Title: A model of giant magnetostrictive actuator used in automobile engine fuel injection system

Authors: Wenguo Wang; Hui Han; Lu Han; Yi Zhang

Addresses: Brilliance Automotive Engineering Research Institute, E&E Section, Shenyang, 110870 PR China ' School of Mechanical Engineering, Shenyang Ligong University, No.6, Nanping Road (Middle), New Hunnan District, Shenyang, 110159, China ' Brilliance Automotive Engineering Research Institute, E&E Section, Shenyang, 110870 PR China ' Brilliance Automotive Engineering Research Institute, E&E Section, Shenyang, 110870 PR China

Abstract: Developing a new type of automobile engine fuel injection system with a smart actuator instead of traditional serve valve controlling is the key source for the engine's fuel-saving and emission reduction. It is critical to solve the environmental protection and energy conservation issues of automobile industry. In this paper, a giant magnetostrictive injector with a giant magnetostrictive actuator is introduced. Working principles of giant magnetostrictive injector used in automobile and giant magnetostrictive actuator are elaborated. According to the actual working situation of giant magnetostrictive actuator in the automobile injector, an output displacement model is established on the basis of Preisach hysteresis theory. Experimental results show that, the agreement degree of output displacement's calculated value and measured value is good. The model provides a very accurate representation for displacement of the giant magnetostrictive actuator used in automobile injector in both the amplitude and frequency of the measured response. The achievements will open up a new way for the application and popularisation of giant magnetostrictive automobile engine injection system. It has an important significance to promote the automobile emission to meet standards.

Keywords: automobile industry; automotive engines; fuel injection; giant magnetostrictive actuators; GMA; modelling; smart actuators; fuel saving; engine emissions; vehicle emissions; environmental protection; energy conservation; displacement.

DOI: 10.1504/IJSCOM.2013.058675

International Journal of Service and Computing Oriented Manufacturing, 2013 Vol.1 No.2, pp.154 - 166

Received: 05 Sep 2012
Accepted: 15 Jan 2013
Published online: 02 Jul 2014 *

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