4-WD 동력전환장치의 변속 모터 구동부 최적화에 관한 연구A Study on the Shift Motor Driving System Optimization of 4-WD Power Transformation Device
- Authors
- 염광욱; 함성훈; 오세훈
- Issue Date
- 2013
- Publisher
- 한국정밀공학회
- Keywords
- Transfer case; Shift system; Planetary gear; motor; 4-wheel drive; 부변속기; 변속장치; 유성기어; 모터; 4륜구동
- Citation
- 한국정밀공학회지, v.30, no.11, pp 1187 - 1192
- Pages
- 6
- Journal Title
- 한국정밀공학회지
- Volume
- 30
- Number
- 11
- Start Page
- 1187
- End Page
- 1192
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/19399
- ISSN
- 1225-9071
2287-8769
- Abstract
- In the case of 4 wheel drive (4-WD) type car, power switching occurs to 4-WD by operating lever or switch that operates power switching device attached in transfer case which can operate motor by electric signal. So if the RPM of motor is high, power switching will not exactly occur and can cause damage to gear in transfer case according to circumstances. So in this study, we applied 2 level of planet gear type motor spindle of motor drive part of a power train. And conducted decelerating to increase torque to switch power safe and accurately. Also, we researched efficiency of gear by designing reduction gear ratio and gear type and by calculating contact stress and bending strength. Based on researched content, we made drive head of power switching device and a reduction module which uses type that uses motor spindle as sun gear and ring gear as cover.
In the case of 4 wheel drive (4-WD) type car, power switching occurs to 4-WD by operating lever or switch that operates power switching device attached in transfer case which can operate motor by electric signal. So if the RPM of motor is high, power switching will not exactly occur and can cause damage to gear in transfer case according to circumstances. So in this study, we applied 2 level of planet gear type motor spindle of motor drive part of a power train. And conducted decelerating to increase torque to switch power safe and accurately. Also, we researched efficiency of gear by designing reduction gear ratio and gear type and by calculating contact stress and bending strength. Based on researched content, we made drive head of power switching device and a reduction module which uses type that uses motor spindle as sun gear and ring gear as cover.
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