DocumentCode :
496882
Title :
Energy Saving Analysis Using Pulse Width Modulation Techniques Controlling Electromagnetic Clutch in EPS System
Author :
Wu, Jian ; Li, Qiang ; Song, De-Yu ; Yang, Li-Kang ; Cheng, Feng ; Liang, Xiao-juan
Author_Institution :
Sch. of Mech. & Automotive Eng., Zhejiang Univ. of Sci. & Technol., Hangzhou, China
Volume :
1
fYear :
2009
fDate :
18-19 July 2009
Firstpage :
394
Lastpage :
397
Abstract :
This paper deals with energy-saving advantage in a electric power steering system. Currently, electric power steering systems are commonly used for mini-sized vehicles, and reduction of electric energy of the electromagnetic clutch under non-steering condition is important for energy-savings of the EPS system to improve fuel economy. This paper describes a newly designed method using pulse width modulation techniques controlling the electromagnetic clutch and its experimental results. The electromagnetic clutch has lower energy loss with the advantage of changing with the assist characteristic in the electric power steering system. In addition, relationships between the motor current and electromagnetic clutch current in the system are analyzed for the basis of the electromagnetic clutch model, which accurately predicts the electromagnetic clutch transmitting torque through the motor to the steering rack.
Keywords :
automobile industry; clutches; electric current control; electromagnetic devices; fuel economy; pulse width modulation; road vehicles; steering systems; torque control; automotive industries; electric power steering system; electromagnetic clutch; electromagnetic clutch current; electromagnetic clutch transmitting torque; energy saving analysis; fuel economy; mini-sized vehicles; motor current; pulse width modulation techniques; steering rack; Control systems; Design methodology; EMP radiation effects; Electromagnetic analysis; Energy loss; Fuel economy; Pulse width modulation; Space vector pulse width modulation; Steering systems; Vehicles; electric power steering system; electromagnetic clutch; energy-saving; vehicle;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Processing, 2009. APCIP 2009. Asia-Pacific Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-0-7695-3699-6
Type :
conf
DOI :
10.1109/APCIP.2009.106
Filename :
5197079
Link To Document :
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