Bike-to-x communications protect motorcycle riders

Bike-to-x communications protect motorcycle riders
Technology News |
The risk to get killed in a traffic accident is for a motorbike rider 18-times higher than for a car driver. To reduce this risk, chipmaker Autotalks, automotive supplier Bosch and software vendor Cohda Wireless have developed a specific variant of the known vehicle-to-X (V2X) communications technology. Bike-to-vehicle (B2V) can prevent one third of all accidents where motorbikes are involved, the trio claims.
By Christoph Hammerschmidt


With the technology, vehicles within a radius of several hundred meters exchange data on vehicle type, position, speed and direction up to ten times per second. Thus, drivers get aware that a motorbike is approaching long before they can establish visual contact. This enables them to optimize their driving style and take into account other traffic participants that are not yet visible.


The data exchange between motorbike and car is based on the DSRC (Dedicated Short-Range Communication) which in turn is based on the IEEE802.11p standard. The protocol provides for short transmission intervals of only a few milliseconds between transmitter and receiver. This enables every traffic participant to generate and spread information relevant for the traffic events.


With the technique, also standing vehicles are generating data. To enable motorbikes and cars at greater distances can obtain the relevant information, the technology utilizes multi hopping: The data are passed on from vehicle to vehicle up to a certain distance.


Since motorcycles rarely have telematics services and are not obliged to support the eCall regulation, they typically are not equipped with a cellular modem Therefore, the simplest and cheapest connectivity for motorbikes is DSRC, Autotalk argues.  


Installed on a Ducati motorbike and several cars, the technology has been tested over the past months. Now Autotalks has announced that the related chipset is available; the complete solution also contains a software stack from Cohda Wireless and a GNSS receiver.


Related articles:

BMW Motorrad equips motorbikes with “smart” eCall system

Intersection assistant systems make use of car-to-x communications

V2X is not only for cars, NXP CTO suggests

Autotalks switches to higher gear in V2X chip market


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