发明名称 |
CONTROLLER FOR MOTOR DRIVE CONTROL SYSTEM AND VEHICLE INSTALLED WITH THE SAME |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor drive control system capable of suppressing electrical current fluctuations generated due to a switching delay of a control mode when switching from square-wave control to PWM control. <P>SOLUTION: An ECU 300 for controlling a motor drive control system 100 drives an AC motor 200 by controlling an inverter 140 by either a square-wave control mode or a PWM control mode. The ECU 300 comprises: a control mode selecting section 330; and an A/D conversion section 340 that A-D converts a motor current of the AC motor 200. The A-D conversion section 340 operates according to a faster execution cycle than an execution cycle based on an electrical angle of the AC motor 200 when a rotational speed of the AC motor 200 sharply drops in the square-wave mode. The control mode selecting section 330 switches from the square-wave control mode to the PWM control mode according to occurrence of electrical current fluctuations of the motor current in the square-wave control mode. <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012090490(A) |
申请公布日期 |
2012.05.10 |
申请号 |
JP20100237181 |
申请日期 |
2010.10.22 |
申请人 |
TOYOTA MOTOR CORP |
发明人 |
ASHIDA SHINJIRO;YAMADA KATASHIGE;KUTSUNA MASAKI |
分类号 |
H02P27/06;B60L9/18;B60L11/14;H02P6/08;H02P21/00;H02P27/04 |
主分类号 |
H02P27/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|