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    • 8. 发明授权
    • Motor-driven power steering apparatus
    • 电动助力转向装置
    • US06644434B2
    • 2003-11-11
    • US10120294
    • 2002-04-10
    • Hideaki FujiiMasayuki OhkuboYoshiaki TaniguchiYoshihiro Takemoto
    • Hideaki FujiiMasayuki OhkuboYoshiaki TaniguchiYoshihiro Takemoto
    • B62D504
    • B62D5/0472B62D5/0463
    • To provide a motor-driven power steering apparatus which can prevent the play of the handle from being generated at the time of steering and the noises from occurring at the time of a high rotation in a motor-driven power steering. In a motor-driven power steering apparatus mounted as a steering unit for steering running wheels such as front wheels or the like of a motor vehicle, the running wheels are steering-wheel turned by a steering assist force given by a brushless motor and a manual steering force given by operation of a steering handle. In a control circuit portion of this brushless motor, in accordance with a procedure of S1 to S8, the lead angle amount is computed in accordance with a detection signal from a torque sensor, and the rotation number is computed on the basis of a detection signal from the resolver, and the brushless motor is driven at an optimum lead angle obtained by correcting a lead angle amount corresponding to the load in accordance with the rotation number, and thereby it is possible to reduce a torque ripple at the time of a low rotation and reduce an electric current ripple at the time of a high rotation.
    • 提供一种马达驱动的动力转向装置,其可以防止在转向时产生手柄的弹奏并且在马达驱动的动力转向中在高旋转时产生噪音。在电动驱动 动力转向装置安装为用于转向机动车辆的前轮等的行驶轮的转向单元,行驶轮是由无刷电动机给出的转向辅助力和由操作给出的手动转向力所转动的方向盘 的转向手柄。 在该无刷电动机的控制电路部分中,根据S1至S8的过程,根据来自转矩传感器的检测信号计算前导角量,并且基于检测信号计算转数 并且无刷电动机以通过根据转数校正对应于负载的引导角度量而获得的最佳引导角被驱动,从而可以减小低转速时的转矩脉动 并且在高旋转时减小电流纹波。