In-Vehicle Networks (IVN)
Working without a driver - the new harvesters
Networks such as CAN, LIN, FlexRay, MOST and also now Ethernet form the backbone of the vehicle. Besides solutions for passenger vehicles, EBV for example also offers intensive support for Ethernet solutions which are used in agriculture. In various applications in this area, CAN is often too slow so that the data bandwidth is simply not adequate. Construction machinery also often requires the high bandwidth, which only Ethernet offers at present. Ethernet has a clear advantage when for example it is necessary to capture the cutting result of a combined harvester together with the GPS data and to process this data immediately. This data is then used again as input for the application of fertiliser and seed in the following year. For instance if a meandering surface stream makes the seed too wet at certain places time and again, then the system can also decide to apply no seed at all at these places. Both in North America and in South America, many combined harvesters operate now without a driver; this is much easier there than in Europe because of the very large fields.
Communication between cars
Various experimental projects are currently in progress in the area of Car-to-Car Communication (C2C). EBV is supporting these projects – among other things with its high-frequency and WiFi know-how.
Internet access for each vehicle in future
Soon there will be no more newly-registered vehicles without the ability to access the Internet. This access is done using 3G or LTE technology.
Keyless entry with RF-systems
Locking systems belong in the area of RF systems for applications such as remote keyless entry (radio frequency operation instead of a mechanical key), as well as tyre pressure control systems or the wireless connection of non-critical system sensors to the other systems of the vehicle.
WLAN interface directly in the vehicle
More and more often, access to the OBD2 socket is achieved via a WLAN adapter plugged in at that point. All the communication with the workshop tester is done here via the WLAN interface. The next step is then a matter of bringing the WLAN interface directly into the vehicle and installing it permanently. If for instance a vehicle is equipped with a WLAN hotspot, then the manufacturer must decide whether the workshop is allowed to carry out an identification of the vehicle by WLAN or not.
Find a exact location - accurate to the millimeter
Where geographical data needs to be localised, then the engineers usually require modules that in most cases work with GPS. These types of module are available for instance from NXP. However, EBV also has modules for GLONASS and Galileo in the range - for example from TI, but also from ST. EBV therefore also supports systems that use GPS, GLONASS and Galileo in parallel, to make it possible to achieve an exact location, which is accurate to almost the millimetre. This also allows country-specific requirements to be well implemented: according to the specifications of the Russian legislation, automatic emergency calls (eCalls) in Russia must not be made using GPS, they must use the GLONASS system. The official reason for this is the fact that GLONASS provides more exact data than GPS.