一种电动汽车电液制动促动系统

Electro-hydraulic Braking Actuating System of Electric Vehicle

为了使电动汽车在制动时回收更多的能量,设计了一种新的电动汽车液压制动促动系统。当电动汽车在低强度制动时,机械摩擦制动和电机的再生制动解耦,此时制动力完全由电机再生制动力提供,既能保证制动安全性又能高效回收制动能量。在高级工程系统仿真建模环境(AMESim)下,建立了该制动促动系统的仿真模型,并根据设计方案搭建了实物试验台架。仿真和试验结果均表明:该制动促动系统有一定的合理性。

To make the electric vehicle recover more energy during braking,a new hydraulic braking actuating system of electric vehicle was designed. When electric cars were braked in low strength,the mechanical friction braking force and motor regenerative braking force were decoupled. At this time,the braking force was completely provided by the motor regenerative braking force,which ensures the braking safety and efficient recovery of braking energy. The simulation model of the actuation system was established based on the advanced modeling environment for performing simulation of engineering systems( AMESim). According to the design scheme,the physical experiment platform was set up. The simulation results and experimental results show that the braking actuating system is reasonable.