Electrical Simulation Method Research And System Design Of Inertia Tester Bench Rotary Inertia Of Automotive Brake

Brake is one of the main safe parts of vehicle chassis system, and its performance directly affects passengers and pedestrians safety. Therefore, as automotive technology and automotive industry developed, the performance precision requirement of automotive brake performance test equipment is also getting higher and higher.Automotive brake inertia dynamometer is the most direct and effective performance test method excluding road test the real automotive. According to incomplete statistics, before completing project of this paper, China has more than 90 sets of automotive brake inertia dynamometers, of which more than 80 sets dynamometers inertia form adopts flywheel structure, about 10 sets dynamometers inertia form adopts electrical simulation compensation structure (imported). While the current international rotation inertia electrical simulation dynamometer has became a trend of development. As for China, the dynamometer annual sales occupy the world top three, it is imminent to breakthrough this task. Due to the technical blockade, it is not possible to introduce a technology. Therefore, the rotation inertia simulation technology is a key to improve international competitiveness of the products and the level of domestic equipment.This paper is to study the development of rotation inertia electrical simulation of automotive brake inertia dynamometer project, first, briefly summarize basic function, implementation principle of dynamometer; second, detailed analysis rotation inertia simulation basic theory, and complete passenger car inertia electrical simulation dynamometer parameter calculation, main motor selection and design of control system; third, further study the key of electrical simulation realization, whereby the control algorithm, finally adopt the incremental PID controller design plan, and use a trial-and-error method to finish parameter setting work which based on the completed dynamometer of this project, electrical simulation technical index reached the expected requirements; rotation inertia electrical simulation technology has gained initial success, and to put to use, but there are still hard to fix the parameters and other imperfections. At present, is trying to study of fuzzy PID control method, adaptive method, and parameter setting and more flexible control algorithm, in order to make the system to be more perfect.Develop successfully automotive brake inertia dynamometer with electrical simulation function, which fill the gaps in China, and greatly improve international competitiveness of this dynamometer.