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Method and apparatus for clutch control in a vehicle having an engine start-stop powertrain and a dual-clutch transmission

  • US 8,313,415 B2
  • Filed: 04/02/2010
  • Issued: 11/20/2012
  • Est. Priority Date: 04/02/2010
  • Status: Active Grant
First Claim
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1. A vehicle comprising:

  • an engine adapted to automatically shut down and restart, wherein shutting down and restarting the engine defines an engine autostop/autostart cycle;

    a dual-clutch transmission (DCT) having a pair of input clutches, one being selectively engageable to connect the engine to oddly numbered gears of the DCT, and the other being selectively engageable to connect the engine to evenly numbered gears of the DCT; and

    a controller having a shift algorithm adapted for shifting the DCT to achieve a predetermined engine load state during the engine autostart/autostop cycle;

    wherein the predetermined engine load state is one of an unloaded state and a partially loaded state.

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