US 12,145,431 B2
Pyrotechnic brackets for electric vehicle
Robert Wassmur, Gothenburg (SE)
Assigned to POLESTAR PERFORMANCE AB, Gothenburg (SE)
Filed by Polestar Performance AB, Gothenburg (SE)
Filed on Nov. 23, 2021, as Appl. No. 17/534,154.
Prior Publication US 2023/0158877 A1, May 25, 2023
Int. Cl. B60K 1/04 (2019.01); B60R 21/01 (2006.01); B60R 21/0132 (2006.01); H01M 50/249 (2021.01)
CPC B60K 1/04 (2013.01) [B60R 21/0132 (2013.01); H01M 50/249 (2021.01); B60K 2001/0438 (2013.01); B60K 2001/0466 (2013.01); B60R 2021/01013 (2013.01); B60R 2021/01252 (2013.01); H01M 2220/20 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electric vehicle battery pack release system configured to cause a physical separation of a battery pack from an electric vehicle on to which the battery pack is mounted, the system comprising:
one or more pyrotechnic bracket assemblies configured to operably couple the battery pack to the electric vehicle;
one or more sensor configured to sense a state of the electric vehicle; and
an electronic control unit configured to receive data from the one or more sensors and to trigger an explosion in the one or more pyrotechnic bracket assemblies to affect the physical separation of the battery pack from the electric vehicle, whereupon activation of an explosive charge is configured to rapidly expand to force a projectile into a fastener with a force sufficient to sever the fastener.