关键词: 汽车, 优化, 技术, 维护周期, 置信水平

Abstract: On the basis of prevention policy,this paper decides maintenance cycle and part of the normal route by analyzing predetermined confidence leveland and by establishing and solving mathematics model.Meanwhile the notion of optimization is applied to its determination and to its analysis process.By approaches of technique economy,regress probability,and economy probability,revision is made to meet different demands and purposes,thereby the optimized maintenance cycle is achieved

Key words: automobile, optimization, technique, maintenance cycle, confidence level