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차량 운동에 따른 GMLAN 차량 속도와 실제 차량 속도 비교
원유진,김진원,강성기,Won, Eugene,Kim, Jinwon,Kang, Sunggi 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
Some GM (General Motors) vehicles are using a GMLAN (General Motors Local Area Network) communication protocol for control and diagnostics. The airbag control module uses vehicle speed information from the GMLAN to record the vehicle speed as pre-crash information. In order to use the vehicle speed information for crash reconstruction purposes, it helps to be able to understand the accuracy of the data. The actual vehicle speed is not expected to be the same as the GMLAN indicated speed in some situations like a spin or if there is hard braking. This paper compares the actual vehicle speed and vehicle speed information during specific vehicle maneuvers. Actual vehicle speed is calculated from a GPS sensor, while GMLAN vehicle speed is calculated from transmission output sensor by the Engine control module (ECM). Vehicle maneuvers defined as Mode #1, Mode #2, Mode #3. The Mode #1 maneuver simulates wheel lock-up and skidding f by hard-braking at a specific speed. The Mode #2 maneuver simulates a 90degree turn using a J-turn maneuver at a specific speed. The Mode#3 maneuver simulates a 180 degree turn using a spin type of maneuver at a specific speed. The study then compares the GMLAN speed and GPS speed to see what speed difference exists between them. The results of this paper are applicable to GM vehicles only. This paper catalogs the performance and limitations of two vehicles as useful reference for crash reconstructions where there is a need to understand the speed indicated in the pre-crash section of the SDM data.
소형승용차의 Trip Rollover에 대한 Parameter Sensitivity에 관한 연구
유영선(Youngsun Yoo),강성기(Sunggi Kang),신상하(Sangha Shin),장진희(Jinhee Jang),김인동(Indong Kim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper describes a study on the parameter sensitivity of small size vehicle trip (Curb trip, Soil trip) rollover. The trip rollover simulation model of small size vehicle was developed using ADAMS solver based on MotionView with in-house templates. The simulation model was correlated by VIMF and VHF test for suspension characteristic which effect on the rollover situation. The correlated model was used to simulation trip rollover, and the results of simulation were compared with experimental data obtained from theses test modes. A sensitivity analysis was completed for various parameters like platform initial speed, vehicle CG height, tread, roll inertia and roll stiffness.
박범진(Beomjin Park),최문혜(Moonhuae Choi),강성기(Sunggi Kang) 한국자동차공학회 2013 한국자동차공학회 학술대회 및 전시회 Vol.2013 No.11
Each parts of vehicles have possibility of fail occurrence, which potentially may cause field action on sold vehicles. Each manufacturers are spending astronomical amount of field action cost, and are required to decide correct field action level. Warranty trend analysis is essentially required for decision, which enables best field action level decision by projecting warranty frequency based on each conditions. In the long view, this satisfies customer, keep brand reputation and increase manufacturer"s income. Hereby, method and effect of warranty trend analysis & projection will be reviewed.