Smooth upshift control method/system

Details Smooth upshift control method/system Smooth upshift control method/system

1991-05-09

1992-08-11

Bonck, Rodney H.

Machine element or mechanism

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

Preselected indexed position

74858, 74857, 3644241, B60K 4108

Patent

active

051368978

ABSTRACT:
A robust control method/system for smoothing upshifts in an automated mechanical transmission system (12) is provided. During the torque recovery portion of an upshift, engine deceleration (dES/dt) and the difference between current engine speed (ES) and a target engine speed (ES.sub.SYNC) and actuator response times are utilized to sequence the issuance of command output signals to the friction clutch (24) and throttle override (34) actuators.

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SAE Paper No. 881830 presented Nov. 1988 SAE Standard J1922.

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