Browse Publications Technical Papers 2017-01-1258

Extended Range Electric Vehicle Powertrain Simulation, and Comparison with Consideration of Fuel Cell and Metal-Air Battery 2017-01-1258

The automobile industry has been undergoing a transition from fossil fuels to a low emission platform due to stricter environmental policies and energy security considerations. Electric vehicles, powered by lithium-ion batteries, have started to attain a noticeable market share recently due to their stable performance and maturity as a technology. However, electric vehicles continue to suffer from two disadvantages that have limited widespread adoption: charging time and energy density. To mitigate these challenges, vehicle Original Equipment Manufacturers (OEMs) have developed different vehicle architectures to extend the vehicle range.
This work seeks to compare various powertrains, including: combined power battery electric vehicles (BEV) (zinc-air and lithium-ion battery), zero emission fuel cell vehicles (FCV)), conventional gasoline powered vehicles (baseline internal combustion vehicle), and ICE engine extended range hybrid electric vehicle. The parameters of comparison are: energy consumption, range, life cycle and tailpipe emissions, cost, and customer acceptance. A unique zinc-air battery model was developed using the vehicle modelling software to perform the analysis, with consideration of research data, current market status, and controls logic of the dual energy systems powertrain.
Modelling of the five powertrains was performed using the vehicle modelling software Autonomie. In correspondence with the EcoCar 3 competition [1], the 2015 Chevrolet Camaro was used as the vehicle architecture platform. A powertrain decision matrix was developed to compare these powertrains from the metrics of energy consumption, emissions, customer acceptance, and life cycle cost. Emissions analysis is completed as a ‘Well-to-Wheel’ analysis in order to take into account all sources of emissions production.
As expected, all powertrains devoid of a gasoline internal combustion engine had lower tailpipe and greenhouse gas emissions. Powertrains powered by battery power alone, however, were not able to achieve the total range target, but it will be shown that developments in the metal-air battery will aid in addressing this limitation.


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