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TRANSMISSION CONTROL METHOD FOR CONTINUOUSLY VARIABLE TRANSMISSION

  • US 20090197735A1
  • Filed: 01/28/2009
  • Published: 08/06/2009
  • Est. Priority Date: 01/31/2008
  • Status: Active Grant
First Claim
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1. A transmission control method for a continuously variable transmission having a plurality of transmission control modes comprising the following steps:

  • wherein in a first transmission control mode,lowering an actual transmission gear ratio when a target engine speed calculated from vehicle velocity and throttle position is higher than an actual engine speed, andraising said actual transmission gear ratio when said target engine speed is lower than said actual engine speed; and

    in a second transmission control mode,calculating a target transmission gear ratio based on said target engine speed, which is calculated from said vehicle velocity and said throttle position, and said vehicle velocity, andchanging said actual transmission gear ratio toward said calculated target transmission gear ratio.

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