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…
Posts published in “Reports”
Comprehensive insights, analysis, and technical reports on SAE J1939 data communication, monitoring tools, industry trends, and vehicle network technologies.
Introduction SAE J1939 is the dominant in-vehicle network protocol for medium and heavy-duty vehicles, traditionally running on Classical CAN at 250 kbps (or 500 kbps) with 8-byte frames. As modern trucks and buses integrate more electronics – from advanced engine controls to ADAS sensors – the bandwidth limitations of classical…
We are currently developing a comprehensive ESP32 application note that details the design and implementation of CAN Bus data logging devices. This document will serve as a practical guide for building robust and cost-effective logging solutions using the ESP32 microcontroller. In addition to covering the technical aspects of interfacing with…
Overview of SAE J1939 and Recent CAN FD/XL Enhancements SAE J1939 Basics: SAE J1939 is a high-level communications protocol that has long used the CAN (Controller Area Network) bus for in-vehicle networking on heavy-duty and off-road vehicles (e.g. trucks, agricultural and construction machinery). It operates on a 29-bit CAN identifier…
Executive Summary Controller Area Network (CAN) and Automotive Ethernet are two pivotal in-vehicle networking technologies with distinct strengths. CAN, standardized as ISO 11898, has served as the backbone of automotive electronics for decades, enabling reliable, real-time communication between Electronic Control Units (ECUs) at low cost. However, its maximum bandwidth (1 Mbps…
Introduction The Controller Area Network (CAN bus) is a robust serial communication bus originally developed for automotive applications in the 1980s. It allows microcontrollers and electronic control units (ECUs) in a vehicle or machine to communicate with each other without a central host computer. Since its inception, CAN bus has…
The Controller Area Network (CAN) is a vehicle/industrial network bus standard developed in the 1980s for efficient, real-time communication between microcontrollers. It has since become ubiquitous in automobiles, trucks, heavy machinery, medical devices, and industrial equipment. Higher-layer protocols built on CAN include CANopen (used in industrial automation, robotics, and medical…
