I. Introduction
Passenger car is the main traffic tool in public transportation and equipped with many ECUs (Electronic Control Units) to fulfil with the requirements of adding functions and enhancing performance. The implementation of complicated control function requires the use of real-time and reliable information exchange between different ECUs, sensors and actuators. But it is hard to realize information exchange with the traditional point-to-point links which would induce drawbacks such as the increase of weight, cost and reliability problem etc. [1]. Based on in-vehicle network technology, passenger car information integrated control system can share information and implement real-time and correlative control between ECUs [2].