Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1991-03-25
1992-07-28
Braun, Leslie A.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74851858, B60K 4110
Patent
active
051332272
ABSTRACT:
In a downshifting of an automatic transmission with an engine being generally maintained in a substantial power generating condition in a vehicle, the output torque of the engine is decreased by an amount prior to a substantial establishment of a torque transmitting route in the automatic transmission for a shifted down speed stage, and then the output torque of the automatic transmission is repetitively monitored at a certain small scanning cycle after the start of establishing the torque transmitting route in the automatic transmission for the shifted down speed stage, while the monitored output torque of the automatic transmission is repetitively compared with a target value determined therefor at the scanning cycle, thereby progressively recovering the output torque of the engine at the scanning cycle by an amount corresponding to the repetitive comparison of the monitored output torque of the automatic transmission with the target value determined therefor so as to cancel a difference in each comparison.
REFERENCES:
patent: 3939738 (1976-02-01), Adey et al.
patent: 4226141 (1980-10-01), Espenschied
patent: 4266447 (1981-05-01), Heess et al.
patent: 4355550 (1982-10-01), Will et al.
patent: 4370903 (1983-02-01), Stroh et al.
patent: 4403527 (1983-09-01), Mohl et al.
patent: 4455890 (1984-06-01), Kuramochi et al.
patent: 4493228 (1985-01-01), Vukovich et al.
patent: 4528869 (1985-06-01), Kubo et al.
patent: 4680988 (1987-07-01), Mori
patent: 4819187 (1989-04-01), Yasue et al.
patent: 4884471 (1989-12-01), Daggett et al.
patent: 4938100 (1990-07-01), Yoshimura et al.
SAE Technical Paper Series-Microcomputer Controlled Automatic Transmissions-Miller-Borg-Warner Research Center, Des Plaines, Ill., pp. 119-131.
Braun Leslie A.
Henn David E.
Toyota Jidosha & Kabushiki Kaisha
LandOfFree
Method of power-on downshifting of automatic transmission interr does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of power-on downshifting of automatic transmission interr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of power-on downshifting of automatic transmission interr will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1681250