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Warning device for a vehicle

  • US 4,222,031 A
  • Filed: 10/02/1978
  • Issued: 09/09/1980
  • Est. Priority Date: 10/02/1978
  • Status: Expired due to Term
First Claim
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1. A warning device for a vehicle comprising:

  • a starting check unit sensor group including a plurality of sensors respectively provided at a set of predetermined check points in the vehicle for detecting an abnormal state which may exist in any of the check points at a starting check time and thereupon producing an output signal;

    a driving check unit sensor group including a plurality of sensors respectively provided at another set of predetermined check points in the vehicle for detecting an abnormal state which may exist in any of said other set of check points during driving of the vehicle and thereupon producing an output signal;

    indication means provided in correspondence to each of said sensors;

    an alarm buzzer;

    designation means for instructing conduction of a test at a specified rotated position of a key switch before a starter is on;

    a first control circuit driven by operation of a test switch by an operator upon instruction by said designation means for driving all of the indication means and the alarm buzzer for a test;

    a second control circuit for connecting said starting check unit sensor group with only the indication means corresponding thereto after said test thereby to indicate an abnormal state existing in any of the starting check points; and

    a third control circuit including a first means for driving all of the indication means and the alarm buzzer in response to the output signal of any sensor of said driving check unit sensor group while the key switch is on and second means for thereafter driving only the indication means corresponding to the check point at which the abnormal state exists.

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