rFpro Creates Digital Twin of Tōmei Expressway

UK software specialist rFpro has been tasked by a major OEM to develop a digital replica of the Tōmei Expressway in Japan. This virtual model will primarily be used for powertrain calibration, focusing on enhancing driveability, efficiency and WLTP assessment, as well as facilitating high-speed development.
 
The Worldwide Harmonized Light Vehicles Test Procedure (WLTP) assessment involves evaluating various driving styles, route types and different weather and traffic conditions. Conducting such tests in the real world is time-consuming and costly, requiring a prototype vehicle. Simulation provides a more efficient testing method and enables development to commence while the vehicle or powertrain is still in the model-based stage.
 
As well as for from powertrain development, the extensive straight sections of the digital twin are also well-suited for high-speed testing, according to the companies. This encompasses assessing vehicle safety and stability, NVH, and testing ADAS and ADS in a high-speed environment.
 
The digital twin was created using survey-grade lidar scan data to generate a road surface with vehicle dynamics precision accurate to within 1mm in height. This precision is crucial for accurately simulating the effects of every bump, drain cover and painted line.


Source: Automotive Testing Technology International