Title :
A brushless motor drive with sensorless control for commercial vehicle hydraulic pumps
Author :
Bonfè, Marcello ; Bergo, Michele
Author_Institution :
ENDIF- Dept. of Eng., Univ. of Ferrara, Ferrara
fDate :
June 30 2008-July 2 2008
Abstract :
The paper describes the electronic design of a brushless motor drive powering a hydraulic Motor-Pump-Unit (MPU) for automotive applications. The full MPU consists of a Permanent Magnet (PM) brushless motor, a three-phase MOSFET inverter with digital control and a gear pump for the hydraulic circuit. The MPU designed in this project is characterized by low voltage supply and high hydraulic output power, so that the choice of power electronic components have been particularly challenging, mainly because of conflicting requirements in terms of current rating and total cost. The experimental results obtained with a first MPU prototype demonstrate that the weak point of the complete mechatronic design is related to the volumetric efficiency of the gear pump, while the power converter and brushless motor assembly is characterized by an acceptable efficiency.
Keywords :
automotive components; brushless machines; digital control; hydraulic systems; invertors; motor drives; permanent magnet motors; power MOSFET; pumps; brushless motor drive; commercial vehicle hydraulic pumps; digital control; gear pump; hydraulic circuit; hydraulic motor-pump-unit; permanent magnet brushless motor; power converter; power electronic components; sensorless control; three-phase MOSFET inverter; Automotive applications; Brushless motors; Digital control; Gears; Inverters; Low voltage; MOSFET circuits; Magnetic circuits; Sensorless control; Vehicle driving;
Conference_Titel :
Industrial Electronics, 2008. ISIE 2008. IEEE International Symposium on
Conference_Location :
Cambridge
Print_ISBN :
978-1-4244-1665-3
Electronic_ISBN :
978-1-4244-1666-0
DOI :
10.1109/ISIE.2008.4677237
