基于中国典型城市交通流特征与多参量解耦观测的客车混合动力系统运行优化方法

项目名称： 基于中国典型城市交通流特征与多参量解耦观测的客车混合动力系统运行优化方法

项目编号： No.51505448

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 机械、仪表工业

项目作者： 孙勇

作者单位： 中国海洋大学

项目金额： 20万元

中文摘要： 应对日益严峻的城市交通能耗与排放的插电式混合动力客车（PHEB）是当前新能源汽车产业的前沿核心技术之一，但当前PHEB机电耦合系统节能减排性能远未达到其理论最优水平。原因有：城市交通随时间、区段具有强随机性，常规驾驶难以满足经济性最优的外部条件； PHEB普遍采用的同轴并联构型机制与运行工况深度耦合，解耦困难；混合动力系统瞬态模式切换带来的状态不确定性极度影响了系统控制平顺性；驾驶工况的自适应与多能源优化目标之间极难平衡。故项目将开展以下研究：1）建立针对PHEB交通流分时分区统计特征提取与量化方法；2）研究复杂混合动力机电系统多参量（质量、坡度、加速意图、SOC等）动态解耦机理与在线观测方法；3）探索同轴并联构型的PHEB运行模式与不确定工况间的优化匹配机制与判据；4）探索发掘PHEB构型节能潜能的可实现性控制方法。研究工作将为PHEB高效平顺运行优化控制提供理论支撑和分析方法。

中文关键词： 插电式混合动力客车；交通流特征分析；多参量观测；机电耦合驱动系统；能量优化

英文摘要： As the serious urban transport energy consumption and pollutant emissions are increasingly developed nowadays, plug-in hybrid electric bus (PHEB) has become one of the key technologies of new energy automotive industry. Recently, the energy saving performance of new energy bus running in many cities in China is far from the theoretical optimal level that is up to 50%. The reasons caused by the situation mentioned above could be summarized as follows. Firstly, a huge randomness characteristics which is generated by the varying rate of urban traffic information with the different time and zones, makes that conventional economic optimum external conditions might not achieve via the conventional driving mode. Secondly, it is hard to decouple the observed parameters which might extremely influent the energy efficiency as the single-shaft parallel configuration which is widely applied in the PHEB has a strong connection with the vehicle during the process of running. Thirdly, an uncertainty of dynamic state has arisen because of the repeated switches between the process and mode of the running system. Finally, it is extremely difficult to achieve the energy balance and optimization between the multi-adaptive vehicle operating conditions. To solve the problems mentioned above, several research interests are proposed as follows: 1)To build the method which is used to extract and quantify the statistical feature according to the urban traffic information with different time and zones; 2)To study dynamic decoupling mechanism and establish online observing methods of complex hybrid vehicle multi-parameter electromechanical system which are included of vehicle mass, equivalent slope, driving intent, SOC and so on; 3) To explore the operating mode of PHEB using the single-shaft parallel configuration, meanwhile explicit the optimizing mechanism and matching criterion; 4) To develop the realizing control method which could be utilized to excite the energy-saving potential of PHEB configuration. In summary, this research work will provide the theoretical basis and analyzing methods in the smooth and efficient running of PHEB.

英文关键词： PHEB;Traffic Flow Characteristics;Multi-parameter observation;Electromechanical Coupling Drive System;Energy Optimization