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Control of idle-stop operation

  • US 8,511,270 B2
  • Filed: 01/25/2011
  • Issued: 08/20/2013
  • Est. Priority Date: 01/27/2010
  • Status: Active Grant
First Claim
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1. An idle-stop operation control device that performs an idle-stop operation on a vehicle internal combustion engine, whereby an operation of the vehicle internal combustion engine is ceased in an idle operation state and an engine start-up operation is performed on the internal combustion engine from an operation-ceased state upon request by operating a starter motor using a power of a battery, the device comprising:

  • a sensor configured to detect a terminal voltage of the battery; and

    a programmable controller that operates using a power supplied from the battery, the programmable controller being programmed to;

    determine if the controller is in a condition immediately after activation;

    determine that the controller has experienced a shutdown and restart in the course of the engine start-up operation when the controller is in a condition immediately after activation and the terminal voltage of the battery is lower than a restart determining value; and

    prevent the idle-stop operation from being executed on the internal combustion engine when the controller has experienced the shutdown and restart in the course of the engine start-up operation.

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