Browse > Article
http://dx.doi.org/10.7467/KSAE.2013.21.1.036

A Study on the Enhancement of the Cooling Structure for In-wheel Motor  

Kim, Dae Geon (Green Car Powertrain R&D Division, Korea Automotive Technology Institute)
Kim, Sung Chul (Green Car Powertrain R&D Division, Korea Automotive Technology Institute)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.21, no.1, 2013 , pp. 36-42 More about this Journal
Abstract
Recently, the automobile of the future will be able to substitute an electric vehicle for an internal combustion engine, so the following research is actively in the process of advancing. A traction motor is one of the core parts which compose the electric vehicle. Especially, it is difficult to connect cooling water piping to an in-wheel motor because the in-wheel motor is located within the wheel structure. This structure has disadvantage for closed type and air cooling, so the cooling design of motor housing and internal in-wheel motor is important. In this study, thermo-flow analysis of the in-wheel motor for vehicles was performed in consideration of ram air effect. In order to improve cooling efficiency of the motor, we variously changed geometries of housing and internal shape. As a result, we found that the cooling efficiency was most excellent, in case the cooling groove direction was same with air flow direction and arranged densely. Furthermore, we investigated the cooling performance enhancement with respect to variable geometries of internal in-wheel motor.
Keywords
In-wheel motor; Cooling structure; Performance; Housing; Cooling groove; Internal shape;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 J. H. Jung, S. C. Kim, H. C. Kim, J. P. Won and W. Kim, "A Study on Cooling Performance Analysis of In-Wheel Motor," KSAE Annual Conference Proceedings, pp.3034-3038, 2009.
2 J. H. Jung, S. C. Kim and J. P. Hong, "A Study on Cooling Performance of In-wheel for Green Car," Transactions of KSAE, Vol.20, No.1, pp.61-67, 2012.   과학기술학회마을   DOI   ScienceOn
3 P. Turnbull, J. Kuo, R. Schultz and B. Turner, "Thermal Analysis of an Electric Machine for a Hybrid Vehicle," SAE 2004-01-0565, 2004.
4 Y. Zhang, Y. Shen and W. Zhang, "Optimized Design of the Cooling System for an Articulated Dump Truck's Electric Drive System," SAE 2010-01-0504, 2010.
5 K. Farsane, P. Desevaux and P. K. Panday, "Experimental Study of the Cooling of a Closed Type Electric Motor," Applied Thermal Engineering, Vol.20, No.14, pp.1321-1334, 2000.   DOI   ScienceOn
6 D. R. Lee, "Investigation of Cooling Performance of the Driving Motor Utilizing Heat Pipe," Transactions of KSPSE, Vol.10, No.4, pp.11-16, 2006.   과학기술학회마을
7 D. B. Choi, S. T. Kim , S. H. Jung, J. H. Kim and Y. K. Kim, "Thermal Characteristics of the High Frequency Motor Spindle according to the Bearing Preloads and Cooling Conditions," Transactions of KSMTE, Vol.14, No.6, pp.31- 36, 2005.   과학기술학회마을
8 SC/Tetra Version 7 User's Guide Solver Reference, 2007.