“无负载加速测功”通常是指发动机只以它自身运动部件的惯性力矩为负载,采取油门全开,突然加速的方法来测定发动机的功率。功率是发动机的一项综合性技术指标,过去一直采用台架试验进行测定,虽然精度高,但结构庞大,造价高,损耗大,操作复杂,难以在维修检验部门推广使用。无负载加速测功正好相反,它无需专门的试验台架,能就车测试,操作极为简便,损耗小,效率高,极适合一些汽车使用及保修单位应用。 “No-load acceleration dynamometer” usually means that the engine only uses the moment of inertia of its own moving parts as the load, and adopts the method of full-throttle and sudden acceleration to determine the power of the engine. Power is a comprehensive technical indicator of the engine. In the past, the bench test was used to determine. Although the precision is high, the structure is huge, the cost is high, the loss is large, and the operation is complicated. Therefore, it is difficult to promote the use in the maintenance inspection department. No-load acceleration test on the contrary, it does not require a special test bench, the car test, the operation is extremely simple, low loss, high efficiency, very suitable for some car use and warranty applications.