This paper discusses the multidisciplinary design optimization of an engine system to improve the idle refinement of the vehicle and to remove the possibility of interaction between the powertrain system and vehicle systems. The driveline model attempts to provide practical support to engine mount development by providing sufficient detail for design modification assessment in a stable and efficient modelling environment. By applying forced vibration analysis for vehicle systems and mode decouple analysis for the engine mount system to the design of the engine mount, it is shown that an improved optimization result is obtained.
