A New Object-Oriented Diagnostic System Management for Powertrain Control Units with OBD

Paper #:
  • 980512

Published:
  • 1998-02-23
Citation:
Mischker, K., Hillner, H., and Schiemann, J., "A New Object-Oriented Diagnostic System Management for Powertrain Control Units with OBD," SAE Technical Paper 980512, 1998, https://doi.org/10.4271/980512.
Pages:
16
Abstract:
This paper describes the concept of the Diagnostic System Management DSM which introduces an improved object-oriented software architecture in order to meet the high performance and reliability requirements of automotive On-Board Diagnostic Systems (OBD).DSM handles standard tasks and offers services to integrate diagnostic and control functions. This architecture enables the flexible composition of system-independent, reusable function implementations. Hence a distributed software development and software sharing are supported.The module DSM consists of a Fault Code Memory, an Inhibit Handler, a Validator and a Function Scheduler. Special care has been taken to achieve robustness against EMI effects. Bosch will use DSM in the future powertrain control systems.
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