System for controlling vehicular four-wheel steering mechanisms
First Claim
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1. A system for controlling four-wheel steering mechanisms for vehicles having a pair of front wheels and a pair of rear wheels, comprising:
- a steering mechanism operable in response to a steering operation to turn the front and rear wheels to angles suitable for directing the vehicle to a steered direction, including front and rear steering linkages operatively connected respectively to the front and rear wheels; and
control means interconnecting said front and rear steering linkages and responsive to the speed of the vehicle to vary the ratio of the steering angle of the rear wheels to the steering angle of the front wheels as a function of the travelling speed of said vehicle to effect four-wheel steering in low-speed operations, and to vary only front steering in high-speed operations of said vehicle.
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Abstract
A system for controlling vehicular four-wheel steering mechanisms, having means for varying the ratio of the steering angle of the rear wheels to that of the front wheels as a function of the vehicle speed to effect four-wheel steering in low-speed operations and substantially only front steering in high-speed operations of the vehicle.
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Citations
8 Claims
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1. A system for controlling four-wheel steering mechanisms for vehicles having a pair of front wheels and a pair of rear wheels, comprising:
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a steering mechanism operable in response to a steering operation to turn the front and rear wheels to angles suitable for directing the vehicle to a steered direction, including front and rear steering linkages operatively connected respectively to the front and rear wheels; and control means interconnecting said front and rear steering linkages and responsive to the speed of the vehicle to vary the ratio of the steering angle of the rear wheels to the steering angle of the front wheels as a function of the travelling speed of said vehicle to effect four-wheel steering in low-speed operations, and to vary only front steering in high-speed operations of said vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification