Harrislee Laboratory (HaL)
After a construction period of just under two years, the KBA laboratory commenced operations on August 19, 2021. At its core are two modern roller dynamometers for exhaust gas measurements, which are used not only for pure vehicle tests but also for calibrating the KBA's own mobile exhaust gas measuring devices (PEMS). In addition, the laboratory is equipped with state-of-the-art measurement technology and air-conditioning and IT systems. The modern functional building with its 1,400 m² gross floor area also meets all the energy requirements for today's new buildings.
Today's vehicle technology is a highly complex system, the essence of which is regulated by legal standards that are as complex as they are demanding. At the same time, today's state of the art is subject to ever shorter innovation cycles, so that testing methods are also subject to a constant development process. Not only the increasingly stringent requirements in the area of exhaust and noise emissions, but also the developments in the field of highly automated to autonomous driving therefore require independent, reliable and efficient government monitoring. In our KBA laboratory, the engineers and technicians employed here have access to the necessary testing infrastructure with state of the art measurement technology as well as air-conditioning and IT facilities to carry out a wide range of measurements for vehicle safety and environmental protection.
KBA-President Richard Damm, 2021
Flensburg, 19. August 2021. Das Prüflabor des Kraftfahrt-Bundesamtes (KBA) wurde heute nach rund 2-jähriger Bauzeit durch Richard Damm, Präsident des KBA im Beisein externer Gäste offiziell eröffnet.
Kernstück des Prüflabors in der Gemeinde Harrislee sind zwei moderne Rollenprüfstände für Abgasmessungen, die neben reinen Fahrzeugprüfungen auch zur Kalibrierung der KBA-eigenen mobilen Abgasmessgeräte (PEMS) herangezogen werden. Darüber hinaus ist das Labor mit modernster Messtechnik und mit Klima- und IT-Anlagen ausgestattet. Der moderne Funktionsbau mit seinen 1.400 m² Bruttogrundfläche erfüllt zudem sämtliche energetische Anforderungen an heutige Neubauten.
Richard Damm: „Dieses Prüflabor ist ein bedeutender Meilenstein in der Geschichte des KBA. Die Marktüberwachung durch das KBA erhält mit dem Labor eigene Messtechnik, die im Bereich der Abgasmessungen zum Einsatz kommen wird, und mit dem Blick auf die Entwicklung künftiger Fahrzeugtechnologien weitergehende Prüfungen ermöglicht.“
Das KBA steht bei der Marktüberwachung an der europäischen Spitze. Mit dem neuen Prüflabor baut das KBA seine Prüfkapazitäten weiter aus und setzt international Maßstäbe. In Zukunft werden in Harrislee und auf der Teststrecke in Leck auch alternative Antriebe und neue Technologien unter anderem im Bereich des autonomen Fahrens untersucht. Das KBA wird für die Entwicklung auf diesem Gebiet in Zukunft einen entscheidenden Beitrag leisten.
Ansprechpartner: Stephan Immen, Telefon: +49 461 316-1293
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KBA uses portable emission measurement systems (PEMS) for both gaseous pollutants (gas PEMS) and particulates (PN-PEMS) in its investigations of vehicles sourced from the field. KBA uses two axis roller dynamometers for the emission behaviour tests. Here, the legally prescribed driving cycles such as the NEDC (New European Driving Cycle) and WLTC (Worldwide harmonised Light-Duty vehicles Test Cycle) can be run under legally prescribed ambient conditions (air temperature/humidity). In addition, the ambient temperature can be varied between -20 °C and +40 °C on the air-conditioned chassis dynamometer. KBA tests also cover test cycles, whose driving profile may deviate from the legal requirements. In this way, KBA is able to analyse emissions behaviour in comparison with real-world driving and tests under laboratory conditions. Furthermore, the driving profiles driven in real road traffic can be reproduced on the chassis dynamometers.
Another test facility is the sealed housing for evaporative determination (SHED). This is required because gasoline fuels in particular tend to escape from the vehicle's storage and piping systems. These harmful HC (hydrocarbon) emissions, as well as other evaporated components, must be recorded and evaluated under legally prescribed conditions. KBA's full range of competencies is rounded off by its in-house software analyses, which examine the manufacturers' engine control software for its functions and any inadmissibility.
Finally, the new framework Regulation (EU) 2018/858, which has been in force since September 1, 2020, results in a broader range of tasks in the area of product testing. New technologies, such as driver assistance systems and partially and fully autonomous driving systems, are coming to the fore and will account for an increasingly large proportion of KBA's product tests.
The basic measurement principle of emission measurement on exhaust gas roller test benches is full flow dilution (CVS). The exhaust emission from the vehicle is diluted with ambient air in a defined measuring section called dilution tunnel. The dilution reduces the relative humidity in the exhaust gas. The measure is necessary because some analysers are cross-sensitive to water and could thus influence the measurement result.
The vehicle follows a fixed speed profile that varies, depending on the type of test. This is displayed to the operator on a driver control screen. The load machines on the roller dynamometer simulate a vehicle-specific driving resistance. The headwind fan blows against the vehicle at the appropriate vehicle speed from the front in accordance with regulations.
The analysers of the laboratory can detect all exhaust emissions with a limit value and de-termine its concentration.
The figure shows the technically complex relationship between the individual system components of an exhaust emission roller test bench as an overview block diagram.