The Banke battery pack E-PTO is designed to perform work functions refuse trucks and crane vehicles at low noise levels and to limit emissions. This newsletter features a small part of the battery pack - the Battery Management System also called BMS.
Dependent on the system voltage, a battery pack consists of a large number of cells that are connected in series and partly also in parallel. The BMS monitors the performance of each Li-Ion cell to ensure maximum performance and long life time considering the following:
Temperature The BMS measures the temperature of the cells and protects them against too high temperatures and thermal runaway. The battery pack does not charge under a preset minimum temperature and it stops charging or discharging when the temperature exceeds a set maximum temperature.
Balancing There will be voltage difference between the single cells during charging as the cells are connected in series. This affects the system performance and the BMS therefore charges/discharges each single cell to make sure all the cells are optimized as a series. This is called balancing. When the battery pack is used on a daily basis, the balancing, as last part of the charging, only takes a few minutes to complete.
Diagnostics The BMS analyses each and every cell in the battery pack. Dependent on this data, the control unit of the battery pack will start a built-in heating system ensuring that the battery pack has the correct temperature before it starts charging. Moreover, it can also locate a single cell that has gone "bad" and needs replacement. This is not expected during lifetime of the battery pack, but in case it happens, the mechanical design of the battery pack is made in such way that the "bad" cell can be replaced easily.
In case you have questions to the Battery Management System or the Banke E-PTO in general, please contact us
MLarsen, Copenhagen, Denmark has ordered 4 units of the new CM22 Banke E-PTO. This system is mounted on the chassis frame instead of between the cabin and the body.
MLarsen retrofitted the first E-PTO CM22 on an existing vehicle in their fleet and will use this vehicle in two municipalities near Copenhagen. Delivery is expected in May 2016.
MLarsen refuse truck with CM22
CM22 can be mounted either on one side of the chassis or split into two parts to be mounted on each side of the chassis.
MLarsen has at split design mounted on both sides of the chassis.
START/STOP for Zwechverband Hildesheim, Germany. This community has ordered a Banke E-PTO with Zöller, Nord. The Magnum XXL is an open back truck that will be used in bulky waste. The refuse truck visits 40 households with bulky waste per day and requires more than 5 minutes for collection at each stop, which is why the chassis engine is shut-off during collection. This means less emissions and fuel savings (the chassis uses 2.4 litres/hour idling) and less noise than in conventional refuse collection. Delivery is expected in May 2016.
Vereino, Oslo, Norway has ordered 12 pcs of E-PTO Large to serve the city of Oslo. The collection is divided into 4 sectors and in their latest tender, they specified that 3 E-PTO-driven refuse bodies should be contained in each sector. The E-PTO battery packs will power Joab Anaconda refuse bodies. Delivery is expected in April/May 2016.