Engine and Gearbox Thermal Management Modeling

Sammanfattning: In order to improve the global efficiency of an engine within the French company Groupe PSA, a research axis focuses on gearbox thermalmanagement for a quicker reduction of its own friction losse after a cold start. The principle remains in deriving a little part of the coolant energy towards the gearbox – until now heated by its own internal frictions – as long as the impact on the engine warm-up is low enough for a global final gain. A compromise has then to be found between a gearbox performance enhancement and an engine degradation to get the better global consumption gain in the end. This will be achieved through 1D simulations thanks to the software AMESim, in parallel with Simulink and Matlab. Different cooling circuit architectures and parameters will be tested in a performance and safety point of view to find the best compromise in a pre-research phase.