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24.01.2013

PRODIS.MCD makes DSA tool suite DoIP-ready

With the new product versions for production and Aftersales systems DSA took a step towards the future of diagnosis. With compatibility to new standards the door to diagnosis of an IP-networked vehicle has been pushed open. The MVCI server PRODIS.MCD has a key role as it is the link between the diagnostic application and the electronic systems in the vehicle.

After the official MCD-3D/MVCI Server standard in version 2.2.0 (ISO 22900-3) has been withdrawn because of lacking downward compatibility at the initiative of DSA , no passed standard was available for about two years. At the end of December version 3.0.0 has been published as new standard ISO 22900-3. This version is now compatible with ODX 2.2.0 (ISO 22901-1) and supports the new diagnostic protocol DoIP (Diagnostics over IP, ISO 13400). DSA played a decisive role at development of this standard.

Over the years in productive use PRODIS.MCD has been well-proven and is a key component for the standardized vehicle diagnosis at numerous customers. With release 3.1.0 PRODIS.MCD offers full DoIP support. With this new diagnostic protocol the Internet technology finds its way into the vehicle. The test device communicates via 10/100 MBit Ethernet connection and TCP/IP or UDP/IP protocol with the vehicle's electronic control units. The high bandwidth of Ethernet in relation to e.g. CAN bus makes DoIP an interesting alternative for today's CAN network. Although in first tests only the gateway ECU communicates via DoIP and the other ECUs are linked via CAN, it can be foreseen that IP networking will not stop at the vehicle's E/E ECU network.

The DSA tool suite for production and workshop diagnosis already supports DoIP communication. Particular applications around DoIP will be enhanced by separate function modules in our authoring and runtime environments in the course of the year.

Since PRODIS.RTS version 3.4 that has been released at the end of last year the static vehicle selection is implemented with DoIP, i.e. vehicle communication can be carried out via Internet protocol. A mixed communication via DoIP and CAN is still possible. The assignment of test device and vehicle is still fixed so that no vehicle selection is required.

In the next step the test device should be able to select vehicles dynamically. The test device has to detect the vehicles that can be accessed via DoIP and provide the opportunity to select the vehicle to be tested. Vehicle communication is completely done via DoIP protocol.

There are a lot of ways to connect test device and vehicle:

  • Cable-based
  • WLAN adapter inside the vehicle
  • External WLAN adapter (e.g. a PRODIS.WDI is connected as a WLAN router)
  • External VCI that is equipped with a built-in protocol driver for DoIP (e.g. PRODIS.WDI in a future variant)

Using DoIP in Aftersales has a lot of benefits. Vehicles that are connected to the workshop network via LAN or WLAN can be addressed by different diagnostic systems.

In the future the automated execution of dedicated diagnosis tasks by central test and diagnosis computers might be possible.


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