Hydraulic pressure control system for automatic transmission

Details Hydraulic pressure control system for automatic transmission Hydraulic pressure control system for automatic transmission

1981-09-02

1985-03-05

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, 74865, 74752A, B60K 4106

Patent

active

045023549

ABSTRACT:
A shift shock in an automatic transmission during a change of gear positions is reduced by maintaining a hydraulic pressure (line pressure) equal to the magnitude of a desired hydraulic pressure for a predetermined holding time.

REFERENCES:
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patent: 3680410 (1972-08-01), Sumiyoshi et al.
patent: 3710630 (1973-01-01), Sumiyoashi et al.
patent: 3710651 (1973-01-01), Marumo et al.
patent: 3738199 (1973-06-01), Kubo et al.
patent: 3748926 (1973-07-01), Mohri et al.
patent: 3752015 (1973-08-01), Murakami
patent: 3855880 (1974-12-01), Ishimaru et al.
patent: 3871250 (1975-03-01), Miyauchi et al.
patent: 4106368 (1978-08-01), Ivey
patent: 4283970 (1981-08-01), Vukovich
U.S. Ser. No. 134,986-Kishi et al.
U.S. Ser. No. 136,337-Kishi et al.

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