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Steering controller

  • US 5,194,851 A
  • Filed: 02/21/1991
  • Issued: 03/16/1993
  • Est. Priority Date: 02/21/1991
  • Status: Expired due to Term
First Claim
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1. An improved vehicular steering controller for controlling the angular position of a first set of vehicle wheels as a function of the angular position of a second set of wheels and including:

  • a computing section having embedded therein reference data representing the centered position of the first set of wheels;

    a visual display coupled to the computing section, said display being of the alpha-numeric type for displaying a signal representing one of at least two operational modes, one of which is for calibrating the controller; and

    ,a visual indicator coupled to the computing section, said indicator being of the "stepped" quasi-analog type for indicating the approximate magnitude of angular displacement of the first set of wheels from the centered position,and wherein;

    the first set of wheels is angularly positioned by at least one hydraulic cylinder coupled to a control valve operable over an input power range; and

    ,the controller incorporates a setup sequence to operate the control valve in sequential increments of increasing input power until a wheel movement signal is produced;

    whereby an operator of the vehicle is apprised of the approximate angular position of the first set of wheels and of the operational mode selected.

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