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汽车安全与节能学报

汽车安全与节能学报 ›› 2015, Vol. 6 ›› Issue (01): 90-96.DOI: 10.3969/j.issn.1674-8484.2015.01.012

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基于能量流分析的汽车发动机与传动系匹配

杨翔宇1，王 刚1，韩宗奇2,3，周荣宽1   

  1. 1. 重庆理工大学 车辆工程学院，重庆 400050，中国；
    2. 清华大学 汽车安全与节能国家重点实验室，北京 10084，中国；
    3. 燕山大学 车辆与能源学院，秦皇岛 066004，中国
  • 收稿日期:2014-08-28 出版日期:2015-03-25 发布日期:2015-04-02
  • 作者简介:第一作者 / First author ： 杨翔宇（1953 －），男（汉），重庆，教授。E-mail: yangxiangyu@cqut.edu.cn 第二作者 / Second author ： 王刚（1985 －），男（汉），湖北，硕士研究生。E-mail: 764961562@qq.com

Matching between the automotive engine and transmission#br# system based on energy flow analysis

YANG Xiangyu1, WANG Gang1, HAN Zongqi2,3, ZHOU Rongkuan1   

  1. 1. Chongqing automobile institute, Chongqing University of Technology, Chongqing 400050, China;
    2. State Key Laboratory of Automotive Safety and Energy, Tsinghua University, Beijing 10084, China;
    3. College of Vehicles and Energy, Yanshan University, Qinhuangdao 066004, China
  • Received:2014-08-28 Online:2015-03-25 Published:2015-04-02

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摘要：

以整车设计的动力性和经济性为目标，提出了一种新的汽车发动机与传动系的匹配方法。根
据发动机性能与汽车动力性的要求，选择发动机额定功率及其相关参数。从能量流角度，分析了汽车
行驶时发动机总能量和汽车各系统的能量需求。在美国环境保护署(EPA) 测试程序工况下进行动力学
分析，采用经验公式计算循环耗油量，并以此作为经济性的设计要求，仿真描绘了发动机的性能曲线。
结果表明：最高车速为198.5 km/h，直接档的最大动力因数为0.463，一档的最大爬坡度0.46，0 到
100 km 的加速时间为9.8 s，循环油耗量为9.74 L/（100 km）。因此，本匹配方法是合理的。

关键词:  汽车发动机, 汽车传动系, 匹配\能量流\动力性\经济性

Abstract:

A new scheme was proposed for matching between engine and transmission system with the power
performance and fuel economy of an automobile being as matching objective, and with the engine rated power
and other relevant parameters being as given parameters, according to the demand of the automobile power
performance and engine performance. Total engine energy requirements and various system energy requirements
were analyzed by using energy flow. Automobile dynamics analysis was done under working conditions based
on the U.S. Environmental Protection Agency (EPA) Test Procedure to calculate circle fuel consumption using
empirical formulas with the fuel consumption being as design economy requirements, and with the performance
curves describing engine performances. The results show that the maximum speed is 198.5 km/h, the maximum
power factor is 0.463, the maximum gradient is 0.46, the acceleration time is 9.8 s when accelerating from 0 to 60
km, and the fuel consumption is 9.74 L/(100 km). Therefore, the matching method is reasonable.

Key words: automotive engine, transmission system, matching, energy flow, power Performances, economy efficiency