增程式电动汽车振动噪声匹配策略研究  

Research on Vibration and Noise Matching Strategy of Extended Range Electric Vehicles

作　　者：张红军 石向南 陈景昌 ZHANG Hongjun;SHI Xiangnan;CHEN Jingchang(Yibin Cowin Automobile Company Limited,Yibin 644000,China;China Automotive Engineering Research Institute Company Limited,Chongqing 401122,China;State Key Laboratory of Vehicle NVH and Safety Technology,Chongqing 401122,China)

机构地区：[1]宜宾凯翼汽车有限公司,四川宜宾644000 [2]中国汽车工程研究院股份有限公司,重庆401122 [3]汽车噪声振动和安全技术国家重点实验室,重庆401122

出　　处：《汽车实用技术》2024年第14期13-18,共6页Automobile Applied Technology

基　　金：国家重点研发计划-中国和韩国政府间产业应用技术联合研究项目-高效增程器总成及电动车集成关键技术研发(2021YFE0193800)。

摘　　要：相对传统燃油车和纯电动车型,受增程器控制策略的影响,增程式电动汽车噪声、振动及声振粗糙度(NVH)问题更为复杂。不合理的匹配控制逻辑,极易造成加速噪声大、轰鸣等问题,且后期更改成本大、周期长。文章对增程器系统理论模型进行简化,将增程器系统视为一个整体激励源。通过监测整车状态,增程器系统对外输出不同有效转矩和曲轴转速下车内关键点振动噪声的表现,规避NVH表现较差策略点,进而在项目前期实现整车状态下车内关键点振动噪声的匹配优化,大量减少后期悬置、传动、进排气等系统的变更匹配,节约成本、缩短项目开发周期。Compared with traditional fuel vehicle and pure electric vehicle,the noise,vibration,harshness(NVH)problem of range extender electric vehicle is more complicated because of the influence of range extender control strategy.The unreasonable matching control logic is easy to cause problems such as high acceleration noise,roar,etc.,and the later change cost is large and the cycle is long.In this paper,the theoretical model of the range extender system is simplified and the range extender system is regarded as an integral excitation source.By monitoring the state of the whole vehicle,the performance of the vibration and noise of the key points in the vehicle under different effective torque and crankshaft speed output by the range extender system,and avoiding the poor performance of the NVH strategy points,in the early stage of the project,the matching optimization of the vibration and noise of the key points in the vehicle can be realized,save cost and shorten project development cycle.

关 键 词：增程式电动汽车 燃油经济性 振动噪声 匹配策略 

分 类 号：U467.12[机械工程—车辆工程]