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Telematics is being actively promoted a new technology based on Global Position System GPS and wireless voice and data communication, which is used in information communication between Service Suppliers and mobile objects (human, vehicles, etc). Telematics system supplies drivers and passengers with various information and services, such as real - time transportation information, vehicle navigation, living information, vehicle remote control, burglar alarm, emergency help, vehicle remote diagnosis and tracking, multimedia and Internet finance business, news and Email etc. The Terminal Control Unit TCU is the platform to implement Telematics service. Telematics system's most notable feature is that it is not just a single vehicle radio system, more importantly, it has a management service center, which is closely related with the service and is service-oriented.

Numerical simulation has been widely used in the engine development process to improve the development quality, especially in the area of in-cylinder flow and fuel evaporation. In this paper, a fuel spray model for a gasoline direct injection (GDI) engine, calibrated against spray visualization in a spray bomb, is developed to characterize the fuel spray atomization, vaporization, and interaction with in-cylinder air flow. With this model, fuel atomization and fuel-air mixing process are thoroughly analyzed at full load operating conditions at both low and high speeds. It is shown that fuel spray at high speed is deflected towards intake side, leading to limited wall wetting, piston wetting, and good vaporization, due to intensive tumble flow and high temperature. The results from the numerical simulation provide important guideline for the development of a GDI engine.

From the perspective of simultaneous engineering, taking car body side doorsill reinforcing supporting plates and side impact beam as examples, this paper analyzes the impact of body structure on the electro-coating quality of vehicle based on characteristics of electric field lines and heat absorption in the heat conduction process of metal. In addition, the paper also covers the importance of electro-coating equipment to electro-deposition quality.