特种履带车辆机电复合传动装置低温启动过程建模与优化控制  

Modeling and Optimal Control of Low-Temperature Starting Process of Electro-Mechanical Transmission for Special Tracked Vehicles

作　　者：帅志斌[1] 贺帅 李国辉 李耀恒 李勇 张颖 简洪超 SHUAI Zhibin;HE Shuai;LI Guohui;LI Yaoheng;LI Yong;ZHANG Ying;JIAN Hongchao(Science and Technology on Vehicle Transmission Laboratory,China North Vehicle Research Institute,Beijing 100072,China)

机构地区：[1]中国北方车辆研究所车辆传动重点实验室,北京100072

出　　处：《兵工学报》2023年第1期117-128,共12页Acta Armamentarii

基　　金：国家自然科学基金项目(51975543);北京市科技新星计划项目(Z201100006820075)。

摘　　要：针对极低温环境下,特种履带车辆机电复合传动装置冷启动时间长的问题,提出一种新型的机电复合传动装置低温快速启动方案,通过对主要加热部件能量转换过程的分析,构建低温启动过程中液压油温升的数学模型。通过控制不同加热部件的功率和加热时机,建立多约束条件下的两种低温启动控制策略:基于规则的策略和基于动态规划的策略,设计多目标优化的指标函数,实现在动力电池能量、加热部件功率等多约束下的最优启动控制。仿真结果表明:多部件加热的低温快速启动方案具备可行性,所提出的启动策略能够实现预期的控制目标;基于动态规划的策略可缩短12.6%的启动时间,同时启动过程耗能降低11.9%,有助于提升机电复合传动装置低温启动的综合效能。To solve the problem of long starting time of electro-mechanical transmission(EMT) for special tracked vehicles when running at extremely low temperature, a new scheme of quick cold starting for the EMT device is proposed. And a mathematical model of the cold-starting scheme, which describes the hydraulic oil temperature rising process, is constructed by analyzing the energy conversion process of the main heating components. Then two cold-starting control strategies with multiple constraints, namely, the rule-based strategy and the dynamic programming strategy, are established to determine the heating power distribution. A performance measure is designed to optimize the cold-starting control under multiple constraints including the battery power and heating capacity. The simulation results verify the feasibility of the quick cold-starting scheme which employs multi-component heating, and the proposed starting strategies can achieve the expected control goals. The strategy based on dynamic programming uses 11.9% less battery energy than the rule-based one, and 12.6% shorter starting time, which is essential to improve the cold-starting process of the EMT device.

关 键 词：履带车辆 机电复合传动 低温启动 动态系统建模 最优控制 

分 类 号：U463.23[机械工程—车辆工程]