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Vehicle control system based on estimation of the driving skill of a vehicle operator

  • US 5,991,675 A
  • Filed: 03/25/1994
  • Issued: 11/23/1999
  • Est. Priority Date: 06/02/1993
  • Status: Expired due to Fees
First Claim
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1. A system for controlling a vehicle steering device according to an operating condition of a vehicle, comprising:

  • means for detecting an operating condition of said vehicle;

    means for controlling said vehicle steering device according to data on said operating condition detected by said detecting means;

    means for estimating a driving skill of a vehicle operator according to an operation executed by said vehicle operator;

    means for modifying a property of said controlling means according to said driving skill estimated by said driving skill estimating means;

    said operating condition includes at least one of a yaw movement and a lateral acceleration of said vehicle; and

    a level of intervention of said control means on said steering device is decreased when said estimated driving skill is relatively high; and

    said controlling means provides a drive signal for a powered actuator so as to cancel a deviation of an actual yaw rate of the vehicle from a reference yaw rate computed from data including a steering input and a vehicle speed.

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