A switched-reluctance motor/generator for mild hybrid vehicles

Author

Watterson, Peter A. ; Wu, Wei ; Kalan, Bruce A. ; Lovatt, Howard C. ; Prout, Glen ; Dunlop, John B. ; Collocott, Stephen J.

fYear

2008

fDate

17-20 Oct. 2008

Firstpage

2808

Lastpage

2813

Abstract

An optimised switched reluctance motor/generator for a mild hybrid electric vehicle is reported. The machine is designed to fit over a torque converter with no addition to the drive train length, while eliminating the starter motor, alternator and flywheel. Measured static torque shows excellent agreement with the torque calculated by finite element analysis. The initial starting torque specification of 300 Nm for given input electrical power is exceeded - 350 Nm is possible for the available 6.0 kW copper loss, representing 26.5 kNm/m³. The effect of a two-step air-gap is examined and found to enable a slight drop in the three-phase torque variability.

Keywords

finite element analysis; hybrid electric vehicles; losses; reluctance generators; reluctance motors; starting; torque convertors; copper loss; finite element analysis; mild hybrid electric vehicle; power 6 kW; starting torque specification; switched-reluctance generator; switched-reluctance motor; torque converter; two-step air-gap; Alternators; Automotive components; Finite element methods; Flywheels; Hybrid electric vehicles; Hybrid power systems; Reluctance generators; Reluctance motors; Torque converters; Torque measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-3826-6

Electronic_ISBN

978-7-5062-9221-4

Type

conf

Filename

4771233