Please download the dossier by clicking on the dossier button x
×

METHOD AND APPARATUS TO MONITOR ROTATIONAL SPEEDS IN AN ELECTRO-MECHANICAL TRANSMISSION

  • US 20090118074A1
  • Filed: 09/18/2008
  • Published: 05/07/2009
  • Est. Priority Date: 11/06/2007
  • Status: Active Grant
First Claim
Patent Images

1. A method for controlling a powertrain comprising an electro-mechanical transmission mechanically-operatively coupled to an internal combustion engine and an electric machine to selectively transmit mechanical power to an output member, the method comprising:

  • monitoring operator inputs;

    determining input speeds and changes in input speeds of the internal combustion engine and the electric machine;

    comparing the input speeds to threshold input speeds;

    comparing the changes in input speeds to threshold changes in input speeds; and

    ,reducing input torques of the internal combustion engine and the electric machine to the transmission when any one of the input speeds and the changes in input speeds exceeds the corresponding threshold.

View all claims
  • 17 Assignments
Timeline View
Assignment View
    ×
    ×