Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1992-04-03
1993-05-25
Wright, Dirk
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
475216, F16H 6102
Patent
active
052130118
ABSTRACT:
A power transmission device for a vehicle comprises a first power transmitting path for transmitting engine output to a wheel side via a reduction gear, a second power transmitting path for transmitting engine output to the wheel side via a stepless speed change gear mechanism, a path switching clutch for switching between the paths to transmit by one of the paths, a switch-over control part for controlling switch-over operation of the clutch according to a driving condition of the vehicle, and a rotational condition abrupt change restraining part for restraining an abrupt change of a rotational condition of an engine output shaft at switch-over between the paths. The restraining part adjusts to conform rotating speeds of the input and output sides of the clutch to each other at switch-over of the clutch, or conform output torque to the wheel side between before and after switch-over of the clutch. Thus, an abrupt change of rotation of the engine output shaft is restrained to prevent a shock owing to switch-over, and the durability of a friction element is enhanced.
REFERENCES:
patent: 4261229 (1981-04-01), Mizumo et al.
patent: 4628766 (1986-12-01), de Brie Perry
patent: 4872371 (1989-10-01), Fellows
patent: 5020384 (1991-06-01), Kraus
patent: 5074830 (1991-12-01), Perry
patent: 5103693 (1992-04-01), Hibi
Esaki Seiji
Nobumoto Hidetoshi
Sado Osamu
Terauchi Seiji
Ueda Kazuhiko
Mazda Motor Corporation
Wright Dirk
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