Application of optimum tire force distribution to vehicle motion control

2012 ◽  
Author(s):  
Chun-Chieh Wang ◽  
Sheng-Yuan Cheng ◽  
Tesheng Hsiao ◽  
Wei-Yao Chou
Keyword(s):  
Motion Control ◽  
Force Distribution ◽  
Tire Force ◽  
Vehicle Motion

A study on motion control of 6WD/6WS vehicle using optimum tire force distribution method

ICCAS 2010 ◽  
2010 ◽  
Author(s):  
Sang-Ho Kim ◽  
Dong-Hyung Kim ◽  
Chang-Jun Kim ◽  
Young-Ryul Kim ◽  
Joo-Young Choi ◽  
...  
Keyword(s):  
Motion Control ◽  
Force Distribution ◽  
Distribution Method ◽  
Tire Force

The Driving Severity Number (DSN) — A Step Toward Quantifying Treadwear Test Conditions

1986 ◽  
Vol 14 (3) ◽  
pp. 139-159 ◽  
Author(s):  
A. G. Veith
Keyword(s):  
Signal Processing ◽  
Ambient Temperature ◽  
Lateral Acceleration ◽  
Force Distribution ◽  
Single Index ◽  
Tire Force ◽  
Test Conditions ◽  
Wheel Revolution ◽  
High Degree ◽  
Revolution Counter

Abstract A system, called the “Driving Severity Monitor” (DSM), has been developed for characterizing tire force distribution as related to treadwear in either normal tire use or in tire fleet testing in a convoy. The system consists of an accelerometer for monitoring lateral accelerations, a wheel revolution counter, and a module for signal processing and read-out. The output of the DSM is reduced to a single index, the Driving Severity Number (DSN), which characterizes a vehicle journey. The DSN is equal to the sum of squares of lateral acceleration measured once per tire revolution during a trip, divided by the number of wheel revolutions. The DSN had a high degree of correlation (R ≧ 0.95) with treadwear in two wear programs when pavement abrasiveness was held constant. This supports the concept that the three basic treadwear components: tire force distribution, pavement abrasiveness, and ambient temperature, can be separated for better understanding of tire treadwear.

Simultaneous Optimal Distribution of Lateral and Longitudinal Tire Forces for the Model Following Control

2004 ◽  
Vol 126 (4) ◽  
pp. 753-763 ◽  
Author(s):  
Ossama Mokhiamar ◽  
Masato Abe
Keyword(s):  
Lateral Force ◽  
Longitudinal Force ◽  
Equality Constraints ◽  
Steering Wheel ◽  
Slip Angle ◽  
Force Distribution ◽  
Distribution Method ◽  
Tire Force ◽  
Model Following Control ◽  
Tire Forces

This paper presents a proposed optimum tire force distribution method in order to optimize tire usage and find out how the tires should share longitudinal and lateral forces to achieve a target vehicle response under the assumption that all four wheels can be independently steered, driven, and braked. The inputs to the optimization process are the driver’s commands (steering wheel angle, accelerator pedal pressure, and foot brake pressure), while the outputs are lateral and longitudinal forces on all four wheels. Lateral and longitudinal tire forces cannot be chosen arbitrarily, they have to satisfy certain specified equality constraints. The equality constraints are related to the required total longitudinal force, total lateral force, and total yaw moment. The total lateral force and total moment required are introduced using the model responses of side-slip angle and yaw rate while the total longitudinal force is computed according to driver’s command (traction or braking). A computer simulation of a closed-loop driver-vehicle system subjected to evasive lane change with braking is used to prove the significant effects of the proposed optimal tire force distribution method on improving the limit handling performance. The robustness of the vehicle motion with the proposed control against the coefficient of friction variation as well as the effect of steering wheel angle amplitude is discussed.

scholarly journals Risk-based autonomous vehicle motion control with considering human driver’s behaviour

2019 ◽  
Vol 107 ◽  
pp. 1-14 ◽  
Author(s):  
Chongfeng Wei ◽  
Richard Romano ◽  
Natasha Merat ◽  
Yafei Wang ◽  
Chuan Hu ◽  
...  
Keyword(s):  
Motion Control ◽  
Autonomous Vehicle ◽  
Vehicle Motion
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