Adaptive Control for Virtual Steering Characteristics on Electric Vehicle Using Steer-by-Wire System
Yamaguchi, Y.
Murakami, T.
Dept. of Syst. Design Eng., Keio Univ., Yokohama;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: May 2009
Volume: 56,
Issue: 5
On page(s): 1585-1594
ISSN: 0278-0046
INSPEC Accession Number: 10601681
Digital Object Identifier: 10.1109/TIE.2008.2010171
First Published: 2008-11-25
Current Version Published: 2009-04-28
Abstract
This paper describes an adaptive control to realize the desired steering characteristics on a vehicle. As is well known, the steering characteristics indicate handling performance on a vehicle and are important for safe driving. In this paper, a strategy to adjust it to a driver's preference easily using a steer-by-wire system is proposed. The control system including the proposed method intervenes only when the front tire cornering stiffness undergoes many changes. Then, the estimated self-aligning torque is fed back to the steering wheel so that a driver can feel reaction torque from the road. This is one of the remarkable features in the proposed steer-by-wire system. Numerical simulation and experiment are carried out to show the validity of the proposed method.
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