Method of using a PTO clutch for auxiliary load measurement

Details Method of using a PTO clutch for auxiliary load measurement Method of using a PTO clutch for auxiliary load measurement

2007-08-07

2007-08-07

Ho, Ha (Department: 3681)

Interrelated power delivery controls, including engine control

Clutch control

Condition responsive control

C477S107000

Reexamination Certificate

active

11196132

ABSTRACT:
A method is provided wherein when an auxiliary device is being powered by the PTO driveline the PTO clutch is periodically slowly ramped down in pressure until slippage is detected in the clutch. Slippage is determined by monitoring the shaft speed into the clutch as well as the shaft speed downstream of the clutch. By determining the commanded pressure where slippage occurred, the equivalent engine power that is going to the auxiliary function is calculated. With this information, the proportion of the engine load signal that is going to the auxiliary function versus the drive wheels is determined. After slip is detected in the PTO clutch, pressure is ramped back up in the clutch so as to minimize the amount of slippage.

REFERENCES:
patent: 4132133 (1979-01-01), Ballendux
patent: 4542801 (1985-09-01), Richards et al.
patent: 5001941 (1991-03-01), Nemoto
patent: 5058455 (1991-10-01), Nemoto et al.
patent: 5429005 (1995-07-01), Fukui et al.
patent: 6022292 (2000-02-01), Goodnight
patent: 6729459 (2004-05-01), Reinards et al.

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