The invention relates to a product in which torque of a motor (20) is continuously generated when a rotation number of the motor (20) is nearly equal to zero (0), since an output voltage is kept at a constant value in accordance with a rotation position of the motor (20), such a condition that currents are concentrated in a specific element are maintained. As a result, a temperature of the specific element is increased, so that there are problems that a temperature fail of an inverter apparatus may readily occur, and thus, lifetimes of elements are lowered. In a power converter of a motor drive apparatus, windings (LU, LV, LW) are energizing-controlled in such a manner that only 1 phase of a switching circuit is pulse-width-controlled when the motor (20) is under motor locking condition.
Motor drive apparatus and method and electrically driven brake apparatus
Motorantriebsvorrichtung und Verfahren sowie elektrisch betriebene Bremsvorrichtung
Appareil et procédé de commande d'un moteur, et appareil de freinage à commande électrique
2015-10-28
Patent
Electronic Resource
English
IPC: | H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
European Patent Office | 2017
|European Patent Office | 2016
|MOTOR DRIVE APPARATUS, METHOD OF CONTROLLING MOTOR DRIVE APPARATUS, AND ELECTRICALLY POWERED VEHICLE
European Patent Office | 2017
|Motor drive apparatus, method of controlling motor drive apparatus, and electrically powered vehicle
European Patent Office | 2018
|