Robust Controller and Construction Method for Automobile Chassis Integrated System

Abstract

The invention provides a robust controller of an automotive chassis integrated system and a construction method. The controller is composed of an internal model controller and a support vector machine generalized inverse system, wherein the internal model controller is composed of a side slip angle internal model controller body, a yaw velocity internal model controller body and a vehicle roll angle internal model controller body, the support vector machine generalized inverse system is in series connection with the automotive chassis integrated system to form a generalized pseudo-linear system, the support vector machine generalized inverse system is composed of a support vector machine and four linear links, the generalized pseudo-linear system comprises a side slip angle linear subsystem, a yaw velocity linear subsystem and a vehicle roll angle linear subsystem, and the automotive chassis integrated system is composed of an active front steering subsystem, a direct yaw moment control subsystem and an active suspension subsystem. According to the robust controller, the defects of control methods of existing automotive chassis integrated systems are eliminated, and the decoupling control among the side direction, the longitudinal direction and the vertical direction of the automotive chassis system can be achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering equipment, in particular to a robust controller and a construction method for an integrated system of an automobile chassis. Background technique [0002] With the continuous development and progress of science and technology, people have higher and higher requirements on the performance of automobiles. They hope that automobiles can have good maneuverability, driving comfort and active safety at the same time. Therefore, various active chassis control systems are successively applied to modern automobiles, such as electric power steering system, active suspension system, electronic stability control system, anti-lock braking system, etc. Generally speaking, these kinds of electronic control systems for automobile chassis are designed to improve a certain performance index. When they are used alone, they do not fully consider their influence on other subsystems in the automobile motion...

AI Technical Summary

Problems solved by technology

Generally speaking, these kinds of electronic control systems for automobile chassis are designed to improve a certain performance index. When they are used alone, they do not fully consider their influence on other subsystems in the automobile motion control system. Each subsystem has Due to certain limitations, in order to give full play to the correlation between the controllable subsystems, to optimize and further improve the overall performance of the vehicle, to coordinate various control subsystems comprehensively, and to study the integrated system of the automobile chassis and its control, it has become an important part of today's automobile chassis. One of the research hotspots and future development trends of system control technology

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