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    • 1. 发明授权
    • Rear wheel steering apparatus
    • 后轮转向装置
    • US6371239B2
    • 2002-04-16
    • US74568500
    • 2000-12-22
    • HONDA MOTOR CO LTD
    • FURUMI HIROSHISHIRAKAWA KUNIO
    • B62D6/00B62D5/04B62D7/14B62D101/00B62D113/00
    • B62D7/148
    • A rear wheel steering apparatus is disclosed which comprises a pair of threaded members which are threaded in a direction opposite to one another, a pair of slide members engaging with the threaded members, respectively, and movable toward and away from one another due to reverse thread action, a steering shaft for steering a pair of rear wheels, and an electric motor for rotating the threaded members to move the steering shaft coupled to one of the slide members toward one of the rear wheels for thereby steering the rear wheels. In the rear wheel steering apparatus which further comprises control means 40 and 45 for controlling the electric motor, and motor drive means including a bridge circuit composed of four switching elements for enabling forward or reverse rotations of the electric motor on the basis of a signal delivered from the control means, the improvement comprises a trouble compensation circuit 70 constituted independently of the control means 40 and 50 for turning on the switching elements for a given time interval, during a failure taking place in the control means 40 and 50, so as to drive the electric motor in a direction to cause the pair of slide members to move toward each other.
    • 公开了一种后轮转向装置,其包括一对螺纹部件,该螺纹部件沿彼此相反的方向螺纹连接,一对滑动部件分别与螺纹部件接合,并且可由于反向螺纹而彼此相对移动 用于转向一对后轮的转向轴,以及用于旋转螺纹构件以将联接到一个滑动构件的转向轴朝向后轮中的一个移动的电动马达,从而转向后轮。 在还包括用于控制电动机的控制装置40和45的后轮转向装置中,以及包括由四个开关元件组成的桥接电路的电动机驱动装置,用于根据传递的信号使电动机正转或反向旋转 从控制装置,改进包括在控制装置40和50发生故障期间独立于由控制装置40和50构成的故障补偿电路70,用于在给定的时间间隔内接通开关元件,以便在 沿一个方向驱动电动机,使一对滑动构件朝向彼此移动。