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Vehicle Computer Architectures Help Improving Diesel Engine Performance And Lifetime Costs
Engineers are leaving no stone unturned in their unceasing drive to improve fuel economy, leveraging electronics, monitoring airflow, and using data from outside the vehicle. Computer architectures are being revised to simplify controls and decrease sensor counts, helping keep costs in line. Computers continuously monitor and control the engine, transmission, after-treatment systems, and more. Powerful devices [...]
The Difference Between SAE J1939 And CAN Bus - The Extended CAN Bus Protocol
The following is an excerpt from A Comprehensible Controller Area Network by Wilfried Voss. The standard CAN message frame uses an 11-bit message identifier (CAN 2.0A), which is sufficient for the use in regular automobiles and any industrial application, however, not necessarily for off-road vehicles.The Society of Automotive Engineers (SAE) Truck and Bus Control and Communications Subcommittee [...]
Practical Experiences Of Creating Autonomous Vehicle Systems Written For A General Computing And Engineering Audience
This book is the first technical summary of autonomous vehicles written for a global computing and engineering audience. The authors share their working experiences of creating autonomous vehicle (AV) systems. AV systems are complex, and they consist of three principal subsystems:Algorithms for localization, perception, and planning and control; Client systems, such as the robotics operating system [...]
JCOM1939 Monitor Software - New Version 3.31.00
Our SAE J1939 ECU Simulator Board With USB Port allows any host device (e.g., PC) with a USB COM port to monitor SAE J1939 data traffic and communicate with the SAE J1939 vehicle network, which makes it also suitable to simulate SAE J1939 data traffic. The simulation of SAE J1939 signals (i.e., PGNs) is a [...]
COM Express Type 6 Basic Module For Industrial IoT Applications
Axiomtek announced the release of its CEM520, a COM Express Type 6 basic module featuring triple independent displays, industrial operating temperature range, and plenty of possibilities for expansions. The CEM520 utilizes the Intel Xeon E-2176M and 8th generation Intel Core i7/i5/i3 processors (codename: Coffee Lake) with the Intel CM246/QM370/HM370 chipset. The 125 x 95 mm system-on-module [...]
SAE J1939 Data Monitoring And Simulation With The Arduino
The following is an excerpt from SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino by Wilfried Voss In general, there are three different intentions for connecting to a J1939 vehicle network: Mere monitoring, processing, and display of network data traffic. All functions as described under 1. but extended by the ability of sending data into the J1939 [...]
Open Source Development Board For Motion Based IoT Applications
Bluetera II is an open hardware IoT solution equipped with 9-axis motion sensors, an MCU with BLE 5.0 (Bluetooth Low Energy) support, and an SDK based on Google’s Protocol Buffer technology. The tiny development board will be available for purchase through the Crowd Supply website. The offer includes a complete development board using protocol buffers for [...]
Controller Area Network (CAN Bus) - Error Detection And Fault Confinement
The following is an excerpt from A Comprehensible Controller Area Network by Wilfried Voss. The CAN standard utilizes a series of error detection mechanisms, which contribute to its high level of reliability and error resistance (see following Chapter - Error Detection). The reliability of CAN has been calculated in a mathematical model. Here is an example using the following [...]
SAE J1939 Transport Protocol (TP) Functions
The following is an excerpt from A Comprehensible Guide To J1939 by Wilfried Voss. Even though extremely useful in passenger cars and small industrial applications, CAN alone was not suitable to meet the requirements of truck and bus communications, mainly since its communication between devices is limited to only 8 bytes per message. However, it is possible [...]
Positioning Controller With CANopen - CiA-402 Capabilities
maxon has launched a miniaturized controller that comes in a size of 32 mm x 22 mm as part of its product line of positioning controllers.The controller's functionality, operation, software, and accessories are derived primarily from existing products in the EPOS4 range. The device is fitting for applications utilizing both brushed DC and brushless EC motors [...]