The HyHIL by D2T, in partnership with IFP, Renault, the Laboratoire de Génie électrique de Grenoble, and LMS Imagine, is a virtual hybrid test platform that uses a suite of generic tools to reproduce and assess the complex architectures of hybrid vehicles. The physical modeling of the components is done on the LMS Imagine.Lab AMESim simulation platform. Piloting of the powertrain test bench and model execution are based on the real-time functionalities of D2T’s MORPHEE 2 test bench supervisor. Supported by the Mov'eo competitiveness cluster and FUI Fund, HyHIL has validated three hybrid architectures: pure thermal mode, with simulation of an alternator-starter; stop and start mode, with simulation of the engine’s frequent stop/start phases; and hybrid mode, with simulation of electric propulsion, energy recovery during deceleration phases, and battery recharging. These architectures have been tested over the course of several standard driving cycles using an energy supervisor developed by IFP.For more information, visit booth 527 at the SAE 2009 World Congress.