Patent ID: 11858495
Assignee: ALLISON TRANSMISSION, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B

Claim 14:
15. A method of controlling a transmission during an engine stop-start event of an engine of a powertrain of a vehicle, the method comprising:
determining one or more grades of the vehicle at a first location;
adding a grade settling error to the determined one or more grades of the vehicle;
determining one or more auxiliary pump speeds of an auxiliary pump of the transmission for an engine stop-start event based on the determined one or more grades of the vehicle at the first location;
while the vehicle is at the first location, holding a gear and selective coupler arrangement in a first configuration with the auxiliary pump of the transmission; and
subsequently, while the vehicle is traveling, configuring the gear and selective coupler arrangement with a main pump of the transmission.