摘要
针对装甲车辆柴油机在高原地区冷却系统散热能力下降、冷却液温度偏高、缸内热量堆积易发热疲劳故障的问题,首先建立柴油机传散热耦合模型对不同海拔条件下的传散热能力进行计算,分析海拔高度对冷却参数的影响,研究高原环境下柴油机冷却系统控制方案优化方法,然后提出了基于柴油机工况开环控制和基于出水口温度PID闭环反馈相结合的控制方法,最后以海拔5000 m时的计算结果为例编制了开环控制MAP图并对控制方案进行了仿真,结果表明:优化后的控制系统能够有效提高冷却系统散热能力。
In view of the problems that the cooling system cooling capacity of armored vehicle diesel engine declines in plateau area,the coolant temperature is high,and the heat accumulation in the cylinder is prone to heating and fatigue failure,a coupling model of diesel engine heat transfer and heat dissipation is established to calculate the heat transfer and heat dissipation capacity under different altitude conditions,analyze the influence of altitude on cooling parameters,and study the optimization method of diesel engine cooling system control scheme under plateau environment.A control method combining open-loop control based on diesel engine working condition and PID closed-loop feedback based on water outlet temperature is proposed.Taking the calculation results at an altitude of 5000 m as an example,the open-loop control map is compiled and the control scheme is simulated.The results show that the optimized control system can effectively improve the heat dissipation capacity of the cooling system.
作者
乔新勇
靳莹
刘艳斌
康琦
QIAO Xinyong;JIN Ying;LIU Yanbin;KANG Qi(Army Academy of Armored Forces,Beijing 100072,China;China Satellite Maritime Tracking and Control Department,Wuxi 214431,China)
出处
《装甲兵学报》
2022年第4期81-85,共5页
Journal of Armored Forces
关键词
装甲车辆
柴油机
冷却系统
高原环境
armored vehicle
diesel engine
cooling system
plateau environment
