A brand new methodology developed by researchers on the Graz College of Expertise might drastically enhance and simplify the approval course of for automated driving methods.
Driving simulator checks are used for a lot of completely different causes, particularly since they will simulate any situation nearly instantly. These eventualities will not be affected by time and climate situations, and there are not any security dangers for the car, folks, or the setting.
Driving simulators are additionally less expensive and require much less group in comparison with the actual factor.
Nevertheless, there are some questions surrounding the apply on the subject of automated driving.
Automated Driving and Driving Simulators
Arno Eichberger is head of the analysis space “Automated Driving & Driver Help Techniques” on the Institute of Automotive Engineering at Graz College of Expertise (TU Graz).
“Within the subject of extremely automated driving, nevertheless, driving simulator research are sometimes questioned due to the dearth of realism,” says Eichberger. “As well as, till not too long ago there have been no standardized take a look at procedures that might have been used to examine complicated duties such because the mutual interplay between human and system (handover procedures).”
The primary world regulation for Automated Lane Protecting Techniques (ALKS) was carried out to start with of 2021. In line with Eichberger, the regulation fixes the problem of highway approval.
“Till now, regulatory authorities didn’t know tips on how to take a look at and approve autonomous driving methods,” he mentioned. “The car producers, in flip, didn’t know what necessities the methods needed to meet as a way to be permitted.”
The laws have specified, on the idea of a site visitors jam assistant, the approval standards for extremely automated methods as much as a most velocity of 60 km/h. As soon as the assistant is activated, it turns into chargeable for management. The motive force can let go of the steering wheel, however they have to take over if there’s a malfunction. The system should additionally acknowledge that the driving force has this capability.
The New Technique
The brand new methodology developed by Eichberger and his crew from Fraunhofer Austria, AVL, and JOANNEUM RESEARCH was primarily based on the regulation. It is ready to safely, successfully, and realistically take a look at the readiness to take over management in a driving simulator. The outcomes can then be used for the certification of ALKS methods.
The crew needed to perform numerous processes to show the validity of the driving simulation utilizing the take a look at drive. There wanted to be a direct comparability between driving simulation and actual driving, which needed to match as intently as attainable.
The machine notion of the setting proved to be difficult on this regard.
“If that is to run the identical as in actuality, the environments within the simulation need to match the actual setting to the precise centimetre,” Eichberger mentioned.
The crew achieved this accuracy through the use of “Extremely Excessive Definition Maps” from JOANNEUM RESEARCH, which is a world main analysis establishment.
Patrick Luley is head of the analysis laboratory for extremely automated driving on the DIGITAL Institute.
“We use a cellular mapping system to measure the take a look at environments,” Luley mentioned. “Lastly, a seamless 3D map with a particularly excessive degree of element is created from the measurement information. Along with site visitors infrastructure objects equivalent to site visitors indicators, lane markings and guard rails, vegetation and buildings are additionally represented on this map.”
This automated UHD mapping course of is much sooner and extra cheaper than handbook 3D modeling.
The final step is for the high-resolution 3D setting to be transferred to the driving simulator.
In line with Volker Settsgast from the Visible Computing enterprise unit, “We put together the information in such a manner that the 3D setting will be displayed at excessive velocity.”
The validation is then verified by comparative runs on the actual route.
“With our methodology, it’s attainable for automotive producers to simply evaluate and validate a sure sampling on the actual monitor and within the driving simulator,” Eichberger says. “Which means the take a look at can in the end be transferred from the actual monitor to the driving simulator.”
The crew is now working to arrange digital approval checks over the following few months.