Abstract
EcoCAR 2 is a collegiate level Advanced Vehicle Technology Competition which challenges students to re-engineer a General Motors (GM) donated 2013 Malibu Eco as a plug-in hybrid electric vehicle over the course of three years. The competition is organized by Argonne National Laboratory with the U.S. Department of Energy and GM as the headline sponsors. As part of this competition, Mississippi State University (MSU) has designed a pre-transmission parallel PHEV which utilizes a 145 kW permanent magnet brushless DC motor, a 18.9 kWh Li-ion battery, and a GM 1.4 L turbocharged engine which has been tuned for E85 fuel. A supervisory control system has been utilized to interface the hybrid components to the production vehicle, and implements a control strategy enabling charge depleting (CD) and charge sustaining (CS) modes of operation. In order to develop this control strategy and evaluate the vehicle, a simulation model has been constructed in Matlab Simulink for software-in-the-loop (SIL) and hardware-in-the-loop (HIL) simulation. This vehicle model has been constructed using a combination of dSPACE Automotive Simulation Models and MSU developed component models. Each of these component models has been parameterized from manufacturer provided data in order to ensure the accuracy of the vehicle evaluations. An analysis of the vehicle’s fuel economy has been performed using SIL and HIL simulation over four drive cycles for CD and CS modes of operation. A combined fuel economy has been calculated according to SAE Standard J1711 for both E85 and gasoline fuels.
Highlights
EcoCAR 2 is a collegiate level Advanced Vehicle Technology Competition (AVTC) which challenges students to re-engineer a General Motors (GM) donated 2013 Malibu Eco as a plug-in hybrid electric vehicle (PHEV) over the course of three years
The competition is organized by Argonne National Laboratory (ANL) with the U.S Department of Energy (DOE) and GM as the headline sponsors [1]
The two highway drive cycles resulted in lower charge depleting (CD) energy consumption and charge sustaining (CS) fuel consumption when compared with the two city drive cycles
Summary
EcoCAR 2 is a collegiate level Advanced Vehicle Technology Competition (AVTC) which challenges students to re-engineer a General Motors (GM) donated 2013 Malibu Eco as a plug-in hybrid electric vehicle (PHEV) over the course of three years. Each of the three years of the competition follows the GM vehicle development process (VDP) with each year focusing on a specific aspect of the VDP: design, integration, and optimization. The vehicle’s hybrid components have been integrated into the 2013 Malibu through the use of a EVS27 International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium. Software-in-the-loop (SIL) simulation has been utilized for development of the supervisory control strategy and evaluation of the vehicle fuel economy. Hardware-in-the-loop (HIL) evaluations have been performed to verify the results of the SIL simulations
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