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High-Fidelity Heavy-Duty Vehicle Modeling Using Sparse Telematics Data
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 29, 2022 by SAE International in United States
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Heavy-duty commercial vehicles consume a significant amount of energy due to their large size and mass, directly leading to vehicle operators prioritizing energy efficiency to reduce operational costs and comply with environmental regulations. One tool that can be used for the evaluation of energy efficiency in heavy-duty vehicles is the evaluation of energy efficiency using vehicle modeling and simulation. Simulation provides a path for energy efficiency improvement by allowing rapid experimentation of different vehicle characteristics on fuel consumption without the need for costly physical prototyping. The research presented in this paper focuses on using real-world, sparsely sampled telematics data from a large fleet of heavy-duty vehicles to create high-fidelity models for simulation. Samples in the telematics dataset are collected sporadically, resulting in sparse data with an infrequent and irregular sampling rate. Captured in the dataset was geospatial information, time series measurements, and vehicle-specific metadata from a subset of 96 vehicles from varied geographic regions across North America. A series of custom algorithms was developed to process vehicle data and derive both vehicle model input parameters and representative drive cycles. Derived models provide a basis on which to simulate real-world vehicles and iterate on vehicle aerodynamics, auxiliary power loads, transmission shift schedules, and other parameters to achieve reduced fuel consumption and increase energy efficiency. Notably, these models were developed without the use of expensive field data collection, using only data collected through fleet telematics. Processed representative drive cycles are used to validate the fuel economy of derived models. The models developed through this research allow for more representative vehicle simulations with increased flexibility regarding vehicle-to-vehicle variations.
- Kyle Carow - Western Michigan University
- Nathaniel Cantwell - Allison Transmission Inc.
- Andrej Ivanco - Allison Transmission Inc.
- Jacob Holden - National Renewable Energy Laboratory
- Chad Baker - National Renewable Energy Laboratory
- Eric Miller - National Renewable Energy Laboratory
- Zachary Asher - Western Michigan University
CitationCarow, K., Cantwell, N., Ivanco, A., Holden, J. et al., "High-Fidelity Heavy-Duty Vehicle Modeling Using Sparse Telematics Data," SAE Technical Paper 2022-01-0527, 2022, https://doi.org/10.4271/2022-01-0527.
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