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ETAS Understanding INTECRIO
These interfaces can be defined differently from case to case, but they must be defined exactly and completely in any case.
3.1.3
3.2
Car manufacturer
Supplier
Vehicle development
Subsystem development
Car manufacturer
Supplier
Drive train development
Chassis development
Bodywork development
Multimedia development
Fig. 3-4 Responsibilities of car manufacturers and suppliers. The interfaces entered (dot-dash-lines) are examples.
The AUTOSAR partnership develops a standardization of basic system and
interface functions. INTECRIO V4.7 supports AUTOSAR; see chapter 4 for more
information.
Possible Steps
One could say now that the best way for a cost reduction consists of first defining the functionality that a vehicle must have, and then to determine which hardware is required for the system to run.
However, this would mean to redevelop the complete vehicle functionality at once, which would involve significant effort and even risks. Therefore, it would be more obvious to first describe today's electronic system and to control the complexity it contains. INTECRIO was developed for this reason. As soon as it is under control, optimization is the next step.
Additional information can be found in
• J. Schäuffele, Dr. T. Zurawka: "Automotive Software Engineering – Principles, Processes, Methods, and Tools".
Description of Electronic Systems
A complete electronic control unit description requires a description of the hardware as well as the software. As mentioned above, today's software can no longer be viewed only as a collection of different software components that run on independent electronic control units. Frequently, a complete control algorithm is already distributed across several electronic control units and, therefore, must be viewed and described as a whole, without orientation to the special electronic control unit.
INTECRIO V4.7 - User’s Guide 16
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