to obtain the fourth intensity level corresponding to the SBC. A new target intensity level is determined based on the fourth intensity level and the target intensity level. For example, this embodiment can use the fourth intensity level as the new target intensity level when the fourth intensity level is lower than the target intensity level; that is, when the battery SBC is high and the current vehicle's energy demand is low, a lower fourth intensity level is used for coasting energy feedback. If the fourth intensity level is not lower than the target intensity level, it indicates that the current vehicle has a high energy demand for coasting energy feedback. Due to limitations imposed by the driving condition information, the current vehicle can be controlled to perform coasting energy feedback based on the target intensity level.

[0060] The step C30, which involves determining a new target intensity level based on the fourth intensity level and the target intensity level, includes: Step D10: Determine whether the fourth intensity level is lower than the target intensity level; Step D20: If the fourth intensity level is lower than the target intensity level, then the fourth intensity level is taken as the new target intensity level.

[0061] Considering that a higher target intensity level corresponds to a higher feedback torque from coasting energy regeneration, resulting in a stronger deceleration sensation for the driver, and given that the vehicle's battery state of charge is high, the current vehicle's demand for coasting energy regeneration is not high. Therefore, in this embodiment, to reduce the driver's unnecessary strong deceleration sensation, it can be determined whether the fourth intensity level is lower than the target intensity level. If the fourth intensity level is lower than the target intensity level, it indicates that the current vehicle's demand for coasting energy regeneration is not high, and the fourth intensity level can be used as the new target intensity level. If the fourth intensity level is not lower than the target intensity level, it indicates that the current vehicle's demand for coasting energy regeneration is not high, and the current vehicle can be controlled to perform coasting energy regeneration based on the target intensity level.

[0062] Furthermore, when the fourth intensity level is not lower than the target intensity level, but the fourth intensity level is lower than the preset depletion intensity level, the current vehicle can be controlled to perform coasting energy feedback based on the target intensity level. When the fourth intensity level is not lower than the target intensity level, but the fourth intensity level is not lower than the preset depletion intensity level, the fourth intensity level can be used as the new target intensity level. The preset depletion intensity level is a pre-set intensity level representing the coasting energy feedback intensity corresponding to a severely depleted battery state (i.e., below a preset charge threshold). That is, in this embodiment, when the current vehicle's energy demand is high, considering that the new energy vehicle may have a range extender generating electricity, a target intensity level lower than the fourth intensity level can be used for coasting energy feedback to reduce unnecessary strong deceleration and ensure the driver's driving experience. However, when the fourth intensity level is higher than the preset depletion intensity level, it indicates that the current vehicle's energy demand is extremely high (i.e., in a severely depleted state), and a higher fourth intensity level can be used for coasting energy feedback to ensure the current vehicle's range in the current time period.

[0063] In the third embodiment of this application, the current battery state of charge of the vehicle is obtained; a fourth preset mapping table is consulted based on the battery state of charge to obtain a fourth intensity level corresponding to the battery state of charge; and a new target intensity level is determined based on the fourth intensity level and the target intensity level. Therefore, this embodiment considers the current battery state of charge of the vehicle in addition to driving condition information. This allows the new target intensity level to adapt to different driving conditions and meet the energy requirements under different battery state of charge, avoiding the use of a high intensity level for coasting energy feedback when the current vehicle's energy feedback requirement for coasting energy is not high, thus preventing unnecessary and strong deceleration sensations for the driver.

[0064] See Figure 5 , Figure 5 This is a schematic diagram of the gliding energy feedback device of this application.

[0065] like Figure 5 As shown, this application provides a coasting energy feedback device, applied to a coasting energy feedback equipment, the coasting energy feedback device comprising: The information acquisition module 10 is used to acquire the current driving condition information of the vehicle, which includes at least the vehicle load, road slope and road friction coefficient. The grade identification module 20 is used to determine the target intensity level of the current vehicle gliding energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient. The feedback control module 30 is used to control the current vehicle to perform coasting energy feedback based on the target intensity level.

[0066] Optionally, the grade recognition module 20 is also used for: The first intensity level corresponding to the vehicle load is obtained by querying the first preset mapping table based on the vehicle load. The second intensity level corresponding to the road surface slope is obtained by querying the second preset mapping table based on the road surface slope. The third strength level corresponding to the road surface friction coefficient is obtained by querying the third preset mapping table based on the road surface friction coefficient. The target intensity level of the current vehicle coasting energy feedback is determined based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information.

[0067] Optionally, the preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load; the level identification module 20 is also used for: Determine whether the first strength level is lower than the second strength level; If the first strength level is lower than the second strength level, then determine whether the third strength level is lower than the first strength level; If the third intensity level is lower than the first intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the first intensity level, then the first intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

[0068] Optionally, the grade recognition module 20 is also used for: If the first strength level is not lower than the second strength level, then determine whether the third strength level is lower than the second strength level; If the third intensity level is lower than the second intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the second intensity level, then the second intensity level shall be used as the target intensity level for the current vehicle coasting energy feedback.

[0069] Optionally, the grade recognition module 20 is also used for: Obtain the current battery state of charge of the vehicle; The fourth intensity level corresponding to the battery's state of charge is obtained by querying the fourth preset mapping table based on the battery's state of charge. A new target intensity level is determined based on the fourth intensity level and the target intensity level.

[0070] Optionally, the grade recognition module 20 is also used for: Determine whether the fourth intensity level is lower than the target intensity level; If the fourth intensity level is lower than the target intensity level, then the fourth intensity level will be used as the new target intensity level.

[0071] Optionally, the gliding energy feedback device further includes a level indication module for: Obtain the previous intensity level of the current vehicle; If the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output a preset prompt message.

[0072] The coasting energy feedback device provided in this application employs the coasting energy feedback methods described in the above embodiments, solving the technical problem that existing coasting energy feedback methods are difficult to adapt to different driving conditions. Compared with the prior art, the beneficial effects of the coasting energy feedback device provided in this application are the same as those of the coasting energy feedback methods provided in the above embodiments, and other technical features of this coasting energy feedback device are the same as those disclosed in the methods of the above embodiments, and will not be repeated here.

[0073] like Figure 6 As shown, Figure 6 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of this application.

[0074] Specifically, the coasting energy feedback device can be a VCU (Vehicle Control Unit), PC (Personal Computer), tablet computer, portable computer, or server, etc.

[0075] like Figure 6 As shown, the gliding energy feedback device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen and an input unit such as a keyboard. The user interface 1003 may also include standard wired and wireless interfaces. Optionally, the network interface 1004 may include standard wired and wireless interfaces (such as a Wi-Fi interface). The memory 1005 may be a high-speed random access memory (RAM) or a stable non-volatile memory (NVM), such as a disk drive. Alternatively, the memory 1005 may be a storage device independent of the aforementioned processor 1001.

[0076] Those skilled in the art will understand that Figure 6 The device structure shown does not constitute a limitation on the gliding energy feedback device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0077] like Figure 6 As shown, the memory 1005, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and a gliding energy feedback application.

[0078] exist Figure 6 In the device shown, the network interface 1004 is mainly used to connect to the backend server and communicate data with the backend server; the user interface 1003 is mainly used to connect to the client and communicate data with the client; and the processor 1001 can be used to call the computer program stored in the memory 1005 to implement the operation in the gliding energy feedback method provided in the above embodiment.

[0079] Furthermore, this application also proposes a computer storage medium storing a computer program. When the computer program is executed by a processor, it implements the operations in the gliding energy feedback method provided in the above embodiments. The specific steps will not be described in detail here.

[0080] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity / operation / object from another, and do not necessarily require or imply any such actual relationship or order between these entities / operations / objects; the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0081] For the device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and relevant details can be found in the description of the method embodiments. The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separate. Some or all of the modules can be selected according to actual needs to achieve the purpose of this application. Those skilled in the art can understand and implement this without creative effort.

[0082] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0083] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, television, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0084] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A gliding energy feedback method, characterized in that, The gliding energy feedback method includes the following steps: Obtain current vehicle driving condition information, which includes at least vehicle load, road slope, and road friction coefficient; The target intensity level of the current vehicle coasting energy feedback is determined based on the vehicle load, the road surface slope, and the road surface friction coefficient. Based on the target intensity level, control the current vehicle to perform coasting energy feedback; The step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient includes: Obtain the current battery state of charge of the vehicle; The fourth intensity level corresponding to the battery's state of charge is obtained by querying the fourth preset mapping table based on the battery's state of charge. Determine whether the fourth intensity level is lower than the target intensity level; If the fourth intensity level is lower than the target intensity level, then the fourth intensity level will be used as the new target intensity level.

2. The gliding energy feedback method as described in claim 1, characterized in that, The step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient includes: The first intensity level corresponding to the vehicle load is obtained by querying the first preset mapping table based on the vehicle load. The second intensity level corresponding to the road surface slope is obtained by querying the second preset mapping table based on the road surface slope. The third strength level corresponding to the road surface friction coefficient is obtained by querying the third preset mapping table based on the road surface friction coefficient. The target intensity level of the current vehicle coasting energy feedback is determined based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information.

3. The gliding energy feedback method as described in claim 2, characterized in that, The preset priority is that the road surface friction coefficient is higher than the road surface slope, and the road surface slope is higher than the vehicle load. The step of determining the target intensity level of the current vehicle coasting energy feedback based on the first intensity level, the second intensity level, the third intensity level, and the preset priority of the driving condition information includes: Determine whether the first strength level is lower than the second strength level; If the first strength level is lower than the second strength level, then determine whether the third strength level is lower than the first strength level; If the third intensity level is lower than the first intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the first intensity level, then the first intensity level is used as the target intensity level for the current vehicle coasting energy feedback.

4. The gliding energy feedback method as described in claim 3, characterized in that, After the step of determining whether the first strength level is lower than the second strength level, the following is included: If the first strength level is not lower than the second strength level, then determine whether the third strength level is lower than the second strength level; If the third intensity level is lower than the second intensity level, then the third intensity level will be used as the target intensity level for the current vehicle coasting energy feedback; If the third intensity level is not lower than the second intensity level, then the second intensity level shall be used as the target intensity level for the current vehicle coasting energy feedback.

5. The gliding energy feedback method as described in any one of claims 1 to 4, characterized in that, After the step of determining the target intensity level of the current vehicle coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient, the method further includes: Obtain the previous intensity level of the current vehicle; If the target intensity level is inconsistent with the previous intensity level, the current vehicle is controlled to output a preset prompt message.

6. A gliding energy feedback device, characterized in that, The gliding energy feedback device includes: The information acquisition module is used to acquire the current driving condition information of the vehicle, which includes at least the vehicle load, road slope and road friction coefficient. The level identification module is used to determine the target intensity level of the current vehicle's coasting energy feedback based on the vehicle load, the road surface slope, and the road surface friction coefficient. The feedback control module is used to control the current vehicle to perform coasting energy feedback based on the target intensity level; The grade identification module is also used for: Obtain the current battery state of charge of the vehicle; The fourth intensity level corresponding to the battery's state of charge is obtained by querying the fourth preset mapping table based on the battery's state of charge. Determine whether the fourth intensity level is lower than the target intensity level; If the fourth intensity level is lower than the target intensity level, then the fourth intensity level will be used as the new target intensity level.

7. A gliding energy feedback device, characterized in that, The gliding energy feedback device includes: a memory and a processor, wherein the memory stores a computer program that can run on the processor, and the computer program, when executed by the processor, implements the steps of the gliding energy feedback method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the gliding energy feedback method as described in any one of claims 1 to 5.

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