Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A Vehicle Stability Control Method Based on Tire Vertical Load Distribution

A technology of stability control and vertical load applied in the field of vehicle control

Inactive Publication Date: 2011-12-07
UNIV OF SHANGHAI FOR SCI & TECH
View PDF5 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at improving the autonomous safety of vehicles, and proposes a vehicle stability control method based on tire vertical load distribution. According to the complex nonlinear relationship between vertical load and tire cornering force, the main Dynamically regulate the vertical load distribution of the vehicle, and then control the nonlinear distribution of the lateral force of the tires, so as to provide a compensated yaw moment to control the yaw motion of the vehicle, and finally achieve the purpose of suppressing vehicle sideslip and improving vehicle stability

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
  • A Vehicle Stability Control Method Based on Tire Vertical Load Distribution
  • A Vehicle Stability Control Method Based on Tire Vertical Load Distribution
  • A Vehicle Stability Control Method Based on Tire Vertical Load Distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention adopts the magic tire model under the pure cornering condition, and the coupling relationship between the vertical load and the cornering force is as follows: figure 1 , the figure shows that as the vertical tire load increases, tires provide cornering force The slope gradually decreases. Using the vertical and lateral coupling mechanism of the tire, the vertical load distribution of the tire can be optimized through the active suspension control force, so the front and rear vertical load transfer will cause a cornering force difference between the front and rear tires, and then form a vehicle The yaw moment required for stable driving, such as figure 2 as shown, is the speed of the vehicle, is the side slip angle of the body center of mass, and are the longitudinal and lateral coordinate axes of the chassis coordinate system, respectively, is the center of mass of the vehicle, if the signs of the load increments of tires 1 and 4 are...

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 relates to a vehicle stability control method based on tire vertical loading distribution, and the method comprises the following steps: calculating status information and ideal status information of a vehicle by a whole vehicle model and a whole vehicle reference model; and then comparing vehicle information; and regulating and controlling the vehicle loading distribution by virtueof a driving force of a driving hanging bracket according to a complex nonlinear relationship between a vertical load and a tire lateral deviation force, thereby controlling the lateral force nonlinear distribution of a tire, providing a compensated yawing moment to control the yawing motion of the vehicle, and finally achieving the purposes of restraining the side slipping of the vehicle and promoting the vehicle stability. The invention provides a new solution for controlling the stability of the vehicle.

Description

technical field [0001] The invention relates to a vehicle control technology, in particular to a vehicle stability control method based on tire vertical load distribution. Background technique [0002] Vehicle stability control has always been a hot topic in vehicle active safety research. Generally speaking, vehicle motion stability can be controlled through the active intervention of the braking system or steering system on vehicle yaw motion and roll motion to improve active safety. the goal of. [0003] Generally speaking, there are currently two types of vehicle stability control algorithms in the electronic control system of the automobile chassis. One is to control the yaw motion of the vehicle through the steering system to adjust the tire cornering force to control the vehicle's yaw motion to suppress tire sideslip and achieve the purpose of improving vehicle stability. Minimize the side slip angle of the center of mass and good transient response characteristics o...

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): B60W30/02B60W40/10
Inventor 孙涛徐桂红柴陵江
Owner UNIV OF SHANGHAI FOR SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com