发明名称 |
Motor control device and motor-driven power steering system using the same |
摘要 |
An object of the present invention is to provide a motor control device capable of suppressing voltage composite vector fluctuation to increase the output of a brushless motor, and a motor-driven power steering system using this device. The present control device calculates motor phase current command values based on a target current and a rotor rotational position detection value, calculates voltage command values based on the motor phase current command values and phase current detection values, and supplies phase currents to a three-phase brushless motor based on the voltage command values. The present control device outputs the phase current command values so that the absolute value of a composite vector of respective phase drive voltages is substantially a value √3/2 times the power supply voltage. |
申请公布号 |
US8080957(B2) |
申请公布日期 |
2011.12.20 |
申请号 |
US20070296661 |
申请日期 |
2007.04.11 |
申请人 |
MIURA TOMOHIRO;MAEDA MASAHIRO;IMAMURA YOUSUKE;KOVUDHIKULRUNGSRI LILIT;NSK, LTD. |
发明人 |
MIURA TOMOHIRO;MAEDA MASAHIRO;IMAMURA YOUSUKE;KOVUDHIKULRUNGSRI LILIT |
分类号 |
H02P6/10 |
主分类号 |
H02P6/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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