Steering system for wheeled land vehicle
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United States of America Patent
Stats
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Feb 23, 2016
Grant Date -
Feb 5, 2015
app pub date -
Nov 19, 2013
filing date -
Aug 5, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A wheeled vehicle is steered by a yoke or other operator control the movement of which is limited so that the operator's hands need not change position on the control. The steering is under the control of a microprocessor responsive to an input from the control, the vehicle's speedometer, and to accelerometers responsive to forces acting on the vehicle laterally and perpendicular to the roadway. The relationship between the position of the steerable wheels and the displacement of, or force applied to, the operator control is a function that depends on the magnitude of the displacement or force, speed, and one or more time derivatives of the displacement of, or force on, the operator control. The relationship between the position of the steerable wheels and the displacement of, or force on, the control is overridden when the lateral force is such that the vehicle is in danger of rolling over.
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