Transmission shifting responsive to borderline knock limits

Details Transmission shifting responsive to borderline knock limits Transmission shifting responsive to borderline knock limits

2010-07-09

2010-12-21

Wright, Dirk (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Engine ignition control for transmission change

Reexamination Certificate

active

07854682

ABSTRACT:
A method for operating an engine and transmission in a vehicle is described. The method comprises up-shifting the transmission based on whether engine knock limits spark advance at engine conditions after the up-shift. Further, the method may include accounting for differences in fuel types, and their effects on engine knock in future gears.

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patent: 6929581 (2005-08-01), Sugimura
patent: 6941210 (2005-09-01), Kondo et al.
patent: 7247124 (2007-07-01), Tamai

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