为了进行技术经济计算,必须掌握发动机型式对汽车使用性能影响的有关资料。但在设计试制阶段要得到这样的资料是比较困难的,因为用柴油机代替汽油机的同时,通常要改变发动机功率、最大车速和其它设计参数,还要修正传动系的传动比、排档数等。对装有不同功率的汽油机和柴油机及各种传动系的汽车进行研究,找出了发动机功率和传动系统参数合理匹配的部分关系。但过去没有进行能够得到定量数据的单因素试验工作,而这些数据恰恰是原则性地确定选用这种还是那种型式的发动机所必须的。苏联汽车研究所,在和参加下,为了研究 In order to carry on the technical economic calculation, must grasp the engine type to the automobile use performance influence the related material. However, it is difficult to obtain such information during the design and trial phase. Because diesel engines are used instead of gasoline engines, the engine power, maximum speed and other design parameters are usually changed, and the transmission ratio and the number of gears are also to be corrected. The research on the vehicles equipped with different power gasoline engines, diesel engines and various transmission trains has found out the relationship between the reasonable matching of engine power and transmission system parameters. In the past, however, there was not a single-factor trial that provided quantitative data that was necessary to determine in principle the choice of this or that type of engine. Soviet Automobile Institute, in and participation, in order to study