| Summary: | 碩士 === 崑山科技大學 === 電子工程研究所 === 96 === CAN bus interface device in cars have gradually become the mainstream nowadays, and the application is the most used internationally. The main function of the CAN bus in vehicles is the communication among different ECU and the exchange of messages on the electronic network in the car, forming the automotive electronic network. CAN bus can eliminate strong noise, transfer data with high speed, and detect any types of error.
The on board diagnostics (OBD) has the built-in with all types of information on vehicle systems. In January 1st, 2008, Taiwan implemented the "Phase IV emission standards for petrol vehicle"; it required that the new vehicles entering the market to install OBD systems. In addition, all vehicle factories expect to use the CAN bus system as the replacement starting from the beginning of 2008.
In this thesis, we design and implement an interface to communicate with the CAN bus OBD system to fulfill the vehicle dashboard system. This proposed system can reduce the cost of sensor installation and issue on the wiring. Along with that, it also can provide more display function that can provide more information when driving vehicle, so the driver will be able to receive active information that is reflected when the vehicle has any kind of problem.
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