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.
申请公布号
WO2008097614(A1)
申请公布日期
2008.08.14
申请号
WO2008US01635
申请日期
2008.02.07
申请人
CATERPILLAR INC.;LEAGUE, RICHARD, B.;GROVE, JOSEPH, A.;KABRICH, TODD, R.
发明人
LEAGUE, RICHARD, B.;GROVE, JOSEPH, A.;KABRICH, TODD, R.