Automatic transmission system provided with a function of engine

Details Automatic transmission system provided with a function of engine Automatic transmission system provided with a function of engine

1980-01-30

1982-09-21

Krizmanich, George H.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 0055, 192 0094, 192 9, 192 1, 74866, B60K 4120

Patent

active

043502342

ABSTRACT:
An electronically or hydraulically controlled automatic transmission system comprises three means for detecting the release of an accelerator pedal, for detecting the depression of a brake pedal and for detecting an excess of acceleration over a predetermined amount, and only in response to the simultaneous detections in all of those means, which are caused in running down a slope, an automatic engine braking can be effected by the electronically controlled down-shift of the speed range of the vehicle, and further on account of an appropriate delay of the detection of the released accelerator pedal, an unnecessary engine braking can be prevented in the ordinary running which is accompanied by frequent slight variations in acceleration on a flat road or a gradual up or down slope.

REFERENCES:
patent: 3543891 (1970-12-01), Mathers
patent: 3684066 (1972-08-01), Kubo et al.
patent: 3726157 (1973-04-01), Marumo
patent: 3776048 (1973-12-01), Enomoto et al.
patent: 3881368 (1975-05-01), Furuhashi et al.
patent: 3974720 (1976-08-01), Iijima
patent: 4039061 (1977-08-01), Pruvot et al.
patent: 4103764 (1978-08-01), Iijima
patent: 4262783 (1981-04-01), Scarrott et al.

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