摘要

A prototypical serpentine belt drive system, which includes two pulleys, one tensioner and belt, is taken as an example, and slip rate between driven pulley and belt is measured and calculated. A mathematical model for calculating the slip rate is presented, and the slip rate is estimated for the proposed model. The estimated and tested slip rate agrees well, which validate the proposed model and experimental method. Taking density of the belt and frictional factor between belt and pulley as optimized variables, and slip rate as an objective function for optimization, the optimized density and frictional factor are obtained. The estimated slip rate using the optimized variables is reduced greatly compared to the original dada. It is demonstrated that the method for optimially controlling the slip rate proposed in this paper is effective. The measurement and optimization method for slip rate is useful for controlling slip rate between pulley and belt in complex serpentine belt drive systems, such as accessory drive system at engine front end.

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