Hydraulic pressure control apparatus for vehicular automatic...

Details Hydraulic pressure control apparatus for vehicular automatic... Hydraulic pressure control apparatus for vehicular automatic...

2005-05-17

2005-05-17

Rodriguez, Saul (Department: 3681)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C477S154000, C477S155000, C477S158000, C477S159000, C477S160000, C477S174000, C477S175000, C477S065000, C477S097000, C701S055000, C701S067000

Reexamination Certificate

active

06893379

ABSTRACT:
When it has been determined that control for a predetermined upshift has been started while an accelerator pedal was not being depressed, and that a factor that changes an input torque of an automatic transmission has been generated, an engaging pressure of a predetermined hydraulic frictional engagement device is corrected by a correction amount in accordance with the factor that changes the input torque. As a result, undershooting of an engine speed, as well as shift shock which results from that undershooting, is able to be preferably suppressed.

REFERENCES:
patent: 5020391 (1991-06-01), Aoki et al.
patent: 5443427 (1995-08-01), Ataka et al.
patent: 6149547 (2000-11-01), Oba et al.
patent: 6595888 (2003-07-01), Yuasa et al.
patent: 2001-124192 (2001-05-01), None
patent: 2001-322451 (2001-11-01), None

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