Fuzzy control method for automatic gearbox

A technology of automatic transmission and fuzzy control, applied in the direction of transmission control, components with teeth, belt/chain/gear, etc., can solve the problems of not being able to meet driving wishes, not fully considering the influence of driver's wishes, etc.

Active Publication Date: 2012-06-27
WUHU WANLIYANG TRANSMISSION CO LTD
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Problems solved by technology

The traditional basic shift schedules mainly include single-parameter, two-parameter and three-parameter shift schedules, which only reflect the basic driving state of the car, and do not fully consider the

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  • Fuzzy control method for automatic gearbox
  • Fuzzy control method for automatic gearbox
  • Fuzzy control method for automatic gearbox

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Embodiment Construction

[0018] Below with reference to the accompanying drawings, through the description of the implementation examples, the specific embodiments of the present invention, such as the shape, structure, mutual position and connection relationship between each part, the role and working principle of each part, etc., will be further described. detailed description of the .

[0019] 2. If figure 1 , the core of the automatic transmission fuzzy control method of the present invention is the fuzzy control module and gear arbitration. The fuzzy control module mainly includes fuzzification, fuzzy rules and defuzzification. The automatic transmission controller (TCU) performs signal processing according to driver actions such as accelerator opening and braking and vehicle information such as vehicle speed, engine speed, atmospheric pressure, etc., determines the fuzzy subset and domain, and then enters the fuzzy control module. The power index DSI is calculated, and the gear arbitration alg...

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Abstract

The invention aims to provide a fuzzy control method for an automatic gearbox, which comprehensively considers the will of a driver and automobile driving cycle. The fuzzy control method includes the steps of acquiring driver action information and vehicle information, performing fuzzy control, arbitrating gears and the like. The fuzzy control method has the advantages that the will of the driver and automobile driving cycle information are fuzzified, the automatic gearbox automatically recognizes the will of the driver and an automobile driving environment under the current driving cycle, multi-parameter dynamic fuzzy control is introduced, the fuzzy control method is applicable to the optimal process of power shift under complicated working conditions, and the process of power shift based on an expert system is directly obtained by means of defuzzification by using fuzzy rules formed by driving experience and an expert knowledge base.

Description

technical field [0001] The invention relates to the technical field of automobile design, in particular to a fuzzy control method for an automatic transmission. Background technique [0002] Shift control strategy is the key technology of automobile automatic transmission control. With the continuous development of control technology, the shift control strategy of automatic transmission is also developing from classic transmission control to modern control. The traditional basic shift schedules mainly include single-parameter, two-parameter and three-parameter shift schedules, which only reflect the basic driving state of the car, and do not fully consider the driver's will, special driving conditions, and the impact of the road and the environment on the shift timing. impact, it cannot satisfy the driving desire under most working conditions or even unacceptable. Contents of the invention [0003] The purpose of the present invention is to propose a fuzzy control method...

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Application Information

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IPC IPC(8): F16H59/24F16H59/54F16H59/36F16H59/62
Inventor 巩翔宇王洪苗
Owner WUHU WANLIYANG TRANSMISSION CO LTD
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