SAE J1939 networks are widely used in heavy-duty vehicles, agricultural machinery, construction equipment, and stationary engines. Although J1939 is often described as a standardized protocol, real-world implementations are tightly controlled, highly validated, and frequently intolerant of unexpected devices. Engineers connecting third-party hardware to these networks often assume Ethernet-like openness or…
Posts tagged as “J1939 data logging”
When it comes to vehicle diagnostics and data communication, two protocols dominate the field: SAE J1939 and OBD-II (On-Board Diagnostics, version II). At first glance, they may seem similar, since both deal with electronic communication between a vehicle’s components and diagnostic tools. However, their purpose, scope, and applications are quite…
Preventive vs. Reactive Maintenance in Diesel Fleets Preventive maintenance is a proactive strategy where vehicles undergo regular inspections and service to address wear-and-tear before major failures occur. In fleets of diesel-engine trucks, buses, and military vehicles, this approach contrasts with reactive (breakdown) maintenance, where repairs are only made after a…
