Adaptive automated transmission upshift control

Details Adaptive automated transmission upshift control Adaptive automated transmission upshift control

1999-07-19

2000-09-05

Marmor, Charles A.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

74335, F16H 5930, F16H 5900

Patent

active

06113516&

ABSTRACT:
A method/system for controlling upshifting in an automated mechanical transmission system (10) utilized on a vehicle. When an upshift from a currently engaged ratio (GR) is required (ES>ESU/S), skip upshifts (GRTARGET=GR+N, N>1) and then single upshifts (GRTARGET=GR+1) are evaluated in sequence. If throttle demand is high (THL>REF), to encourage performance-oriented selection of ratios, skip upshifts are evaluated to determine if they can be completed at a higher engine speed (ESMIN=ESDEFAULT+offset) than is otherwise required.

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