Hybrid vehicle and method of reducing engine lugging
AssigneeFord Global Technologies, LLC
InventorsFloyd Cadwell, Shunsuke Okubo, Carol Louise Okubo, Kimberly Trice
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Abstract
A vehicle includes an electric machine, an engine, an engine mount, and a controller. The engine has a base speed that corresponds to a speed of the electric machine and an engine power demand. The engine mount is disposed between the engine and a vehicle structure such as a frame or unibody. The controller is configured to, in response to compression of the engine mount, increase an engine speed to a value that is greater than the base speed to reduce engine lugging.
Claims20
A vehicle comprising:
- an electric machine;
- an engine;
- an engine mount securing the engine to the vehicle;
- and
- a controller configured to, in response to compression of the engine mount, increase an engine speed to a value that is greater than a base engine speed corresponding to electric machine speed and engine power demand to reduce engine lugging.
A vehicle comprising:
- an electric machine;
- an engine;
- an engine mount disposed between the engine and a vehicle structure;
- and
- a controller configured to, in response to compression of the engine mount, control engine speed based on a difference between a base engine speed and a minimized lugging engine speed to reduce engine lugging.
A method of operating a hybrid powertrain having an engine and an electric machine comprising:
- increasing engine speed by a controller from a base speed associated with an electric machine speed and an engine power demand based on compression of an engine mount to reduce engine lugging.
Dependencies are inferred from the claim text.