Vehicle torque output control method and device and electronic equipment

Abstract

The invention relates to the technical field of vehicle control, and provides a vehicle torque output control method and device and electronic equipment. Comprising the steps of collecting vehicle driving parameters; analyzing a common accelerator pedal opening interval of the user based on the vehicle driving parameters; if the opening degree interval of the accelerator pedal commonly used by the user is not consistent with the preset comfortable operation interval, the mapping relation between the opening degree of the accelerator pedal and torque output is adjusted, so that the opening degree interval of the accelerator pedal commonly used by the user in the adjusted mapping relation is consistent with the preset comfortable operation interval; and performing torque output control based on the adjusted mapping relation. The relation between the opening degree of the accelerator pedal and the output torque of the power assembly of the vehicle at different vehicle speeds can be dynamically adjusted in combination with the using habits of a user, and the using requirements of different driving habits and scenes of the user are met.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle control, and particularly to a vehicle torque output control method, device and electronic device. Background Art

[0002] In conventional vehicle designs, the acceleration pedal map sets the relationship between torque, powertrain speed (corresponding to vehicle speed) and acceleration pedal opening within the full travel range of the pedal. However, in actual driving scenarios, most users are restricted by road conditions and driving habits during daily driving, making it difficult to step on the vehicle's acceleration pedal over a large range or the full travel. Usually, the pedal travel for stepping on the acceleration pedal mostly concentrates within a certain range in the front part of the pedal. This traditional full-travel pedal map design cannot well adapt to the actual driving habits of the majority of users, is difficult to meet the personalized vehicle use needs of users, and to a certain extent affects the subjective driving experience of users.

[0003] And there are usually a limited number of driving modes such as Eco (economy), Normal (normal), Sport (sport) etc. set on the vehicle, and each mode corresponds to a corresponding acceleration pedal map. When the user selects a driving mode, the system calls the acceleration pedal map under the corresponding mode to meet the different driving habits and scenario use needs of the user. However, the available driving modes are limited, making it difficult to achieve seamless matching between the driving mode and the actual driving needs of the user; and when the user selects a driving mode, most of the time it is based on experience, making it difficult to accurately match the driving mode and driving needs. In addition, for novice or inexperienced users, different mode selections will also cause trouble to the user.

[0004] Therefore, it is necessary to develop an acceleration pedal map that can be intelligently matched according to the user's driving habits to meet the personalized vehicle use needs of users. Summary of the Invention

[0005] In view of this, the embodiments of the present application provide a vehicle torque output control method, device and electronic device, which can perform intelligent matching of the acceleration pedal map according to the user's driving habits, thereby meeting the personalized vehicle use needs of users.

[0006] The first aspect of the embodiments of the present application provides a vehicle torque output control method, including:

[0007] Collect vehicle driving parameters;

[0008] Analyze the user's commonly used acceleration pedal opening range based on the vehicle driving parameters;

[0009] If the user's commonly used accelerator pedal opening range is inconsistent with the preset comfortable operation range, adjusting the mapping relationship between the accelerator pedal opening and the torque output so that the user's commonly used accelerator pedal opening range in the adjusted mapping relationship is consistent with the preset comfortable operation range;

[0010] Torque output control is performed based on the adjusted mapping relationship.

[0011] In one embodiment, the collected vehicle driving parameters include vehicle speed, powertrain speed, output torque, and corresponding accelerator pedal travel.

[0012] In one embodiment, analyzing the user's frequently used accelerator pedal opening range based on the vehicle driving parameters includes determining the user's frequently used accelerator pedal opening range through a probability distribution of a pedal stepping position marked by an accelerator pedal position signal.

[0013] In one embodiment, the adjusting the mapping relationship between the accelerator pedal opening and the torque output so that the user's commonly used accelerator pedal opening range in the adjusted mapping relationship is consistent with the preset comfortable operation range includes:

[0014] The original mapping function f(x) is converted into a new mapping function g(x) through piecewise mapping, so that in the new mapping function g(x), a preset comfortable operation range corresponds to the torque output of the original mapping function f(x) in the user's commonly used accelerator pedal opening range.

[0015] In one embodiment, the calculation formula of the new mapping function g(x) is:

[0016]

[0017] Where x is the pedal opening, [x t1 ,x t2 ] is the accelerator pedal opening range commonly used by users, [x th1 ,x th2 ] is the preset comfortable operating range.

[0018] In one embodiment, the method further includes gradually adjusting the mapping parameters according to the time window Δt to smoothly transition to the adjusted mapping relationship.

[0019] In one embodiment, the step of gradually adjusting the mapping parameters according to the time window Δt to smoothly transition to the adjusted mapping relationship includes:

[0020] In the time window Δt, x t1 Adjust to x by time step Δx1 th1 , x t2 Adjust to x by time step Δx2 th2 ;

[0021] Among them, [x t1 , x t2 is the opening range of the accelerator pedal commonly used by the user, and [x th1 , x th2 is the preset comfortable operation range.

[0022] The second aspect of the embodiments of the present application provides a vehicle torque output control device, including:

[0023] A data acquisition module for acquiring vehicle driving parameters;

[0024] A data analysis module for analyzing the opening range of the accelerator pedal commonly used by the user based on the vehicle driving parameters;

[0025] An intelligent matching module for adjusting the mapping relationship between the accelerator pedal opening and the torque output if the opening range of the accelerator pedal commonly used by the user is inconsistent with the preset comfortable operation range, so that the opening range of the accelerator pedal commonly used by the user in the adjusted mapping relationship is consistent with the preset comfortable operation range;

[0026] A control module for performing torque output control based on the adjusted mapping relationship.

[0027] In one embodiment, it further includes a storage module for memorizing and storing the mapping relationship between the accelerator pedal opening and the torque output that matches different user operation habits.

[0028] The third aspect of the embodiments of the present application provides an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the electronic device implements the vehicle torque output control method provided in the first aspect of the embodiments of the present application.

[0029] The fourth aspect of the embodiments of the present application provides a computer program product, including a computer program. When the computer program is run, the method described in the first aspect of the embodiments of the present application is executed.

[0030] The vehicle torque output control method provided in the first aspect of the embodiment of the present application realizes the intelligent reconstruction of the accelerator pedal map by dynamically analyzing the matching relationship between the user's driving habits and the preset comfort range. The driving comfort requirements are combined with the personalized operation characteristics to optimize the power output curve. Compared with the traditional fixed map solution, this method can automatically compensate for the torque response deviation caused by the difference in the driver's operating habits, so that the vehicle always maintains the best human-machine matching state. This control strategy based on driving behavior adaptation achieves the best match with the user's driving needs, meets the user's driving needs, and eliminates the user's choice of driving mode. By intelligently adjusting the relationship between the accelerator pedal opening and the powertrain output torque, the user's accelerator pedal high-frequency pedaling depth is controlled in the most comfortable pedaling range, solving the control fatigue caused by the fixed mapping relationship between the accelerator pedal opening and the powertrain torque output. For conservative users with low power requirements, by optimizing the torque resolution of the low opening range, the pedal "over-sensitivity" problem is avoided, making the vehicle easy to control. For aggressive users with strong power requirements, by compressing the accelerator pedal opening corresponding to the low torque range, the pedal is avoided from frequent "flooring oil", making the vehicle easy to drive and not easy to fatigue.

[0031] It can be understood that the beneficial effects of the second to fourth aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 It is a flow chart of a vehicle torque output control method provided by an embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the principle of intelligent matching of the accelerator pedal map of the present application;

[0035] Figure 3 is a structural schematic diagram of a vehicle torque output control device provided by an embodiment of the present application;

[0036] Figure 4 is a structural schematic diagram of a vehicle torque output control device provided by another embodiment of the present application;

[0037] Figure 5 It is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] In the following description, specific details such as specific system architectures and technologies are presented for purposes of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, those skilled in the art should understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid unnecessary details from obscuring the description of the present application.

[0039] It should be understood that when used in the specification of the present application and the appended claims, the term "comprising" indicates the presence of the described features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or their combinations.

[0040] As used in the specification of the present application and the appended claims, the term "if" can be interpreted as "when" or "once" or "in response to determining" or "in response to detecting" depending on the context. Similarly, the phrase "if it is determined" or "if [the described condition or event] is detected" can be interpreted as meaning "once it is determined" or "in response to determining" or "once [the described condition or event] is detected" or "in response to detecting [the described condition or event]" depending on the context.

[0041] References to "one embodiment" or "some embodiments" or the like described in the specification of the present application mean that a particular feature, structure, or characteristic described in connection with that embodiment is included in one or more embodiments of the present application. Thus, statements such as "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification are not necessarily all referring to the same embodiment, but rather mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in another way.

[0042] As Figure 1 shown, the vehicle torque output control method provided by the embodiments of the present application includes the following steps S101 to S104:

[0043] Step S101, collect vehicle driving parameters;

[0044] Step S102, analyze the user's common accelerator pedal opening range based on the vehicle driving parameters;

[0045] Step S103: If the user's common accelerator pedal opening range is inconsistent with the preset comfortable operation range, adjust the mapping relationship between the accelerator pedal opening and torque output so that in the adjusted mapping relationship, the user's common accelerator pedal opening range is consistent with the preset comfortable operation range;

[0046] Step S104: Perform torque output control based on the adjusted mapping relationship.

[0047] In application, before the vehicle leaves the factory, the manufacturer provides the accelerator pedal map as a basis (for subsequent user habit matching or restoring the default settings). Usually, this map defines the relationship between the accelerator pedal opening and the power-train torque output at different power-train speeds (corresponding to vehicle speeds), as shown in Table 1:

[0048]

[0049] This map controls the user's common operation range within 40%-60% of the pedal depth (different manufacturers may have different settings according to the pedal form and pedal force characteristics). In this common range, the pedal force and the user's stepping posture are more appropriate. However, for some personalized users, the above basic accelerator pedal settings often cannot meet their needs.

[0050] As Figure 2 shown, at a certain power-train speed, the relationship curve of the power-train output torque with the accelerator pedal opening. Based on the original accelerator pedal map, aggressive users have higher power requirements when driving, and the common driving pedal range is concentrated in 60%-80%. Obviously, it is inconsistent with the manufacturer's preset comfortable operation range of 40%-60%. As a result, users often need to step on the accelerator pedal to a deeper opening. At this opening, on the one hand, the required pedal force is greater, and on the other hand, the ergonomics of the stepping position is worse than the stepping posture corresponding to the common range, which is likely to cause user fatigue and complaints.

[0051] By adjusting the mapping relationship between the accelerator pedal opening and torque output, so that in the adjusted mapping relationship, the user's common accelerator pedal opening range is consistent with the preset comfortable operation range. In the adjusted mapping relationship, the output torque corresponding to the manufacturer's preset comfortable operation range is the output torque corresponding to 60%-80% of the user's common accelerator pedal opening range in the original mapping relationship. Therefore, for this aggressive user, to achieve the same output torque, the stepping depth of the accelerator pedal is reduced to the comfortable range, optimizing the driving experience.

[0052] In application, if the user's common accelerator pedal opening range is consistent with the preset comfortable operation range, directly call the map preset by the manufacturer for torque output control.

[0053] In the embodiments of the present application, by dynamically analyzing the matching relationship between the user's driving habits and the preset comfort range, the intelligent reconstruction of the accelerator pedal map is realized. By combining the driving comfort requirements with the personalized operation characteristics, the power output curve is optimized. Compared with the traditional fixed map solution, this method can automatically compensate for the torque response deviation caused by the differences in driver operation habits, so that the vehicle always maintains the best man-machine matching state. This control strategy based on driving behavior adaptation realizes the best matching with the user's driving needs, meets the user's driving needs, and at the same time eliminates the user's trouble in choosing the driving mode. By intelligently adjusting the relationship between the accelerator pedal opening and the output torque of the powertrain, the high-frequency stepping depth of the user's accelerator pedal is controlled within the most comfortable stepping range, solving the control fatigue caused by the fixed mapping relationship between the accelerator pedal opening and the powertrain torque output. For aggressive users, the stepping stroke can be effectively reduced, reducing user fatigue while improving the vehicle's power response performance; for conservative users, the pedal stroke can be appropriately enlarged, improving their control accuracy while ensuring their operation comfort; by collecting the user's operation data through the existing vehicle sensors, analyzing their driving habits, and performing intelligent reconstruction and matching based on the original factory map data combined with the user's driving habits, no additional hardware or calibration process is required.

[0054] In one embodiment, the collected vehicle driving parameters include vehicle speed, powertrain speed, output torque, and the corresponding accelerator pedal stroke.

[0055] In one embodiment, analyzing the user's common accelerator pedal opening range based on the vehicle driving parameters includes determining the user's common accelerator pedal opening range through the probability distribution of the pedal stepping position marked by the throttle pedal position signal.

[0056] In specific implementation, the vehicle speed signal, powertrain speed sensor data, drive motor output torque parameters, and accelerator pedal displacement sensor signal can be collected in real time through in-vehicle sensors, establishing a time series data set and storing it in the in-vehicle control unit; discretizing the throttle pedal opening signal based on a preset sampling period, dividing the full pedal stroke into several equal intervals, counting the occurrence frequency of each pedal opening interval in a continuous driving cycle and generating a probability density curve, calculating the continuous opening interval range covering a set cumulative probability threshold (such as 70%) through a sliding window algorithm, excluding abnormal data points in transient rapid acceleration or coasting conditions, taking the median point of the maximum probability density interval as the reference value of the user's common accelerator pedal opening, and finally dynamically calibrating the reference value through a Kalman filter algorithm to form stable operation interval parameters characterizing the user's driving habits.

[0057] The embodiment of the present application adopts a technical solution of probability distribution statistics of user's commonly used operation intervals. Through big data accumulation analysis, it can accurately capture the user's long-term driving behavior characteristics and avoid the interference of instantaneous abnormal operations on the statistical results; the interval division method based on probability density function can adapt to the data distribution law of different driving styles, which is particularly suitable for pattern recognition in mixed driving scenarios. Compared with the traditional threshold judgment method, this solution greatly improves the robustness of driving feature extraction while maintaining the simplicity of the algorithm.

[0058] In one embodiment, the adjusting the mapping relationship between the accelerator pedal opening and the torque output so that the user's commonly used accelerator pedal opening range in the adjusted mapping relationship is consistent with the preset comfortable operation range includes:

[0059] The original mapping function f(x) is converted into a new mapping function g(x) through piecewise mapping, so that in the new mapping function g(x), a preset comfortable operation range corresponds to the torque output of the original mapping function f(x) in the user's commonly used accelerator pedal opening range.

[0060] The embodiment of the present application splits the original mapping function into multiple characteristic intervals for independent adjustment, which not only retains the torque response characteristics familiar to the driver, but also achieves precise sensitivity adjustment in the key operating range. This segmented processing strategy effectively balances the contradiction between control accuracy and computational efficiency, especially by maintaining the mapping relationship in the middle interval, avoiding the power output distortion problem caused by traditional global scaling.

[0061] In one embodiment, the calculation formula of the new mapping function g(x) is:

[0062]

[0063] Where x is the pedal opening, [x t1 ,x t2 ] is the accelerator pedal opening range commonly used by users, [x th1 ,x th2 ] is the preset comfortable operating range.

[0064] In the application, through the dynamic reconstruction function of the intelligent matching module, the corresponding relationship between the powertrain output torque and the accelerator pedal opening at the corresponding powertrain speed is dynamically adjusted through the above formula to generate a new accelerator pedal map, so that the current user's commonly used pedaling range is in the ideal range (40%-60%) in the new map.

[0065] In the embodiment of the present application, the proportional compression algorithm in the first interval can maintain the operation fineness in the low opening interval; the mapping interpolation algorithm in the second interval ensures the smooth transition in the common interval; and the extended mapping in the third interval maintains the power reserve under high load conditions. This three-segment function structure innovatively transforms the driving comfort requirements into strict mathematical constraint conditions, providing clear parameterized criteria for the engineering implementation of the control system.

[0066] In one embodiment, it further includes gradually adjusting the mapping parameters according to the time window Δt and smoothly transitioning to the adjusted mapping relationship.

[0067] The time window progressive adjustment mechanism in the embodiment of the present application can achieve a seamless switch between the old and new maps. By setting a reasonable time constant Δt, it not only ensures the real-time requirement for adjusting the control parameters but also avoids the driving discomfort caused by sudden adjustments. It is applicable to scenarios that need to balance the system response speed and driving smoothness. By introducing an inertia adjustment link, it effectively suppresses the overshoot phenomenon of the control system and significantly improves the torque control stability under complex working conditions.

[0068] In one embodiment, the gradually adjusting the mapping parameters according to the time window Δt and smoothly transitioning to the adjusted mapping relationship includes:

[0069] Within the time window Δt, adjust x t1 to x according to the time step Δx1 th1 , and adjust x t2 to x according to the time step Δx2 th2 ;

[0070] where, [x t1 , x t2 is the user's common accelerator pedal opening interval, and [x th1 , x th2 is the preset comfortable operation interval.

[0071] Taking the original accelerator pedal map of an aggressive user combined with Table 1 as an example:

[0072] Suppose the manufacturer initially sets the user's common operation comfortable interval to 40% - 60%, that is, x th1 = 40%, x th2 = 60%;

[0073] Identify the user's common accelerator pedal opening interval as 60% - 80%;

[0074] Set x t1 = 60%, x t2 = 80%,

[0075] After adjustment, when the user steps on the accelerator pedal to a new opening of 60%, the torque value corresponding to the original opening of 80% is actually called (for example, the torque at a speed of 4000 rpm is increased from 107 Nm to 191 Nm).

[0076] In the application, when optimizing the accelerator pedal map for conservative users, a specific example is described as follows:

[0077] First, by continuously monitoring the accelerator pedal opening signal, the distribution characteristics within a continuous driving cycle are statistically analyzed. When the data analysis module detects that more than 70% of the user's pedal operations are concentrated in the 0%-40% interval, it determines that the user belongs to the conservative driving type and triggers the map adjustment mechanism. At this time, the intelligent matching module expands and reconstructs the torque output relationship corresponding to the 0%-40% opening interval in the original map. Specifically, during implementation, according to the piecewise function mapping rule between the original mapping function f(x) and the new mapping function g(x) as described above, the 0%-40% common interval of the user's actual operation is mapped to the preset 40%-60% comfortable interval. This mapping relationship enables conservative users to obtain more refined torque control capabilities under the same physical pedal travel.

[0078] In the application, in the timer interrupt service program of the in-vehicle microcontroller, an incremental calculation task with a 10 ms period can be set. For the starting point x t1 and the ending point x t2 of the user's common interval, independent linear gradient models are established respectively. In each control cycle, the adjustment amount Δx1 of x t1 is dynamically determined by the ratio of the target difference (x th1 -x t1 ) to the remaining time window (Δt - t_elapsed), and an acceleration limiter is introduced to prevent step mutations.

[0079] In the application, it may also include: when it is detected that the vehicle has been in the idle state for more than 30 seconds, the system automatically solidifies the current map parameters and writes them into the EEPROM chip of the storage module, and preferentially loads this personalized setting when starting next time. The storage module adopts a paged storage technology, and the operation habit data of each user occupies an independent storage sector, and the user identity is automatically matched through the RFID signal of the vehicle key or the biometric recognition of the driver's seat pressure sensor.

[0080] In the embodiment of the present application, by independently setting x t1 and x t2The adjustment step size realizes the differentiated adjustment of key control variables: for example, a smaller step size can be used to ensure the adjustment accuracy of one, and a larger step size can be used to speed up the convergence of the other. This asymmetric adjustment mechanism innovatively solves the shortcomings of the traditional uniform step size algorithm in boundary condition processing, and is particularly suitable for the optimization of power system parameters with significant nonlinear characteristics.

[0081] In one embodiment, the vehicle can enter the vehicle intelligent accelerator pedal map mode in the following manner:

[0082] (1) Automatic entry through the vehicle's default settings;

[0083] (2) The user chooses to enter through the operation interface;

[0084] (3) The vehicle system prompts the user and after confirmation, the user chooses whether to enter;

[0085] (4) Linkage with other modes (such as after the user enters the vehicle's intelligent mode).

[0086] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0087] The present application also provides a vehicle torque output control device for executing the steps in the above vehicle torque output control method embodiment. The vehicle torque output control device can be a virtual appliance in an electronic device, which is run by a processor of the electronic device, or it can be the electronic device itself.

[0088] like Figure 3 As shown, the vehicle torque output control device 100 provided in the embodiment of the present application includes:

[0089] The data acquisition module 101 is used to collect vehicle driving parameters;

[0090] A data analysis module 102, configured to analyze a user's frequently used accelerator pedal opening range based on the vehicle driving parameters;

[0091] The intelligent matching module 103 is used to adjust the mapping relationship between the accelerator pedal opening and the torque output if the accelerator pedal opening range commonly used by the user is inconsistent with the preset comfortable operation range, so that the accelerator pedal opening range commonly used by the user in the adjusted mapping relationship is consistent with the preset comfortable operation range;

[0092] The control module 104 is used to perform torque output control based on the adjusted mapping relationship.

[0093] In application, the device dynamically adjusts the relationship between the accelerator pedal opening and the powertrain output torque at different vehicle speeds in combination with the user's usage habits. The device includes a data acquisition module 101 , a data analysis module 102 , an intelligent matching module 103 and a control module 104 .

[0094] The data acquisition module 101 is used to collect relevant information such as the vehicle powertrain speed, output torque, and accelerator pedal opening when the user steps on the vehicle accelerator pedal;

[0095] The data analysis module 102 is used to determine the user's frequently used accelerator pedal depression interval (for example, covering 70% of the user's concentrated depression interval) based on the relevant information collected by the aforementioned data collection module;

[0096] The intelligent matching module 103 is used to dynamically reconstruct the original accelerator pedal map when the user's usual accelerator pedal depression interval analyzed by the data analysis module is inconsistent with the common accelerator pedal depression interval set by the manufacturer by default, so that under the newly generated accelerator pedal map, the user's usual accelerator pedal depression interval is consistent with the common accelerator pedal depression interval set by the manufacturer by default.

[0097] In the specific implementation process, the data acquisition module can obtain the original signals of the powertrain speed sensor, the accelerator pedal displacement sensor and the drive motor torque sensor in real time through the integrated vehicle CAN bus interface, and use the sliding average filtering algorithm to pre-process the original data to eliminate the signal jitter caused by road bumps or sensor noise. The data analysis module has a built-in embedded processing unit, which aligns and fuses heterogeneous data with different sampling frequencies by establishing a timestamp synchronization mechanism to build a time series database in milliseconds. For the identification of user-common intervals, the system adopts a double verification mechanism: for example, first, an initial probability distribution histogram is generated based on the pedal opening data of 15 consecutive driving cycles, and after removing discrete points with a probability of less than 5%, a smooth curve is fitted through cubic spline interpolation; secondly, a dynamic threshold segmentation algorithm is introduced. When it is detected that the cumulative mileage of the same user exceeds 200 kilometers, the deep learning model is automatically triggered to extract features from the historical operation data and optimize the boundary accuracy of the interval division. The above is only an example and is not a limitation of the scheme recorded in the embodiments of this application.

[0098] In an application, when the intelligent matching module is implemented, it can adopt a hierarchical control architecture. The underlying driver layer manages the parameter update of the piecewise function through a real-time operating system, while the upper-layer application layer is responsible for logical judgment and exception handling. When it is detected that the user's common range deviates from the preset comfort zone, the control algorithm first creates a virtual mapping table in the memory, and non-linearly scales the torque output value of the original map according to the piecewise function rule. In specific implementation, for the high-frequency deep-pedal behavior of aggressive users, the system preferentially compresses the user's common accelerator pedal opening range. For example, the torque gradient in the 60%-80% opening range is set with an upper limit on the torque growth rate to avoid sudden power changes. For conservative users (such as the user's common accelerator pedal opening range is 0%-40%), an exponential amplification factor is introduced in the 0%-40% opening range, so that the torque increment corresponding to the same pedal stroke shows a progressive change.

[0099] In an application, during the mapping relationship adjustment process, the vehicle dashboard can also synchronously display a dynamic calibration progress bar. When the user actively steps on the brake pedal beyond the threshold, the system automatically pauses the parameter update to ensure driving safety.

[0100] In one embodiment, as Figure 4 shown, it further includes a storage module 104 for memorizing and storing the mapping relationship between the accelerator pedal opening and the torque output that matches different user operation habits.

[0101] In an application, the storage module 104 is used to store the corresponding versions of the accelerator pedal map, such as the factory map, the map matching the driving habit of user A, the map matching the driving habit of user B, etc., which can be called by different users or automatically matched after the system identifies the user.

[0102] The innovative advantage of the multi-user storage mechanism in the embodiments of this application lies in breaking through the limitations of single-user adaptation. By establishing a mapping database between user characteristics and map parameters, it not only realizes the rapid switching of personalized driving modes, but also provides a data basis for driving style migration in the vehicle networking environment. This technical feature extends the vehicle control system from single-driver adaptation to multi-user sharing scenarios, and through technologies such as biometric identification or account binding, it can support the intelligent driving needs in new vehicle usage modes such as family cars and shared cars.

[0103] In an application, each module in the vehicle torque output control device can be a software program module, can also be implemented by different logic circuits integrated in the processor, or can be implemented by multiple distributed processors.

[0104] As Figure 5 shown, the embodiments of this application also provide an electronic device 200, including: at least one processor 201 ( Figure 5Only one processor is shown), a memory 202, and a computer program 203 stored in the memory 202 and executable on at least one processor 201. When the processor 201 executes the computer program 203, the steps in the above method embodiments are implemented.

[0105] In applications, an electronic device may include, but is not limited to, a processor and a memory. Those skilled in the art can understand that Figure 5 merely an example of an electronic device, which does not constitute a limitation on the electronic device, and may include more or fewer components than shown in the figure, or combine certain components, or different components.

[0106] In applications, the processor may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0107] In applications, the memory may be an internal storage unit of the electronic device in some embodiments, such as the hard disk or memory of the electronic device. The memory may also be an external storage device of the electronic device in other embodiments, for example, a plug-in hard disk equipped on the electronic device, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory may also include both the internal storage unit and the external storage device of the electronic device. The memory is used to store an operating system, application programs, a boot loader, data, and other programs, such as the program code of a computer program. The memory may also be used to temporarily store data that has been output or will be output.

[0108] It should be noted that for the content such as information interaction and execution process between the above devices / units, since it is based on the same concept as the method embodiments of the present application, the specific functions and the technical effects brought by them can be specifically referred to in the method embodiment part, and will not be elaborated here.

[0109] Those skilled in the art can clearly understand that, for the convenience and conciseness of description, only the above division of each functional unit and module is used as an example. In practical applications, the above functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of this application. The specific working processes of the units and modules in the above system can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated here.

[0110] An embodiment of this application also provides a computer-readable storage medium storing a computer program, which when executed by a processor can implement the steps in each of the foregoing method embodiments.

[0111] An embodiment of this application provides a computer program product including a computer program, which when running on an electronic device enables the electronic device to implement the steps in each of the foregoing method embodiments.

[0112] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above embodiment methods of this application, a computer program can be used to instruct relevant hardware to complete. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps in each of the foregoing method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file or some intermediate form, etc. The computer-readable medium can at least include: any entity or device that can carry the computer program code to the device / electronic device, recording medium, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal, and software distribution medium. For example, a USB flash drive, a mobile hard disk, a magnetic disk, or an optical disc, etc. In some jurisdictions, according to legislation and patent practice, the computer-readable medium cannot be an electrical carrier signal and a telecommunication signal.

[0113] In the above embodiments, the descriptions of the respective embodiments each have their own emphasis. For parts not described in detail or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0114] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0115] In the embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of devices or units can be in electrical, mechanical or other forms.

[0116] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they can be located in one place, or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0117] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of each embodiment of this application, and should all be included in the protection scope of this application.

Claims

1. A vehicle torque output control method, characterized in that, include: Collect vehicle driving parameters; Analyzing the user's frequently used accelerator pedal opening range based on the vehicle driving parameters; If the user's commonly used accelerator pedal opening range is inconsistent with the preset comfortable operation range, adjusting the mapping relationship between the accelerator pedal opening and the torque output so that the user's commonly used accelerator pedal opening range in the adjusted mapping relationship is consistent with the preset comfortable operation range; Torque output control is performed based on the adjusted mapping relationship.

2. The vehicle torque output control method according to claim 1, characterized in that The collected vehicle driving parameters include vehicle speed, powertrain speed, output torque and corresponding accelerator pedal travel.

3. The vehicle torque output control method according to claim 1, wherein, The analyzing the user's frequently used accelerator pedal opening range based on the vehicle driving parameters includes determining the user's frequently used accelerator pedal opening range based on the probability distribution of the pedal stepping position marked by the accelerator pedal position signal.

4. The vehicle torque output control method according to claim 1, characterized in that, The adjusting the mapping relationship between the accelerator pedal opening and the torque output so that the user's commonly used accelerator pedal opening range in the adjusted mapping relationship is consistent with the preset comfortable operation range includes: The original mapping function f(x) is converted into a new mapping function g(x) through piecewise mapping, so that in the new mapping function g(x), a preset comfortable operation range corresponds to the torque output of the original mapping function f(x) in the user's commonly used accelerator pedal opening range.

5. The vehicle torque output control method according to claim 4, wherein, The calculation formula of the new mapping function g(x) is: where x is the pedal opening, [x t1 , x t2 is the range of accelerator pedal openings commonly used by the user, and [x th1 , x th2 is the preset comfortable operation range.

6. The vehicle torque output control method according to claim 1, wherein The method also includes gradually adjusting the mapping parameters according to the time window Δt to smoothly transition to the adjusted mapping relationship.

7. The vehicle torque output control method according to claim 6, wherein, The step of gradually adjusting the mapping parameters according to the time window Δt to smoothly transition to the adjusted mapping relationship includes: Within the time window Δt, x t1 is adjusted to x th1 with a time step of Δx1, and x t2 is adjusted to x th2 ; Among them, [x t1 , x t2 is the opening range of the accelerator pedal commonly used by the user, and [x th1 , x th2 is the preset comfortable operation range.

8. A vehicle torque output control device, characterized in that, include: A data acquisition module, used to collect vehicle driving parameters; A data analysis module, used for analyzing the user's frequently used accelerator pedal opening range based on the vehicle driving parameters; an intelligent matching module, configured to adjust a mapping relationship between an accelerator pedal opening and a torque output if the accelerator pedal opening range commonly used by the user is inconsistent with a preset comfortable operation range, so that the accelerator pedal opening range commonly used by the user in the adjusted mapping relationship is consistent with the preset comfortable operation range; A control module is used to perform torque output control based on the adjusted mapping relationship.

9. The vehicle torque output control device according to claim 8, characterized in that, It also includes a storage module for memorizing and storing a mapping relationship between an accelerator pedal opening and a torque output that matches the operating habits of different users.

10. An electronic device, characterized in that, The electronic device comprises a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the electronic device implements the method as claimed in any one of claims 1 to 7.

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