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Method of feedback-controlling idling speed of internal combustion engine

  • US 4,649,878 A
  • Filed: 01/17/1985
  • Issued: 03/17/1987
  • Est. Priority Date: 01/18/1984
  • Status: Expired due to Term
First Claim
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1. An idling speed feedback control method for use with an internal combustion engine having electrical load equipment and a generator for supplying electric power to said electrical load equipment, said generator being driven by said engine, wherein an idling speed feedback control amount is effected as a function of the difference between an actual engine speed and a target speed, said methd comprising the steps of:

  • detecting a gnerating state signal representing a field coil current of said generator;

    detecting the actual engine speed;

    determing an electrical load correction value as a function of said generating state signal and said actual engine speed; and

    correcting the feedback control amount during idling by an amount corresponding to the correction value.

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