Control of a drivetrain

192 clutches and power-stop control – Vortex-flow drive and clutch – With brake

Reexamination Certificate

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Details

C192S003570, C192S003630

Reexamination Certificate

active

07073645

ABSTRACT:
A control of a drive train for a wheel loader having one pressure-medium actuated brake and one transmission operated via a torque converter and at least one forward and/or reverse gear respectively actuated via a power shift clutch and one power take off wherein, when a predetermined value of the power delivered by the transmission to the power take off is exceeded, the pressure of the engaged power shift clutch for the forward or reverse gear is reduced to a residual level.

REFERENCES:
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patent: 4015482 (1977-04-01), Ito et al.
patent: 4598545 (1986-07-01), Harada
patent: 4776751 (1988-10-01), Saele
patent: 5040648 (1991-08-01), Mitchell et al.
patent: 5456333 (1995-10-01), Brandt et al.
patent: 5613581 (1997-03-01), Fonkalsrud et al.
patent: 26 13 300 (1976-10-01), None
patent: 35 10 803 (1986-04-01), None
patent: 197 58 240 (1998-12-01), None
patent: 0 475 918 (1992-03-01), None
patent: WO 95/01520 (1995-01-01), None

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