Control method of automobile active suspension system

A technology of active suspension and control method, applied in the direction of suspension, elastic suspension, vehicle components, etc., to achieve the effect of improving handling stability and improving economy

Active Publication Date: 2019-08-02
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing research results usually only consider the influence of one or two factors,

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Control method of automobile active suspension system
  • Control method of automobile active suspension system
  • Control method of automobile active suspension system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following technical solutions in the present invention are clearly and completely described. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] A method for controlling an active suspension system of an automobile, such as figure 1 shown, where m u represents the unsprung mass, m s is the sprung mass; z r Indicates the input displacement of the road, z u and z s represent the displacements of the unsprung mass and the sprung mass, respectively; u(t-h(t)) represents the control input of the active suspension system with time-varying delay h(t); k s and c s represent the stiffness and damping ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a control method of an automobile active suspension system. The control method includes the following steps that an active suspension system model of automobile wheels is established, according to the model, a dynamic differential equation of the vehicle active suspension system is established, and a state space equation of the vehicle active suspension system is obtained, in consideration of the uncertainty of the system, a controller of the active suspension system under the disturbance condition is designed, and substituted into a simulation system to be subjected toa simulation test, and thus the performance of the designed controller is verified. According to the control method of the automobile active suspension system, the output feedback H<infinite> controller considers the condition of total four factors including the system parameter uncertainty, the actuator delay, the road surface unevenness disturbance and the sensor measurement output disturbance,the active suspension system is controlled, and the controller has the wider adaptability.

Description

technical field [0001] The invention belongs to the technical field of automobile braking, and in particular relates to a method for controlling an automobile by using an active suspension system controller. Background technique [0002] Active suspension system, also known as active guidance suspension system, dynamic variable suspension system, etc., can control the height of the vehicle body by changing the height, shape and damping of the suspension system, which can mainly improve the vehicle's operating stability and ride comfort. Uncertainty of the model parameters of the active suspension system, actuator input delays, road input disturbances, measured output disturbances, etc. are all synchronized. [0003] Active suspension systems have a significant impact on vehicle stability and drivability. The active suspension system is faced with the influence of factors such as system parameter uncertainty, input delay of the execution structure, input disturbance of uneve...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B60G17/015G06F17/50
CPCB60G17/015G06F30/15G06F30/20
Inventor 何平范焘王奎洋
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap