Abstract:

In order to comply with the development trend of electronic and electrical（E/E）architecture centralization of automobile chassis， and to solve the problems of the traditional electronically controlled air suspension system， such as narrow adjustment range of suspension stiffness， poor roll stability and so on， this paper takes a new-type of electronically controlled air suspension system with electric active roll stabilizer as the research object. Firstly， using Matlab/Simulink， the vehicle dynamics model with electronically controlled air suspension and the model of electric active roll stabilizer are built， and the integrated control strategy of the new-type electronically controlled air suspension system based on the model design is developed. Then， a parallel multi-core electronic control unit based on the Infineon 32-bit TC275 control chip is designed， and the off-line simulation and hardware-in-the-loop test are conducted under the conditions of steering wheel angle step input and double lane change. The results show that the integrated control strategy of the new-type electronically controlled air suspension system and the parallel multi-core electronic control unit can effectively improve handling stability and anti-roll performance of the vehicle.

Key words: new?type electronically controlled air suspension system, electric active roll stabilizer, integrated control strategy, parallel multi?core electronic control unit, hardware?in?the?loop