The electronic control network in vehicle systems is becoming increasingly complex. Reliable operation of the vehicle is highly dependent upon accurate diagnostics from the system. For a very long time now, FKFS has been deeply involved in the field of diagnostics. The Institute develops diagnostic functions in control units on behalf of our customers: both as classic onboard and offboard diagnostic functions, as well as remote functions over-the-air. In doing so, our engineers are pushing forward the general trend of harmonizing diagnostic functions and protocols globally (e.g. OBD/OBD2, UDS, DoIP), as well as meeting new challenges arising from the electrification of the drivetrain and automated driving.
Telemetry enables measurement and diagnostics data from the vehicle to be transmitted to a remote server for evaluation. We at FKFS are able to provide our customers from the automotive industry with efficient support. Different hardware and software architectures are used depending on requirements: even the control units in the vehicle must condense diagnostic values into lean packets of data which can be transmitted reliably. A variety of data transmission paths are available for this. The data is prepared on the server for a comprehensive diagnostics function.
The networked vehicle of the future will communicate and exchange data with other vehicles as well as with traffic infrastructure. This is actually an important prerequisite to enable the safe implementation of automated driving functions in the real world. All kinds of architectures and interfaces may be used to achieve this. At FKFS, we support our customers on a case-by-case basis: with our thorough knowledge of mobile telecommunications standards, IoT protocols and with our experience of practical applications.
In remote diagnostics, classic diagnostics functions such as vehicle access, computing power and vehicle parameters are no longer conducted from the vehicle using defined hardware interfaces. Instead, these are performed over-the-air, split between separate domains: vehicle, back end (server) and front end (user interface). These domains must be harmonized with each other to permit efficient remote diagnostics. The performance of the overall system is particularly important here, and FKFS is able to support our industrial customers regarding this issue.
ROSI Technology GmbH, the majority-owned subsidiary of FKFS, also deals with remote systems. As a start-up company, ROSI Technology GmbH acts as a competent partner in the field of vehicle electronics, diagnostics and communication. This subsidiary manufactures the corresponding products, markets these complete solutions, operates the data management and provides support for these solutions, which were often developed at the FKFS.
Onboard and Offboard Diagnostics
Diagnostics communication is vital for diagnostics and data collection in the vehicle, as well as for offboard evaluation. In the age of e-mobility, onboard and offboard diagnostics are of growing significance – for example, when evaluating the performance of traction batteries. FKFS has an overview of all the standards used by international automotive manufacturers and we support our clients in the application of this knowledge.
Each vehicle produces huge amounts of data with every kilometer, with an upwards trend as the degree of networking increases. This data can be valuable – even beyond the individual vehicle – for example, if an entire fleet of vehicles is being analyzed. Reliable collection, coding and preparation of this data is essential for trouble-free diagnostics – whether onboard/offboard or remotely. FKFS works with all the common protocols (XCP, ISO-TP, ODX, DBC, A2L), using them for customer-based diagnostics as well as for universal interface tests, automated diagnostics and test sequences.