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The electronic control unit and other electronic controls are connected to every major system of a car built within the past 15 years, yet when there is a problem or an error code, many enthusiasts do not know how to go about fixing the problem. With this book, an affordable hand held scanner, and other common tools, the average enthusiast can diagnose and fix most common problems, rather than bringing the vehicle to a dealership for repair at shop rates of $100 per hour or more. 
Keith McCord recounts the history of automotive onboard diagnostic systems and creation of the rudimentary OBD I systems and the development as well as the evolution of OBD II. Currently, OBD-II (OnBoard Diagnostic II) is the standard of the industry, and this book provides a thorough explanation of this system. It details its main features, capabilities, and characteristics. It shows how to access the port connector on the car, the serial data protocols, and what the serial data means. To understand the diagnostic codes, the numbering system is defined and the table of common DTCs is shown. But most importantly, McCord provides a thorough process for trouble shooting problems, tracing a problem to its root, explaining why DTCs may not lead to the source of the underlying problem, and ultimately resolving the problem. 

Almost anyone can hook a scanning tool up to the serial port and read the error, but the key to fixing the problems is using an effective trouble shooting process that resolves all the issues that may be contributing or creating the problem. McCord provides sound procedures, insight, and information for resolving most ECU and computer control problems at home with affordable consumer-grade scanners.


Motorcars engineering --- OBD (on-board diagnostics) --- diagnose (autotechnologie) --- auto's

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**Diagnostic Communication with Road-Vehicles and Non-Road Mobile Machinery** examines the communication between a diagnostic tester and E/E systems of road-vehicles and non-road mobile machinery such as agricultural machines and construction equipment. The title also contains the description of E/E systems (control units and in-vehicle networks), the communication protocols (e.g. OBD, J1939 and UDS on CAN / IP), and a glimpse into the near future covering remote, cloud-based diagnostics and cybersecurity threats.

Motorcars engineering --- OBD (on-board diagnostics) --- mobiele netwerken --- auto's

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In dieser Arbeit werden zur Überwachung von Drei-Wege-Katalysatoren zwei neue modellbasierte On-Board-Diagnoseverfahren vorgestellt. Zunächst wurde ein die Alterung mit berücksichtigendes physikalisches Katalysatormodell entwickelt. Dieses bildet die Grundlage der neuen Diagnoseverfahren, bei denen ein den aktuellen Zustand des Katalysators schätzender Sigma-Punkt-Kalman-Filter zum Einsatz kommt. Das große Potential dieser neuen Diagnoseverfahren zeigen die abschließend präsentierten Ergebnisse.

Abgastemperatur --- Spektrale Verfahren --- Constrained Sigma-Punkt-Kalman-Filter --- Drei-Wege-Katalysator-Modell --- On-Board-Diagnose

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Due to tougher legislation on exhaust emissions
reduction and the consumer demand for more power and
mobility and less fuel consumption, the functionality in
today's engine management systems continues to grow.
The electronic engine control units (ECUs) have to
perform more control tasks using new sensors and
actuators, along with the corresponding self-diagnostics
(OBD, on-board diagnosis). 

All this leads to continuously increasing demands on
automated hardware-in-the-loop (HIL) test systems. HIL
technology has advanced in parallel to the ECUs, and is
today an indispensable tool for developing automotive
electronics. This paper therefore aims to provide a comprehensive
and state-of-the-art survey of HIL test
systems for engine controllers. 

First of all, a brief introduction to the ECU's functionality
is given. Then the sensor and actuator interfaces are
described in detail together with the corresponding
interfaces of the HIL simulator, and both hardware and
software aspects are discussed. There follows a
description of the real-time engine simulation models
which are needed to close the control loop between the
ECU and the HIL simulator. Finally, some typical HIL
system configurations are shown to demonstrate today's
breadth of applications. The last section looks at future
development steps in HIL technology, necessitated by
the current enhancements to ECUs.

Motorcars engineering --- CAN (controller area network) --- OBD (on-board diagnostics) --- auto's

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Motorcars engineering --- OBD (on-board diagnostics) --- elektrische schema's --- auto's --- Ford (auto's)