Automatic transmission control system and method of operation

Details Automatic transmission control system and method of operation Automatic transmission control system and method of operation

1989-06-08

1991-04-16

Braun, Leslie A.

Machine element or mechanism

Rotary member or shaft indexing, e.g., tool or work turret

Preselected indexed position

74867, 74866, 192 358, B60K 4122, F16H 6114

Patent

active

050073095

ABSTRACT:
A control system for an automatic transmission of a vehicle with a fluid torque converter having a bypass clutch, and a change gear assembly providing a variety of ratio changes on selective actuation of a plurality of friction engaging elements of the change gear assembly. The control system provides the selective engagement of three friction elements and the bypass clutch through the selective energization and de-energization of two solenoid operated valves and the selective actuation and de-actuation of three shift control valves.

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