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Patent

Electronically commutated electric motor

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TLDR
In this paper, an electronically commutierter electric motor (20) has a rotor (28) and a stator (26), where the stator during operation from an energy source (47) of electrical current (i1) for the drive of the motor(20) can be fed, which can have different values at the start of the engine.
Abstract
Ein elektronisch kommutierter Elektromotor (20) hat einen Rotor (28) und einen Stator, mit einer Statorwicklungsanordnung (26), wobei dem Stator im Betrieb aus einer Energiequelle (47) elektrischer Strom (i1) fur den Antrieb des Motors (20) zufuhrbar ist. An electronically commutated electric motor (20) has a rotor (28) and a stator with a stator winding (26), wherein the stator during operation from an energy source (47) of electrical current (i1) for the drive of the motor (20) can be fed , Der Motor hat einen digitalen Rechner (36), der zur Steuerung des regularen Starts des Motors (20) ausgebildet ist und dem ein PWM-Generator (84) zugeordnet ist. The motor has a digital computer (36) which is adapted to control the regular start of the engine (20) and is assigned to the a PWM generator (84). Der Motor (20) ist fur Betrieb in einem Parameterbereich ausgelegt, welcher mindestens einen variablen Parameter, z. B. die Betriebsspannung oder die Umgebungstemperatur, umfasst, der beim Start des Motors (20) unterschiedliche Werte haben kann. The motor (20) is designed for operation in a parameter range which at least one variable parameter z. B. the operating voltage or the ambient temperature covers, which can have (20) different values ​​at the start of the engine. Der Mikrocontroller (36) ist zur Ausfuhrung folgender Schritte ausgebildet: Nach dem Einschalten des Motors (20) wird, vor dem Beginn des regularen Starts, wahrend einer ersten Phase (T1) der der Statorwicklungsanordnung (26) zugefuhrte Strom (i1) mit einem vorgegebenen, von dem mindestens einen variablen Parameter abgeleiteten Tastverhaltnis (pwm) gesteuert, um einen Start des Motors (20) zu bewirken; The microcontroller (36) is configured to perform the following steps: After switching on the motor (20) is, before the start of the regular start, during a first phase (T1) of the stator winding (26) supplied current (I1) given with a , controlled by the at least one variable parameter derived duty cycle (pwm), to effect a start of the engine (20); anschliesend an die erste Phase (T1) wird, wenn sich der Rotor (28) dreht, der regulare Start des Motors (20) durchgefuhrt. Subsequently, to the first phase (T1), when the rotor (28) rotates, the regular start of the engine (20) is carried out.

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Citations
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Patent

Method for starting a drive motor of an auxiliary assembly of a motor vehicle, and drive motor of an auxiliary assembly of a motor vehicle

TL;DR: In this article, an electronically commutated, brushless drive motor with a motor stator and a permanent magnet motor rotor was used to start an auxiliary assembly of a motor vehicle.
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Method and device for operating an electronically commutated electric machine

TL;DR: In this article, a method for operating an electronically commutated electric machine is described, having the following steps: Activating a driver circuit in accordance with a commutation schema by switching power semiconductor switches (32, 33), applying a pulse width modulation to the switching of the power SUs, and limiting a pulse control factor of the pulse width modulation to a threshold value.
References
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Patent

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Shinba Kaoru
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