Research on the mathematical model and measurement method of instantaneous output power of vehicle driving wheels

Aiming to solve the problem that internal resistance of dynamometer is regarded as a constant force by traditional test method, which causes measurement precision vehicle driving wheel instantaneous output power be insufficient, system for drum movement was constructed, method put forward, and mathematical model established. Model analysis experimental results showed actual reflected more accurately proposed accuracy not affected speed. The torque calculated closer road running vehicle, provided technical support accurate no-dismounting rapid detection simulation dynamometer.