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Automotive Engineering Commons

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Full-Text Articles in Automotive Engineering

Obstacle Filtering Alogrithm For Control Of An Autonomous Road Vehicle In Public Highway Traffic, Qian Wang, Beshah Ayalew Oct 2016

Obstacle Filtering Alogrithm For Control Of An Autonomous Road Vehicle In Public Highway Traffic, Qian Wang, Beshah Ayalew

Publications

This paper presents an obstacle filtering algorithm that mimics human driver-like grouping of objects within a model predictive control scheme for an autonomous road vehicle. In the algorithm, a time to collision criteria is first used as risk assessment indicator to filter the potentially dangerous obstacle object vehicles in the proximity of the autonomously controlled vehicle. Then, the filtered object vehicles with overlapping elliptical collision areas put into groups. A hyper elliptical boundary is regenerated to define an extended collision area for the group. To minimize conservatism, the parameters for the tightest hyper ellipse are determined by solving an optimization ...


Energy Consumption Modeling And Analyses In Automotive Manufacturing Plant, Lujia Feng, Laine Mears Aug 2016

Energy Consumption Modeling And Analyses In Automotive Manufacturing Plant, Lujia Feng, Laine Mears

Publications

Manufacturing plants energy consumption accounts for a large share in world energy usage. Energy consumption modeling and analyses are widely studied to understand how and where the energy is used inside of the plants. However, a systematic energy modeling approach is seldom studied to describe the holistic energy in the plants. Especially using layers of models to share information and guide the next step modeling is rarely studied. In this paper, a manufacturing system temporal and organizational framework was used to guide the systematic energy modeling approach. Various levels of models were established and tested in an automotive manufacturing plant ...


Energy, Economy, And Environment Analysis And Optimization On Manufacturing Plant Energy Supply System, Lujia Feng, Laine Mears, Cleveland Beaufort, Joerg Schulte Jun 2016

Energy, Economy, And Environment Analysis And Optimization On Manufacturing Plant Energy Supply System, Lujia Feng, Laine Mears, Cleveland Beaufort, Joerg Schulte

Publications

Increasing attention has recently been drawn to energy consumption in manufacturing plants. Facing the challenges from reducing emissions coupled with rising raw material prices and energy costs, manufacturers are trying to balance the energy usage strategy among the total energy consumption, economy, and environment, which can be self-conflicting at times. In this paper, energy systems in manufacturing environments are reviewed, and the current status of onsite energy system and renewable energy usage are discussed. Single objective and multicriteria optimization approaches are effectively formulated for making the best use of energy delivered to the production processes. Energy supply operation suggestions based ...