Shift control device and shift control method of vehicular...

Details Shift control device and shift control method of vehicular... Shift control device and shift control method of vehicular...

2006-12-05

2009-12-01

Lewis, Tisha D (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C477S135000, C475S120000, C475S127000, C701S055000, C701S062000

Reexamination Certificate

active

07625313

ABSTRACT:
In a shift control device and a shift control method of a vehicular automatic transmission that performs a coast downshift by engagement switch between a release-side engagement element and an element-side engagement element at a time of deceleration of a vehicle, it is determined whether or not there is a driver's intention to decelerate the vehicle during the coast downshift. If an affirmative determination is made regarding the intention to decelerate the vehicle, the rise of engagement pressure of the engagement-side engagement element is stopped so as to cause the coast downshift not to progress. If a negative determination is made regarding the intention to decelerate the vehicle while the rise of the engagement pressure has been stopped, the engagement pressure of the engagement-side engagement element is raised again so as to cause the coast downshift to progress.

REFERENCES:
patent: 6626797 (2003-09-01), Shiiba et al.
patent: 6740005 (2004-05-01), Watanabe et al.
patent: 7393305 (2008-07-01), Yamada et al.
patent: 10-122357 (1998-05-01), None
patent: 2001-65680 (2001-03-01), None
patent: 2003-269601 (2003-09-01), None
patent: 2005076782 (2005-03-01), None
Translation of JP 10122357 (Information disclosure statement prior art).

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