Download now - ASAM

26
case studies
dSPACE GmbH:
eCu Development tool
integration Based on aSam ae
Standards
Solutions Guide 2011
Summary
Challenge: When automotive electronics are
developed, engineers often have to cope with
a heterogeneous tool environment, i.e., specialized
tools for different development tasks
such as rapid control prototyping (RCP), hardware-in-the-loop
simulation (HIL), ECU diagnostics,
ECU calibration, and bus communication
analysis. Nowadays these application areas
are beginning to overlap.
Solution: dSPACE’s new ControlDesk Next
Generation is central experiment software for
ECU development based on established standards,
especially ASAM. With ControlDesk
Next Generation, simulation platforms and
ECUs can be accessed from one single software
tool, data can be easily exchanged between
projects, and tool interface problems
resulting from a heterogeneous tool environment
are avoided. Key Benefits: This all helps
OEMs and suppliers make significant savings in
time and costs.
Situation
Typically, a large number of different specialized
tools are used in the development of automotive
electronics, e.g., for rapid control prototyping
(RCP) in the lab, on a test bench or in the
vehicle, for hardware-in-the-loop simulation
(HIL), for ECU calibration, for ECU diagnostics
and for bus communication analysis. Previously,
such tools were largely used separately,
but now their application areas are merging.
For example, ECU diagnostics and ECU access
via calibration tools on the HIL simulator are
playing an increasingly important role, enabling
the ECU fault memory to be read out and
reset during a test scenario. Connecting measurement
equipment and including bus communication
in data acquisition and evaluation
are becoming more important in RCP and HIL
applications. There is an increasing need for a
seamless overall process that allows user interfaces,
measurement data and parameter sets
to be reused across development steps.
ChallengeS
Although different application areas have similar
tool requirements, users are often dependent
on using several different tools in parallel.
A typical application example that illustrates
this challenge is the automatic validation of new
software versions for different ECUs (see Figure
1). Applications like this require central experiment
software from which users can access
the HIL simulator, the requirements management
tool, the ECU diagnostics tool, the test
automation tool, and the ECU itself.
SuCCeSS Strategy
dSPACE’s new ControlDesk Next Generation
has been designed as a central experiment tool
for ECU development and unites functionalities
that today require different specialized
tools. Using ASAM standards, several users’
requirements were put into practice:
• The central experiment software provides a
large number of interfaces for various application
areas. This includes support of ASAM
MCD-1 (CCP and XCP, particularly XCP on
CAN/Ethernet/FlexRay) for ECU access and
the corresponding descriptions via ASAM
MCD-2 MC (ASAP2).
• To integrate ECU diagnostics with Control
Desk Next Generation, CAN- and K-linebased
access is available via ASAM MCD-2
D (ODX) with diagnostics protocols such as
KWP2000, UDS, TP2.0 and GMLAN.
• A measurement data manager handles the
measurement data, which can be exported
in standard formats such as MAT or ASAM
MDF for evaluations.