An Integrated Control Method for Distributed Control of Electric Vehicle Stability

Abstract

The invention discloses an integrated control method for distributed control of an electric automobile. The integrated control method comprises the following steps of according to automobile speed, a steering wheel rotating angle and a steering wheel rotating angular speed, obtaining an expected yaw angular speed and an expected mass center sideslip angle by a signal processing layer by referring to a module; in an integrated control layer, according to the actual value of the yaw angular speed and the expected yaw angular speed, deciding a rear wheel additional yaw torque required for realizing control of the stability of the automobile; according to the actual valve of the mass center sideslip angle and the expected mass center sideslip angle, deciding the front wheel additional rotating angle required for realizing control of the stability of the automobile; in a control distribution layer, according to a target driving torque of a driver and the rear wheel additional yaw torque, reasonably distributing four-wheel driving force, and according to a target front wheel rotating angle of the driver and the front wheel additional rotating angle, correcting the front wheel rotating angle; and controlling the yaw stability by an executing layer through a hub motor. The integrated control method disclosed by the invention has the characteristics that the handling safety stability of the automobile is high, and the steering comfortability of the driver is improved.

Description

technical field [0001] The invention relates to the technology in the field of automobile intelligent control, in particular to an integrated control method for distributed control of electric vehicle stability. 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 effective measu...

AI Technical Summary

Problems solved by technology

[0005] The present invention designs and develops an integrated control method for distributed control of the stability of electric vehicles. One of the purposes of the present invention is to solve the problem that the traditional steering mechanism cannot satisfy the poor stability of electric vehicles.

[0006] The second object of the present invention is to solve the problem of driving stability of electric vehicles when turning or when there is lateral displacement

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