Method and system for engine control

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United States of America Patent

PATENT NO 9944276
SERIAL NO

15146687

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods and systems are provided for synergizing the benefits of a variable compression ratio engine in a hybrid vehicle system. A vehicle controller may hold the engine in a lower compression ratio during engine pull-ups and pull-downs, in particular when passing through a low speed region where compression bobbles can occur. During engine operation, in response to a change in driver demand, the controller may opt to switch the compression ratio or maintain a current compression ratio while smoothing a torque deficit using motor torque, the selection based on fuel economy.

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Patent Owner(s)

Patent OwnerAddress
FORD GLOBAL TECHNOLOGIES LLC1 AMERICAN RD FL4 DEARBORN MI 48126-2701

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leone, Thomas G Ypsilanti, US 243 4672
Martin, Douglas Raymond Canton, US 210 2634
Miller, Kenneth James Canton, US 191 2365

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