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Under voltage protection for a starter/alternator

  • US 6,633,153 B1
  • Filed: 08/02/2002
  • Issued: 10/14/2003
  • Est. Priority Date: 08/02/2002
  • Status: Expired due to Fees
First Claim
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1. A method of preventing a starter/alternator from initiating a starting sequence for an associated IC engine in a system that includes an energy storage device, a starter/alternator, and an IC engine, comprising the steps of:

  • monitoring the available voltage of the energy storage device;

    comparing said monitored voltage to a predetermined threshold voltage;

    disabling the starter/alternator in a starter mode when said voltage is below said predetermined threshold voltage, thereby disabling said starting sequence of said associated IC engine and preserving electrical energy in said energy storage device;

    providing an indication signal of said disabling of said starter/alternator; and

    re-enabling operation of said starter/alternator when said monitored voltage exceeds said predetermined threshold voltage.

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