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피지컬 RLD와 버추얼 RLD 사이의 휠포스 코릴레이션 향상을 위한 베리에이션 스터디
민병호(Byoungho Min),이육희(Yukhee Lee),이진세(Jinse Lee) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
These days, the road simulation tests in the laboratory have become a common regeneration test method within the automotive industry for evaluation and validation of vehicle durability performance. Also, all industries are rapidly changed according to the customer needs and try to do their best to apply the customer needs. So, the key of automotive industry is the reduction of the development period to adapt to the speedy change of their needs. To do this, many automotive companies try to develop RLM (Road to Lab to Math) process method. It results in extending the role of CAE (Computer Aided Engineering) and CAT (Computer Aided Testing). These works are focused on rapid test results and good correlation with virtual RLDA between physical Model and Virtual Model. In this paper, RLM project are correlated between the Proving Ground Vehicle model to Virtual Proving Ground Vehicle model, regenerated by the Braking Event Road (Pitch motion), Lateral Event Road (Roll motion), Pothole Event Road (Vertical motion) and compared the Max/Min, Range analysis between PG measuring data and VPG measuring data at wheel force Fx, Fy, Fz and moment Mx, My on wheel center at every vehicle corner. According to the results, we will evaluate the correlation improvement between pRLDA and vRLDA at the full vehicle simulation test.
버츄얼 & 피지컬 두 모델과 RLD의 코릴레이션을 이용한 서스펜션 다축 재현 시험방법 개선
민병호(Byoungho Min),이진세(Jinse Lee),이육희(Yukhee Lee),양준석(Junsuk Yang) 한국자동차공학회 2015 한국자동차공학회 학술대회 및 전시회 Vol.2015 No.11
This test improvement is applied virtual Road Load Data correlated with physical PG sensor data at 8ch. test rig which is called suspension multi axial test. Up to now, there is no measuring method of acquiring the specific points of rear axle trailing arm area. Because of a constraint condition of CAE modeling, it is impossible to use the local specific points of individual component parts around rear axle. It is more important to be regenerated on individual component strain than 6 degree of freedom on rear wheel force center from a durability point view. Especially, it is more difficult to simulate suspension 8ch. test which is applied torsion beam type rear axle. In this paper, we focused to increase the reliability of 8ch. test according to the correlation between virtual and physical model and RLD about local stress in particular components. A physical RLD Sensor of rear are correlated with the CAE vehicle model at rear axle trailing arm about longitudinal and lateral direction between actual PG data and virtual PG data. Finally, test drive file are regenerated by the half car road simulator test with vRLDA which is correlated with actual sensor model.
민병호(Byoungho Min),양준석(Junsuk Yang),한교진(Kyojin Han) 한국자동차공학회 2012 한국자동차공학회 학술대회 및 전시회 Vol.2012 No.11
These days, the road simulators in the laboratory have become a common tool within the automotive industry for evaluation and validation of vehicle durability performance. Also, all industries are rapidly changed according to the customer needs and try to do their best to apply the customer needs. So, the key of automotive industry is the reduction of the development period to adapt to the speedy change of their needs. These works are focused on rapid test results and good correlation with actual test. In this paper, using the local strain, the test drivefile was regenerated for the full vehicle road simulator and compared the RLDA, target signal. The proper local strain is necessory to generate the drivefile on full vehicle simulation test.
승용차 현가 시스템 내구시험을 위한 가진 입력 신호의 재현에 관한 연구
민병호(Byoungho Min),손성효(Sunghyo Son),허승진(Seung-Jin Heo),박태익(Taeig Park),김영선(Youngseon Kim) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The road simulators in the laboratory have become a common tool within the automotive industry for evaluation of vehicle system durability performance. These simulators need appropriate input signal generation algorithm to realize the actual driving condition due to non-linear vehicle and test rig behaviour. From a control standpoint, the iteration algorithm has proven to be a very effective method for control of complex, multiple degree-of-freedom systems. The performances of iteration algorithm are evaluated based on the variance calculated form the error between the given field data and the regenerated data in the frequency domain. In this paper, the road profile replication algorithm is verified by applying Belgian road to the developed road simulator. The experimental results are included to evaluate the performance of this simulator. This road simulator provides considerable savings in cost, development time, and testing risk during developing automotive components.<br/>
실차 시뮬레이션 시험에서 브레이킹 컴퍼넌트의 로드 투 랩 코릴레이션 향상을 위한 연구
민병호(Byoungho Min),이진세(Jinse Lee) 한국자동차공학회 2018 한국자동차공학회 학술대회 및 전시회 Vol.2018 No.11
These days, the road simulators in the laboratory have become a common tool within the automotive industry for evaluation and validation of vehicle durability performance. Also, all industries are rapidly changed according to the customer needs and try to do their best to apply the customer needs. So, the key of automotive industry is the reduction of the development period to adapt to the speedy change of their needs. To do this, many automotive companies try to develop RLM (Road to Lab to Math) process method. It results in extending the role of CAE (Computer Aided Engineering) and CAT (Computer Aided Testing). These works are focused on rapid test results and good correlation with actual test. In this paper, RLM project are correlated between the Proving Ground Vehicle model to Lab. Vehicle model Vehicle model, regenerated by the Braking Event Road – Pitching Motion and compared the pseudo damage between desired file and rig response file at wheel force Fx, wheel moment My, knuckle and brake caliper local strain.
Lab to ADAMS Model Correlation을 이용한 Full Vehicle Durability Test Drivefile Regeneration 방법 연구
민병호(Byoungho Min),김채원(Chaewon Kim),양준석(Junsuk Yang),한교진(Kyojin Han),강오성(Ohsung Kang) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
These days, the road simulators in the laboratory have become a common tool within the automotive industry for evaluation and validation of vehicle durability performance. Also, all industries are rapidly changed according to the customer needs and try to do their best to apply the customer needs. So, the key of automotive industry is the reduction of the development period to adapt to the speedy change of their needs. To do this, many automotive companies try to develop RLM (Road to Lab to Math) process method. It results in extending the role of CAE (Computer Aided Engineering) and CAT (Computer Aided Testing). These works are focused on rapid test results and good correlation with actual test. In this paper, RLD are correlated with the CAE vehicle model, regenerated by the full vehicle road simulator and correlated the pseudo damage between desired file and rig reponse file.
가상 주행 하중을 이용한 써스펜션 다축 재현 시험 연구
임재철(Jaechul Yim),한교진(Kyojin Han),민병호(Byoungho Min) 한국자동차공학회 2014 한국자동차공학회 부문종합 학술대회 Vol.2014 No.5
This study was applied virtual road load to 8ch. test which is called suspension multi axial reproduction test or half car road simulation test that can reduce vehicle development cost and test duration. Because of the limit of CAE, it was impossible to use virtual road load to 8ch. test for which local stress of individual parts is critical rather than vehicle durability test for which vehicle or wheel movement is used. Especially, it is more difficult to conduct suspension 8ch. test which is used torsion beam type rear axle. In this study, we focused to increase the reliability of 8ch. test and the correlation with other tests using new sensors which were developed to replace local stress in particular components and can be used drive file generation with high efficient and the test result was highly similar to the test which was tested with measured road load data in proving ground, and it provide the basis of application for car program under development. And also, the study can be applied and helpful to the studies for other modules or systems test method improvement which were used virtual load data.
4POST를 이용한 실 차 Wheel Drop mode 재현시험
임준혁(Junhyuk Im),이진세(Jinse Lee),민병호(Byoungho Min) 한국자동차공학회 2016 한국자동차공학회 학술대회 및 전시회 Vol.2016 No.11
The ultimate goal of the automotive test sector is to increase the level of satisfaction of customers, led to deliver the defect-free product through the verification of various customer`s usage. In the field of the durability test in OEM and suppliers have also tried to verify the various consumers’ driving mode using “Simulation test” in the lab. The 4POST test rig is one of the simulation test facility. It can reproduce vertical direction of the 4 corners. Durability simulation test has been used for evaluating the developing vehicle or system during vehicle developing process. The 4POST simulation test is also used for durability verification focus on a consumer unexpected operation. In this study, one of the reproduction method is suggested, that is a kind of customer`s abnormal operation mode and has not been included in the standard durability verification mode. The event mode is “Wheel Drop Mode”. It is caused by rebound force of the wheels.