发明名称 |
Motor phase current measurement using a single DC bus shunt sensor |
摘要 |
A method and system for obtaining motor current measurements from a DC bus current of an inverter that drives a pulse width modulated electric machine is disclosed. The method may include sensing a DC bus current in a sensor located on a bus of an inverter; sampling the DC bus current via an analog to digital converter wherein the sampling is controlled by sampling timing that is based on a pulse width modulation timing of the inverter; and determining three AC phase currents of the motor from the sampled DC bus current.
|
申请公布号 |
US2006176059(A1) |
申请公布日期 |
2006.08.10 |
申请号 |
US20050052485 |
申请日期 |
2005.02.04 |
申请人 |
DELPHI TECHNOLOGIES, INC. |
发明人 |
MIR SAYEED A.;FISHER PAUL M.;SHAFER DANIEL W.;UNDERWOOD SAMUEL J. |
分类号 |
G01R31/00 |
主分类号 |
G01R31/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|