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- 저자 : 박윤영(Yunyeong Park) (검색결과 3 건)
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EPS 모터 정압 예압 축계 구조 최적 예압력 도출 연구
박윤영(Yunyeong Park),우성준(Sungjun Woo),이주민(Jumin Lee),허종욱(Jongwook Heo),김상현(Sanghyun Kim),임범준(Beomjun Lim) 한국자동차공학회 2023 한국자동차공학회 학술대회 및 전시회 Vol.2023 No.11
In the case of the axial structure design of an EPS motor, it is important to verify the regulatory setting and satisfaction of design factor items that affect motor performance such as torque ripple, cogging torque, friction torque, and vibration while stably supporting the rotating body when driving. In particular, in the case of bearings supporting the shaft, it is of course important to select the type and structure and capacity of the manufacturer, but how to set the installation environment (pressing and pre-pressing conditions, etc.) is also one of the main design factors that can affect performance. Therefore, it means that the designers experience and judgment in consideration of the implementation of assembly optimal performance is very important to assemble elements such as shafts, rotor cores, bearings, pre-pressure springs, and shaft stop rings that make up the motor axis. In this study, we would like to introduce the results of the analysis of the motor performance impact due to the pre-pressure of the W/W (Wave Washer) that applies pre-pressure to the ball bearing in the EPS motor axis and mention the process to be reviewed in the future..
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MDPS 모터 입력 전류 계측을 통한 실차 장착 환경에서의 온도 추정 기법 및 프로세스 연구
우성준(Seongjun Woo),박윤영(Yunyeong Park),이주민(Jumin Lee) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
In this paper, we would like to introduce an actual vehicle MDPS temperature estimation method that can reduce the cost and schedule of vehicle evaluation while increasing the consistency of the heat-resistant guaranteed temperature verification method. Based on the thermal temperature of the actual vehicle through temperature simulation, the endurance & current profile of the existing finished vehicle and the endurance current profile of the vehicle to be developed are compared to determine the distribution of the temperature of the developed vehicle compared to the existing vehicle during actual MDPS installation and steering. It can be predicted, and based on that information, it is possible to designly judge whether or not the thermal resistance temperature of the part is marginal.
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이승엽(Sungyub Lee),박수주(Suju Park),이치호(Chiho Lee),박윤영(Yunyeong Park) 한국자동차공학회 2018 한국자동차공학회 부문종합 학술대회 Vol.2018 No.6
C-EPS is column type - Electric Power Steering system which is used to support driver’s steer force. In this system, Motor and Worm shaft generate support Torque and amplify torque. To use these separated two parts, connecting parts are also needed. Such as Bearings, Couplers, Rubber Couple ring, etc. Also cause of these connecting parts, Many side effect could occurs. Likewise, Price increase, Efficiency decrease, Increase reaction time. Worm Shaft Integrated Type Motor could be solution to these problem. In this article, We tried to demonstrate side effect of Worm shaft Integrated Type Motor. So We considered deflection of worm shaft, when reducer force applied. And we measured power fluctuation of single Motor, when shaft Axis is tilted. In addition, We used analysis program to analysis friction increase of whole C-EPS system, which might be affected by motor magnet force during shaft axis tilted. And also measured it too. In conclusion, Deflection of worm shaft and Motor’s power fluctuation is available to use. And increase of magnet force in tilted shaft axis doesn’t affect to friction of whole C-EPS system. So side effect of Worm Shaft Integrated Type Motor is reasonable to use in C-EPS. In addition, This type is needed to be verified in C-EPS System. Such as Noise, vibration and etc. And we will do these things in the near future.
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