混合动力车用发动机快速起动性能分析及驻车优化  

Fast Starting Performance Analysis and Parking Optimization of Hybrid Electric Vehicle Engine

作　　者：陈楠 黄旭 马东元 张伟 许伟利 Chen Nan;Huang Xu;Ma Dongyuan;Zhang Wei;Xu Weili

机构地区：[1]中国北方发动机研究所,天津市300400

出　　处：《时代汽车》2022年第7期39-40,共2页Auto Time

摘　　要：良好的节油性是混合动力汽车(HEV)的优势之一。在市区行驶时,遇到拥堵路段或红灯,汽车需要频繁驻车。驻车时选择怠速还是停机/再起动策略,是影响混合动力汽车油耗的重要因素。本文首先选择电机拖转转速和燃料两项因素,分析了不同拖转转速、不同燃料对发动机快速起动性能的影响;随后通过实验,在计算电机能耗、发动机能耗的基础上,对比计算结果总结了驻车策略的优化方案,即使用醇类燃料,将快速起动转速控制在1000r/min,能够显著提高混合动力车的燃油经济性。Good fuel economy is one of the advantages of hybrid electric vehicle (HEV).When driving in urban areas,cars need to park frequently in congested sections or red lights.Idling or stop / restart strategy is an important factor affecting the fuel consumption of hybrid electric vehicles.Firstly,this paper selects two factors:motor speed and fuel,and analyzes the influence of different speed and fuel on the fast starting performance of the engine.Then,based on the calculation of motor energy consumption and engine energy consumption,the optimization scheme of parking strategy is summarized by comparing the calculation results,that is,using alcohol fuel and controlling the fast starting speed at 1000r / min,which can significantly improve the fuel economy of hybrid electric vehicle.

关 键 词：混合动力发动机 快速起动性能 醇类燃料 驻车优化 

分 类 号：U46[机械工程—车辆工程]