Technologies for the future
We believe in innovation – with continued investments into research and development Liebherr-Transportation Systems design solutions and components for the future of the railway industry.
Originally, air cycle air conditioning technology was developed for the aerospace industry, where it has been used for more than four decades for air conditioning in aircraft. As one of the very first companies, Liebherr also began employing this technology in rail vehicle equipment. In 2002, Liebherr-Transportation Systems fitted a train of German operator Deutsche Bahn AG (DB) – an ICE 3 – with air cycle air conditioning systems for test runs. Additional fittings for the first model series as well as 13 eight-car trains of the second model series of the ICE 3 followed.Learn more about Liebherr’s participation in the ICE 3
Environment-friendly and successful
Since then, the systems have proven extremely successful in DB's daily passenger transport operations. They are characterized, in particular, by their environmental friendliness, their robustness and their low operating costs. Furthermore, the energy consumption of air cycle air conditioning systems is extremely low compared with conventional systems. This has been verified, among other ways, through comparative measurements by DB.
The very successful results of the air cycle air conditioning systems are not only an affirmation for Liebherr-Transportation Systems, but also an incentive to work intensively on further developing air cycle technology and to make it usable for a wider spectrum of applications.
Green technology for railway vehicles
Li-Ion Battery Cooling System
Liebherr-Transportation Systems have been selected by the rail vehicle manufacturer Bombardier Transportation GmbH of Mannheim (Germany) to develop and produce a compact and reliable cooling system for an innovative Li-Ion battery.
These batteries will be employed in the next generation of electric drive systems, which are set to power urban transit buses and light-rail vehicles in the future. The highly efficient cooling system will ensure that the battery runs under optimal thermal conditions. Prototypes of the system are being tested both at Liebherr's ultramodern test facilities and on demonstrator vehicles at Bombardier.
The Li-Ion battery is an integral component in Bombardier’s highly innovative inductive battery charging system PRIMOVE®. This system enables the main battery of the electric drive system to be recharged without contact to the trolley wires, so the vehicle does not have to interrupt its operation. The battery charging system will play a major role in reducing CO2 emissions in urban traffic.
Thermal Conditioning Units
Liebherr-Transportation Systems has been selected by ITT Cannon to supply active cooling units for its liquid cooled DC High Power Charging (HPC) solution. This contract enables Liebherr to contribute significantly to the further development of electro-mobility. Initial units of the cooling units, cables and connectors have already been delivered for assembly in EV ultra-fast charging stations in the USA and Europe.
The prototypes of the active cooling units - also known as Thermal Conditioning Units (TCU) - have been developed by Liebherr-Transportation Systems GmbH & Co KG, Korneuburg (Austria) specifically for e-mobility charging stations and were extensively and successfully tested beforehand by ITT Cannon, together with Efacec’s Electric Mobility division, one of the world leaders in fast and superfast charging. Liebherr's technology cools the innovative high-performance ITT Cannon HPC charging cable and connector to reliably limit a rise in temperature during the charging process.
The TCUs, in combination with the liquid-cooled cable and CCS connector, enable charging of electric vehicles. Installation in the first high-power charging station network, with an output power of 350 kW, a maximum current of 350 A and a high voltage of 1,000 V, have taken place in both the USA and Europe. In addition, the Liebherr team is developing additional cooling units to meet the increasing market requirements.
The Universal HVAC Standard for Multiple Railway Platforms
Liebherr-Transportation Systems has developed a modular air conditioning system which responds to the most challenging market requirements of the railway industry.
MACS 8.0 provides the highest degree of standardization. The modular architecture of MACS 8.0 allows flexibility and adaptability to serve diverse rolling stock applications.
- Multi-platform standard
- Standardized design
- Flexible configuration
- Flexible service concepts
- Availability secured by modularity
- Cost efficient operation
- Constantly evolving product
- Future-proofed HVAC standard anticipates new cooling technologies
- Flat profile: just 220 mm high
- Weighs only 125 kg per module
- 70 % greater cooling power density
- 8 % less power consumption
A significant reduction of greenhouse gas emissions is a major precondition for a sustainable traffic system covering all means of transport. Rail transport is generally considered as being green due to a high level of electrification, although not all railway tracks are electrified.
Railway operators and train manufacturers are working on green propulsion technologies to be introduced into locomotives and rail cars. One promising solution is the use of hydrogen in a fuel cell propulsion system.
Liebherr is part of this historical transformation process by offering its outstanding and highly reliable motorized compressor technology to fuel cell system integrators, based on its huge experience in fuel cell technology for automotive applications and in the aerospace sector.