Rollover and near-rollover kinematics during evasive steer maneuvers
2022-01-1042
03/29/2022
- Event
- Content
- We present 6-degree-of-freedom (6DOF) kinematic data from two SUVs during evasive steer maneuvers that did and did not result in rollovers. The vehicles were instrumented with a GPS speed sensor, tri-axial accelerometers, tri-axial angular rate sensors, and a steering wheel angle sensor. Drone-based and land-based video cameras recorded all tests. Six degree of freedom position/orientation data were extracted from the video using match moving techniques with 3D constraints from laser scans of the test site and vehicles as described in our previous SAE paper (SAE 2020-01-0272). The initial speeds varied from 100 to 124 km/h and the steering input during the tests were similar. We examine the magnitude and timing of the vehicle pre-roll kinematics to identify differences between the roll and non-roll events. We also present the 6DOF kinematics of the rollovers themselves. This study provides valuable insight into factors that predict roll initiation during evasive steer maneuvers.
- Citation
- Young, C., King, D., and Siegmund, G., "Rollover and near-rollover kinematics during evasive steer maneuvers," SAE Technical Paper 2022-01-1042, 2022, .