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Telematics can be defined as utilizing wireless technology together with the Internet to deliver to vehicle occupants a variety of safety, security, productivity, information and entertainment services. To realize these Telematics services, we propose Mobile Gateway Technology that combine cell-phone or communication modules and a hands-free unit. This Mobile Gateway can gather information from the vehicle and connect to the M2M center and other voice portal centers, thus enabling multiple services such as an anti-theft system, vehicle status monitoring, driving behavior monitoring and service contents down-loading through internet.

Organic composite coated steel sheets retain their excellent corrosion resistance during cyclic corrosion tests (CCT). To clarify the corrosion behavior of these sheets during CCT, variations in corrosion products and coating components were examined. Moreover, the contribution of the corrosion products, organic composite coating, and chromate film to corrosion resistance was examined by AC impedance measurements. Formation of crystalline ZnCl2·4Zn(OH)2 and amorphous zinc carbonate were detected by X-ray diffraction (XRD) and Fourier transformation infrared spectroscopy (FT-IR). Crystalline ZnCl2·4Zn(OH)2 is formed during CCT on and under the organic composite coating. The corrosion products formed on the coating contain silicates from the silica in the organic composite coating. Consequently, the contents of zinc and silica in the coating decrease, while nickel and chromium in the chromate film and carbon in the coating remain constant during CCT.