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VEHICLE STEERING REVERSAL RATE ALARM SYSTEM

  • US 3,654,599 A
  • Filed: 04/10/1970
  • Issued: 04/04/1972
  • Est. Priority Date: 04/10/1970
  • Status: Expired due to Term
First Claim
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1. In a vehicle having a steering member, automatic driver alertness apparatus comprising:

  • reversal sensing means for generating a first signal that is a function of the number of reversals of said steering member;

    memory means responsive to said first signal for generating and storing a substantially constant reversal rate signal that is a function of the steering member reversal rate occurring during a first time period; and

    alarm means responsive to said first signal and said reversal rate signal subsequent to said first time period for providing an alarm signal when the time averaged rate of said reversals substantially falls below the stored reversal rate.

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