Engine restart torque spike management system for a hybrid vehicle
AssigneeFord Global Technologies, LLC
InventorsFelix Nedorezov, Hong Jiang, Alexander O'Connor Gibson, Matthew John Shelton, Zhengyu Dai, Roger Lyle Huffmaster, Charles Chunlin Liu
Life of this patent
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Abstract
A method for controlling a hybrid vehicle having a traction motor between an engine and a step ratio automatic transmission during a startup of the hybrid vehicle. The method includes performing at least one of adjusting a clutch or an oil pressure to change a transmission tie-up force or downshifting the transmission in response to an actuation rate of a vehicle driver demand.
Claims20
A method for controlling a hybrid vehicle having a traction motor between an engine and a step ratio automatic transmission during a startup of the hybrid vehicle comprising:
- performing at least one of (1) adjusting a clutch or an oil pressure to change a transmission tie-up force or (2) downshifting the transmission in response to an actuation rate of a vehicle driver demand.
A system for controlling a hybrid electric vehicle having a traction motor disposed between an engine and a transmission comprising:
- a controller configured to perform at least one of (1) adjusting a clutch or an oil pressure to change a transmission tie-up force or (2) downshifting the transmission in response to an actuation rate of a vehicle driver demand during a startup.
A hybrid electric vehicle comprising:
- an engine;
- an electric traction motor selectively coupled to the engine by a clutch;
- a torque converter;
- a transmission;
- and
- a controller configured to perform at least one of (1) adjusting the clutch or an oil pressure to change a transmission tie-up force or (2) downshifting the transmission in response to an actuation rate of a vehicle driver demand during a startup.
Dependencies are inferred from the claim text.