Direct Instantaneous Force Control With Improved Efficiency for Four-Quadrant Operation of Linear Switched Reluctance Actuator in Active Suspension System

Author

Zhang, Zhu ; Cheung, N.C. ; Cheng, K.W.E. ; Xue, Xiangdang ; Lin, Jiongkang

Author_Institution

Electr. Eng. Dept., Hong Kong Polytech. Univ., Kowloon, China

Volume

61

Issue

4

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

1567

Lastpage

1576

Abstract

A direct instantaneous force control with improved efficiency for the linear switched reluctance actuator (LSRA) is proposed in this paper. Four-quadrant operation is investigated for application in the active suspension system. Force ripple minimization is considered as the primary objective due to the direct impact on passenger ride comfort. An adaptive force distribution function based on the instantaneous force feedback is proposed to achieve a ripple-free system. The choice of switching parameters for improved operation efficiency is examined. The optimal switching positions are online adjusted with respect to the force demand. Simulation and experimental results are presented to verify the effectiveness of the proposed control strategy.

Keywords

adaptive systems; automotive components; force control; force feedback; suspensions (mechanical components); vehicle dynamics; active suspension system; adaptive force distribution function; direct instantaneous force control; force ripple minimization; four-quadrant operation; instantaneous force feedback; linear switched reluctance actuator; passenger ride comfort; Actuators; Distribution functions; Electromagnetics; Force; Force control; Suspensions; Switches; Active suspension system; direct instantaneous force control (DIFC); force distribution function (FDF); linear switched reluctance actuator (LSRA);

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/TVT.2012.2188822

Filename

6156799