Title :
Novel bistable PM electromagnetic clutch unit for wheel EV drive
Author :
Wanli Cai ; Chenglin Gu ; Chenhui Wang
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Tecnology, Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
A novel bistable permanent magnet electromagnetic clutch (BPMEC) unit is introduced into wheel drive so as to turn rigid connection between hub and motor into flexible form, thus remit mechanical and electromagnetic impulsion. Working principle of this idea is conceptually demonstrated. Electromagnetic relations of the BPMEC unit are presented, as well as performance calculated and verified by experiments measured on a prototype. Finally, general design principles are investigated in detail by studying leakage coefficient which is obtained from analytical solution.
Keywords :
clutches; electric vehicles; BPMEC unit; analytical solution; bistable permanent magnet electromagnetic clutch unit; electromagnetic impulsion; general design principles; leakage coefficient; mechanical impulsion; wheel EV drive; wheel electric vehicle drive; Coils; Electromagnetics; Force; Magnetic circuits; Permanent magnet motors; Steady-state; Wheels;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013663
