Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-09-24
1992-11-03
Bonck, Rodney H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
B60K 4106
Patent
active
051598566
ABSTRACT:
An automatic transmission line pressure control system controls line pressure in an automatic transmission equipped with a torque convertor for hydraulically coupling and uncoupling friction coupling elements of the automatic transmission. The automatic transmission line pressure control system regulates line pressure for selectively coupling and uncoupling the friction coupling elements so as to shift the automatic transmission into desired speed gears. The line pressure is forcibly dropped to a level lower than a level present before an occurrence of a manual shift-down operation when a shift-down sensor detects the occurrence of a manual shift-down. The line pressure is then raised as a speed sensor detects an increase in rotational speed transmitted the automatic transmission, thereby shifting the automatic transmission into desired speed gears.
REFERENCES:
patent: 3942393 (1976-03-01), Forster et al.
patent: 4283970 (1981-08-01), Vukovich
patent: 4831896 (1989-05-01), Sakakiyama
patent: 4870877 (1989-10-01), Hasegawa et al.
patent: 5070747 (1991-12-01), Lentz et al.
patent: 5079970 (1992-01-01), Butts et al.
patent: 5085105 (1992-02-01), Wakahara et al.
patent: 5086668 (1992-02-01), Fujiwara et al.
patent: 5092199 (1992-03-01), Goto et al.
Doi Junichi
Kitada Masahito
Takeuchi Koichiro
Yoshimura Hiroshi
Bonck Rodney H.
Massey Ryan W.
Mazda Motor Corporation
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