Improved side impact car safety : New IIHS side crash regulation, effect on product design

• Main Author: Bäckman, Andreas
• Format: Bachelor Thesis
• Language: English
• Published: Luleå tekniska universitet, Institutionen för ekonomi, teknik, konst och samhälle 2022
• Subjects: Side impact beam; IIHS; side crash; side impact crash testing; crash testing of automobiles; industrial design engineering; automotive design; product design; Sidokrockskydd; sidokrock; sidokollision; sidokrocktestning; krocktest av bilar; teknisk design; bildesign; produktdesign; Other Engineering and Technologies not elsewhere specified; Övrig annan teknik; Luleå
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-93810

23% of passenger vehicle occupant deaths in 2019 was side-impact collisions and is a ongoing problem that continues to take people’s lives (IIHS, 2021a). IIHS (Insurance Institute for Highway Safety) is an organization based in USA, which performs vehicle crash tests with the goal of making cars safer and reducing deaths and injuries. In 2023, a new, tougher side crash test will be introduced by IIHS in the USA to tackle those crashes and save lives. The goal for IIHS with their vehicle tests is to urge the car manufacturers to make safer vehicles. Manufacturers in the automotive industry knows that the customers are using the ratings as a guide before buying a vehicle, which forces them to adapt the vehicles to pass the tests and have a good rating. In early crash tests with the updated side crash test, a lot of vehicles from a selection of different manufacturers struggled to pass the test requirements and it seems like the new test requires change of component strength and design. This is a master thesis project in Industrial Design Engineering with the focus on Product Design, at Luleå University of Technology (LTU), and has been performed on behalf of Gestamp HardTech at their R&D department in Luleå, Sweden. The early parts project focused on finding which car components has the largest influence of the crash result, where the components might need to be reinforced or having less strength. To help simulating the side crash, full vehicle side-impact crash simulations were used in this project with a virtual reference FEM car made by Gestamp, GLAB G3 EV. This project has been using the CDIO-design process, which stands for Conceive, Design, Implement and Operate. In the first phase, Conceive, simulations were made and the current IIHS side crash test was compared with the new IIHS test. The left-side side-impact beams was chosen as the components to trying to improve in the project. Creative methods in the Design-phase were generated ideas, which was 3D CAD modeled in CATIA V5 and tested with three-point ...