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Electrical system for motor vehicles

  • US 6,304,054 B1
  • Filed: 08/23/1999
  • Issued: 10/16/2001
  • Est. Priority Date: 09/02/1998
  • Status: Expired due to Fees
First Claim
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1. An electrical system for motor vehicles having a plurality of consumers, comprising:

  • a starter motor;

    a generator;

    a pair of batteries, one battery being a starting battery connected to the starter motor and the other battery being a consumer battery connected to the consumers; and

    a charging regulator connected between the generator and the starting battery, the charging regulator being arranged between the pair of batteries to keep them separated from one another and to regulate the magnitude of the charging current to the starting battery, the charging regulator including first and second transistors and an electronic controller for controlling the first and second transistors, the first transistor being connected to the generator and the second transistor being connected to the starting battery, the electronic controller regulating the current to the starting battery from the generator by slowly turning on the second transistor when the generator begins to charge the starting battery and turning off the second transistor when the current has decreased to a predetermined value corresponding to the starting battery being fully charged.

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