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Engine starting apparatus

  • US 10,240,572 B2
  • Filed: 11/05/2014
  • Issued: 03/26/2019
  • Est. Priority Date: 11/05/2014
  • Status: Active Grant
First Claim
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1. An engine starting apparatus that is provided with an idling stop system for automatically stopping combustion in an engine with a plurality of cylinders so as to stop the engine, when a predetermined condition is established, and that restarts the engine by driving a starter so as to make a pinion gear provided in the starter engage with a ring gear of the engine in an inertial rotation, in the case where when combustion of the engine is stopped by the idling stop system and hence the engine is in the inertial rotation, a restart demand for the engine is issued,wherein an engine rotation speed and a crank angle position at a time when the engine is in the inertial rotation are detected, andwherein in the case where when the detected crank angle position is at an intermediate point between the top dead center of any one of the cylinders of the engine in the inertial rotation and the top dead center of the cylinder following said one of the cylinders, it is determined that the detected engine rotation speed is within a predetermined range, drive of the starter is prohibited for a predetermined time period.

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