Chronos Part 2

A Large Step Within Testing of the Vehicles of the Future

Previously, we have presented the project Chronos in our channels. A few weeks ago, we were for example looking back on Chronos part 1 together with Martin Djup (if you missed it, it is available HERE). Now, it is time to dig into Chronos part 2! 

Chronos part 2 aimed to develop part 1, and expand the possibilities for the test system which were developed in the first part of the project to be able to manage more types of test scenarios and simplify reproducibility of test scenarios in the test track. The research project is financed by FFI (Strategic Vehicle Research and Innovation), on initiative by AstaZero. AstaZero is the world-renowned test track outside of Borås, and this is where the project has been carried out. The project involves many collaboration partners: Ericsson, Volvo Car Corporation, AB Volvo, Inceptive, VTI, Veoneer, Rise and ESI. Within the project, Fengco has integrated the simulation environment dSPACE ASM (Automotive Simulation Models) in the test system that was developed in Chronos part 1. This is a well-established simulation environment, with a user-friendly toolbox for modeling roads and scenarios. By implementing ASM in Chronos part 2, we have been able to move out the test scenarios, that usually are executed in a HIL environment, to the test track. In this part of the project, we have implemented three important functions: virtual object injection, dynamic trajectories and V2X communication.  

Implementation of virtual object injection is about including several objects in the test scenario that only exists in the simulation, but not on the real test track. The information about what the virtual objects does is distributed to the vehicle on the test track. Those virtual objects enable testing of situations which otherwise would be impossible. Dynamic trajectories are about being able to update the vehicle route when the test is running. In previous stages of the project, all the object’s routes were predetermined. But, since it is impossible to predict how an autonomous vehicle will react and at what time, you need to be able to change the routes while the test is running, to perform desired test scenarios. In the project, it has also been possible to connect the objects on the test track with V2X communication, to test V2X related functions with the test system, virtual objects included.  

By implementing these three scenarios we have taken great strides towards meeting the requirements on the testing of autonomous vehicles. Being able to implement virtual object injection, dynamic trajectories and V2X communication in those scenarios is revolutionary in the industry. In addition, being able to do this in an efficient and reproducible way means that we have taken a large step in the development of the vehicles of the future.  

When asking Martin what he is most proud of during the project, he replies that it is how much they have been able to do during the project, and how much the small group of people has achieved during two years of hard work. He is very pleased with the result of the project, and that it could be shown during a nice and successful final demo! 

If you are curious and want to know more about the result of the project, please contact Martin at You can also read more at AstaZero’s and at Vinnova’s webpage.

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