Abstract: A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step; calculating the temperature rise of the rotor equivalent body after the motor runs for the time step; then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time. By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus applying the ability of the motor and improving sensitivity.

Abstract: A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step (S10); calculating the temperature rise of the rotor equivalent body after the motor runs for the time step (S20); then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time (S30). By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus playing the ability of the motor and improving sensitivity.

Abstract: In certain exemplary embodiments, an apparatus for rotating one or more vehicle lamps can include a case body, a motor, a printed circuit board, and/or a gear reducing mechanism. The motor can be mounted on the outside of the case body and/or can include a case shell and/or an end cover. The revolving shaft of the motor can be supported on the case shell and/or the end cover of the motor by a first bearing and/or a second bearing respectively. The end of the revolving shaft of the motor can enter into the case body and/or be fixed with a driving gear which can engage with the gear reducing mechanism. The output shaft of the gear reducing mechanism can actuate the vehicle lamp, so as to change the direction of irradiation of the vehicle lamp.