Smart hydraulic actuator

Smart hydraulic actuator

Electrohydraulic actuators work like compact, highly capable “power houses” on the rail vehicles and are tailor made solutions for several application areas. The current application areas in rail vehicle construction reach from yaw damping, active lateral positioning, car positioning systems and active radius steering to tilting technology.

Electrohydraulic actuators fulfil demands of the future development of rail infrastructure – especially in reducing environmental burden, minimizing wear and noise while improving the performance of the rail vehicle.

Increased riding comfort

Electrohydraulic actuators are designed to position loads of several tons at train speeds up to 350 km/h into the pre-set position predetermined by an intelligent control unit or counter vibrations on the vehicle.

Electrohydraulic actuators play an important role in fulfilling the requirements for high train speeds and provide increased riding comfort.

An additional and essential advantage of this technology lies in the massive reduction of vehicle and infrastructure wear. Initially higher investment costs are offset by considerably reduced overhaul expenses, reduced energy expenses und increased transport capacity within short time.

Easy and low-cost installation

Electrohydraulic actuators are closed hydraulic systems.

Liebherr carries through the assembly, filling and final inspection at very high purity conditions, thus ensuring a trouble-free and long-living operation under the harsh conditions of rail traffic. The car builder therefore only needs to mount the electrohydraulic actuators into the rail vehicle and connect the power supply and the control unit. Thus, costly and time-intensive installation works that are necessary for classic hydraulic systems with hydraulic pipe laying and filling and bleeding the systems can be reduced.

Therefore, the risk to pollute the hydraulic channel by improper installation and to possibly damage the actuator is eliminated.

Electrohydraulic actuators - a “plug and play” solution

Electrohydraulic actuators are essentially maintenance-free. In the very unlikely event of a failure, the complete unit can be replaced without any hydraulic knowledge in a short time. Due to this simple way of installation, long downtimes can be excluded.

These innovative systems are controlled by a microprocessor controller also developed by Liebherr specifically for rail applications. The software can be programed, depending on requirements, to Security Level SIL2 acc. EN 50128. Liebherr’s electrohydraulic actuators can be adjusted for almost all customer requirements and support a quick, comfortable and above all safe arrival at the destination.

Downloads

Video - Innovation prize for Liebherr-Transportation Systems

Liebherr-Transportation Systems applied in 2016 for the "Lower Austrian Innovation Prize" concerning its hydraulic actuation systems. This short video explains our innovative technology.
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Liebherr-Transportation Systems applied in 2016 for the "Lower Austrian Innovation Prize" concerning its hydraulic actuation systems. This short video explains our innovative technology. Play video
Liebherr-Transportation Systems applied in 2016 for the "Lower Austrian Innovation Prize" concerning its hydraulic actuation systems. This short video explains our innovative technology.
We need your consent This YouTube video is provided by Google. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google. By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time expressly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide suitable safeguards to protect your data and offset this shortcoming. Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, criminal prosecution or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective means of redress being available to you. You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.

Liebherr electro-hydraulic actuators

Learn more about electro-hydraulic actuators developed, manufactured and serviced by Liebherr-Transportation Systems in this animated clip.
We need your consent This YouTube video is provided by Google. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google. By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time expressly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide suitable safeguards to protect your data and offset this shortcoming. Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, criminal prosecution or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective means of redress being available to you. You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.
Learn more about electro-hydraulic actuators developed, manufactured and serviced by Liebherr-Transportation Systems in this animated clip. Play video
Learn more about electro-hydraulic actuators developed, manufactured and serviced by Liebherr-Transportation Systems in this animated clip.
We need your consent This YouTube video is provided by Google. If you load the video, your data - including your IP address - is transmitted to Google and may be stored and processed by Google inter alia in the USA. We have no influence over further data processing by Google. By clicking on "Accept", you consent to the transmission of data to Google for this video in accordance with Art. 6 (1) (a) GDPR and at the same time expressly consent to the transfer of data to the USA in accordance with Art. 49 (1) (a) GDPR. If you no longer wish to consent to each YouTube video individually in the future and wish to be able to load the videos without this blocker, you can also select "Always accept YouTube" and thereby consent to the associated data transmissions and transfers to Google and to the USA for all other YouTube videos which you open on our website in the future. Please note that, in the opinion of the European Court of Justice, there does not currently exist an adequate level of data protection in line with EU standards in the USA, and at present we cannot provide suitable safeguards to protect your data and offset this shortcoming. Possible risks to you of data transfer to the USA are that access by state authorities cannot be excluded and that your data could be processed for reasons of national security, criminal prosecution or for other purposes in the public interest of the USA, possibly without you being informed separately and without enforceable rights and effective means of redress being available to you. You can withdraw consent that you have given at any time with future effect via the settings. For further information, please see our Data Protection Declaration and Google's Privacy Policy.

Contacts

Liebherr-Transportation Systems GmbH & Co KG

Liebherrstra├če 1

2100 Korneuburg

Austria

  • Phone+43 5 08 09 51-0
  • Fax+43 5 08 09 51-500