SIMULATION
Simulator bridges reality gap
Spanish engineering consultancy takes on simulation to virtualise its real world testing facilities to reduce automotive development times
simulators from VI-Grade: the DiM250 and a compact simulator. As a result IDIADA can now offer virtual testing, so reducing development times in areas such as chassis development, vehicle dynamics and connected autonomous vehicle (CAV) development.
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BRIDGING THE VIRTUAL GAP By exploiting the synergies between physical and virtual testing, IDIADA can generate and correlate models in optimal context using its tracks, available as public road data files, and high-resolution graphics. “The driving simulator is a key facility in our chassis and vehicle dynamics development projects as it links up our virtual and real activities.” says Roger Mateu, head of vehicle dynamics and NVH at Applus+ IDIADA. Engineering grade driving simulators use track or
road data available from a number of libraries that help simulate real driving conditions, for example city driving or high-speed intercity highways. What differentiates the virtual testing laboratory in Spain is the fact that the simulator replicates the proving ground available at the facility so virtual test runs can be mapped and compared to real world experiences on the test track.
ESSENTIAL DEVELOPMENT TOOL The level of accuracy of virtual vehicle models, the precision of movements of the motion platform and the availability of rendered tracks has reached an unprecedented level of accuracy, making driving simulators an essential tool in the development and testing of new vehicles. Results coming from driving simulators are reliable and CAE engineers, together with test drivers, can take important decisions before building the first prototype and hitting the test track for the first time.
panish automotive engineering, testing and development organisation, Applus+ IDIADA, has expanded its capabilities into the virtual world by adding to its traditional proving grounds two driving
According to Alessio Lombardi, sales director for
south Europe at VI-Grade, IDIADA selected the DiM250 Dynamic Driving Simulator and COMPACT Simulator from VI-Grade to gain better insight into the correlation between track testing and simulation, to help its customers develop cars faster and better and to provide a multi-disciplinary laboratory to find the best trade-off between different vehicle targets. “What IDIADA is doing is a sign of the revolution
that is happening in the way cars are developed nowadays and engineers and drivers here are getting ready for the near future,” comments Lombardi.
DIM250 SIMULATOR The new simulation lab’s main feature at the Spanish proving ground is the dynamic DiM250 simulator, which can generate longitudinal, transversal and rotational acceleration forces up to 2.5g, characterised by extremely low latency and high-frequency, replicating a wide range of vehicle dynamics manoeuvres and reproducing complex driving situations. The DiM250 main simulator is complemented by a compact driving simulator that shares the same main features, except for the motion system. The DiM concept from VI-Grade involves a new
motion platform and the provision of “Driver-in- Motion” facilities providing the ability to appraise vehicle chassis performance as well as ride comfort in one simulator. For the DiM250, VI-Grade has moved away from
the conventional hexapod style motion platform to provide a larger operating space for the platform and achieve the actuation and motion dynamics that relate to modern automotive design. The company has worked on the cueing (or
signalling) to the driver to obtain highly realistic, low latency and quick response reactions in the simulator to driver actions as well as supplying integrated motion and visual feedback to the driver to provide the most realistic driving experience possible. T&TH
December 2019 /// Testing & Test Houses /// 19
❱❱ The Driver-in-Motion
simulation system at Applus+ IDIADA replicates the Spanish company’s proving grounds
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