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자동차용 동력전달장치의 파킹 시스템 오용차속 검증 방법 개선에 관한 연구
김주연(Jooyeon Kim),정우현(Woohyeon Jeong),박찬서(Chanseo Park),박경민(Kyungmin Park) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6
In the 21st century, the driving system of automobiles is changed gradually from internal combustion engines to electric vehicles. As for many mechanical devices are disappearing due to Electrification in the development trend of existing vehicles, but parking systems in charge of safety functions still exist. In the past, the purpose of the vehicle safety function was to operate the p-range due to the mistake of driver while driving the vehicle, but it is currently designed to safely stop the car if the motorized system is inoperable. At this time, a phenomenon called ratcheting occurs in the parking system, and the moment when the parking gear and the sprag are engaged is called a lock vehicle speed. Previous design and simulation review methods had errors in the calculation of the lock speed. To solve this problem, developing an automatic parameter calculation toolkit for locking speed in parking system, and modifying the simulation method. It was compared with test data to confirm the improvement effect of the design toolkit and analysis results.