Power transmission apparatus

Details Power transmission apparatus Power transmission apparatus

1989-04-17

1991-05-21

Herrmann, Allan D.

Planetary gear transmission systems or components

Electric or magnetic drive or control

Differential drive or control

475152, 475156, 475206, 475210, 475231, 475242, 475249, 475342, 180248, F16H 138, B60K 17344

Patent

active

050171836

ABSTRACT:
To restrict and further promote differential rotation between first and second output shafts, the power transmission apparatus for differentially transmitting a rotative power supplied to an input shaft to two output shafts comprises a differential gear mechanism coupled between the two output shafts; a multiplying mechanism associated with the differential gear mechanism, for detecting and multiplying a differential rotation; a motor coupled to the multiplying gear mechanism, for restricting or promoting the differential rotation by driving the multiplying gear mechanism in either direction; and a controller for controlling rotative direction and torque of the motor by adjusting supply voltage polarity and motor current magnitude. The multiplying mechanism is a strange gear mechanism or a planetary gear mechanism.

REFERENCES:
patent: 1991094 (1935-02-01), Higley
patent: 4074591 (1978-02-01), Dick
patent: 4404867 (1983-09-01), Mueller et al.
patent: 4519272 (1985-05-01), Meier
patent: 4627513 (1986-12-01), Tutzer
patent: 4633735 (1987-01-01), Sakurai et al.
patent: 4702341 (1987-10-01), Taga et al.
patent: 4805486 (1989-02-01), Hagiwara et al.

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