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http://dx.doi.org/10.3795/KSME-A.2013.37.6.731

Fault-Tolerant Driving Control of Independent Steer-by-Wire System for 6WD/6WS Vehicles Using High Slip  

Nah, Jae Won (Graduate School of Convergence Science and Technology, Seoul Nat'l Univ.)
Kim, Won Gun (Program in Automotive Engineering, Seoul Nat'l Univ.)
Yi, Kyongsu (School of Mechanical and Aerospace Engineering, Seoul Nat'l Univ.)
Lee, Jongseok (Samsung Techwin)
Lee, Daeok (Agency for Defense Development)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.6, 2013 , pp. 731-738 More about this Journal
Abstract
This paper describes a fault-tolerant driving control strategy for an independent steer-by-wire system in sixwheel-drive/six-wheel-steering vehicles. An algorithm has been designed to realize vehicle maneuverability that is as close as possible to that of non-faulty vehicles by inducing high slip ratio of the wheel through a faulty steer-by-wire system in order to reduce the lateral tire force, which is resistant to the yaw motion. Considering the transition of the longitudinal tire force of a wheel with a faulty steer-by-wire component, the longitudinal tire forces are optimally distributed to the other wheels. Fault-tolerant driving performance has been investigated via computer simulations. Simulation studies show that the proposed algorithm can significantly improve the maneuverability of a vehicle with a faulty steer-by-wire system as compared to the optimal traction distribution method.
Keywords
Fault Tolerant Driving; Vehicle Dynamics; Steer-by-Wire; Six-Wheel-Driving;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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