Title :
A novel microcontroller-based sensorless brushless DC (BLDC) motor drive for automotive fuel pumps
Author :
Shao, Jianwen ; Nolan, Dennis ; Teissier, Maxime ; Swanson, David
Author_Institution :
Power Syst. Applications Lab., STMicroelectronics, Schaumburg, IL, USA
Abstract :
This paper presents a novel back-electromotive-force (EMF) detection method for sensorless brushless DC (BLDC) motor drive systems. By this method, a true back-EMF signal can be directly extracted for each phase without sensing the neutral point of the motor. The method proposed is not sensitive to switching noise and requires no filtering. Good motor performance is achieved over a wide speed range as well. This novel sensing scheme is implemented into a hardware macro cell inside a mixed-signal microcontroller. The proposed microcontroller-based sensorless BLDC drive system has been successfully applied to automotive fuel-pump applications, which require high reliability and intelligence at a low cost.
Keywords :
DC motor drives; automobiles; brushless DC motors; machine control; microcontrollers; pumps; reliability; switching; automotive fuel pumps; back-EMF signal; hardware macro cell; high intelligence; high reliability; microcontroller-based drive; mixed-signal microcontroller; motor performance; sensing scheme; sensorless brushless DC motor drive; Automotive engineering; Brushless DC motors; Commutation; Costs; Filtering; Fuel pumps; Microcontrollers; Motor drives; Voltage; Wounds;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2003.818973
