one of the most important structural components of engine compartment assembly in a car body is the srail. s-rails has significant role in absorbing energy during crash events and therefore it is designed for efficient behavior in such conditions. driving the peak crushing force of the s-rails is one of the important objectives in the design process of such structures. peak crushing force is ex...

We propose to integrate ACO in a Constraint Programming (CP) language. Basically, we use the CP language to describe the problem to solve by means of constraints and we use the CP propagation engine to reduce the search space and check constraint satisfaction; however, the classical backtrack search of CP is replaced by an ACO search. We report first experimental results on the car sequencing p...

• Our data set contains data on 55208 cars [1]. • To each car, 23 attributes are assigned. – correlated (e.g., cylinders and engine size). – anti-correlated (e.g., mileage and registration date). – nearly independent (e.g., mileage and horsepower). • Outliers countervail correlation effects. • Cardinalities differ greatly, e.g.: – 5988 different values for attribute price. – only 17 different v...

This work describes the development and the application of a computer-based vehicle simulator. Such real-time simulation software is currently used in our Department as a tool for optimizing the design of a racing car, namely a single-seat vehicle for the SAE-ATA formula. Being based on our custom multibody library Chrono::Engine, the vehicle simulator exploits a recent formulation founded on v...

Elastomers are finding wider and wider applications throughout industry. For example, the automotive industry is continually attempting to improve fuel efficiency. The resulting reduction in body and engine weights put increasing pressure on suspension and sound insulation designers to meet the car buyers demands for improved ride quality and quiet cars. Designers are no longer satisfied with s...

P ERSONAL transportation offers people freedom, but this choice of freedom creates a conflict with growing environmental concerns and the sustainability of humanity's use of natural resources. Hybrid electric vehicles (HEVs) improve fuel efficiency by optimizing powertrain operation and recovering kinetic energy during braking, hence reducing liquid fuel consumption in the transportation sector...

An important problem is the removal of noise from input measurements and state estimates. Reverse engineering, or approximation, of black boxes within systems is also a highly relevant topic. Methods are given, including least squares methods and a Bayesian inverse approach, to perform these approximations. Real time methods are also considered, for example the Extended Kalman filter. A particu...