What are the detection methods of automobile engine power?

There are two methods to detect the power of automobile engine: 1, and steady-state power measurement (with or without load): steady-state power measurement refers to the method of measuring the engine power on a dynamometer when the throttle opening is fixed and the speed and other parameters are unchanged. 2. Dynamic power measurement (no-load power measurement or no-load power measurement): Dynamic power measurement refers to a method of measuring engine power when parameters such as throttle opening and speed change. According to the principle of power measurement, dynamic power measurement can be divided into two categories: (1) instantaneous power is measured by measuring instantaneous angular acceleration, which is an instrument scheme to obtain instantaneous power by measuring the acceleration of a certain speed during acceleration. (2) Measuring the average power by measuring the acceleration time is a scheme to obtain the average acceleration power by measuring the acceleration time within a certain speed range during the acceleration process.