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A “network” has been defined in Webster as “an interconnected or interrelated chain, group, or system” and “a system of lines or channels resembling a network”. Similar definition will also apply to in-vehicle networks as they connect hundreds of sensors and other electronic components inside vehicles. There are many standards exists for in-vehicle networks such as CAN, SAE J1850, SAE J1939, LIN, MOST, FlexRay and others [1, 2, 3, 4, 5, 6, 7, 8 and 9]. However, these standards do not address security and reliable communication issues. With the growth in technology, there is a need for the communication between the in-vehicle network and remote services for safety, entertainment, assistance, etc. It seems that security for such systems still is an unanswered question. The questions such as “Do we trust the remote services?”, “Are they the ones who claim?” and “Will our information remain confidential from unauthorized people?” need to be addressed.

This paper describes a design of a system that controls the speed and direction of a small DC motor though a network system. This work is important as large numbers of motors are employed inside a modern vehicle. Moreover most of the electronic devices inside a vehicle are networked through a Controller Area Network (CAN). The system uses commands from a CAN node and sends this message through a CAN bus to another CAN node which is controlling the DC motor. The system uses two Phytecs boards (Infineon C505C Microcontrollers based) and communicates through a CAN bus. The system bus is monitored with a Dearborn Protocol Adapter II (DPA-II). The system is broken into four major parts: two CAN nodes, the driver circuitry, and a feedback sensor. This paper provides detailed design, flow chart of the programs and testing of the system.

The goal of this paper is to provide a design of a CAN to IEEE 802.11 wireless network interface for automotive and other applications. The design uses Infineon C167CR 16-bit microcontroller with built-in CAN, the AMD Am79C930 Medium Access Controller, and the Intersil PRISM chipset designed for IEEE 802.11 wireless LAN.

This paper presents an air-fuel ratio control of a spark ignition (SI) engine. The control strategy depends on the evaluation of the model parameters such as fuel puddle parameters, time constant and delay time values using fuzzy logic. These values in turn are used in the air-fuel ratio control that implements self-tuning regulator (STR) system. The effectiveness of the proposed design is demonstrated through simulation for various throttle transients. The results obtained show that the air-fuel ratio is maintained within 0.5% of the commanded stoichiometric value.

Today's vehicles use electronic control units to control engine/transmission, body and other amenities. These electronic control units are integrated into a computer network generally known as multiplexing system. There are a number of protocols, recommended practices available from SAE, ISO and other organizations for implementing the multiplexing system. This paper will provide an overview of various protocols, recommended practices available for in-vehicle networks. It provides a comparison of the physical layer of various protocols.