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Research Tools

The Electrical Systems team at WMG has an established history of developing tools and technicals to support automotive systems and provide benefits that are relevant in real world situations.


WARPSTAR (WARwick Powertrain Simulation Tool for ARchitectures) is a flexible powertrain simulation tool developed using MATLAB/Simulink® modelling environment.This tool was developed in collaboration with approx 50 partner companies during the four year, £37m PARD programme. The tool brings together all currently known hybrid powertrain architectures, as well as conventional and pure electric vehicle powertrain architectures. It has been designed to be used for the whole spectrum of vehicle types from passenger car through to heavy duty applications. The objective has been to base component models on real components so that the results are relevant in the real world.


  • Fuel economy
  • CO2 emissions
  • Battery SoC usage
  • Component operation over drive cycle
  • Can be used (iteratively) as a design software

Usage / Results

  • Architecture selection
  • Component selection
  • Control strategy development and refinement
  • Fuel economy predictions
  • Electric range predictions




WMG developed an additional vehicle simulation tool utilising the multi-domian engineering capabilities of Dymola™ (Dynamic Modeling Laboratory), an object-oriented language based on the Modelica platform. This new tool was based on the well proven WARPSTAR simulation tool with a forward facing model with dynamic capabilities including real world driver behaviour. The use of Dymola allows increased fidelity of component models and greater correlation of simulation with real world driving conditions. The tool is being extended to model vehicle fleets in real world infrastructure and integration of vehicle and home electricity supplies.




Cost Benefit Analysis Toolkit

The Cost Benefit Analysis (CBA) toolkit was developed to provide extensive whole-life costs for hybrid vehicle operation. Due to the limited data on hybrid and electric vehicles, the benefits of hybrid and electric vehicles are difficult to quantify for fleet operators, consumers and manufacturers. Some customer wants to be “Green”, but need guidance on how to achieve this. The CBA tool takes into account depreciation, maintenance and servicing costs, fuel and electricity costs and real world usage profiles to give a summary of results. WMG has developed an Excel™ based spreadsheet enabling end user to model different scenarios for vehicle purchase. The line-by-line analysis provides cost per mile, whole life costs and lifetime CO2 emissions for both individual and fleet use scenarios.