重型商用车机械式自动变速器道路试验方法研究
发布时间：2018-08-06 11:24
【摘要】：我国商用车主要分为微型商用车、轻型商用车、中型商用车和重型商用车四大类，其中重型商用车产量增长最快，年均增幅最大。变速器是重型商用车的一个重要总成，与发动机一起合称为动力总成，其性能的好坏极大地影响到汽车的质量。机械式自动变速器(AMT)以其传动效率高、成本低和易于制造等优点，非常适合我国汽车工业的发展现实，具有很好的产业化前景和广阔的应用范围。因此，开展重型商用车机械式自动变速器的关键技术研究，开发具有自主知识产权的机械式自动变速器，对打破国外的技术垄断，掌握核心技术，促进我国汽车工业的发展与技术进步具有十分重要的现实意义。 在机械式自动变速器开发过程中，道路试验作为产品开发的最后一个环节，，有着极其重要的作用。只有通过道路试验，才能对产品的整车匹配及可靠性进行全面充分的验证。本文以某重型商用车机械式自动变速器开发过程中的道路试验为基础，进行了道路试验方法的研究。 本文的主要内容如下： 1.分析了国内外机械式自动变速器的发展，简要介绍了国内外试验标准。 2.对通用公司和路虎公司的自动变速器试验标准进行了比较分析。 3.结合整车要求及机械式自动变速器的设计目标，DFMEA分析及变速器的有限元分析，得出变速器可能出现的故障点，针对潜在的故障制定出一套全面的道路试验方法。 4.结合某重型商用车变速器开发过程中的道路试验，将此方法进行运用，并对试验过程中的故障及试验结果进行分析，验证本试验方法的有效性。
[Abstract]:Commercial vehicles in China are mainly divided into four categories: micro commercial vehicles, light commercial vehicles, medium commercial vehicles and heavy commercial vehicles, in which the output of heavy commercial vehicles increases fastest and the annual increase is the largest. Transmission is an important assembly of heavy-duty commercial vehicles, together with the engine is called powertrain, its performance greatly affects the quality of the vehicle. With the advantages of high transmission efficiency, low cost and easy manufacture, the mechanical automatic transmission (AMT) is very suitable for the development of automobile industry in our country, and has a good prospect of industrialization and a wide range of application. Therefore, the research on the key technology of the mechanical automatic transmission of heavy commercial vehicles and the development of the mechanical automatic transmission with independent intellectual property rights will break the technology monopoly of foreign countries and master the core technology. It is of great practical significance to promote the development and technical progress of China's automobile industry. As the last link of product development, road test plays an extremely important role in the development of mechanical automatic transmission. Only through road test, can the vehicle matching and reliability of the product be fully and fully verified. Based on the road test in the course of the development of the mechanical automatic transmission of a heavy commercial vehicle, the road test method is studied in this paper. The main contents of this paper are as follows: 1. The development of mechanical automatic transmission at home and abroad is analyzed, and the test standards at home and abroad are briefly introduced. The test standards of automatic transmission for General purpose Company and Land Rover Company are compared and analyzed. Combined with the requirements of the whole vehicle and the design objective of the mechanical automatic transmission, DFMEA analysis and finite element analysis of the transmission, the possible fault points of the transmission are obtained, and a set of comprehensive road test method is developed for the potential faults. 4. Combined with the road test during the development of a heavy duty commercial vehicle transmission, this method is applied, and the fault during the test and the test results are analyzed to verify the validity of the test method.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U463.2;U467.11
本文编号：2167585
[Abstract]:Commercial vehicles in China are mainly divided into four categories: micro commercial vehicles, light commercial vehicles, medium commercial vehicles and heavy commercial vehicles, in which the output of heavy commercial vehicles increases fastest and the annual increase is the largest. Transmission is an important assembly of heavy-duty commercial vehicles, together with the engine is called powertrain, its performance greatly affects the quality of the vehicle. With the advantages of high transmission efficiency, low cost and easy manufacture, the mechanical automatic transmission (AMT) is very suitable for the development of automobile industry in our country, and has a good prospect of industrialization and a wide range of application. Therefore, the research on the key technology of the mechanical automatic transmission of heavy commercial vehicles and the development of the mechanical automatic transmission with independent intellectual property rights will break the technology monopoly of foreign countries and master the core technology. It is of great practical significance to promote the development and technical progress of China's automobile industry. As the last link of product development, road test plays an extremely important role in the development of mechanical automatic transmission. Only through road test, can the vehicle matching and reliability of the product be fully and fully verified. Based on the road test in the course of the development of the mechanical automatic transmission of a heavy commercial vehicle, the road test method is studied in this paper. The main contents of this paper are as follows: 1. The development of mechanical automatic transmission at home and abroad is analyzed, and the test standards at home and abroad are briefly introduced. The test standards of automatic transmission for General purpose Company and Land Rover Company are compared and analyzed. Combined with the requirements of the whole vehicle and the design objective of the mechanical automatic transmission, DFMEA analysis and finite element analysis of the transmission, the possible fault points of the transmission are obtained, and a set of comprehensive road test method is developed for the potential faults. 4. Combined with the road test during the development of a heavy duty commercial vehicle transmission, this method is applied, and the fault during the test and the test results are analyzed to verify the validity of the test method.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U463.2;U467.11
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本文编号：2167585
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