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国外重型卡车的发展是以满足车辆的动力,性、经济性、环保性、安全性的需求为其特征的。这意味着需要提高车辆的净载荷、运输速度和降低油耗。这些要求对变速器的结构设计和特性参数的选择都有明显影响。ZF-Ecosplit变速器的发展历史图1示出了1960-2000年国外重型卡车的发展趋势,表明了这一期间主
The development of foreign heavy trucks is characterized by the demand of satisfying the motive force, economy, environmental protection and safety of vehicles. This means there is a need to increase the vehicle’s net payload, transport speed and fuel consumption. These requirements have a significant impact on the structural design of the transmission and on the choice of characteristic parameters. Development History of ZF-Ecosplit Transmission Figure 1 shows the development trend of foreign heavy trucks from 1960 to 2000, which shows that during this period