基于能量计算模型的混合动力商用车节油分析

doi:10.3901/JME.2021.20.153

机械工程学报 ›› 2021, Vol. 57 ›› Issue (20): 153-160.doi: 10.3901/JME.2021.20.153

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基于能量计算模型的混合动力商用车节油分析

曾小华, 刘持林, 宋大凤, 李文远

吉林大学汽车仿真与控制国家重点实验室长春 130025

收稿日期:2020-06-07 修回日期:2021-06-29 出版日期:2021-10-20 发布日期:2021-12-15
通讯作者: 宋大凤(通信作者),女,1977年出生,博士,教授。主要研究方向为车辆底盘电控及液控技术,包括电控悬架、制动/驱动控制子系统等方面的研究工作。E-mail:songdf@126.com
作者简介:曾小华,男,1977年出生,博士,教授,博士研究生导师。主要研究方向为节能与新能源技术。E-mail:zeng.xiaohua@126.com
基金资助:
吉林省自然科学基金资助项目（YDZG202101ZYTS159）。

Fuel Saving Analysis of Hybrid Truck Based on Energy Calculation Model

ZENG Xiaohua, LIU Chilin, SONG Dafeng, LI Wenyuan

State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025

Received:2020-06-07 Revised:2021-06-29 Online:2021-10-20 Published:2021-12-15

摘要/Abstract

摘要： 针对混合动力商用车工作模式多、油耗分析耦合因素多且复杂的问题，从系统能量流角度出发，建立基于能量计算的混合动力系统理论油耗计算模型和综合理论油耗增量计算模型，并通过不同案例的仿真与理论计算结果的对比分析来验证所建立的理论计算模型的合理性，对比分析结果表明所提的理论计算模型误差在4%以内。此外，基于能量计算模型推导出混合动力商用车各油耗影响因素的理论节油量及节油率公式，分别对各油耗影响因素进行定性和定量分析，特别定量计算滚动阻力系数、电机效率、机械效率及发动机平均燃油消耗率变化后混合动力商用车节油能力的变化。所建立的理论计算模型简化了混合动力系统能量分析复杂的问题，对混合动力商用车前期匹配设计和经济性摸底具有一定的借鉴作用。

关键词: 混合动力系统, 理论油耗模型, 商用卡车, 节油分析

Abstract: Aiming at the problems of multiple working modes of hybrid truck and multiple coupling factors of fuel consumption analysis, a theoretical fuel consumption calculation model and a comprehensive theoretical fuel consumption incremental calculation model is established based on energy calculation from the perspective of system energy flow in this paper. The rationality of the theoretical calculation model established in this paper is verified through comparative analysis of simulation and theoretical calculation results of different cases. The comparative analysis results show that the error of the theoretical calculation model proposed in this article is within 4%. In addition, based on the energy calculation model, the theoretical fuel-saving amount and fuel-saving rate formulas of various fuel consumption influencing factors of hybrid truck are derived, and the various fuel consumption influencing factors are respectively analyzed qualitatively and quantitatively. In particular, the changes in the fuel-saving ability of hybrid truck after changes in rolling resistance coefficient, motor efficiency, mechanical efficiency, and engine average fuel consumption rate are specifically calculated. The theoretical calculation model established in this paper simplifies the complex problems of hybrid system energy analysis, and can be used as a reference for the preliminary matching design and economic analysis of hybrid truck.

Key words: hybrid electric system, theoretical fuel consumption model, commercial truck, fuel saving analysis

中图分类号:

U469

曾小华, 刘持林, 宋大凤, 李文远. 基于能量计算模型的混合动力商用车节油分析[J]. 机械工程学报, 2021, 57(20): 153-160.

ZENG Xiaohua, LIU Chilin, SONG Dafeng, LI Wenyuan. Fuel Saving Analysis of Hybrid Truck Based on Energy Calculation Model[J]. Journal of Mechanical Engineering, 2021, 57(20): 153-160.

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基于能量计算模型的混合动力商用车节油分析

Fuel Saving Analysis of Hybrid Truck Based on Energy Calculation Model

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