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Cogging Torque Target and Design of Motor for EPS
Technical Paper
2006-01-1320
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This project studied a DC brushless motor for an EPS system that would not cause control performance to decline even when the vehicle was operated with a low steering angle at high vehicle speeds.
First, a target for cogging torque was established to ensure that control performance did not decline at high vehicle speed. To set the target, a lane changing simulation using a human-vehicle system model was conducted.
A brushless motor structure was designed to achieve this target value, and the magnitude of cogging torque for this design was predicted using FEM analysis. The issues were found when a prototype of this motor was constructed and the knowledge was obtained during the process of analysis were discussed, in addition the design guidelines were proposed to solve these issues. A new prototype brushless motor was constructed on the basis of these design guidelines, and tests showed it to possess suitable cogging torque for an EPS system.
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Citation
Yoneda, A., Miyoshi, T., and Shimizu, Y., "Cogging Torque Target and Design of Motor for EPS," SAE Technical Paper 2006-01-1320, 2006, https://doi.org/10.4271/2006-01-1320.Also In
SAE 2006 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Number: V115-7; Published: 2007-03-30
Number: V115-7; Published: 2007-03-30
References
- Shimizu Y. Applications of Control Method in the Advance Steering System Steering Reaction Torque and Variable Gear Raito SAE Japan Active Safety Gijutu no Saizensen 2003 6 24 Tokyo
- Shimizu Y. Kawai T. Development of Electric Power Steering SAE Transactions, No. 910014 1991
- Shimizu Y. Fundamentals and the Latest Applications of EPS (Electric Power Steering) Tokoton Wakaru Jidoshan no Modeling to Seigyo 2002 2002 11 1 Tokyo
- Shimizu Y. Kawai T. Yuzuriha J. Improvement in Driver-Vehicle System Performance by Varying Steering Gain with Vehicle Speed and Steering Angle: VGS (Variable Gear-ratio Steering system) SAE Transactions No. 99-PC-480 1999
- Tanimoto S. Nitta I. Shape and Cogging Torque in Permanent Magnet Motors IEE of Japan 1996
- Sakai K. Yoneda A. Shimizu Y. Improvement in Control Performance of Driver-Vehicle System with EPS using Cables to Connect the Steering Wheel and Gearbox Proceedings of AVEC' 02 2002 641 646
- Yoshimoto K. Simulation of Driver-Vehicle System using Steering Behavior Model including Prediction Journal of JSME 71 596 1968 13 18
- Iguchi M. Man-Machine System Kyoritsusyuppan 1970
- Abe M. Vehicle Dynamics and Control Sankaido 1992
- Akiyama Y. Cogging Torque Simulation of Magnetic Pole Concentrated Winding BLDC Motors and Study for Minimization IEE of Japan 2001 11 15
- Onishi K. Cogging Torque Reduction in Permanent Magnet Brushless Motors T. IEE Japan 122-D 4 2002
- Enomoto Y. Kitamura S. Sakai T. K. Ohara Factor Analysis on Cogging Torques in Segment Core Motors T. IEEJ D 124 1 2004
- Tajima F. Kawamata S. Tahara K. Onishi K. Analysis on Cogging Torque in Permanent Magnet Motors IEE of Japan 1995
- Okawa K. Design of Ferrite Magnet Motors TDK 1984