Creating Digital Twin of Electric Vehicle Battery
Isoaho, Jesse (2023)
Isoaho, Jesse
2023
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2023090725430
https://urn.fi/URN:NBN:fi:amk-2023090725430
Tiivistelmä
The project aimed to find a pipeline for creating digital twins of electric vehicle batteries and then make the digital twins interactable. The client Switzerland Innovation Park Biel/Bienne needed this for a project where the aim is to train robots in digital environments to disassemble battery packs or battery modules and transfer the robot's skills into the real world where there is no need to teach the robot as it is taught in the digital environments.
Digital twins are replicas of real products or environments. They have all the same physics and characteristics as the actual product or environment. This allows a whole new kind of space in how it is possible to test products or factories before they are developed or built and make them better from the start.
The pipeline needed to be made so that the digital twins are supported by Omniverse. Omniverse is a software that allows different simulations in a digital environment. The pipeline was created so that the battery would first be modeled in Onshape, then imported to Omniverse with an importer built between the two software. The importer allows modifications for the parts tessellation, which is essential for simulations. The pipeline was tested by reverse engineering by the Hyundai Konas Battery Pack and by modifying the Leclanché module M2 step file in Onshape, and it was proven to work.
The Module of the Kona battery Pack was made to be interactive based on the Factory: Fast Contact for Robotic Assembly research and the demo scenes that were in Omniverse. This was made possible by using Omniverse's different features for rigid body simulation. And as a result, created five different simulation scenes where different parts of the Module were made to be interactive, and they had real physics in the simulations.
The project achieved to create a pipeline to make digital twins to Omniverse and make the different parts of them interactable. This is base knowledge for making other batteries interactable. In the future, this knowledge is modified to be used for reinforcement learning.
Digital twins are replicas of real products or environments. They have all the same physics and characteristics as the actual product or environment. This allows a whole new kind of space in how it is possible to test products or factories before they are developed or built and make them better from the start.
The pipeline needed to be made so that the digital twins are supported by Omniverse. Omniverse is a software that allows different simulations in a digital environment. The pipeline was created so that the battery would first be modeled in Onshape, then imported to Omniverse with an importer built between the two software. The importer allows modifications for the parts tessellation, which is essential for simulations. The pipeline was tested by reverse engineering by the Hyundai Konas Battery Pack and by modifying the Leclanché module M2 step file in Onshape, and it was proven to work.
The Module of the Kona battery Pack was made to be interactive based on the Factory: Fast Contact for Robotic Assembly research and the demo scenes that were in Omniverse. This was made possible by using Omniverse's different features for rigid body simulation. And as a result, created five different simulation scenes where different parts of the Module were made to be interactive, and they had real physics in the simulations.
The project achieved to create a pipeline to make digital twins to Omniverse and make the different parts of them interactable. This is base knowledge for making other batteries interactable. In the future, this knowledge is modified to be used for reinforcement learning.