Motor operation control system for an electrically variable transmission
AssigneeChrysler Group LLC
InventorsNadirsh Patel, Goro Tamai, Ashish Krupadanam
Life of this patent
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Abstract
A motor operation control system and method for controlling first and second electric motors of an electrically variable transmission. The system and method determine a minimum battery power associated with a torque of the second electric motor, set the torque of the second electric motor based on the determined minimum battery power, and set a torque of the first electric motor based on the determined minimum battery power.
Claims16
A method of controlling first and second electric motors of a vehicle having an electrically variable transmission, said method comprising using a processor to perform the steps of:
- determining minimum and maximum torque limits for the second electric motor;
- determining a minimum battery power as a function of a torque of the second electric motor, and not the first electric motor;
- setting the torque of the second electric motor based on the determined minimum battery power;
- and
- setting a torque of the first electric motor based on the determined minimum battery power.
A controller for controlling first and second electric motors of a vehicle having an electrically variable transmission, said controller comprising:
- a processor programmed to:
- determine minimum and maximum torque limits for the second electric motor;
- determine a minimum battery power as a function of a torque of the second electric motor, and not the first electric motor;
- set the torque of the second electric motor based on the determined minimum battery power;
- and
- set a torque of the first electric motor based on the determined minimum battery power.
Dependencies are inferred from the claim text.