Design of intelligent switch system for in-vehicle control applications

We introduce an intelligent switch system design that uses the battery powerline in vehicles as a communication media. With this system, an In-vehicle network can be built easily without installing new wires for communication. The proposed system is consisting of a host controller unit, a single power/data bus for the transmission of both power and data, and intelligent switches which connect the loads to the power/data bus. Power monitoring and ON-OFF control sequences can be accomplished by sending signals to the intelligent switches between the load and the bus bar. We develop a prototype of the system and use as an example to illustrate the feasibility of simplifying the power system in modern vehicles. The research Is still in progress, more mathematical analysis and system development work will be carried out.