作者：韩震1, 彭忆强1,2,3, 武小花1,2,3, 金思含1
作者单位：1. 西华大学汽车与交通学院，四川 成都 610039;
2. 汽车测控与安全四川省重点实验室，四川 成都 610039;
3. 四川省新能源汽车智能控制与仿真测试技术工程研究中心，四川 成都 610039
关键词：汽车;行驶工况;马尔科夫链;燃料电池;公交车
摘要：
为反映成都市燃料电池示范线路道路实际工况特征以及燃料电池公交车工况独特性，基于8个月的数据采集，采用聚类分析和马尔可夫链相结合的方法构建成都示范区燃料电池公交车行驶工况。为验证所用方法的有效性，将示范线路工况与数据库总体样本特征值进行对比。结果表明：所建工况与验证数据的平均绝对值偏差为4.66%，且各参数偏差均小于7%。为体现燃料电池公交车工况独特性，将其与国内外其他代表性工况进行比较。对比结果显示：燃料电池公交车工况速度比例分布不均，其平均车速、平均运行车速和怠速比例介于国内一、二线城市之间。匀速比例高，平均加速度和加速比例低于普通燃油公交车工况。该文所建工况符合燃料电池公交车运行特征，可作为示范区代表性行驶工况。
Driving cycle construction of fuel cell bus on demonstration line based on Markov chain
HAN Zhen1, PENG Yiqiang1,2,3, WU Xiaohua1,2,3, JIN Sihan1
1. School of Automobile and Transportation, Xihua University, Chengdu 610039, China;
2. Key Laboratory of Vehicle Measurement, Control and Safety of Sichuan Province, Chengdu 610039, China;
3. Sichuan Engineering Research Center of Intelligent Control and Simulation Test Technology for New Energy Vehicles, Chengdu 610039, China
Abstract: In order to reflect the characteristics of actual driving conditions and the uniqueness of fuel cell buses in Chengdu fuel cell demonstration line, based on 8-month data collection, clustering analysis and Markov chain method were used to construct the driving conditions of fuel cell buses in Chengdu demonstration area. In order to verify the effectiveness of the proposed method, the model line working conditions were compared with the eigenvalues of the total sample in the database. The results show that the average deviation of absolute value between the built working condition and the verified data is 4.66%, and the deviation of each parameter is less than 7%. In order to reflect the uniqueness of fuel cell bus operating conditions, it is compared with other representative operating conditions at home and abroad. The comparison results show that the ratio of fuel cell bus operating speed is unevenly distributed, and its average speed, average operating speed and idle speed ratio are between the first and second tier cities in China. The average acceleration and acceleration ratio are lower than those of ordinary fuel bus. The fuel cell bus operating conditions are consistent with the characteristics of fuel cell buses and can be used as representative driving conditions in demonstration areas.
Keywords: vehicle;driving cycle;Markov chain;fuel cell;bus
2024, 50(4):74-82 收稿日期: 2022-04-11;收到修改稿日期: 2022-05-23
基金项目: 四川省科技厅重大科技项目（2019ZDZX0002）；四川省区域创新合作项目（2020YFQ0037）；四川省重点研发计划项目（2021YFG0071）；成都科技项目（2019-RK00-00025-ZF，2019-YF08-00003-GX）
作者简介: 韩震(1996-),男,山东邹平市人,硕士研究生,专业方向为车辆动力系统研究。
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