Honda Motor Co., Ltd.

Takamichi Hinohara

Yutaka Horiuchi

Kazutaka Saito

Hitoshi Sasaki

Hideki Imafuku

Tadatsugu Takada

A rear-wheel toe angle variable vehicle changes a toe angle of a rear wheel by a rear toe actuator including: a housing connected to one of a rear-wheel support member and a body; a motor in the housing; a rod connected to the other of the rear-wheel support member and the body; a nut provided in one of the housing and the rod; a screw shaft provided in the other of the housing and the rod; a rotation transmission unit in the housing for transmitting rotation of the motor to the nut or screw shaft; and a rotation amount detection unit for detecting a rotation amount of one of the rotation transmission unit and the nut or screw shaft. The vehicle estimates an operation amount of the rear toe actuator based on the detected amount, and performs feedback control of the motor using the estimated amount.

Rear wheel toe angle variable vehicle

Generally, the toe angle target speed limiting unit (A) adds a toe angle target value &#x3b1;subjected to the primary delay to the result of a min-max processing the tracking error &#x394;&#x3b1;by an adder (A) to output it as a toe angle target value &#x3b1;to a target current calculating unit (). However, in this toe angle target speed limiting unit (A), a switching control (steering direction change control) for generating a maximum value &#x394;&#x3b1;as the toe angle target change quantity &#x394;&#x3b1;and a hold control are made when a neutral position of the toe angle target value &#x3b1;which is prior to the toe angle command value &#x3b1;which is reached.

Growing community of inventors

Wako, Japan

Takamichi Hinohara