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A Target Cascading Method Using Model Based Simulation in Early Stage of Vehicle Development
Technical Paper
2019-01-0836
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In the early stages of vehicle development, it is important for decision makers to understand a feasible constraint region that satisfies all system level requirements. The purpose of this paper is to propose a target cascading method to solve for a feasible design region which satisfies all constraints of the system based on model based simulation. In this method, the feasible design region is explored by using both global optimization methods and active learning techniques. In optimization problems, the inverse problem for understanding feasibility for specific designs is defined and solved. To determine the objective functions of the inverse problem, an index representing the achievement level of constraints from system requirements is introduced. To predict feasible regions in the specific design space, a surrogate model of minimized values of the index is trained by using a kriging model. Training data of the surrogate model is sequentially generated based on the expected improvement function to improve accuracy of feasible regions effectively.
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Citation
Shintani, K., Abe, A., and Yamamoto, Y., "A Target Cascading Method Using Model Based Simulation in Early Stage of Vehicle Development," SAE Technical Paper 2019-01-0836, 2019, https://doi.org/10.4271/2019-01-0836.Data Sets - Support Documents
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