This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Optimization of Single-Point Frontal Airbag Fire Threshold
Technical Paper
2000-01-1009
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SAE 2000 World Congress
Language:
English
Abstract
The relationship of the airbag fire-distribution as a function of impact velocity to the airbag fire-time is studied through the use of an optimization procedure. The study is conducted by abstracting the sensor algorithm and its associated constraints into a simple mathematical formulation. An airbag fire objective function is constructed that integrates the fire-rate and fire-time requirements. The function requires the input of a single acceleration time history; it produces an output depending on the airbag fire condition. Numerical search of the optimal fire threshold curve is achieved through parameterizing this curve and applying a modified simplex search optimization algorithm that determines the optimal threshold function parameters without computing the complete objective function in the parameter space. Numerical results are given to show the effectiveness and potential difficulties with the automatic search scheme. The underlying philosophy and detailed method presented in this paper has the potential to assist in helping to understand the mechanics of the airbag deployment.
Recommended Content
Authors
Topic
Citation
Nusholtz, G., Shi, Y., and Xu, L., "Optimization of Single-Point Frontal Airbag Fire Threshold," SAE Technical Paper 2000-01-1009, 2000, https://doi.org/10.4271/2000-01-1009.Also In
SAE 2000 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V109-6; Published: 2001-09-15
Number: V109-6; Published: 2001-09-15
References
- Nusholtz, G. S. Estimation of OOP from Conditional Probabilities of Airbag Fire-times and Vehicle Responses, SAE paper #98-S5-O16
- Nusholtz, G. S. Estimation of Occupant Position from Probability Manifolds of Air Bag Fire- Times , SAE paper # 980643
- Nusholtz, G. S. The Hybrid IV dummy, to be published
- Nelder J. A. Mead, R. A Simplex Method for Function Minization Computer Journal 7 308 313 1965
- Optimization Toolbox, Matlab“ V5.1, The Math Works, Inc. 1997