Main loop-servo loop double closed loop controller of vehicle ESC system

A controller and double closed-loop technology, applied in the direction of control devices, etc., can solve the problem of clear control algorithm structure, achieve the effect of clear structure and reduce difficulty

Pending Publication Date: 2021-12-21
BEIJING INSTITUTE OF TECHNOLOGYGY
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is no controller in the prior art that can make the control algorithm structure clear, easy to maintain,

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
  • Main loop-servo loop double closed loop controller of vehicle ESC system
  • Main loop-servo loop double closed loop controller of vehicle ESC system
  • Main loop-servo loop double closed loop controller of vehicle ESC system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] The purpose of the present invention is to provide a main loop-servo loop dual closed-loop controller of a vehicle ESC system that has a clear control algorithm structure, is easy to maintain, and is beneficial to algorithm integration, function expansion and upgrade.

[0059] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunc...

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 main loop-servo loop double closed loop controller of a vehicle ESC system. A main ring controller in the main ring-servo ring double closed-loop controller mainly solves the problem of additional yawing moment decision on a vehicle (controlled object) level so as to realize reasonable regulation and control of vehicle motion conditions. A servo loop controller mainly adjusts the longitudinal slip rate of corresponding wheels through an actuator so as to achieve the control target of a main loop. The main ring-servo ring double closed-loop controller mainly has the following advantages: 1) the structure of a control algorithm is clear, the nonlinear characteristics of tires are not considered when the main ring controller is designed, and the horizontal resultant force of a vehicle is regarded as the control input of a vehicle ESC system, so that the difficulty of control design is reduced; and 2) the non-linear characteristics of the tire which are difficult to process are considered in the optimal distribution of the servo ring tire force, and various limiting conditions including tire-ground attachment and actuator state are considered in the tire force distribution.

Description

technical field [0001] The invention relates to the field of vehicle control, in particular to a main loop-servo loop double closed-loop controller of a vehicle ESC system. Background technique [0002] One of the typical implementations of the vehicle dynamics stability control system is the direct yaw moment control (DYC) method. Direct yaw moment control refers to changing the distribution of the longitudinal braking force or driving force of the left and right wheels of the vehicle, and using the difference in the longitudinal force of the tires on both sides to generate an appropriate yaw moment to control the yaw motion and lateral motion of the vehicle. . The research on this control method mainly began in the early 1990s with the Japanese scholar Shibahata's discussion on the nonlinear relationship between the side slip angle of the vehicle body and the stable yaw moment of the vehicle. Germany's Bosch developed the electronic stability program system (Electronic S...

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): B60W30/02B60W40/06B60W40/112B60W50/00
CPCB60W30/02B60W40/06B60W40/112B60W50/00B60W2050/0019B60W2050/0031B60W2710/18
Inventor 王伟达杨超王玮琪张为刘金刚张中国
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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