The DMF as a virtual sensor: Real-time reconstruction of instantaneous engine and driveline torques

In a co-operative project between the University Karlsruhe (TH) and the company LuK a new method has been developed, which permits an accurate estimation of both the instantaneous engine and driveline torques, based upon the systematic modelling of the dual mass flywheel. Real time knowledge of the instantaneous engine torque allows the realisation of efficient and cost-effective algorithms for control and diagnosis (e.g. cylinder balancing and OBD-misfire detection) within future engine management systems.