A Semi-Active, High-Torque, Magnetorheological Fluid Limited Slip Differential Clutch

Author:

Kavlicoglu Barkan1,Gordaninejad Faramarz1,Evrensel Cahit1,Fuchs Alan2,Korol George3

Affiliation:

1. Mechanical Engineering Department, University of Nevada, Reno, NV 89557

2. Chemical and Metallurgical Engineering Department, University of Nevada, Reno, NV 89557

3. Visteon Corporation, 17000 Rotunda Drive, Dearborn, MI 48126

Abstract

The design, development, and performance characterization of a magnetorheological (MR) fluid clutch for automotive limited slip differential (LSD) applications is presented in this study. The controllability of MR fluids provides an adjustable torque transmission and slippage for the LSD application. Three-dimensional electromagnetic finite element analysis (FEA) is performed to optimize the magnetic circuit and clutch design. Based on the results obtained from the FEA, the theoretical torque transfer capacity of the clutch is predicted utilizing Bingham-Plastic constitutive model. The clutch is characterized at different velocities and electromagnet electric input currents. Both the torque transfer capacity and the response time of the clutch were examined. It was demonstrated that the proposed MR fluid LSD clutch is capable of transferring controllable high torques with a fast response time.

Publisher

ASME International

Subject

General Engineering

Reference18 articles.

1. Rabinow, J. , 1951, “Magnetic Fluid Torque and Force Transmitting Mechanism,” US Patent No. 2,575,360.

2. Brakes and Clutches Using ER Fluids;Papadopoulos;Mechatronics

3. Design Analysis and Experimental Evaluation of an MR Fluid Clutch;Lee;J. Intell. Mater. Syst. Struct.

4. Magnetorheological Fluid Based Torque Transmission Clutches;Yalcintas

5. Lampe, D., Thess, A., and Dotzauer, C., 1998, “MR Fluid Clutch–Design Considerations and Performance,” Actuator 98 6th International Conference on New Actuators, Dresden, Germany.

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