Automotive Network Based On Can Bus Vehicle Combination Instrument To Achieve

This thesis covers most of the research work that I have done during my graduate student period. An implementation solution of automotive electronic system network is brought forward at the beginning, and then the network is divided into several categories, characteristics of which have been discussed accordingly. Also, the most important standard of each category is briefly introduced and comparison with similar standards is given. Issues about network architecture, high level communication protocol are discussed too. As an implementation example of the research results, a CAN-SAE J1939 based automotive dashboard is described. The dashboard is developed on TI's TMS320LF2407 DSP controller, mix programmed by C and assembly language. It is implemented as a cooperative project between the research group and Shaoxing Betung Instrument Co., Ltd., aiming at providing a new type of automotive dashboard for China FAW Group Corporation.In the first chapter, concept of in-vehicle networking is introduced. The domestic and foreign situation of in-vehicle networking research and development is summarized. The scope, content and results of the research project are also introduced.As the theoretical part of the research, related issues about the in-vehicle network is discussed in detail in the second chapter to the fourth chapter. A complete network and its development process are described at the aspects of network architecture, standardization, and communication protocol. In the second chapter, process of in-vehicle network development is discussed, and a complete architecture of network is also given here. In the third chapter, 4 main categories of in-vehicle network are further discussed. Key characteristics and special requirements on communication of each network is analyzed, then the most important standard of that category of network is introduced to explain how they adapts the specific category of network and how they satisfy the specific communication requirements. Comparison among the standards of the same category is conducted. In the fourth chapter, important issues of high-level communication protocols are discussed in detail, taken SAE J1939 as a good example.As the practical part, the fifth chapter describes a CAN based automotive dashboard. Instead of the traditional point-to-point architecture, a new CAN communication bus based architecture is used to convey the sensor data, as well as instructions of configuration and instructions. The hardware and software architecture are depicted, and the main technical issue of the implementation is further discussed.At the end of the thesis, the conclusions of the research are drawn in chapter 6, and recommendations on further research and development are also given here.Since the thesis has involved a lot of proper terms and abbreviations, a glossary of terms and abbreviations is given in the appendix.