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Testing

Is Covid-19 causing a major change to how vehicles are tested?

James BillingtonBy James BillingtonJanuary 8, 20213 Mins Read
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With the Covid pandemic effectively shutting down global travel, it has caused much disruption to the testing of new vehicles, which would typically be transported around the globe and put through their paces in extreme climates. As a result, the automotive industry may be on the verge of seeing a major shift in the testing process thanks to advances in chamber test facilities.

Mahle Powertrain, under strict Covid precautions, utilized its hypobaric and climatic capability of the company’s Real Driving Emissions Centre in Northampton, UK, for an OEM to replicate real-world drive cycles without the requirement for global travel normally associated with altitude testing. This has mitigated risk and significantly reduced testing time and cost when compared to traditional methods and, believes Mahle Powertrain, could result in a permanent change in the way testing is approached.

4WD chassis dyno

“Travel restrictions had the potential to generate a significant backlog in testing – Mahle managed to not only avoid delays during delivery of a program for a major vehicle manufacturer, but devised a more streamlined, cost-effective test schedule that could be completed faster than normally anticipated,” said Thomas Brooks, Mahle Powertrain’s head of calibration. “We think it’s the first example of a manufacturer completing an RDE test program, including at attitude, in the UK.”

Through strategic use of the chamber testing facilities at the RDE Centre, Mahle and its customer have managed to turn a potentially delaying, costly challenge into a production advantage. Replicating whole drive cycles in one controlled environment as opposed to shipping vehicles, engineers and associated hardware around the globe – even in a Covid-free world – makes a compelling commercial and engineering case. Brooks notes that, based upon MAHLE Powertrain’s own experience, engineer time combined with travel and subsistence costs can very quickly reach significant sums even for relatively modest test programs.

The main advantage of Mahle Powertrain’s facility is the ability to test in a precisely controlled environment that can replicate any necessary test condition. This includes aggressive climbs on a 4WD chassis dyno up to 5,000m with relevant barometric pressures, variable road gradients at temperatures between -40 and +50oC, and humidity levels of between 10 and 80%.

“The vehicle manufacturer carried out eight mountain test runs over a three-day period which would normally take 9-10 days plus travel and engineer time – with no guarantee of the stable conditions necessary for good test data,” said Brooks. “This test program provided a guarantee of safety – not only from Covid but from day-to-day road incidents – and crucially, repeatability. There are a number of factors to consider when extending physical location testing, such as logistics, accommodation, engineer time and vehicle shipping. It is much easier to simply book another day of test chamber time. This could mark the start of a real shift in the way powertrain test programs are planned.”

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Previous ArticleVolvo is tripling its electric car manufacturing output at Belgian plant
Next Article Coventry and Oxford in the running to be UK’s first all-electric bus cities
James Billington

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