eCAN_White_Paper_Eng_DM v1.0.1

eCAN White Paper
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Overview
<CAN applied vehicle>
CAN(Controller Area Network) communication is a specification designed for in-vehicle modules to communicate
with each other. Conventional methods within vehicles used UART based serial communication, and as initially
there were not many communication modules, there were no problems in application. However, as vehicle
technology develops and communication modules increase, vehicle load has dramatically increased due to
exponentially increased wirings. This has caused problems such as falling fuel efficiency and increasing product
costs.
CAN was developed to cause this problem by German company Bosch in 1986. It used bus communication method
rather than 1:1 communication method which UART based serial communication has, and various technologies
were incorporated to prevent communication conflicts.