Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1988-11-30
1990-07-24
Diehl, Dwight
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74861, B60K 4106
Patent
active
049427857
ABSTRACT:
In an arrangement for the automatic shifting of an epicyclic speed change transmission, a relatively quickly performed smooth selection operation in starting is achieved by the speed change transmission taking the form of a group gear divided into two transmission sections. In a first selection phase, the one transmission section is stalled with uncoupling from the drive motor and the transmission section connected to the output shaft is held in the driveless state. On reaching the stalled state, the torque transmissibility between the drive motor and output shaft is restored with a smooth flat rise beginning from zero, by pressure control in the shift actuators concerned.
REFERENCES:
patent: 3483771 (1966-06-01), Forster et al.
patent: 4254672 (1981-03-01), Mizuno et al.
patent: 4420994 (1983-12-01), Muller et al.
patent: 4438666 (1984-03-01), Lane
patent: 4495838 (1985-01-01), Gooch
patent: 4495839 (1985-01-01), Morscheck
patent: 4555959 (1985-12-01), Braun
Functional Description Automatic Transmission, Daimler-Benz AG, Stuttgart-Vnterturkheim Zentralkundendienst
Daimler-Benz AG
Diehl Dwight
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