Simulation on power loss of engine front end accessory belt drive systems

TAO Run; HOU Zhichao

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Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (7) : 790-796.

AUTOMOTIVE ENGINEERING

Simulation on power loss of engine front end accessory belt drive systems

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Abstract

The effects of a power loss to the engine front end accessory belt drive systems were studied using a multi-body dynamic simulation. The mechanical parameters of the belt were found in tests with the system dynamic model then built in the commercial software Adams. The effects of the system power loss were found through a series of simulations for the key design parameters, such as the belt pre-tension, accessory loads, rotating speed belt and pulley acceleration, and fuel consumption, for typical vehicle driving cycles. The results show that the power loss increases monotonically with pre-tension, load and rotating speed and changes little with acceleration. The fuel consumption agrees well with bench tests of a drive system without any accessory loads.

Key words

belt drive / engine front end accessory / rolling resistance / torque measurement

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TAO Run, HOU Zhichao. Simulation on power loss of engine front end accessory belt drive systems[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(7): 790-796

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