MSV制动能量可回收全液压驱动系统控制策略仿真

Control Strategy Simulation of Brake Energy Recyclable Fully Hydraulic Driving System for MSV

为便于实现无人控制和满足重载行驶要求,某型无人扫雷车(unmanned Mine Sweeping Vehicle,MSV)的驱动系统采用泵-马达闭式全液压驱动型式。在构建无人扫雷车可回收再利用制动能量全液压驱动系统的基础上,设计了一种基于扭矩动态规划的控制策略,利用AMESim软件对全系统进行了建模与仿真。结果表明:该控制策略能根据车辆加速、制动扭矩需求和蓄压器储能状态合理控制发动机和泵/马达之间的扭矩分配,进而实现制动能量充分回收和再利用。

A pump-motor close fully hydraulic system is used in a certain type unmanned MSV(Mine Sweeping Vehicle)in order to get better controllability and meet the demand of heavy running load.In this paper,a Brake energy Recyclable Hydraulic driving system(BRH)is designed and the torque control strategy based on logic threshold is put forward.The modeling and simulation of the system is fulfilled by the AMESim software.The results show that the control stragety can appropriately control the torque distribution of the engine,the pump and the motor based on the vehicle acceleration,brake torque demands and charge state of the accumulator so that the vehicle brake energy is fully recyclable and reused.