HEV驱动系统参数（发动机功率、电动机功率及传动系速比等）对车辆的动力性、燃油经济性和排放性能均有显著影响。
The parameter(engine power electromotor power and ratio of driveline)of powertrain system for HEV have notable influence on dynamical performance economical fuel consumption and emission of vehicle.
软件除具有优化传动系参数的功能外，还能对汽车的动力性能和燃料经济性能进行单独计算。
Except the transmission parameters optimization function, the software also can calculate tractive performance and fuel economy.
该部件在较大程度上决定着摩托车传动系的工作性能。
To a larger extent, it determines the working performance of the motorcycle transmission system.
汽车动力装置主要包括汽车发动机和传动系，它们分别是动力的产生者和传递者，其性能决定了整车的动力性和燃油经济性。
Vehicle Powertrain is composed of engine and transmission system described generator and transmitter respectively, which performance lead to vehicle performance and fuel economy.
通过汽车性能的计算机模拟，发现汽车的动力性和燃油经济性的好坏，主要取决于发动机和传动系的匹配选择。
Through the performance of computer simulative, we can find that the matching of engine and transmission influents the vehicle performance indirectly.
根据其行驶路况制定了该车的性能指标，并根据其性能指标完成了动力传动系的部件选择和参数匹配；
According to its driving condition, it makes the performance index for this vehicle and based which to completes the components'selecting and parameter matching of its power train.
大型底盘测功机是在室内完成汽车经济性试验、动力性试验、排放性能评价与分析、可靠性试验以及与车辆传动系有关的专项试验等所必需的大型设备。
The LVCD is an equipment for testing vehicle oil economy, power performance, engine exhaust emission appraisal and analysis, reliability and some specific items of vehicle power train.
因此，要提高产品的性能，应优化总体方案，协调性能参数，并提高传动系效率。
So, in order to improve the production performance, it should optimize collectivity scheme, correspond performance parameter and improve power train efficient.
因此，要提高产品的性能，应优化总体方案，协调性能参数，并提高传动系效率。
So, in order to improve the production performance, it should optimize collectivity scheme, correspond performance parameter and improve power train efficient.
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