Automatic shift device for an epicyclic change-speed gear having

Details Automatic shift device for an epicyclic change-speed gear having Automatic shift device for an epicyclic change-speed gear having

1988-02-29

1989-03-14

Bonck, Rodney H.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74752C, 74868, F16H 500

Patent

active

048116300

ABSTRACT:
In an automatic shift of an epicyclic change-speed gear, engagement of a reverse gear brake used to shift to reverse gear is blocked until a forward gear clutch used to shift at least one forward gear is disengaged by using the working pressure of the forward gear clutch as a blocking pressure to stress a blocking control element acting upon the valve used for engaging the reverse gear brake.

REFERENCES:
patent: 4262554 (1981-04-01), Ahlen et al.
patent: 4488457 (1984-12-01), Nishimura et al.
"Automatische MB-Getriebe", Typ W3D080/R und W3A110/R, Daimler-Benz AG, Aug. 1977, pp. 23-25.

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