1989-11-01

A Control Method For 4WS Truck To Suppress Excursion of a Body Rear Overhang 892521

A rear-steering control method for a four-wheel steering truck has been developed. The purpose of this investigation is to develop a control method to minimize the turning radius without the excursion of the vehicle rear end toward the outside of the turn. The basic control concept is to steer the rear wheels so that the vehicle rear end follows the path of the front end. The control method was applied to an experimental medium-duty truck with four-wheel steering system. The simulation and vehicle test results showed the control method to be effective in minimizing the turning radius without causing the excursion of the vehicle rear end toward the outside in short turns.

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