The ZIEHL-ABEGG ZAwheel, the most effcient electric drives for town busses, now gets an extension which makes it even more economic and smart: The ZIEHL-ABEGG ZAwheel plus vEMS transfers all interesting and necessary parameters between a central server and the electris bus. vEMS is a monitoring system by ViriCiti, which can recognise if single batteries are low on energy. Before the whole battery needs to be exchanged at high cost, a faster and cheaper reaction is possible. In the same way, traffic situations, charging opportunities and range can be ideally integrated into the planning of routes and runtimes.