Abstract:
A spring return throttle actuator (1) including: an electric, plural-coil (C1, C2, C3), DC motor (2) having an output shaft 4, a throttle return spring (10), a gear transmission (5) connected to the output shaft, a control unit (CPU) adapted to control power supply to the DC motor (2), wherein the spring return throttle actuator (1) has a movement range between closed throttle and opened throttle. The control unit (CPU) is arranged to short-circuit at least two DC motor coils (C1, C2, C3) in order to create a DC motor return resist torque, and the control unit (CPU) includes a movement monitoring circuit being arranged to monitor actuator movement forced by the throttle return spring (10) and resisted by the DC motor return resist torque. The invention also relates to a method and a throttle assembly.
Abstract:
Methods and systems include an actuator (10) adapted to provide drive power and hold power to an external device. A motor (34) provides for driving the external device to a determined position when the motor (34) is energized. A switching circuit is configured to energize the motor (34) with a high voltage to drive the external device to the determined position and energize the motor (34) with a low voltage to hold the external device in the determined position.
Abstract:
A method for controlling a synchronous electric machine (2) comprising a stator and a rotor encompasses the following steps: the machine (2) is operated at a deceleration moment (MP) such that a rotor speed of the machine is reduced; the rotor movement of the machine is monitored, and when a rotation in the opposite direction or a rotor speed (v) of nearly zero with a transition into a blocked mode is detected, at least one electric input variable (I; iu, iv, iw) of an electric stator system of the machine is adjusted in such a way that an effective internal moment (MB) of the machine is generated at the beginning of the blocked mode, said internal moment (MB) being smaller than the deceleration moment (MP). The electric input variable (I; iu, iv, iw) is adjusted in this way until a stable equilibrium between an external moment (MA) affecting the machine and the internal moment (MB) has been reached by moving the rotor and under the influence of said external moment (MA).
Abstract:
Um eine Gebäudetür komfortabler sowohl manuell als auch automatisch mit geringem Energiebedarf betätigen zu können, schafft die Erfindung einen Türantrieb (20) zum Antreiben eines Türflügels (14) einer Gebäudetür mit: einem Motorantriebsaggregat (24), das einen Elektromotor (34) und ein Getriebe zum Koppeln des Elektromotors (34) an den Türflügel (14) aufweist, und einer Motoransteuerung (36), die dazu ausgebildet ist, in einem Selbsthemmungsmodus (39) den Elektromotor (34) in dessen Stillstand derart anzusteuern, dass er einer von dem Türflügel (14) über das Getriebe in den Elektromotor (34) eingeleiteten Bewegungskraft einen erhöhten Widerstand entgegensetzt, weiter umfassend: eine Selbsthemmungsmodus-Schalteinrichtung (40) mittels der ein Benutzer den Selbsthemmungsmodus (39) wählbar einschalten oder ausschalten kann.
Abstract:
A motor assembly that includes a motor (102) having a rotatable shaft (100), a hub (106) coupled to the rotatable shaft (100), the hub (106) having a propeller indexer (118) to receive a propeller (104), when the propeller (104) is present, a sensor trigger (108) rotatable with the shaft (100) and positioned at a propeller offset angle thetaPROP from the propeller indexer (118), and a sensor (110) coupled to the motor and positioned to detect the sensor trigger (108) so that the propeller indexer (118) may be positioned at the propeller offset angle thetaPROP from the sensor (110) through rotation of the shaft (100) so that said sensor (110) is proximate to the sensor trigger (108).
Abstract:
A switched reluctance motor drive system (10) with phase windings (12) and commutator switches (21-23) is provided with a setting device (15) for operating the commutator switches (21-23). In a first condition the setting device (15) operates the switches (21-23) to provide the respective windings (12) with sequentially-occurring conduction periods for normal running of the system (10). In a second condition the setting device (15) operates the switches (21-23) to provide the respective windings (12) with simultaneously occurring conduction periods for braking or hold still of the system (10).
Abstract:
A motor assembly that includes a motor (102) having a rotatable shaft (100), a hub (106) coupled to the rotatable shaft (100), the hub (106) having a propeller indexer (118) to receive a propeller (104), when the propeller (104) is present, a sensor trigger (108) rotatable with the shaft (100) and positioned at a propeller offset angle θ PROP from the propeller indexer (118), and a sensor (110) coupled to the motor and positioned to detect the sensor trigger (108) so that the propeller indexer (118) may be positioned at the propeller offset angle θ PROP from the sensor (110) through rotation of the shaft (100) so that said sensor (110) is proximate to the sensor trigger (108).
Abstract translation:一种电动机组件,包括具有可旋转轴(100)的电动机(102),联接到所述可旋转轴(100)的轮毂(106),所述轮毂(106)具有螺旋桨分度器 118),当螺旋桨(104)存在时,接收螺旋桨(104)的传感器触发器(108)可与所述轴(100)一起旋转并且定位在螺旋桨偏离角度θPROP 螺旋桨分度器(118)和传感器(110),传感器(110)耦合到马达并定位成检测传感器触发器(108),使得螺旋桨分度器(118)可定位在螺旋桨偏移角θPROP sub 通过轴(100)的旋转从传感器(110)接收传感器(110),使得所述传感器(110)靠近传感器触发器(108)。 p>
Abstract:
An actuator comprising a single actuator housing containing within it a motor, a controller, a memory, and a position sensor having an output, a user interface for causing a first threshold value to be stored in the memory, and the controller configured and arranged to stop the motor as a function of the position sensor output and the first threshold value.