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Pressure controlled driveline mechanical coupling

  • US 9,145,049 B2
  • Filed: 12/19/2011
  • Issued: 09/29/2015
  • Est. Priority Date: 12/19/2011
  • Status: Active Grant
First Claim
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1. A vehicle comprising:

  • an electric machine;

    a transmission;

    a clutch system configured toreceive a current having a magnitude that depends on a line pressure associated with the transmission, andcontrol a clutch pressure to mechanically couple the electric machine and transmission based on the magnitude; and

    a controller configured to alter the magnitude based on the clutch pressure such that the clutch pressure remains generally equal to a target as the line pressure varies.

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