Electric machine shift and engine start coordination
AssigneeFca US LLC
InventorsNadirsh D. Patel, Cristian Rostiti, Allwyn D. Bhakare, Paolo Olivieri
Life of this patent
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Abstract
A hybrid electric vehicle (HEV) includes an internal combustion engine, an electric traction motor, a motor/generator configured to start the internal combustion engine, a transmission, and a powertrain control system including a controller having one or more processors. The controller is programmed to monitor the transmission for a gear shift while the HEV operates in an EV mode where the electric traction motor provides propulsion for the HEV, detect a driver torque request during the gear shift, and turn the internal combustion engine on to provide torque to the HEV during the gear shift.
Claims18
A hybrid electric vehicle (HEV), comprising:
- an internal combustion engine;
- an electric traction motor;
- a motor/generator configured to start the internal combustion engine;
- a transmission;
- and
- a powertrain control system including a controller having one or more processors, the controller programmed to:
- monitor the transmission for a gear shift while the HEV operates in an EV mode where the electric traction motor provides propulsion for the HEV;
- detect a driver torque request during the gear shift;
- and
- turn the internal combustion engine on to provide torque to the HEV during the gear shift.
A method of operating a hybrid electric vehicle (HEV) having an internal combustion engine, an electric traction motor, a motor/generator, and a transmission, the method comprising:
- monitoring, by a controller having one or more processors, the transmission for a gear shift while the HEV operates in an EV mode where the electric traction motor provides propulsion for the HEV;
- detecting, by the controller, a driver torque request during the gear shift;
- and
- turning the internal combustion engine on, by the controller, to provide torque to the HEV during the gear shift.
Dependencies are inferred from the claim text.