Virtual reality makes it possible to perceive a vehicle during its design as in reality | Projects-vehicles

The CAVE system makes it easier, faster and more economical to design cars tailored to customer requirements

Vehicle design has come a long way in recent decades.

The designers have replaced their pencils with the 3D modeling and the engineers virtually test future models long before the birth of the first physical prototypes.

How ? Thanks to CELLAR (Cave Automatic Virtual Environment), a virtual reality system which allows you to move around and inside the vehicle during its design phase.

At the Titu Technical Center in southern Romania, the teams Dacia experienced this total immersion when designing the Dacia Jogger.

Result: the interior modularity and habitability of the Dacia Jogger have been optimized.

Direction Titu, where Dacia testers virtually take their place on board models that do not yet physically exist.

The small town of Titu is located 45 minutes from Bucharest. With just under 10,000 inhabitants, it hosts the second largest center ofRenault tests in the world after the Guyancourt Technocentre.

State-of-the-art technologies, network of tracks, dozens of benchestrialstorture chambers to test the resistance of materials and a CAVE chamber, for Cave Automatic Virtual Environment.

This is where Ionut, product ergonomics manager, plunges into a parallel universe to be as close as possible to reality.

Ionut, product ergonomics manager explains: “Cave is a tool that allows the user to have a simulation of reality. We can immerse ourselves in the vehicle and judge driver and passenger perception of safety, ergonomics and comfort, then apply adjustments in real time. »

The CAVE room is five walls, ten projectors and six million pixels.

The CAVE tool is used to validate the architecture of the vehicles in the design phase, before the creation of the first physical prototypes.

Thanks to its five walls onto which are projected videos stereoscopic, this space immersive plunges Dacia engineers into a reality that changes dimensions. The testers walk around the vehicle and board it as if it were an existing physical model.

The vehicle in the design phase can be modified in a few clicks, after a complete inspection carried out using 3D glasses and thanks to the multiple interactions between the testers.

Everything is tested with the precision given by the six million pixels: the ergonomics of the dashboard controls, visibility in the various corners of the vehicle, accessibility, comfort and design.

The Cave system complements the use of other tools such as virtual reality headsets.

Thanks to its resolution equivalent to that of the human eye and the interactivity between the different users, the vehicle in the design phase is perceived as in reality.

Ionut, product ergonomics manager explains: “This virtual reality system makes it possible to validate the characteristics of a vehicle in a very early phase of the project. Thanks to the reduction in the number of physical prototypes and the reduction in late modifications, we save more than 2 million euros per year. »

To test the third row of seats in the Dacia Jogger seven-seater station wagon, a mixed group of thirteen people was chosen to experience the virtual world. Children and adults (anthropometric measurements analysed!), women and men, various professions… the selection conditions are very precise for a perception that is as close as possible to reality. The course in the virtual world is configured to test all the sensations: passive driving (a film scrolls as if you were driving but the pedals are not active), static validations (visibility, ergonomics, design), physical perceptions (comfort, safety ). The impressions of users after the CAVE immersion led to the modification of the architecture of the Jogger: the second row of seats has been moved forward by 20 mm!

Ionut, product ergonomics manager explains: “We have optimized the interior modularity solutions and created a very comfortable third row for all passengers. We were able to modify the positioning of the seats in real time without impacting the project schedule. »

Andras, Expert Leader Renault Group, Immersive Simulation and precise VR: “In the future, several users will be able to interact on the same vehicle, in collaborative mode and simultaneously. The different technologies mini LEDs will make it possible to build CAVES in simple project review rooms to validate design solutions very quickly. »

Fast validations, multiple tests, economic gains, interactions between users, the advantages of this tool for the industry automotive are many.

The CAVE system makes it easier, faster and more economical to design cars tailored to customer requirements.

We wish to say thanks to the writer of this short article for this incredible content

Virtual reality makes it possible to perceive a vehicle during its design as in reality | Projects-vehicles


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