Calibration system for hydraulic transmission

Details Calibration system for hydraulic transmission Calibration system for hydraulic transmission

2007-02-08

2010-06-08

Pang, Roger (Department: 3655)

Interrelated power delivery controls, including engine control

Transmission control

Transmission controlled by engine

C477S906000, C701S058000

Reexamination Certificate

active

07731630

ABSTRACT:
A calibration system for calibrating a transmission adjusts a clutch fill pulse width and hold level current for an oncoming clutch via calibration shifts during operation of the associated machine, thus establishing the desired shift timing and duration. The pulse width is calibrated based on torque transfer characteristics of the clutch during a test shift, and the hold level current is calibrated based on the shift duration of a further test shift.

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