Liebherr has developed a concept of control for railway applications which meets the standards for electronic railway vehicles.
For more than one decade, Liebherr has successfully integrated the BK3 controller in heating, ventilation and air-conditioning systems (HVAC) and hydraulic applications globally. Due to evolving requirements from the railway industry Liebherr-Transportation Systems have developed a replacement controller: the BK4 microprocessor controller with modern interfaces and more capabilities in a smaller package.
This controller’s capabilities cover all current and forecast needs regarding the HVAC systems, the hydraulic systems and obsolescence topics for the future. BK4 will also feature optimal adjustment to the controlled system due to its scalability. It can also adapt to different train network and maintenance interfaces.
Industry-standard interfaces and capabilities as well as centralized application software approach enable to achieve a cost-effective solution for a complete system.