Slip control system for lock-up clutch of automatic transmission

Details Slip control system for lock-up clutch of automatic transmission Slip control system for lock-up clutch of automatic transmission

1989-01-05

1990-09-04

Braun, Leslie A.

192 clutches and power-stop control

Vortex-flow drive and clutch

With brake

192 33, B60K 4102, F16D 4706

Patent

active

049536796

ABSTRACT:
A slip control system for an automatic transmission of vehicle having fuel cut device for interrupting a fuel supply in a fuel cut zone, including a torque converter, lock-up clutch means provided comprising slip control device for controlling an engaging force of the lock-up clutch ranged from a lock-up condition in which a rotation speed of the input member of the torque converter is substantially the same as the output member of the torque converter to a slip condition in which a predetermined rotation speed difference is produced between the input member and output member, transient control device for controling the engaging force of the lock-up clutch for a predetermined period in connection with a switching operation in the fuel cut device between a fuel supply condition and a fuel cut condition for the engine at a predetermined value between the slip condition and a converter condition in which the lock-up clutch is fully released.

REFERENCES:
patent: 4422353 (1983-12-01), Suga et al.
patent: 4473882 (1984-09-01), Suzuki et al.
patent: 4580671 (1986-04-01), Matsuoka et al.
patent: 4618041 (1986-10-01), Sotoyama et al.
patent: 4669441 (1987-06-01), Okimoto
patent: 4687083 (1987-08-01), Sotoyama et al.
patent: 4763264 (1988-08-01), Okuno et al.

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