Automatic vehicle power and headlight controlling device with detecting function of a generator and delayed effect

  • US 5,811,888 A
  • Filed: 11/12/1996
  • Issued: 09/22/1998
  • Est. Priority Date: 11/12/1996
  • Status: Expired due to Fees
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First Claim
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1. An automatic vehicle power and headlight controlling device with delay effect arranged in an automobile having an engine and headlights with high beams and low beams;

  • the automatic vehicle power and headlight controlling device comprising an in-car sensing circuit for sensing illumination inside the automobile, an out-car sensing circuit for sensing illumination outside the automobile, a power supply circuit for powering other electrical devices of the automobile; and

    a delay circuit for supplying power to the in-car sensing circuit, the out-car sensing circuit, and the power supply circuit after a time delay;

    wherein;

    the delay circuit is connected to both the in-car sensing circuit and the power supply circuit;

    the delay circuit is adapted for delaying a supply of power to the in-car sensing circuit, the out-car sensing circuit and the power supply circuit when initially starting the engine so that all remaining battery power is used to start the engine, and after the time delay has elapsed and the engine has started, permitting the supply of power to the in-car sensing circuit and the power supply circuit; and

    the in-car sensing circuit and the out-car sensing circuit are arranged so that the out-car sensing circuit is energized only when the in-car sensing circuit is functioning, the in-car sensing circuit for automatically turning on the headlights based on illumination inside the automobile and the out-car sensing circuit for automatically switching the headlights between high and low beams, when the headlights are on, based on illumination outside the automobile.

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