Reliability-based design optimisation of vehicle drivetrain dynamic performance

Daniel Wehrwein and Zissimos P. Mourelatos

International Journal of Product Development, 2008, vol. 5, issue 1/2, 54-75

Abstract: A vehicle drivetrain is designed to meet specific vehicle performance criteria, which usually involve trade-offs among conflicting performance measures. This paper describes a methodology to optimise the drivetrain design including the axle ratio, transmission shift points and transmission shift ratios considering uncertainty. A complete vehicle dynamic model is developed using the bond graph method. The model includes the vehicle, engine, transmission, torque converter, driveline and transmission controller. An equivalent MATLAB Simulink model performs the non-linear dynamic analysis. In order to reduce the computational effort, a time-dependent metamodel is developed based on principal component analysis using singular value decomposition. The optimisation is performed using both the Simulink vehicle dynamic model and the metamodel. A deterministic optimisation first determines the optimum design in terms of fuel economy, without considering variations or uncertainties. Subsequently, a reliability-based design optimisation determines the optimum design under uncertainty. A vehicle example illustrates the design methodology.

Keywords: vehicle drivetrain; bond graphs; reliability based design; optimal design; optimisation; kriging; singular value decomposition; vehicle performance; drivetrain design; dynamic modelling; axle ratio; transmission shift points; transmission shift ratios; uncertainty; simulation; metamodelling; principal component analysis; PCA; fuel economy. (search for similar items in EconPapers)
Date: 2008
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.inderscience.com/link.php?id=16370 (text/html)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ids:ijpdev:v:5:y:2008:i:1/2:p:54-75

Access Statistics for this article

More articles in International Journal of Product Development from Inderscience Enterprises Ltd
Bibliographic data for series maintained by Sarah Parker ().