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Lever steering system

  • US 5,653,304 A
  • Filed: 06/06/1995
  • Issued: 08/05/1997
  • Est. Priority Date: 04/20/1994
  • Status: Expired due to Fees
First Claim
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1. In a land vehicle having a frame and at least four wheels including at least a a pair of non-steerable rear wheels, a first steerable front wheel and a second steerable front wheel, a computer controlled, independently actuated wheel steering system comprising:

  • a computer having at least one signal input and at least two signal outputs;

    a first actuator adapted to receive a first wheel angle control signal from said computer and physically connected to cause turning of said first steerable front wheel relative to said frame about a generally vertical steering axis for said first wheel;

    a second actuator adapted to receive a second wheel angle control signal from said computer and physically connected to cause turning of said second steerable front wheel relative to said frame about a generally vertical steering axis for said second wheel;

    at least one driver operated control element for generating a steering control signal in response to the position thereof and having means for transmitting said steering control signal to one of said at least one signal input; and

    means for causing the resistive force to movement of said control element to be responsive to the magnitude of turning force applied between at least one of said actuators and one of said steerable wheels;

    said computer causing distinct first and second wheel angle control signals to be generated, each being a different function of said steering control signal;

    whereby a predetermined steering angle relation can be maintained between first wheel and second wheel turn angles to provide a predetermined control characteristic.

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