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http://dx.doi.org/10.7467/KSAE.2013.21.5.145

A Study on the Thermo-flow Analysis of ISG (Integrated Starter and Generator) Driving Inverter  

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.5, 2013 , pp. 145-150 More about this Journal
Abstract
Recently, many vehicles have applied electric parts for saving fuel consumption and reducing levels of environmental pollution. ISG (integrated starter & generator) is one of main electric parts and can improve fuel efficiency by using idle stop & go function and regenerative braking system. However, if ISG driving inverter works under the continuously high load condition, it will make the performance and durability of the inverter decreased with rising temperature. In this study, we carried out the analysis on the fluid flow and thermal characteristics of the inverter. As a result, we found the MOSFET of the air cooled inverter was increased up to $116^{\circ}C$ over the limit temperature. On the other hand, the liquid cooled type inverter's MOSFET was decreased by about $17^{\circ}C$ compared to that of the air cooled inverter. Therefore, we verified the feasibility of the liquid cooled type using the present cooling structure.
Keywords
ISG; Inverter; MOSFET; Heat dissipation; Thermo-flow;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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