Hybrid electric vehicle control strategy while traveling in reverse
AssigneeFord Global Technologies, LLC
InventorsMing Lang Kuang, Prabhakar B Patil, James Paul McCarthy
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Abstract
A method for reverse drive mode operation of a hybrid electric vehicle includes determining an output power of the internal combustion engine, determining a power circulation loss between a generator and a motor, determining a benefit power based on the difference between the output power of the internal combustion engine and the power circulation loss, and stopping operation of the internal combustion engine during the reverse drive mode operation of the vehicle if the benefit power is less than a predetermined threshold power value.
Claims5
A method for reverse drive mode operation of a hybrid electric vehicle, the hybrid electric vehicle having a traction motor and an operating internal combustion engine and operating generator mechanically coupled via a power transmission device, the method comprising:
- determining an output power of the internal combustion engine;
- determining a power circulation loss between the generator and the motor;
- determining a benefit power based on the difference between the output power of the internal combustion engine and the power circulation loss;
- and
- stopping operation of the internal combustion engine during the reverse drive mode operation of the vehicle if the benefit power is less than a predetermined threshold power value.
Dependencies are inferred from the claim text.