基于KULI的发动机热管理瞬态模型的参数设置与仿真

以某重型柴油机为原型，利用KULI软件建立了发动机冷却系统模型，阐述了模型中发动机参数的设置原理，进行了瞬态工况下冷却液温度以及润滑油温度变化的仿真。结果说明：其仿真结果与实验数值吻合较好，模型精度可靠，模型中发动机的参数设置原理为发动机热管理瞬态模型的设置提供了一种方法，使用该方法可用来设置不同类型的发动机，为发动机热管理系统的仿真计算提供较为准确的放热边界条件，并进一步用来仿真完整的发动机热管理系统。

Parameters setting parameters and simulation of transient state model in engine thermal management based on KULI

On a basis of a heavy-duty diesel engine the cooling system model was established using KULI software, and the temperature of coolant and oil was simulated at transient state. The paper mainly described that how to set engine model parameters in a transient state model with KULI software. The results show that using the engine model, the simulated results are in good accordance with experimental data, so the model is reliable and the principle of parameters setting provides a method for setting engine thermal management transient model which can be used to other engines. The engine model supplies appropriate thermal boundary environment for Engine Thermal Management System (ETMS), and it can be used to simulate the whole ETMS.