The automobile network based on CAN bus, a system that is able to reduce the number of wiring harnesses and realize the sharing of data, is more and more widely adopted in modern automobiles nowadays. Meanwhile, in developing of the such automobile network, to reduce the cost and save resources, the CAN Analyzer software is utilized when performing simulated analysis on the electrical control system of the automobile body. The impact on the network load from the average delay time and the data transmission speed is determined by the data analysis, while the network load and the delay time are also monitored.

The main purpose of this effort is to design an autonomous all terrain vehicle which uses a CAN bus. The paper describes the operation and advantages of the CAN protocol in automobiles. The ATV used for this design is a Honda Four Trax Rancher AT and a brief explanation of the parts in the ATV is provided. The Renesas RX62N microcontroller is used as a CAN controller which creates a single two wire bus through which electronic control units (ECU) in the automobiles communicate. The working of the CAN protocol on the RX62N has been explained with the help of pseudo code.

Based on requirements of modern vehicle, in- vehicle Controller Area Network (CAN) architecture has been implemented. In order to reduce point to point wiring harness in vehicle automation, CAN is suggested as a means for data communication within the vehicle environment. The benefits of CAN bus based network over traditional point to point schemes will offer increased flexibility and expandability for future technology insertions. This paper describes system which uses sensors to measure various parameters of the car like speed, distance from the other car, presence of alcohol in car and accidental change of lane and sends a warning signal to the driver if any of the parameter goes out of range to avoid accidents . In addition to this if accident occurs in any remote area then using bump sensor accident is detected and SMS is send immediately using GSM. A situation that provides a good example of how the system works is when a driver is about to change lanes, and there is a car in his blind spot. The sensors will detect that car and inform the driver before he starts turning, preventing him from potentially getting into a serious accident.

The I2C protocol was given by Philips Semiconductors in order to allow faster devices to communicate with slower devices and also allow devices to communicate with each other over a serial data bus without data loss.I2C enabled microcontrollers like ARM7 from Atmel and TMS470 from Texas Instruments requires a lot of programming and knowledge of the register structures for configuring it. Hence they are not portable. We here present a model of I2C bus controller.