Development of Sensorless Driver of 42V Brushless Motor for Cars Mitsuba Corporation

Format:

Conference/Event

Author/Creator:

Shibuya, Shinji, author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

In this study, we developed a sensorless BLM driver with a BEMF-detecting circuit, which detects the rotor position in a digital way. Through the position-feedback control immediately after the activation of the driver, and the real-time adjustment of lead angle in response to load current, we succeeded in attaining higher accuracy of position detection over a wider operating range, which improved the motor characteristics to the equivalent level to those of the motor with a position sensor. Also, for fuel pump application, high-speed start-up of the BLM within hundreds of milliseconds was successfully achieved

Notes:

Vendor supplied data

Publisher Number:

2005-01-0457

Access Restriction:

Restricted for use by site license