Patent
Steering apparatus for vehicle
TLDR
In this paper, the rotational speed of an electric motor was reduced at two stages by the two speed reducers, thereby achieving high output (high speed reduction) with high output.Abstract:
A speed reducer 40 of an electric power steering apparatus is configured as a 2-stage speed reducer equipped with a worm speed reducer 41 adapted to receive rotational torque from an electric motor 30 and output the rotational torque from an output element (worm wheel 412) while reducing rotational speed, and with a planetary-gear-type speed reducer 42 adapted to receive the rotational torque from the output element and output the rotational torque while reducing rotational speed. The rotational speed of the electric motor 30 is reduced at two stages by the two speed reducers, thereby achieving high output (high speed reduction). Speed-reducing elements (a sun gear, planetary gears, a carrier, etc.) of the planetary-gear-type speed reducer 42 are disposed in the interior of the worm wheel 412 of the worm speed reducer 41, thereby implementing compactness.read more
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Patent
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References
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Patent
Steering device with substeering mechanism for vehicle
TL;DR: In this article, a substeering motor was used to cancel torque in a reverse direction to torque received by an input shaft 2 by a motor M2, to prevent a size a mechanism in an engine room from being enlarged of and attain large steering angle control by the substeering mechanism.
Patent
Power steering system for road vehicle has planetary reduction gear on steering column connected to electric motor and includes braking element and has hydraulic system with pump
TL;DR: In this article, a steering wheel is mounted on a steering column with a torque sensor connected to a computer and a planetary reduction gear on the steering column has an electric motor drive, a steering angle sensor and a braking device.
Patent
Improved system for the automatic recovery of play between a worm and worm gear
TL;DR: In this article, an improved system for the automatic recovery of play between a worm and worm wheel is presented, constituted by one or more elastic elements of the cup spring type or the like, acting normally to the axis of rotation of the worm.
Patent
Low-backlash speed-reducing two-stage planetary gearing
TL;DR: In this paper, a low-backlash speed-reducing two-stage planetary gearing is proposed, where the first stage has oblique teeth in each case over the complete width of the tooth profiles which remain the same over the individual teeth, while, in the case of the teeth system in the second stage, the individual tooth edges have a continuously changing profile shift (conical gearwheels).