Gear shift control method, vehicle and storage medium

Abstract

The present application relates to a shift control method, a vehicle and a storage medium, wherein the control method includes: obtaining the target object's emotional index value and shift parameters during the historical shift process; determining the target object's driving style based on the emotional index value and the shift parameters; and adjusting the shift parameters during the current shift process based on the driving style. The shift control method, vehicle and storage medium provided by the present application can accurately identify the driver's driving style through the driver's emotional changes and shift parameters during the shift process, and flexibly adjust the shift parameters based on the driving style to enhance the driving experience.

Description

Technical Field

[0001] The present application belongs to the field of automobile technology, and in particular, relates to a gear shift control method, a vehicle and a storage medium. Background Art

[0002] In recent years, major automobile developers have been promoting the improvement of user experience; however, user experience is a relatively subjective feeling, which varies from person to person and is closely related to the user's behavior habits, preferences, knowledge structure, industry background, etc. The user experience that truly meets user expectations is not stereotyped, it must vary with different customer characteristics. Therefore, finding a user experience that meets the characteristics of a specific user must be of great practical significance, realizing "the one that suits him is the best."

[0003] When users use automatic transmission cars, some users have an aggressive driving style, pursue rapid power response, have a high tolerance for the smoothness of the gear shifting process, and can accept a certain degree of impact or setbacks; while some users have a relatively gentle driving style, have extremely high requirements for smoothness, and have a certain tolerance for rapid power response. If the performance of the whole vehicle is consistent with the user's expectations, the user will show positive or optimistic emotional changes. If the performance of the whole vehicle does not meet the user's wishes, the user will show negative or pessimistic emotional changes. How to accurately identify the driver's driving style and adjust the gear shift parameters according to the driving style to improve the driving experience has become an urgent problem to be solved. Summary of the invention

[0004] In response to the above technical problems, the present application provides a gear shift control method, a vehicle and a storage medium to improve the recognition accuracy of driving style and enhance the driving experience.

[0005] The present application provides a gear shift control method, including: obtaining an emotional index value and a gear shift parameter of a target object during a historical gear shift process; determining the driving style of the target object based on the emotional index value and the gear shift parameter; and adjusting the gear shift parameter in a current gear shift process based on the driving style.

[0006] In one embodiment, obtaining the emotional index value of the target object during the historical gear shifting process includes: obtaining at least one of the physiological parameters, facial expressions, body movements and voice information of the target object during the historical gear shifting process; determining the emotional index value of the target object based on at least one of the physiological parameters, facial expressions, body movements and voice information.

[0007] In one embodiment, the gear shifting parameters include the duration of the engine torque control phase, the duration of the engine speed control phase, the total gear shifting duration, and the vehicle acceleration change rate.

[0008] In one embodiment, the step of determining the driving style of the target object based on the emotion index value and the gear shift parameter includes: if the emotion index value increases with a decrease in any one of the engine torque control phase duration, the engine speed control phase duration and the total gear shift duration, and / or decreases with an increase in any one of the engine torque control phase duration, the engine speed control phase duration and the total gear shift duration, then the driving style of the target object is aggressive; if the emotion index value decreases with an increase in the vehicle acceleration change rate, and / or increases with a decrease in the vehicle acceleration change rate, then the driving style of the target object is peaceful.

[0009] In one embodiment, the step of adjusting the shift parameters in the current shift process according to the driving style includes: if the driving style of the target object is aggressive, reducing at least one of the engine torque control phase duration, the engine speed control phase duration and the total shift duration; if the driving style of the target object is moderate, reducing the vehicle acceleration change rate.

[0010] In one embodiment, the step of adjusting the shift parameters in the current shift process according to the driving style includes: adjusting the vehicle acceleration change rate by changing the clutch engagement rate; wherein the vehicle acceleration change rate is inversely proportional to the clutch engagement rate.

[0011] In one embodiment, the step of adjusting the shift parameters in the current shift process according to the driving style includes: determining target shift parameters according to the driving style; and adjusting the shift parameters in the current shift process to the target shift parameters.

[0012] In one embodiment, the step of determining the target shift parameters according to the driving style includes: if the driving style is aggressive, the minimum value of the engine torque control phase duration in the historical shift process is used as the target duration of the engine torque control phase, and the minimum value of the engine speed control phase duration is used as the target duration of the engine speed control phase; if the driving style is peaceful, the minimum value of the vehicle acceleration change rate in the historical shift process is used as the target value of the vehicle acceleration change rate.

[0013] The present application also provides a vehicle, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above-mentioned control method when executing the computer program.

[0014] The present application also provides a storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above control method are implemented.

[0015] The present application provides a gear shift control method, a vehicle, and a storage medium, which can accurately identify the driver's driving style through the driver's emotional changes and gear shift parameters during the gear shift process, and flexibly adjust the gear shift parameters according to the driving style to enhance the driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a flowchart of the control method provided in Example 1 of the present application;

[0017] Figure 2 It is a schematic diagram of the structure of the vehicle provided in Example 2 of the present application. DETAILED DESCRIPTION

[0018] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. "And / or" used herein includes any and all combinations of one or more related listed items.

[0019] Figure 1 Schematic diagram of the control method provided in Example 1 of the present application. Figure 1 As shown, the control method of the present application may include the following steps:

[0020] Step S101: obtaining the target object's emotion index value and gear shifting parameters during the historical gear shifting process;

[0021] In one embodiment, obtaining the emotional index value of the target object during the historical gear shift process includes:

[0022] Acquire at least one of physiological parameters, facial expressions, body movements, and voice information of the target object during the historical gear shifting process;

[0023] Determine the emotional index value of the target object according to at least one of physiological parameters, facial expressions, body movements and voice information.

[0024] Optionally, physiological parameters including respiratory rate, blood pressure, body temperature, etc. can be collected through wearable terminals, such as smart bracelets, smart watches, etc.; facial expressions and body movements can be collected through vehicle-mounted cameras; voice information can be collected through vehicle-mounted audio equipment.

[0025] Optionally, the vehicle obtains physiological parameters collected by the wearable terminal, facial expressions and body movements collected by the vehicle-mounted camera, and voice information collected by the vehicle-mounted audio equipment, and conducts a comprehensive analysis of the physiological parameters, facial expressions, body movements and voice information to obtain an emotion index value; wherein the emotion indicator value includes positive and negative values, negative values ​​represent negative emotions, and positive values ​​represent positive emotions. The larger the emotion indicator value, the more positive the emotion represented, and the smaller the emotion indicator value, the more negative the emotion represented.

[0026] Optionally, the gear shifting parameters include the duration of the engine torque control phase, the duration of the engine speed control phase, the total gear shifting duration, and the vehicle acceleration change rate.

[0027] Among them, the engine torque control stage and the engine speed control stage are two different stages of the gear shifting process of automatic transmission vehicles; the total gear shifting time = engine torque control stage time + engine torque control stage time; the engine torque control stage time represents the crispness of the gear shifting; the engine speed control stage time represents the rapidity of the gear shifting, and the total gear shifting time represents the speed of the gear shifting; the vehicle acceleration change rate represents the smoothness of the gear shifting.

[0028] Step S102: determining the driving style of the target object according to the emotion index value and the gear shift parameter;

[0029] In one embodiment, step S102 includes:

[0030] If the emotion index value increases with a decrease in any one of the engine torque control phase duration, the engine speed control phase duration, and the total gear shift duration, and / or decreases with an increase in any one of the engine torque control phase duration, the engine speed control phase duration, and the total gear shift duration, then the target subject's driving style is an aggressive type;

[0031] If the emotion index value decreases with an increase in the vehicle acceleration change rate, and / or increases with a decrease in the vehicle acceleration change rate, the target object's driving style is a peaceful type.

[0032] Specifically, if the emotion index value increases with the decrease of any one of the engine torque control phase duration, the engine speed control phase duration and the total gear shifting duration, and / or decreases with the increase of any one of the engine torque control phase duration, the engine speed control phase duration and the total gear shifting duration, then the target object has high requirements for the dynamic responsiveness of the gear shifting process, and it can be determined that the driving style of the target object is aggressive; if the emotion index value decreases with the increase of the vehicle acceleration change rate, and / or increases with the decrease of the vehicle acceleration change rate, then the target object has high requirements for the smoothness of the gear shifting process, and it can be determined that the driving style of the target object is peaceful.

[0033] Step S103: adjusting the gear shifting parameters in the current gear shifting process according to the driving style.

[0034] In one embodiment, step S103 includes:

[0035] If the target object's driving style is aggressive, reducing at least one of the engine torque control phase duration, the engine speed control phase duration, and the total shifting duration;

[0036] If the target person's driving style is calm, the vehicle acceleration rate is reduced.

[0037] Optionally, the shift parameters in the current shift process are calculated based on parameters such as the accelerator pedal opening, the accelerator pedal movement speed, etc. If the driving style of the target object is aggressive, then on the basis of the shift parameters of the current shift process, at least one of the engine torque control phase duration, the engine speed control phase duration and the total shift duration is further reduced to make the shift parameters match the aggressive driving style; if the driving style of the target object is moderate, then on the basis of the shift parameters of the current shift process, the vehicle acceleration change rate is further reduced to make the shift parameters match the moderate driving style.

[0038] Optionally, the vehicle acceleration rate is adjusted by changing the clutch engagement rate; wherein the vehicle acceleration rate is inversely proportional to the clutch engagement rate.

[0039] For example, if the target object's driving style is aggressive, the engine torque control phase duration is reduced by 10% by calibrating the engine torque interaction time, and the engine speed control phase duration is reduced by 5% by reducing the calibration of the engine torque value; if the target object's driving style is moderate, the vehicle acceleration change rate is reduced by 10% by changing the clutch engagement rate.

[0040] In one implementation, step S103 further includes:

[0041] Determine target shift parameters based on driving style;

[0042] Adjust the gear shift parameters in the current gear shift process to the target gear shift parameters.

[0043] In one embodiment, determining the target shift parameter according to the driving style includes:

[0044] If the driving style is aggressive, the minimum value of the engine torque control phase duration in the historical gear shift process is used as the target duration of the engine torque control phase, and the minimum value of the engine speed control phase duration is used as the target duration of the engine speed control phase; the target value of the total gear shift duration = the minimum value of the engine torque control phase + the minimum value of the engine speed control phase; the target value of the vehicle acceleration change rate is the vehicle acceleration change rate that matches the minimum value of the engine torque control phase, the minimum value of the engine speed control phase, and the target value of the total gear shift duration;

[0045] If the driving style is peaceful, the minimum value of the vehicle acceleration change rate during the historical gear shifting process will be used as the target value of the vehicle acceleration change rate; the target value of the total gear shifting time, the target duration of the engine torque control phase, and the target duration of the engine speed control phase will be the total gear shifting time, the engine torque control phase duration, and the engine speed control phase duration that match the target value of the vehicle acceleration change rate, respectively.

[0046] In one embodiment, determining the target shift parameter according to the driving style further includes:

[0047] If the driving style is aggressive, the gear shift parameter corresponding to the maximum emotion representation value under the aggressive style is used as the target gear shift parameter;

[0048] If the driving style is peaceful, the gear shift parameter corresponding to the maximum emotion representation value under the peaceful style is used as the target gear shift parameter.

[0049] The control method provided in the first embodiment of the present application obtains the emotional index value and the gear shifting parameters of the target object in the historical gear shifting process; determines the driving style of the target object based on the emotional index value and the gear shifting parameters; and adjusts the gear shifting parameters in the current gear shifting process based on the driving style. It not only accurately identifies the driver's driving style, but also flexibly adjusts the gear shifting parameters based on the driving style, thereby effectively improving the driving experience.

[0050] Figure 2 1 is a schematic diagram of the structure of the vehicle provided in the second embodiment of the present application. The vehicle of the present application includes: a processor 110, a memory 111, and a computer program 112 stored in the memory 111 and executable on the processor 110. When the processor 110 executes the computer program 112, the steps in the above-mentioned control method embodiments are implemented, for example Figure 1 Steps S101 to S103 are shown.

[0051] The vehicle may include, but is not limited to, a processor 110 and a memory 111. Those skilled in the art will appreciate that Figure 2It is only an example of a vehicle and does not constitute a limitation of the vehicle. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the vehicle may also include input and output devices, network access devices, buses, etc.

[0052] The processor 110 may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc.

[0053] The memory 111 may be an internal storage unit of the vehicle, such as a hard disk or memory of the vehicle. The memory 111 may also be an external storage device of the vehicle, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the vehicle. Furthermore, the memory 111 may also include both an internal storage unit and an external storage device of the vehicle. The memory 111 is used to store the computer program and other programs and data required by the vehicle. The memory 111 may also be used to temporarily store data that has been output or is to be output.

[0054] The present application also provides a storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the control method described above are implemented.

[0055] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.

[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A gear shift control method, characterized in that: include: Obtaining the target object's emotional index value and gear shift parameters during the historical gear shift process, wherein the gear shift parameters include the duration of the engine torque control phase, the duration of the engine speed control phase, the total gear shift duration, and the vehicle acceleration change rate; determining the driving style of the target object according to the emotion index value and the gear shift parameter; adjusting a shift parameter in a current shift process according to the driving style; The step of determining the driving style of the target object according to the emotion index value and the gear shift parameter comprises: If the emotion index value increases with a decrease in any one of the engine torque control phase duration, the engine speed control phase duration, and the total gear shift duration, and / or decreases with an increase in any one of the engine torque control phase duration, the engine speed control phase duration, and the total gear shift duration, then the driving style of the target object is an aggressive type; If the emotion index value decreases as the vehicle acceleration change rate increases, and / or increases as the vehicle acceleration change rate decreases, then the target object's driving style is a peaceful type.

2. The control method according to claim 1, characterized in that: Get the emotional index value of the target object during the historical shift process, including: Acquire at least one of the physiological parameters, facial expressions, body movements and voice information of the target object during the historical gear shifting process; Determine the emotion index value of the target object according to at least one of the physiological parameter, the facial expression, the body movement and the voice information.

3. The control method according to claim 1, characterized in that: The step of adjusting the shift parameters in the current shift process according to the driving style comprises: If the target object has an aggressive driving style, reducing at least one of the engine torque control phase duration, the engine speed control phase duration, and the total shifting duration; If the target object's driving style is a peaceful type, the vehicle acceleration change rate is reduced.

4. The control method according to claim 1, characterized in that: The step of adjusting the shift parameters in the current shift process according to the driving style comprises: adjusting the rate of change of vehicle acceleration by varying a clutch engagement rate; Wherein, the vehicle acceleration change rate is inversely proportional to the clutch engagement rate.

5. The control method according to claim 1, characterized in that: The step of adjusting the shift parameters in the current shift process according to the driving style comprises: determining target shift parameters according to the driving style; The gear shifting parameters in the current gear shifting process are adjusted to the target gear shifting parameters.

6. The control method according to claim 5, characterized in that: The step of determining the target shift parameter according to the driving style comprises: If the driving style is aggressive, the minimum value of the engine torque control phase duration in the historical gear shifting process is used as the target duration of the engine torque control phase, and the minimum value of the engine speed control phase duration is used as the target duration of the engine speed control phase; If the driving style is a peaceful type, the minimum value of the vehicle acceleration change rate during the historical gear shifting process is used as the target value of the vehicle acceleration change rate.

7. A vehicle, characterized in that: The vehicle includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the control method according to any one of claims 1 to 6 when executing the computer program.

8. A storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the control method according to any one of claims 1 to 6 are implemented.

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