01/19/2021 In case of imminent accident, new brake assistant for Liebherr wheel loaders reduces stopping distance

  • Brake assistant and incident map: new functions for active personnel detection at the rear, an intelligent wheel loader assistance system
  • Brake assistant: automatic speed reduction to avoid accidents
  • Incident map: safe work sequences thanks to risk zone identification

Active personnel detection is an innovative assistance system for the Liebherr L 526 to L 586 XPower® range of wheel loaders. Liebherr has now added two extra functions - the brake assistant and incident map - to active personnel detection. The brake assistant automatically slows the speed of the wheel loader to a standstill the moment the active personnel detection issues a warning signal. The incident map displays potential risk zones on the site using GPS data in LiDAT - Liebherr’s in-house transfer and location system.

Statistically speaking, accidents with wheel loaders occur most frequently when the machine operator reverses after a loading process. This reverse travel is particularly risky if people are located in the wheel loader’s operating area. In these situations, there is a huge responsibility on the machine operator. Construction machine accidents can often result in severe injuries and significant damage. To ensure maximum safety, Liebherr is therefore continuing to develop its assistance systems. A current example of this is active personnel detection at the rear which now has an integrated braking assistance function and an incident map.

The Liebherr brake assistant automatically decelerates the wheel loader the moment the active personnel detection identifies a source of danger in the rear area.

The Liebherr brake assistant automatically decelerates the wheel loader the moment the active personnel detection identifies a source of danger in the rear area.

The Liebherr brake assistant automatically decelerates the wheel loader the moment the active personnel detection identifies a source of danger in the rear area.

Brake assistant: automatic speed reduction reduces stopping distance

Active personnel detection visually alerts the machine operator via the display screen and sounds acoustic signals if there is danger in the wheel loader’s rear area. In order to provide a specific warning of imminent injury to people, the assistance system, using smart sensors, provides specific warning of people in the rear area of the wheel loader at a greater distance than for obstructions such as walls, columns or other vehicles. This means the assistance system avoids unnecessary signals, thereby reducing the burden on the machine operator and causing fewer distractions.

The moment the active personnel detection system identifies a source of danger, the brake assistant slows the wheel loader down to a standstill. The braking process is therefore initiated at an earlier stage and quicker than in the case of traditional braking since, with the brake assistant, there is no delay caused by human reaction time. This means there is an important reduction in the stopping distance which, in turn, reduces the frequency and severity of accidents.

In the case of the brake assistant, the hydrostatic components of the drive train automatically reduce the speed. This means the machine operator can continue to operate the wheel loader service brake in the normal way and can do this in addition to the brake assistant.

Using the incident map, the Liebherr wheel loader operator can identify risk zones on the site and implement measures to avoid accidents.

Using the incident map, the Liebherr wheel loader operator can identify risk zones on the site and implement measures to avoid accidents.

Using the incident map, the Liebherr wheel loader operator can identify risk zones on the site and implement measures to avoid accidents.

Incident map: risk management thanks to display of danger zones

Besides the brake assistant, a second new function for the active personnel detection at the rear is the incident map. Each time the assistance system detects a danger and a warning signal is issued, the system transmits a GPS signal to LiDAT, Liebherr’s in-house transfer and location system. On the basis of this signal, and for each operator of a wheel loader with active personnel detection, Liebherr provides a Google map in LiDAT showing these GPS points.

The result is an incident map displaying the risk zones and potential sources of danger on the site. The operator can use this to take measures to prevent accidents and therefore increase safety. For example, the operator might reroute footpaths, cordon off areas and alter dangerous work sequences. The head of operations can use the incident map to train employees and make them aware of risky situations.

Active personnel detection with brake assistant and incident map is also available for the new series of mid-range Liebherr wheel loaders.

Active personnel detection with brake assistant and incident map is also available for the new series of mid-range Liebherr wheel loaders.

Active personnel detection with brake assistant and incident map is also available for the new series of mid-range Liebherr wheel loaders.

Additional intelligent wheel loader assistance systems for increased safety

Liebherr offers several intelligent assistance systems for its mid-range and large wheel loader series. In addition to active personnel detection, these include adaptive working lighting, front space monitoring, the skyview 360° camera system, the tyre pressure monitoring system with sensor support and the new weighing device. Liebherr’s goal with the assistance systems is to increase safety and comfort and to support the machine operator. All systems have been developed by Liebherr and are therefore fully integrated in the machine control.

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Contact person

Martin Koller

Marketing and Public Relations

Liebherr-Werk Bischofshofen GmbH

Dr. Hans-Liebherr-Straße 4

5500 Bischofshofen

Austria


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Liebherr active personnel detection at the rear 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. *Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Irland; Mutterunternehmen: Google LLC, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA

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