装甲车辆柴油机冷却系统控制策略研究

Research of Control Strategy of Armored Vehicle Diesel Engine Cooling System

摘要:

建立了具有高低温双循环的装甲车辆冷却系统模型;在分析装甲车辆各部件冷却散热需求的基础上,设计了基于预置MAP与模糊控制相结合的高低温双循环冷却系统冷却液温度控制策略;在Matlab/Simulink中建立了冷却系统与其控制系统的耦合模型,仿真验证了控制策略的有效性;在冷却系统试验台架上验证了控制策略的可行性;研究表明采用预置MAP与模糊控制相结合的控制策略能够保证高温循环柴油机冷却液出口处温度波动不超过±1 ℃,低温循环冷散热器冷却液出口处温度低于设定值。

Abstract:

A cooling system with high and low temperature double circulations was built. On the basis of analysis of cooling demand of the various components of armored vehicles,the control strategy of the cooling system was designed ,which were based on preset MAP and fuzzy control. The Coupling Model of the cooling system and the control system was built in Matlab/Simulink software. The simulation results showed the control strategy was effective. Experiments on cooling system test bench validated the control strategy was workable. The research indicate that the control strategy based on presetting MAP and fuzzy control could satisfy the control demand of high and low temperature double circulations cooling system,which at the same time ensure that the temperature of coolant at the outlet of engine block fluctuate no more than 1 ℃,the temperature of low temperature circulation below the set value.