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ALTERNATOR CONTROL FOR BATTERY CHARGING

  • US 20140167707A1
  • Filed: 12/18/2012
  • Published: 06/19/2014
  • Est. Priority Date: 12/18/2012
  • Status: Active Grant
First Claim
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1. An electrical system for an automotive vehicle, comprising:

  • an electrical generating machine having a voltage output set by a set point voltage, a battery coupled to the voltage output of the alternator and an electronic control unit (ECU) that sets the set point voltage; and

    the ECU selecting one of a plurality of control modes to control the electrical generating machine based on vehicle operating parameters, setting a range for the set point voltage based on the selected control mode and setting the set point voltage based on a feedback parameter for that control mode, wherein the control modes include a trickle charge mode wherein the feedback parameter is battery charge current and the ECU sets the set point voltage to maintain the battery charge current at a predetermined level.

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