Tracking down errors
Vehicle connectivity is in flux, shifting away from conventional systems and toward complex network architectures. This poses huge challenges for vehicle manufacturers with everything from data collection to validating the full vehicle. IAV offers a comprehensive big data value chain and provides support for testing all electrical and electronic components with innovative methods (data analytics) and proprietary systems.
«OEMs are taking new approaches to meet the challenge. We help them to validate the new network structures and make them transparent using both proven and innovative analytical methods.»
— Team manager for data analysis and reporting
Network structures and data analysis
Automotive manufacturers require deep insight into the world of big data. IAV helps them visualize what computer scientists program and engineers develop. Interactive dashboards and structured reports allow OEMs to trace flows of data and network communications throughout the entire system.
To achieve this, IAV has created a holistic data analytics value chain that encompasses all of the services needed to analyze measurement data, from data recording to preparation and interpretation and to visualization. “Companies can use these data to track down errors and make solid decisions – we give them the tools to do it,” Benedix says.
It starts right away with the documentation of the data in the vehicle. Modern measurement technology is used to determine which information should be recorded, when, and in what formats. Vehicle connectivity has changed a lot in this regard as well: Concepts for logging measurement data have been adjusted with an eye to performance and data recording so that the volumes of data generated – which are unusually large by past standards – can be processed efficiently. Data that used to take up just a few gigabytes (GB) of storage, can in some of todays test drives reach up to 200 GB each.
The data are stored in the measurement data platform, which gives OEMs a comprehensive management tool. The Web-based front end gives them a full overview of all vehicles, measurement devices, and analysis. Because the data are transmitted in real time, they can even perform analysis and troubleshooting while a test drive is in progress.
Fehlersuche und Reportings
The interactive data features allow even users with no programming skills to browse for certain events in their data, using simple search language. Machine learning algorithms support the process of searching for possible errors by identifying anomalies in the data patterns.
An automated measurement data analysis feature (AMeDA) shows customers complex contexts surrounding various errors. To this end, data scientists and data analysts from IAV generate reports in line with customer questions, programming templates that visualize certain matters in diagram form. After that, the customer can pull the report automatically from the measurement data platform. AMeDA and interactive data analysis are highly flexible, as these systems can be adapted individually to any data
format or data logger. Both tools are also distinguished by their scalability and expandability, which makes the entire tool chain future-proof. Even if vehicles generate zettabytes of data, the interactive data analysis and AMeDA process the data quickly,
without any issues. In this way, the IAV value chain harnesses rapid automated analysis and direct visualization on dashboards to unlock direct findings to resolve errors and provides the openness and flexibility needed for future-oriented engineering.
The article appeared in automotion 03/2021, IAV’s automotive engineering trade magazine. Here you can order the automotion free of charge.