Four-wheel hub motor electric automobile intelligent steering control method

An electric vehicle and intelligent steering technology, which is applied to simulators, instruments, aerospace equipment, etc., can solve problems such as unsatisfactory steering characteristics of the driver, achieve high safety and stability of vehicle handling, and improve steering comfort

Active Publication Date: 2016-07-06
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Another object of the present invention is to solve the problem that the traditional steering mechanism cannot meet the steering characteristics of different drivers, and satisfy the steering characteristics of different types of drivers through driving force control, so as to realize the intelligent steering function of vehicles to people, and improve driving performance. Features of steering comfort for occupants

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  • Four-wheel hub motor electric automobile intelligent steering control method
  • Four-wheel hub motor electric automobile intelligent steering control method
  • Four-wheel hub motor electric automobile intelligent steering control method

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Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0056] The invention relates to an intelligent steering control method for a four-wheel hub motor electric vehicle, comprising the following steps:

[0057] 1. Experimental data collection and processing

[0058] Collect data that can reflect the driver's manipulation, including: steering wheel angle, steering wheel angular velocity, vehicle speed and yaw angular velocity, write an M program in Matlab to process the experimental data, and extract the characteristic data of the driver's steering, including: the maximum steering wheel angle , the maximum steering wheel angular velocity, the maximum yaw angular velocity and the vehicle speed at the maximum steering wheel. During the driving process of the driver, there may be situations where a steering does not meet the requir...

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Abstract

The invention discloses a four-wheel hub motor electric automobile intelligent steering control method. Drivers are classified by adopting a fuzzy C-mean clustering method; an RBF neural network is respectively established for the corresponding three driver types according to the driver types; expected transverse swing angle speed is determined correspondingly through corresponding types of the RBF neural networks according to different types of drivers; then a four-wheel hub motor electric automobile intelligent steering control model is established by utilizing fuzzy control; deviation of the expected transverse swing angle speed and actual transverse swing angle speed, deviation change rate and additional transverse swing moment are respectively converted into quantization levels in a fuzzy domain of discourse; and the fuzzy control model outputs the additional transverse swing moment, and the four wheels of an electric automobile are respectively controlled to perform steering according to the outputted additional transverse swing moment. The four-wheel hub motor electric automobile intelligent steering control method has characteristics of being high in automobile control safety and stability and can realize the function of intelligent steering of the automobile for people so as to enhance steering comfortableness of the drivers.

Description

technical field [0001] The invention relates to the technology in the field of automobile intelligent control, in particular to an intelligent steering control method for an electric vehicle with four-wheel hub motors. Background technique [0002] In today's society, cars have become an indispensable means of transportation in people's lives. With the development of science and technology and the improvement of people's living standards, people have higher and higher requirements for cars. Cars are no longer just ordinary means of transportation, but have risen to become a culture and a symbol. The importance of cars is self-evident. Metaphor. Safety, comfort, energy saving, and environmental protection are the direction and eternal theme of automobile development, especially in today's world where traffic accidents are increasing, energy is increasingly scarce, and the environment is deteriorating. Electronics, intelligence, electrification, and regeneration are effectiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B9/04
CPCG09B9/04
Inventor 李刚韩海兰李宁李高超
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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