Internal combustion engine

Sherpa Engineering has been involved in powertrain activities for automotive and truck industries for more than ten years. Acquisition of an extensive expertise through several research and industrial projects with European car manufacturers has allowed us to develop performing tools for internal combustion engine (ICE) modeling and its control. An internal combustion engine is a thermal engine where the energy from combustion is transformed into mechanic energy.

Projects with customers such as PSA, Renault, Volvo Trucks and Valeo illustrate our knowhow in this domain.

Our offer

Thanks to our experience in modeling and control systems, we have developed the PhiSimCombustionEngine library that includes pre-defined models and the necessary components to create combustion engine models and to simulate them.

Our offer encompasses models based on the PhiSimCombustionEngine library, specific training and expert support services:

  • Dynamic modeling of powertrain according to EURO 3,4, 5,6 standard:
    • Turbocharged diesel engine
    • Manual, automatic or automated manual transmission
  • Energy consumption studies and pollutants over dynamic cycles, hot engine and cold engine
  • Control algorithms development for engine and gearbox via model based methods
  • Data analysis, coherence analysis and engine parameters identification
  • State of engine diagnostic

PhiSimCombustionEngine model library


PhiSimCombustionEngine is a model library for simulation and validation of powertrain systems including engine, gearbox, control, actuators and sensors. The library also provides tools to evaluate technological options and alternative architectures.

Our models are compatible with real time constraints, and fulfill the development and validation needs (MIL/RP/SIL/HIL) of an engine control system. Key library features are as follows:

  • Standard model to represent all architecture types (diesel, petrol or gas) with or without turbocharger
  • Cooling system module: this module takes into account all thermal aspects (water, oil, air) and its interactions with the engine
  • Combustion module: it incorporates combustion engine and the interface with thermo-fluid and mechanics; it also evaluates pollutants
  • Fuel system: it is dedicated to fuel powertrain
  • Control module: this simplified module drives air circuit actuators (EGR, Turbo, VVT) and the fuel circuit. Il represents strategies and working modes: slowed mode, cut control, etc
  • Post-treatment module: it represents chemical events inside DPF systems, catalysts and SCR.
  • Utilities: tuning modules, parameters setting and validation
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