3 Days
I.D.#C0707
On-board diagnosis of engine and transmission systems has been
mandated by government regulation for light and medium vehicles
since the 1996 model year. The regulations specify many of the
detailed features that on-board diagnostics must exhibit. In addition,
the penalties for not meeting the requirements or providing in-field
remedies can be very expensive. This course is designed to provide
a fundamental understanding of how and why OBD systems function
and the technical features that a diagnostic should have in order to
ensure compliant and successful implementation.
Fundamental design objectives and features needed to achieve those
objectives for generic on-board diagnostics will be covered. The
course will also include a review of the California Air Resources OBD
II regulation, providing students with a firm foundation for reading and
understanding the requirements, including the in-use rate portion of
the regulations and how to properly calculate and output the required
rate information. Relationships between the regulation and various
SAE and ISO recommended practices will be reviewed. The course
will also explore the relationship of the OBD system with the underlying
control system.
Note that because of proprietary considerations, this class does
not provide details of algorithm design, algorithm performance, or
algorithm application. The class will cover general OBD algorithm
designs and the features required to promote sound OBD system
design.
Learning Objectives
By attending this seminar, you will be able to:
Articulate the underlying design objectives of on-board diagnostic
systems
Use the latest California Air Resources Board On-Board Diagnostic
Regulation for Light and Medium Vehicles to find and apply OBD
requirements
Apply the design features that all diagnostics need for successful
implementation
Design diagnostics to comprehend variation
Successfully implement algorithms to track in-use rates in
accordance with the CARB OBD II Regulation
Use SAE J1979 to implement generic scan tool support in
diagnostic design
Implement OBD design requirements in control system design
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