| 摘要 |
PURPOSE: A motor assembly of electronic stability control is provided to precisely measure a rotating speed of a motor rotary shaft by directly measuring the rotating speed of the motor with a sensor and a counter electro-motive force on an electric circuit in which the motor is connected. CONSTITUTION: A motor assembly (100) of electronic stability control comprises a rotator (120), a housing (130), and a sensor (140). An embossed unit and a recessed unit are alternatively formed to the end circumference. A hole unit (131) capable of accommodating the rotator inside is formed to the housing. The sensor converts changes of a magnetic field into an electric signal as the embossed unit and the recessed unit are alternatively positioned to be close by the rotation of a rotary shaft and senses a rotating speed of the rotary shaft. |
