Electric Vehicle GTR No. 20 Test Development, Validation, and Assessment

NHTSA-Vehicle Safety Research2021PDFTech ReportSchnorenberg, RobertFleck, JoeMGA Research CorporationUnited States. National Highway Traffic Safety Administration. Office of Crashworthiness ResearchUnited States. Department of Transportation. National Highway Traffic Safety AdministrationUnited StatesElectric automobilesVehicle safetyAutomatic test equipmentValidationGlobal Technical RegulationGTR 20Chevy BoltDOT HS 812 092693JJ918F000059Final Report, May 6, 2019 to February 14, 2020A global technical regulation for electric vehicles (GTR No. 20) was established in the Global Registry on March 14, 2018. GTR No. 20 introduced performance-oriented requirements that address potential safety risks of electric vehicles while in use and after a crash event, including electrical shocks associated with the high-voltage circuits of electric vehicles and potential hazards associated with lithium-ion batteries and/or other rechargeable electric energy storage systems. To assess the requirements of GTR No. 20, NHTSA initiated an effort to develop a detailed laboratory test procedure and conduct the associated tests on a commercially available electric vehicle. A model year 2019 Chevrolet Bolt was chosen. This project only sought to cover the in-use requirements of the GTR\u2019s sections 5.1, 5.3, and 5.4. This report outlines the draft test procedures that were developed for this project and the results of the in-use testing on the 2019 Chevrolet Bolt. Revised test procedures will be developed based on the findings of this project.111