What is the method of engine power test?

Engine power test method: 1. Steady-state power measurement: Steady-state power measurement refers to a method of measuring engine power on a dynamometer under the stable state of certain throttle opening and certain speed. 2. Dynamic power measurement: Dynamic power measurement refers to a method of measuring engine power when parameters such as throttle opening and speed change. The characteristics of steady-state power measurement: the advantage is that the results are more accurate and reliable, and are often used for performance testing by engine design, manufacturing, colleges and scientific research units; Disadvantages are time-consuming, labor-consuming, high cost, and the need for a large fixed dynamometer. Characteristics of dynamic dynamometer: The advantages are that the instrument used is light, the dynamometer is fast, the method is simple, and it can be tested on the car with a small no-load dynamometer. For automobile users, it is often necessary to carry out on-board tests to determine the engine power without disassembly; The disadvantage is the low accuracy of power measurement.