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Methods and systems for operating a driveline disconnect clutch responsive to engine operating conditions

  • US 9,260,107 B2
  • Filed: 02/25/2013
  • Issued: 02/16/2016
  • Est. Priority Date: 05/04/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • rotating an integrated starter/generator (ISG) at a first speed;

    operating an engine at a second different speed while operating the ISG at the first speed in response to conditions for adapting a transfer function stored in memory;

    revising the transfer function stored in memory while rotating the ISG at the first speed and the engine at the second speed in response to a difference between an engine torque estimate based on engine operating conditions and a torque estimate based on the transfer function; and

    operating a driveline disconnect clutch responsive to the transfer function.

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