Because industrial Vehicles drive and work under heavy load condition, the gear ratio of transmission and the stall torque ratio of torque converter is high. Recently, to reduce the cost of vehicle, many people have interest in applying multi-phase torque converter to vehicle and reducing the gear step. In this study, the target performance of vehicle is analyzed and the performance matching of multi-phase torque converter is studied to equip torque converter to heavy duty folk lift vehicle.

Abstract
 1. 서 론
 2. 다상 토크 컨버터의 성능 특성
 3. 엔진과 토크 컨버터의 매칭 성능
 4. 결 론
 후 기
 References

• 임원식(서울과학기술대학교 기계.자동차공학과) | W. S. Lim
• 박성천(여주대학교 자동차과) | S. C. Park Corresponding Author