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Electronics and Algorithms for Rollover Sensing
Technical Paper
2004-01-0343
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Rollover sensing and discrimination generally requires an algorithm that monitors vehicle motion and anticipates conditions that will lead to a rollover. In general, a deploy command is required in a time frame such that safety measures can be activated early enough to protect the occupants. A rollover discrimination system will typically include internal motion sensors, vehicle signals from other on-board sensors, and a microprocessor to execute the deployment algorithm. A supplemental signal path is used to arm the system, making it less susceptible to single point component failures. In this chapter we explore basic concepts of rollover sensors and system mechanization, rollover discrimination algorithms, and arming methodology. A simulation environment that models the performance of the system across part tolerance, temperature extremes and component age is used to estimate the scope of expected discrimination performance in the field. A representative selection of real-world events is presented, which can be used to calibrate algorithm parameters to ensure immunity margins and deployment timing for the entire system.
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Authors
Topic
Citation
Schubert, P., Nichols, D., Wallner, E., Kong, H. et al., "Electronics and Algorithms for Rollover Sensing," SAE Technical Paper 2004-01-0343, 2004, https://doi.org/10.4271/2004-01-0343.Also In
SAE 2004 Transactions Journal of Passenger Cars: Electronic and Electrical Systems
Number: V113-7; Published: 2005-07-05
Number: V113-7; Published: 2005-07-05
Vehicle Aggressivity and Compatibility; Rollover, Side, and Rear Impact on CD-ROM from the SAE 2004 World Congress
Number: SP-1882CD; Published: 2004-03-08
Number: SP-1882CD; Published: 2004-03-08
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