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Method of improving zone of coverage response of automotive radar

DC
  • US 5,714,927 A
  • Filed: 12/09/1996
  • Issued: 02/03/1998
  • Est. Priority Date: 12/09/1996
  • Status: Expired due to Term
First Claim
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1. In a radar system wherein a host vehicle uses radar to detect a target vehicle in a blind spot of the host vehicle driver, a method of improving the perceived zone of coverage response of automotive radar comprising the steps of:

  • determining the relative speed of the host and target vehicles;

    selecting a variable sustain time as a function of relative vehicle speed;

    detecting target vehicle presence and producing an alert command;

    activating an alert signal in response to the alert command;

    at the end of the alert command, determining whether the alert signal was active for a threshold time; and

    if the alert signal was active for the threshold time, sustaining the alert signal for the variable sustain time, wherein the zone of coverage appears to increase according to the variable sustain time.

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