Setting trolleybusses free
Flexible and clean local public transit of the future – we’re reinventing it!
YouTube video 2:09 minutes
The LibroDuct technology not only enables conventional battery-operated buses to recharge while standing at bus stops, but also driving their routes. The result is a drastic reduction in the battery capacity they need. Moreover, trolleybuses using the LibroDuct technology can also travel sections of their routes without overhead wiring, without the necessity for manual recontacting or even for any contacting assistance tools. These and other virtues of LibroDuct bring about significant savings in infrastructure and increased flexibility.
Uninterrupted driving made possible by a patented charging technology
Automatic contacting and disconnection guidance from overhead wires based on computer software methods
Charging on the move
Optimization of the electrical drive with charging en route
LibroDuct from the customer’s viewpoint
Bus operators with trolleybuses
With LibroDuct you can utilize your available network of routes more flexibly. It makes it possible to expand them, or convert diesel buses to trolleybuses without any additional infrastructure. Complex existing infrastructure (wire switches or “frogs”, crossings, parallel sets of wires) can be “slimmed down”, critical sections (e.g. in front of historical buildings) can be designed without overhead wires.
Bus operators without trolleybuses
Electric buses with LibroDuct represent an especially clever variant of opportunity charging, which itself already earns points for lowering needed battery capacity (leaving more capacity for carrying passengers): rather than just recharging at the end of the line, for example, they can recharge while driving their routes (in-motion charging). This makes charging independent from stationary periods, affording the operator additional flexibility.
Municipalities and Public Policy
LibroDuct helps save costs: It’s enough to equip 25% of a route with overhead wires. Wire switches (frogs), crossings, and parallel sets of wires may be dispensed with completely, problematic sections can just be omitted. Thanks to decades of proven trolleybus technology, the electrification of whole networks of lines can nowadays be accomplished easily and quickly. With zero emissions, a municipality can earn favor with its citizenry; TCO costs are comparable to conventional diesel buses. This holds true both for the recharging of electric buses/battery-operated buses as well as for more flexibly deployed existing trolleybuses.
With LibroDuct, plan a municipal public transit system of the future, and with modern e-mobility, make your contribution to cleaner air and quieter cities.
Bus and Systems Manufacturers
As a current collector system, LibroDuct is compatible with standard, everyday current collector systems and overhead wires for trolleybuses. It offers signal inputs, signal outputs, as well as an adaptable SAE-J1939 interface for coupling with the bus’s own available CAN-bus or the one in the current collector control unit.
The LibroDuct Technology
The core of the LibroDuct technology consists of sophisticated software algorithms which utilize computer vision methods in the form of stereoscopic pattern recognition. With the help of LibroDuct, trolleybuses can contact overhead wires and disconnect from them fully automatically, both on the move and while stationary, e.g. at bus stops. The hardware from LibroDuct is modeled after conventional pole collectors and overhead wire systems. The technology is based on an internationally patented control system that utilizes various software-supported techniques.
Performant image processing and pattern recognition software analyzes the stereo camera images.
Customized algorithms analyze the situation and plan the execution of the contact and disconnection processes.
Cleverly designed mechanical components form the basis for precision guidance in contacting wires and disconnecting from them.
In combination with its new, likewise patent-pending mechanical components in the current collector system, LibroDuct enables trolleybuses to alternate automatically between driving with and without overhead wires. This is how it’s paving the way for e-mobility in local public transit, anywhere and everywhere.