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Method of estimating torque of transmission clutch

  • US 9,353,806 B2
  • Filed: 09/02/2014
  • Issued: 05/31/2016
  • Est. Priority Date: 12/13/2013
  • Status: Active Grant
First Claim
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1. A method of estimating a torque of a transmission clutch, comprising:

  • deducing, by a controller, an engine transient torque based on an engine angular speed measured using a sensor, an engine static torque deduced using a data map and a load torque depending on a driving load;

    deducing, by the controller, an estimated engine angular speed based on the engine static torque and the engine transient torque;

    deducing, by the controller, an estimated clutch torque resulted from slipping of the transmission clutch by summing an integration value and an error compensation value, wherein the integration value and the error compensation value are deduced based on a difference between the estimated engine angular speed and the measured engine angular speed; and

    controlling, by the controller, the transmission clutch by using the estimated clutch torque.

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