Abstract: The rapid use of gasoline, as well as the increase in environmental damage caused by it, provided a powerful boost to the growth and development of fuel-efficient vehicles. There are hybrid electric vehicles (HEVs) that emerge from their state of instability and prove to be a promising solution to a major empirical problem posed to mother earth. HEVs provide better fuel economy and low CO2 emission that satisfies the environmental rules and reduce the effect of rising fuel prices for consumers. HEVs include an internal Combustion engine as well as an electric motor and generator to draw power from fuel and battery respectively to drive the vehicle. Key components of HEVs are an electric motor, generator, battery, and Internal combustion engine. The effectiveness of HEVs depends largely on these components and their structure. This paper will discuss the use of a simple and extensible QSS toolbox that models hybrid vehicle and control systems. The backwards-looking modelling approach was chosen as it is widely used in the sizing of various components of hybrid electric vehicles. In addition, it is easy to model & understand. Also, this paper mainly focuses on the electric drivetrain of an HEV.

Keywords: Fossil fuel, CO2 emission, Hybrid electric vehicle (HEV), Electric motor, generator, Internal combustion engine, QSS toolbox, Matlab, Matlab Simulink, SOC (State of Charge)

| DOI: 10.17148/IARJSET.2022.9545