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Method for monitoring the operations of an electromechanical control system that ensures the adhesion of wheels of a motor vehicle

  • US 4,841,446 A
  • Filed: 12/11/1987
  • Issued: 06/20/1989
  • Est. Priority Date: 12/23/1986
  • Status: Expired due to Fees
First Claim
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1. A safety switching arrangement for monitoring and controlling the operations of an electromechanical control system that ensures the adhesion of heels of a motor vehicle, such as an antilock system or an antislip control system by a control system control signal, that is equipped with wheel rotation speed signal generators and a reference circuit for the determination of the wheel speeds, vehicle speed and vehicle acceleration from wheel rotation speeds, said safety switching arrangement comprising:

  • first input means for receiving first set of vehicle acceleration signals derived from wheel speeds and vehicle speed, in said reference circuit;

    second input means for receiving second set of vehicle acceleration signals from acceleration sensors fixed at the vehicle;

    evaluation means for comparing said first and second set of acceleration signals to determine whether they match within a band width and generating an error signal to disable said control system and activate a warning indicator when the acceleration signals do not match within said band width; and

    third input means for receiving a control system control signal as a blocking signal and suppressing said evaluation means from generating an error signal in response to said blocking signal.

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