Assessment by Simu ation of Benefits of New HEV Powertrain Configurations

Abstract

During the past couple of years, numerous powertrain configurations for Hybrid Electric Vehicles (HEV) have been introduced into the marketplace. The current dominant architecture is the power-split configuration with the input split (single-mode) from Toyota and Ford. General Motors (GM) recently introduced a two-mode power-split configuration for applications in sport utility vehicles. Also, the first commercially available Plug-In Hybrid Electric Vehicle (PHEV) - the GM Volt - was introduced into the market in 2010. The GM Volt uses a series-split power-train architecture, which provides benefits over the series architecture, which typically has been con-sidered for Electric-Range Extended Vehicles (E-REV). This paper assesses the benefits of these different powertrain architectures (single-mode versus multi-mode for HEV) (series versus GM Voltec for PHEV) by comparing component sizes, system efficiency and fuel consumption over sev-eral drive cycles. On the basis of dynamic models, a detailed component control algorithm was devel-oped for each configuration. The powertrain components were sized to meet all-electric-range, performance and grade-capacity requirements. This paper presents and compares the impact of these different powertrain configurations on component size and fuel consumption. © 2013, IFP Energies nouvelles.