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Idling stop apparatus and method for disabling idling stop function

  • US 8,887,684 B2
  • Filed: 09/17/2010
  • Issued: 11/18/2014
  • Est. Priority Date: 09/25/2009
  • Status: Active Grant
First Claim
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1. An idling stop apparatus to be mounted on a vehicle, comprising:

  • a microcomputer, having an idling stop function of automatically stopping an engine of the vehicle when a predetermined stop condition is established and of automatically starting the engine when a predetermined start condition is established while the engine is stopped;

    a detector, that detects that a power-supply voltage of the microcomputer is below a first voltage, the first voltage being a minimum operating voltage of the microcomputer; and

    a flip-flop, that stores reset information when the detector detects that the power-supply voltage of the microcomputer is below the first voltage, and outputs a signal for prohibiting the microcomputer from executing the idling stop function while the flip-flop is storing the reset information,wherein the first voltage is higher than a second voltage, the second voltage being a minimum operating voltage of the flip-flop, andwhen, after the flip-flop stops operating, the flip-flop starts operating again upon starting of the engine, the flip-flop stores the reset information again when the detector detects that the power-supply voltage of the microcomputer is below the first voltage.

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