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    • 163. 发明公开
    • ACTUATOR CONTROL DEVICE AND CONTROL METHOD
    • 执行器控制装置和控制方法
    • EP3109995A1
    • 2016-12-28
    • EP14882816.3
    • 2014-09-19
    • Hitachi Automotive Systems, Ltd.
    • MIYAMOTO, Shogo
    • H02P6/12H02P27/06
    • H02P29/66F04B17/03F04B49/02F04B2203/0201F04B2203/0205F04B2203/0209F16H61/0025H02P6/08H02P23/14H02P29/032H02P29/662
    • The present invention relates to a controller and a control method for an actuator that is driven by a brushless motor. The present invention is to provide the actuator controller for appropriately driving the brushless motor without providing a temperature sensor thereto. The controller for an actuator that is driven by a brushless motor estimates the temperature of the magnet in the brushless motor on the basis of an electric current value and a rotation speed thereof which are obtained by supplying power to rotate the brushless motor in a reverse direction, and limits current flowing through the brushless motor during forward rotation so as to prevent the magnet temperature from rising beyond an allowable maximum temperature. Limiting the current flowing through the brushless motor on the basis of the estimated magnet temperature makes it possible to drive the brushless motor while preventing the magnet temperature from rising beyond the allowable maximum temperature without providing the brushless motor with any temperature sensor for detecting the magnet temperature therein.
    • 本发明涉及由无刷电动机驱动的致动器的控制器和控制方法。 本发明的目的在于提供一种无需设置温度传感器就能够适当地驱动无刷电动机的致动器控制装置。 由无刷电机驱动的致动器的控制器基于通过供应功率以使无刷电机沿相反方向旋转而获得的电流值和其旋转速度来估计无刷电机中的磁体的温度 并限制正向旋转期间流经无刷电动机的电流,以防止磁体温度升高超过允许的最高温度。 基于估计的磁体温度限制流经无刷电机的电流使得能够驱动无刷电机,同时防止磁体温度升高超过允许的最高温度,而不向无刷电机提供用于检测磁体温度的任何温度传感器 在其中。