The Design and Simulation Analysis of Electromechanical Double Acting Pneumatic Brake Valve

With the increasingly severe environmental and energy issues, the application of urban electric buses is more popular, but the battery reserve capacity has restricted the popularity of electric vehicles. Regenerative braking energy recovery system can reduce the energy consumption of the electric vehicle, and increase the mileage of electric vehicle. To solve this problem, this paper designed a new type of mechanical and electrical double acting pneumatic brake valve, as the executive component of the pneumatic brake system, and completed its mathematical modeling and simulation analysis. The model of the pneumatic braking system was established and by using the PID controller, the pressure value of the pneumatic brake system was controlled effectively. The results showed that the model can describe the working process of the brake valve accurately, and had a fast time response and a high control precision.