US 2003/0201136 A1Published application

Vehicle steering apparatus

AssigneeKoyo Seiko Co., Ltd.

InventorsMasayuki Ueno, Katsutoshi Nishizaki, Ryouhei Hayama, Naotake Kanda, Shirou Nakano, Takeo Iino, Tomoyasu Kada, Kenji Higashi, Shingo Maeda, Shuuji Kimura, Masaya Segawa, Masayasu Higashi

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Abstract

In a vehicle steering apparatus, a steering actuator is controlled so that the steering angle varies in accordance with the operation of an operating member. A transmission mechanism connects an operating side rotating member that is mechanically connected to the operating member and a vehicle wheel side rotating member that is mechanically connected to the vehicle wheels so that the mutual transmission of rotation is possible. Furthermore, the rotational transmission ratio between the operating side rotating member and the vehicle wheel side rotating member can be varied.

Claims18

Dependent claims

A vehicle steering apparatus comprising:

an operating member;
a steering actuator;
a steering gear which transmits the movement of the steering actuator to the vehicle wheels so that a variation in the steering angle is generated;
a control system which is capable of controlling the steering actuator so that the steering angle varies in accordance with the operation of the operating member;
an operating side rotating member which is mechanically connected to the operating member so as to rotate in accordance with the operation of the operating member;
a vehicle wheel side rotating member which is mechanically connected to the vehicle wheels so as to rotate in accordance with the variation in the steering angle;
and
a transmission mechanism which mechanically connects the operating side rotating member and the vehicle wheel side rotating member to each other so that the transmission of rotation is possible, and so that the ratio of the rotational transmission can be varied.

5 more elements

Dependencies are inferred from the claim text.