Machine element or mechanism – Rotary driven device adjustable during operation relative to... – Screw and nut adjusting means
Patent
1981-02-17
1983-06-28
Braun, Leslie A.
Machine element or mechanism
Rotary driven device adjustable during operation relative to...
Screw and nut adjusting means
74866, 3644241, B60K 4104
Patent
active
043899102
ABSTRACT:
A power control system for a motor vehicle engine and fluid pressure automatic transmission wherein the engine power control setting is adjusted to bring about correspondence between the actual driveline power output and the requested power output indicated by the accelerator pedal position. A follow up control system adjusts the transmission throttle valve cable according to the accelerator pedal position except under engine operating conditions associated with reduced fuel efficiency at which time the follow up control system is interrupted and the throttle valve cable is adjusted to initiate a downshift in the transmission. The follow up control system is reestablished when the available power output in the higher gear is sufficient to satisfy the requested power output in an efficient manner.
REFERENCES:
patent: 3890360 (1975-06-01), Pruvot et al.
patent: 3893472 (1975-07-01), Schuster
patent: 4269281 (1981-05-01), Schneider et al.
patent: 4312249 (1982-01-01), Hau et al.
patent: 4335428 (1982-06-01), Miki et al.
"The Porsche 995 Research Car Power Train" by Flegl et al. 10-31-79 (International Automotive Fuel Conference).
"Optimizing the Engine-Transmission System by Means of an Electronically Controlled Gearbox" by Falzoni et al. 1977 Symposium on Automotive Propulsion Systems.
Braun Leslie A.
General Motors Corporation
McKenzie, Jr. Frank H.
Navarre Mark A.
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