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Method and device of gear shift control

A fuzzy, membership function technology, applied in transmission control, components with teeth, belts/chains/gears, etc., can solve problems such as inaccurate timing of vehicle shifting, mechanical wear and energy loss, and avoid Effects of mechanical wear and energy loss, accurate shifting operation

Active Publication Date: 2014-06-11
WUHU WANLIYANG TRANSMISSION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the traditional shift control method for vehicles equipped with automatic transmissions, only the degree of depression of the accelerator pedal and the current speed of the vehicle are considered to select the shift point, so the timing of the shift will be inaccurate , and unnecessary mechanical wear and energy loss

Method used

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  • Method and device of gear shift control
  • Method and device of gear shift control
  • Method and device of gear shift control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The embodiment of the present invention provides a method for shift control, such as figure 1 As shown, the specific steps are:

[0047] 101: Obtain the target gear according to the degree of depression of the accelerator pedal and the current speed of the vehicle;

[0048] 102: Correct the target gear position according to the theoretical acceleration value, actual acceleration value and driving resistance value, and obtain the corrected target gear position;

[0049] 103: Control the shifting operation according to the current gear and the corrected target gear.

[0050] In the method provided by the embodiment of the present invention, the target gear is corrected according to the theoretical acceleration value, the actual acceleration value and the driving resistance value, the corrected target gear is obtained, and the current gear is compared with the corrected target gear As a result, the shifting operation is controlled, so that the vehicle equipped with an au...

Embodiment 2

[0052] The embodiment of the present invention provides a method for shift control, such as figure 2 As shown, the specific steps are:

[0053] 201: Obtain the target gear;

[0054] Here, the description is made by taking the acquisition of the target gear according to the degree of depression of the accelerator pedal and the vehicle speed as an example, and the method for acquiring the target gear is not limited in the embodiments of the present invention.

[0055] Such as image 3 As shown, the abscissa is the vehicle speed value, and the ordinate is the value of the degree of depression of the accelerator pedal. According to the degree of depression of the accelerator pedal and the value of the vehicle speed, the target gear is obtained, and the target gear is corrected for the subsequent consideration of the fuzzy degree of driving resistance. Reference. This step is a specific implementation manner of step 101 in Embodiment 1. Step 101 in Embodiment 1 may also be impl...

Embodiment 3

[0113] An embodiment of the present invention provides a device for determining the corrected target gear, see Figure 4 ,include:

[0114] Calculation module 301, used for acquiring the target gear according to the degree of depression of the accelerator pedal and the current vehicle speed of the vehicle;

[0115] A processing module 302, configured to correct the target gear according to the theoretical acceleration value, the actual acceleration value and the running resistance value, to obtain the corrected target gear;

[0116] The control module 303 is used to control the shifting operation according to the current gear and the corrected target gear obtained by the processing module 302 .

[0117] Wherein, the processing module 302, such as Figure 5 shown, including:

[0118] The first processing unit 3021 is configured to obtain a theoretical acceleration value, perform fuzzy processing on the theoretical acceleration value, and obtain a fuzzy membership function va...

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Abstract

The invention discloses a method and a device of gear shift control, belonging to the field of automobiles. The method of gear shift control comprises amending the target gear position according to the theory acceleration value, the actual acceleration value and the driving resistance value, thus the amended target gear position is obtained; and controlling the gear shift operation according to the result after comparision between the current gear position and the amended target gear position, thus automobiles on which automatic transmissions are installed can accurately recognize intentions and actual working conditions of drivers, and perform gear shift operation accurately, and unnecessary mechanical abrasion and energy source loss are avoided.

Description

technical field [0001] The invention relates to the field of automobiles, in particular to a method and device for shift control. Background technique [0002] With the development of the automobile industry, the convenience of vehicle driving has been paid more and more attention to by drivers, and more and more vehicles equipped with automatic transmissions have replaced vehicles equipped with manual transmissions. Vehicles equipped with automatic transmissions do not require the driver to perform manual shift operations. During driving, the vehicle will select the appropriate vehicle speed as the shift point according to the driver's intention to control the shift operation. [0003] The selection of the shift point in the current general shift control method is calculated according to the degree of depression of the accelerator pedal by the driver and the current speed of the vehicle. [0004] In the process of realizing the present invention, the inventors have found t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H61/02F16H59/18F16H59/44
Inventor 饶宇倪斌
Owner WUHU WANLIYANG TRANSMISSION CO LTD