Patent ID: 8182390
Filing Date: 2012-05-22
Classification: B60K,B60W,F16H,Y02T,Y10T

Abstract:
1. A method of hydraulic clutch control for a vehicle having a multi-mode hybrid transmission having first and second holding clutches and first and second output clutches, comprising: engaging the first holding clutch to place the transmission in a first neutral mode; predicting a first electronically variable transmission (EVT) mode; beginning tracking of the first output clutch; predicting a second EVT mode; ending tracking of the first output clutch; beginning tracking of the second holding clutch; engaging the second holding clutch to place the transmission in a second neutral mode, wherein engaging the second holding clutch ends tracking of the second holding clutch; disengaging the first holding clutch to place the transmission in a third neutral mode; beginning tracking of the second output clutch; and engaging the second output clutch to place the transmission in the second EVT mode, wherein engaging the second output clutch ends tracking of the second output clutch.