Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-04-15
1993-08-03
Bonck, Rodney H.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
3644241, B60K 4118
Patent
active
052318974
ABSTRACT:
A control apparatus for an automatic transmission calculates the running resistance of a vehicle based on the vehicle acceleration and the torque generated by the engine. When the running resistance exceeds a first prescribed value, it is determined that the vehicle is travelling on an uphill slope on which upshifting should not take place, so the transmission is prevented from upshifting. When the running resistance falls below a second prescribed value, it is determined that the vehicle is travelling on a downhill slope, so the transmission is made to downshift to a gear in which the engine of the vehicle will perform engine braking. When the running resistance is between the first and second prescribed values, the control apparatus controls the transmission based on the vehicle speed and the throttle opening.
REFERENCES:
patent: 3640156 (1972-02-01), Mori et al.
patent: 3684066 (1972-08-01), Kubo et al.
patent: 3702572 (1972-11-01), Wakamatsu et al.
patent: 3713351 (1973-01-01), Sakakibara et al.
patent: 3732755 (1973-05-01), Beig et al.
patent: 3881368 (1975-05-01), Furuhashi et al.
patent: 4350234 (1982-09-01), Suga et al.
patent: 4471437 (1984-09-01), Yoshino et al.
patent: 4648291 (1987-03-01), Klatt et al.
patent: 4713764 (1987-12-01), Klatt
patent: 4823646 (1989-04-01), Yoshimura et al.
patent: 4841815 (1989-06-01), Takahashi
patent: 4854194 (1989-08-01), Kaneko et al.
patent: 4930374 (1990-06-01), Simonyi et al.
patent: 5035160 (1991-07-01), Morita
English-Language Official Action of the German Patent Office.
Bonck Rodney H.
Massey Ryan W.
Mitsubishi Denki K.K.
LandOfFree
Automatic transmission control apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic transmission control apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic transmission control apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2263288