公开(公告)号：US09007009B2

公开(公告)日：2015-04-14

申请号：US14174147

申请日：2014-02-06

Applicant: Denso Corporation

Inventor： Ryuji Omata ,  Takeshi Itoh ,  Hirofumi Kako

IPC: H02P1/00 ,  H02P1/28 ,  H02P3/00 ,  H02P23/00 ,  H02P21/14 ,  B60L15/20 ,  H02P21/00

CPC classification number: H02P23/005 ,  B60L15/20 ,  H02P21/14 ,  H02P21/22 ,  Y02T10/7258

Abstract: In a motor control apparatus for controlling an AC motor with an inverter, a current estimation value is calculated based on a current detection value of one phase of the motor and a rotation angle of the motor. A difference between a current command value related to driving of the AC motor and the current estimation value is calculated. A first voltage command value used to generate a drive signal related to driving of the inverter is calculated based on the difference. A sign of the difference is reversed at a reverse interval when the rotation speed is not greater than a determination threshold.

Abstract translation: 在用逆变器控制交流电动机的电动机控制装置中，根据电动机的一相的电流检测值和电动机的旋转角度来计算电流推定值。 计算与AC电动机的驱动相关的电流指令值与当前估计值之间的差。 基于该差来计算用于产生与逆变器的驱动有关的驱动信号的第一电压指令值。 当旋转速度不大于确定阈值时，差异的符号以相反的间隔反转。