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This application enables various kind of actual running tests for an engine transmission using a car body and a tire model. A dynamometer and a model with low inertia and high output can simulate various kinds of road surface conditions, such as hill start or slip-driving on a low friction test road.

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The simulation including engine explosion fluctuation can be performed by the low inertia dynamometer and engine model on driving side. On the intake side, actual running test simulation using a car body and a tire model is performed for the HEV transmission. The battery model controls SOC to manage the battery simulator. It interfaces with each ECU for regenerative cooperation control when braking.