Planetary gear transmission systems or components – Steering by driving – With planetary reaction brake steering
Reexamination Certificate
2007-12-11
2007-12-11
Le, David D. (Department: 3681)
Planetary gear transmission systems or components
Steering by driving
With planetary reaction brake steering
C074S3880PS, C074S498000, C074S650000, C180S444000
Reexamination Certificate
active
10879599
ABSTRACT:
A vehicle steering device may include a rotatable input shaft, a motor in communication with an input augmentation shaft, the input augmentation shaft and the input shaft sharing a longitudinal axis, and the motor further having a stator stationary with respect to rotation of the input shaft. The vehicle steering device may further include a differential mechanism for providing variable ratio steering to the steering device. The differential mechanism may be a harmonic drive differential or a planetary gearing system. In one embodiment, an external wave generator may be used within the harmonic drive differential gearing mechanism. The vehicle steering device may include a sensorless synchronous machine.
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Boswell Karen A.
Collier-Hallman Steven J.
Menjak Damir
Menjak Ratko
Delphi Technologies Inc.
Le David D.
Smith Michael D.
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