An integrated development methodology of low noise accessory drive system in internal combustion engines

내연기관의 저소음 보기류구동 시스템을 위한 통합 개발 방법론

Park, Keychun;Kong, Jinhyung;Lee, Byunghyun

  • Received : 2016.05.03
  • Accepted : 2016.05.23
  • Published : 2016.05.31


A systematic development process for the low noise FEAD (Front End Accessory Drive) system is presented by combining CAE (Computer Aided Engineering) and the experimental rig test. In the estimation of the belt drive noise, two main difficulties arise from the high non-linearity due to the stick-slip contacts on the interfaces of the belt and pulleys, and the interaction of the belt drive system with the powertrain rotational parts. In this work, a recently developed analysis method of the belt drive has been employed considering powertrain rotational dynamics. As results, it shows good correlation with the vehicle tests in various operational modes. The established model has been employed to validate the new design improving the stick-slip noise of the problematic FEAD system. Furthermore, the best proposal of FEAD system in terms of functionality [NVH (Noise, Vibration and Harshness), fuel economy, cost. etc.] has been suggested in the concept design stage of new engine through this presented methodology.


FEAD;Belt dive;Belt layout;Stick-slip;NVH;Fuel economy


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