Indiana University-Purdue University Indianapolis (IUPUI) / Today transportation is one of the rapidly evolving technologies in the world. With
the stringent mandatory emission regulations and high fuel prices, researchers and
manufacturers are ever increasingly pushed to the frontiers of research in pursuit of
alternative propulsion systems. Electrically propelled vehicles are one of the most
promising solutions among all the other alternatives, as far as; reliability, availability,
feasibility and safety issues are concerned. However, the shortcomings of a fully electric
vehicle in fulfilling all performance requirements make the electrification of the
conventional engine powered vehicles in the form of a plug-in hybrid electric vehicle
(PHEV) the most feasible propulsion systems. The optimal combination of the properly
sized components such as internal combustion engine, electric motor, energy storage unit
are crucial for the vehicle to meet the performance requirements, improve fuel efficiency,
reduce emissions, and cost effectiveness.
In this thesis an application of Particle Swarm Optimization (PSO) approach to
optimally size the vehicle powertrain components (e.g. engine power, electric motor
power, and battery energy capacity) while meeting all the critical performance
requirements, such as acceleration, grade and maximum speed is studied. Compared to
conventional optimization methods, PSO handles the nonlinear constrained optimization
problems more efficiently and precisely.
The PHEV powertrain configuration with the determined sizes of the components has
been used in a new vehicle model in PSAT (Powertrain System Analysis Toolkit)
platform. The simulation results show that with the optimized component sizes of the
PHEV vehicle (via PSO), the performance and the fuel efficiency of the vehicle are
significantly improved.
The optimal solution of the component sizes found in this research increased the
performance and the fuel efficiency of the vehicle. Furthermore, after reaching the
desired values of the component sizes that meet all the performance requirements, the
overall emission of hazardous pollutants from the PHEV powertrain is included in the
optimization problem in order to obtain updated PHEV component sizes that would also
meet additional design specifications and requirements.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/2483 |
| Date | 12 1900 |
| Creators | Yildiz, Emrah Tolga |
| Contributors | Anwar, Sohel, Chen, Yaobin, Izadian, Afshin |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Language | en_US |
| Detected Language | English |
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