×

System and method of controlling a hybrid electric vehicle

  • US 7,236,873 B2
  • Filed: 07/21/2005
  • Issued: 06/26/2007
  • Est. Priority Date: 07/23/2004
  • Status: Active Grant
First Claim
Patent Images

1. A system for controlling torque in a hybrid electric vehicle, the system comprising:

  • primary and secondary power sources;

    a power transfer system adapted to be powered by at least one of the primary and secondary power sources to drive a vehicle traction wheel; and

    a control system for controlling operation of the power transfer system and primary and secondary power sources, the control system being configured to process signals indicative of a primary power source speed command, a maximum primary power source speed command, and a primary power source speed;

    wherein the control system decreases output torque of the primary power source when the primary power source speed command is sufficiently close to the maximum primary power source speed command and the primary power source speed exceeds the primary power source speed command by at least a predetermined amount.

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