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US 2017/0320486 A1Published application
Methods and system for starting an engine of a hybrid vehicle
AssigneeFord Global Technologies, LLC
InventorsAlexander O`Connor Gibson, Felix Nedorezov, Seunghoon Lee, Jeffrey Allen Doering, Hong Jiang
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Abstract
Systems and methods for starting an engine of a hybrid vehicle are disclosed. The systems and methods disclosed may apply to series or parallel hybrid driveline configurations. In one example, engine cranking torque may be adjusted in response to a variety of operating conditions so that the engine may be started faster or slower.
Claims5
1-16. (canceled)
A driveline system, comprising:
- an engine;
- an electric machine;
- a driveline disconnect clutch positioned between the engine and the electric machine;
- and
- a controller including executable instructions stored in non-transitory memory for starting the engine via the electric machine in a first mode where engine cranking torque is sufficient to accelerate the engine to a speed of the electric machine, starting the engine in a second mode where engine cranking torque is insufficient to accelerate the engine to the speed of the electric machine, and adjusting slip of the driveline disconnect clutch to provide engine cranking torque in the first and second modes.
2 more elements
Dependencies are inferred from the claim text.