No.1011E 2014Compact/Lightweight - Related Technologies Special Edition Development of Sensorless Motor Current Control with Reduced Size and Weight

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

H. MIYAZAKI : Future Views on EPS System Technological Development, JTEKT ENGINEERING JOURNAL, No.1009E (2012) 19.
T. TAKAHASHI, H. SUZUKI, T. NAKAYAMA, K. FUJIYAMA, S. YAMAGUCHI, M. YAMASHITA, T. GOTO, T. SAITO : Application Technology regarding High-Powered Electric Power Steering System, JTEKT ENGINEERING JOURNAL, No.1006E (2009) 47.
S. KOIKE, T. NIWA, T. TANINAGA : Development of Motor-Integrated ECU, JTEKT ENGINEERING JOURNAL, No.1010E (2013) 33.

Search tag

Download Ranking of