No.1011E 2014Compact/Lightweight - Related Technologies Special Edition Development of Sensorless Motor Current Control with Reduced Size and Weight |
| Category | TECHNICAL PAPER |
|---|---|
| Author | T. UEDA Advanced Creative Technology Research Dept., Research & Development Headquarters |
| Abstract | Feedback control and failure detection for an electric control unit equipped with a brushless motor is now achieved with three independent, phase-related current sensors. However, these sensors obstruct the downsizing of the electric control unit. Therefore, we developed a new open-loop current control strategy by using a single current sensor achieving the equivalent control accuracy and failure detection capability. This control strategy enables the downsizing and weight reduction of electric control units. |
| Keyword | brushless motor, single current sensor, motor current control, downsizing and weight reduction |
| Reference | H. MIYAZAKI : Future Views on EPS System Technological Development, JTEKT ENGINEERING JOURNAL, No.1009E (2012) 19.
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