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Vehicle engine starting system and method

  • US 20020078914A1
  • Filed: 11/27/2001
  • Published: 06/27/2002
  • Est. Priority Date: 12/25/2000
  • Status: Active Grant
First Claim
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1. A vehicle engine starting method for driving a starter motor by using a secondary battery as a power source, comprising:

  • detecting a voltage at said secondary battery;

    comparing the detected voltage at said secondary battery with a predetermined value; and

    allowing a discharge from said secondary battery to said starter motor if the detected voltage at said secondary battery is equal to or higher than the predetermined value, and disallowing a discharge from said secondary battery to said starter motor if the detected voltage is lower than the predetermined value.

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