【摘要】 提出了一种制定自动变速车辆换档规律的图解方法,通过将不同挡位车辆的驱动力曲线和发动机特性曲线绘制在同一图上,对比分析换档前后车辆及发动机的工作状态,可以简便、有效地获得车辆最佳的动力性和经济性换档规律,并能够综合分析车辆各模式下换档规律对车辆性能的影响。本研究解决了国内难以通过分析方法获得自动变速器经济性换档规律的问题,对提高自动变速器性能及开发水平具有重要意义。更多还原

【Abstract】 A graphic method on automatic transmission shift schedules was presented.With the combination of vehicle driven force curves and engine characteristic curves in one graphic,the vehicle and engine status before and after gear shift can be compared and analyzed,the optimistic vehicle dynamic and economic shift schedule can be deducted easily and efficiently,the influence of shift schedules in different modes on vehicle performance can also be analyzed correspondently.The problem,which was difficult to get precise automatic transmission shift schedule through analysis,was solved by this research.This method can provide significant help on the improvement of automatic transmission performance and development.更多还原