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US 9,278,692 B2Granted
Methods and systems for a four wheel drive vehicle driveline
AssigneeFord Global Technologies, LLC
InventorsJeffrey Allen Doering, Alex O'Connor Gibson, Gregory Michael Pietron, James William Loch McCallum, Yuji Fujii
Life of this patent
Estimating the term…
Abstract
Systems and methods for improving operation of a hybrid vehicle are presented. In one example, driveline operation may be adjusted in response to operating the hybrid vehicle in a four wheel drivel low gear range. The approaches may improve vehicle drivability and reduce driveline degradation.
Claims6
A method of adjusting operation of a hybrid vehicle, comprising:
- automatically restarting an engine in response to release of a vehicle brake while the hybrid vehicle is operating in a four wheel drive low gear range;
- and
- stopping engine rotation in response to a vehicle battery reaching a first threshold state of charge based on operating the hybrid vehicle in the four wheel drive low gear range.
Dependencies are inferred from the claim text.