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Method and apparatus for automatic engine shut-off and restart

  • US 4,192,279 A
  • Filed: 01/17/1979
  • Issued: 03/11/1980
  • Est. Priority Date: 01/25/1978
  • Status: Expired due to Term
First Claim
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1. A method for automatic control of the motor of a motor vehicle, comprising the steps of arresting the motor when each condition in a first set of conditions is determined to have been met, said first set of conditions including:

  • (A) the road speed of the vehicle falls below a minimum speed which is substantially equal to the lowest speed which the vehicle can have without stalling the motor when the drive line is engaged and being approximately 3 km/hour;

    (B) the accelerator pedal is not depressed;

    (C) the clutch pedal is not depressed; and

    (D) a time period of selectable length T1 has elapsed since the previous passage of the vehicle speed through said minimum speed.

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