Control system for inhibiting an aimultareon engaging/applying o

Details Control system for inhibiting an aimultareon engaging/applying o Control system for inhibiting an aimultareon engaging/applying o

1997-05-28

1998-12-08

Ta, Khoi Q.

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

477906, F16H 6100, F16H 6104

Patent

active

058461620

ABSTRACT:
A control system for an automatic transmission which includes a first speed change unit for executing a predetermined speed change by applying/releasing two of a plurality of frictional engagement elements simultaneously and a second speed change unit capable of executing speed changes in at least two higher and lower stages are connected in tandem. The control system comprises: a speed change abnormality detector for detecting an abnormality in the speed change which is executed by applying/releasing the two frictional engagement elements of the first speed change unit simultaneously; and a first speed change unit speed change inhibitor for inhibiting the speed change, which is executed by applying/releasing the two frictional engagement elements in the first speed change unit, when the speed change abnormality is detected by the speed change abnormality detector.

REFERENCES:
patent: 4789937 (1988-12-01), Yasue et al.
patent: 4945482 (1990-07-01), Nishikawa et al.
patent: 5109721 (1992-05-01), Boardman et al.
patent: 5109731 (1992-05-01), Iwatsuki et al.
patent: 5191814 (1993-03-01), Ando et al.
patent: 5665027 (1997-09-01), Oba et al.

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