At the conference of the Society of Automotive Engineers (SAE) in Detroit 1986, staff from Robert Bosch GmbH presented the so-called Automotive Serial Controller Area Network (CAN). In the 1990s, CAN was very quick to gain significance, and is today the standard protocol in the automotive area. As CAN only provides a simple exchange of data, various application protocols based on CAN were developed. One of those is SAE J1939, which was specially developed for applications in heavy goods vehicles, buses and mobile machinery like Hydraulic Excavators. Today, SAE J1939 is used in many different types of vehicles for communication between various control devices, which are generally termed as Electronic Control Units (ECU).
It is also used in myriad other applications including factory automation, building automation, aircraft and aerospace.
The CAN bus replaced bulky wiring harnesses with a two-wire differential cable. With the increasing trend of integrating IT Solutions on Hydraulic Excavators for superior productivity and fuel efficiency, the need for CAN bus feature has become a bare necessity, As it contributes to superior reliability & diagnostic ease as compared to bulky wiring harnesses.
Some leading manufacturers like JCB have already adopted this feature on their JS200 Hydraulic Excavator.
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