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Voltage regulating system for vehicle including alternator

  • US 5,966,001 A
  • Filed: 04/22/1997
  • Issued: 10/12/1999
  • Est. Priority Date: 04/23/1996
  • Status: Expired due to Term
First Claim
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1. A voltage regulating system for a vehicle including an alternator connected to a battery and having a field coil, the system comprising:

  • a voltage regulator unit for controlling current supplied to said field coil according to a comparison between an output voltage of said alternator and a reference voltage;

    first means for continuously accumulating a plurality of values relative to terminal voltage of said battery sampled in a fixed detecting period which is longer than a period of typical speed changes of said engine due to vehicle operation; and

    second means for changing said reference voltage according to an accumulated amount of said plurality of values.

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