On-board-tire-model reference control for cooperation of 4WS and direct yaw moment control for improving limit performance of vehicle handling Yoshimi Furukawa (Honda R & D), Masato Abe (Kanagawa Institute of Technology)

JSAE Review ◽  
1997 ◽  
Vol 18 (2) ◽  
pp. 189
Keyword(s):  
Tire Model ◽  
Model Reference ◽  
Vehicle Handling ◽  
Direct Yaw Moment Control ◽  
Model Reference Control ◽  
Yaw Moment Control ◽  
Moment Control ◽  
Institute Of Technology ◽  
Yaw Moment

Vehicle direct yaw moment control system based on the improved linear quadratic regulator

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Xianyi Xie ◽  
Lisheng Jin ◽  
Guo Baicang ◽  
Jian Shi
Keyword(s):  
Linear Quadratic Regulator ◽  
Objective Evaluation ◽  
Linear Quadratic ◽  
Vehicle Handling ◽  
Content Type ◽  
The Road ◽  
Direct Yaw Moment Control ◽  
Yaw Moment Control ◽  
Moment Control ◽  
Yaw Moment

Purpose This study aims to propose an improved linear quadratic regulator (LQR) based on the adjusting weight coefficient, which is used to improve the performance of the vehicle direct yaw moment control (DYC) system. Design/methodology/approach After analyzing the responses of the side-slip angle and the yaw rate of the vehicle when driving under different road adhesion coefficients, the genetic algorithm and fuzzy logic theory were applied to design the parameter regulator for an improved LQR. This parameter regulator works according to the changes in the road adhesion coefficient between the tires and the road. Hardware-in-the-loop (HiL) tests with double-lane changes under low and high road surface adhesion coefficients were carried out. Findings The HiL test results demonstrate the proposed controllers’ effectiveness and reasonableness and satisfy the real-time requirement. The effectiveness of the proposed controller was also proven using the vehicle-handling stability objective evaluation method. Originality/value The objective evaluation results reveal better performance using the improved LQR DYC controller than a front wheel steering vehicle, especially in reducing driver fatigue, improving vehicle-handling stability and enhancing driving safety.

Direct Yaw Moment Control for Motorized Wheel Electric Vehicles

2001 ◽  
Author(s):  
Avesta Goodarzi ◽  
Ebrahim Esmailzadeh ◽  
G. R. Vossoughi
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Considerable Improvement ◽  
Control Law ◽  
Traction Control ◽  
Vehicle Handling ◽  
Direct Yaw Moment Control ◽  
Yaw Moment Control ◽  
Moment Control ◽  
Yaw Moment

Abstract A new control law for direct yaw moment control of an electric vehicle is developed. Although this study is considered as part of a global control system for the traction control of a four motorized wheel electric vehicle, but the results of this study is quite general and can be applied to other types of vehicles. The dynamic model of the system has been analyzed and, in accordance with the optimal control theory, an optimal controller is designed. Two different versions of the control law have been considered and the performance of each version has been separately studied and compared with each other. Finally, the numerical simulation of the vehicle-handling model with and without the use of the optimal yaw moment controller has been carried out. Results obtained indicate that considerable improvement in the vehicle handling has been achieved when the optimal yaw moment controller is engaged.

Innovative Active Vehicle Safety Using Integrated Stabilizer Pendulum and Direct Yaw Moment Control

2014 ◽  
Vol 136 (5) ◽  
Author(s):  
Avesta Goodarzi ◽  
Fereydoon Diba ◽  
Ebrahim Esmailzadeh
Keyword(s):  
Control System ◽  
Model Simulation ◽  
Dynamic Control ◽  
Superior Performance ◽  
Steering Control ◽  
Pendulum System ◽  
Direct Yaw Moment Control ◽  
Yaw Moment Control ◽  
Moment Control ◽  
Yaw Moment

Basically, there are two main techniques to control the vehicle yaw moment. First method is the indirect yaw moment control, which works on the basis of active steering control (ASC). The second one being the direct yaw moment control (DYC), which is based on either the differential braking or the torque vectoring. An innovative idea for the direct yaw moment control is introduced by using an active controller system to supervise the lateral dynamics of vehicle and perform as an active yaw moment control system, denoted as the stabilizer pendulum system (SPS). This idea has further been developed, analyzed, and implemented in a standalone direct yaw moment control system, as well as, in an integrated vehicle dynamic control system with a differential braking yaw moment controller. The effectiveness of SPS has been evaluated by model simulation, which illustrates its superior performance especially on low friction roads.

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