Journal Article
Parameter Identification of Sled Test Method to Simulate Vehicle Soil Trip Rollover Dynamic Accurately by Numerical Simulation Considering Soil-Vehicle Interaction
2013-04-08
2013-01-0459
FMVSS 226 will become effective on September 1, 2013 with the purpose of mitigating occupant ejections through the vehicle side windows. In order to use deployable counter measures to mitigate ejection, vehicle rollover tests are needed to design deployment algorithms for rollover condtions. Vehicle manufacturers have to define their own test procedures, because FMVSS 226 does not define any rollover test methods. The soil trip rollover test is a vehicle rollover test method in which a vehicle is propelled into a soil pool to measure its rollover characteristics. Some of difficulties in soil trip rollover tests include proper maintenance of soil, for example, under fluctuating humidity and homogeneity of soil in the pool, so as to ensure stable repeatability of test results. Protection of onboard measurement equipment in a test vehicle from soil incursion when the vehicle rolls over can also be a challenge.
