Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1990-09-25
1991-10-22
Wright, Dirk
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
F16H 6106, F16H 6108
Patent
active
050584618
ABSTRACT:
An automatic transmission shift control device has multiple friction engaging elements, and a shift timing valve port, a port for an underlap operating control-mode. A timing solenoid valve, a throttle sensor, an automobile speed sensor, and a controller operate the timing solenoid valve by signals from the throttle sensor and the automobile speed sensor. A shift map having an overlap area and an underlap area determines position of the shift timing valve within those areas. The shift timing valve being changed independent of the position in the areas determined by the degree of throttle opening and the automobile speed.
REFERENCES:
patent: 4674364 (1987-06-01), Shindo et al.
patent: 4706522 (1987-11-01), Nitz
patent: 4727773 (1988-03-01), Sumiya et al.
patent: 4800497 (1989-01-01), Koori et al.
patent: 4882952 (1989-11-01), Kashihara et al.
patent: 4928557 (1990-05-01), Takada et al.
Aisin Seiki Kabushiki Kaisha
Wright Dirk
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