FEATURE AUTOMOTIVE & MOTORSPORT
TAKING THE HIGH ROAD H
HORIBA UK has supplied MAHLE Powertrain with a VULCAN II ExtraCold 4WD rolling road for use in a vehicle test chamber capable of simulating at-altitude driving conditions
ORIBA Automotive Test Services has supplied MAHLE Powertrain with a four-
wheel drive (4WD) chassis dynamometer (a.k.a. ‘rolling road’) for its new Real Driving Emissions Centre (RDEC). The chassis dynamometer, a HORIBA VULCAN II 4WD ExtraCold unit, will be used in a variable control temperature and humidity test chamber that can be partially evacuated of atmospheric air to simulate driving at altitudes of up to 5,000m. The VULCAN II ExtraCold has a traversing
wheelbase (to accommodate vehicles with different front-to-rear wheel spacings), a speed range of up to 190km/h, a power rating of 450kW and an operating temperature range of -40 to 60o
C. The dynamometer provides a
resistive load to each of a vehicle’s rotating road wheels to simulate various driving conditions, such as driving up hill, and can be used to test front-, rear- and four-wheel drive vehicles. The dynamometer can also drive a vehicle’s wheels to simulate descending gradients for evaluating the effectiveness of a vehicle’s brakes and, in the case of a hybrid or (pure) electric vehicle, its regenerative braking system. Derek Wise, chief engineer, build and test, at
MAHLE Powertrain, comments: “The chamber is soon to be fitted with a suite of exhaust emissions testing equipment to satisfy the requirements of the new Worldwide Harmonised Light Vehicles Test Procedure. Though hill climbing is not part of the WLTP, vehicle manufacturers are keen to optimise their vehicles for real-life driving conditions, which means either taking prototype vehicles fitted with sensors out onto a variety of roads and in different conditions or using a test
The chassis dynamometer will be used in a variable control temperature and humidity test chamber
chamber that can replicate conditions and apply realistic loads.” Wise goes on to say the test chamber is the
first of its kind in the UK and MAHLE Powertrain has already received expressions of interest from existing as well as potential new customers. Ana Anyaeji, HORIBA UK sales manager,
comments: “We are honoured to be continuing our long-standing partnership with MAHLE in such an innovative and challenging project. We have been working closely with MAHLE for the last two decades and this commitment by both companies to advancing real driving emission
LASER TRIANGULATION SENSOR
Micro-Epsilon has launched a new laser triangulation sensor with integrated controller. The sensor is suitable for high speed, distance, displacement and position measurements in a wide range of applications, including automotive manufacturing. The new compact optoNCDT 1750 laser triangulation sensor succeeds the optoNCDT 1700 series of laser sensors. The optoNCDT 1750 provides a variety of new features combined with higher measuring rates, robustness and reliability. Based on an innovative web interface, the optoNCDT 1750 is easy-to-use and set up without requiring any additional operating software. The settings for the measurement task can be quickly selected using application-specific, predefined presets. These are available to suit a wide variety of materials and surface types, including metals, plastics and organics. These presets enable straightforward set up and help to optimise the sensor for specific tasks. The measuring rate is continuously adjustable up to 7.5kHz and can be individually adapted to suit each measurement task. Peak selection and
testing capability will see that relationship grow and strengthen over the coming years. This will be the first application within the UK of the VULCAN II ExtraCold in a variable barometric environment and will showcase the full performance capabilities and accuracy of the VULCAN product line.” HORIBA emissions equipment is scheduled for
installation in April and the test chamber is likely to be fully operational by mid-2018.
HORIBA UK
www.horiba.com/automotive-test-systems/
suppression of interference peaks enable reliable measurements on coated materials, measurement objects located behind glass and on film-sealed components. Data output is via analogue or digital RS422 interface. The optoNCDT 1750 also provides two switching outputs that are controllable. Due to the Advanced Real Time Surface Compensation (A-RTSC) feature, the sensor operates almost regardless of the target material and colour. The exposure time or amount of light produced by the laser sensor is optimally matched to the reflection characteristics of the target surface, which even enables the reliable measurements of difficult, changing surfaces. New evaluation software algorithms and enhanced components provide
even higher measurement accuracy and dynamics. High performance optics generate a small spot size onto the target, which enables very small objects to be measured accurately and reliably.
Micro-Epsilon
www.micro-epsilon.co.uk
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FEBRUARY 2018 | INSTRUMENTATION
/ INSTRUMENTATION
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