Research & Application Of The LIN Communication Technology In The Intelligent Electronic Control System Of The Automotive

Today vehicles contain more and more electrical components. With the great increase of electrical components in the car, more and more communications are needed among them. To reduce the number and weight of connections and dedicated wiring, networking in vehicle is developed and it provides a more efficient method for today's complex communications in vehicle. LIN (Local Interconnect Network) is a new type low-cost network of these networking technologies.The dissertation introduces the background,practical significance and the development history of the modern Motor Vehicle network technology first. In the second chapter. The classification of the vehicle Network, some of the most important networking technology is emphasized, such as LIN, CAN, MOST, 1394, and the car network features, selection criteria for bus, the development of the car network are given, The LIN networking technology is introduced in details too, including the history of LIN standard, LIN concept, LIN message frame, error detection and management, sleep mode. How to design the software and hardware of LIN node and application of LIN is also discussed. In the third chapter. To the door modules and a central control unit of a body network control system as an example, considering a variety of factors, such as network costs, the information flow and network security, the feasibility of some LIN network planning of the programme is discussed. It has a very good reference value to the development of the actual system. According to the actual project, put forward a LIN bus hardware solutions based on a Steyr heavy trucks instrument system, Jinan heavy-duty truck company , and given the relevant circuit schematic. In the fourth chapter. Introduces the softeware solutions of the dashboard design based on the LIN bus and a car dashboard-based focus on the realization of LIN communication problems, given the flow chart of the process and some source code.Automobile instrument demo system based LIN bus has been developed, which under the guidance of instructors to complete the design , including hardware and software. The advantages of this demo system include simple network hierarchy, high interoperability, convenient operation and so on.