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With electric and hybrid powertrains becoming increasingly popular in both passenger cars and public transportation, additional measures are needed to ensure driver and passenger safety. As HV battery usage continues to grow, automatic systems must be available to handle specific emergencies such as a battery explosion or a fire resulting from equipment damage.

Even in the event of a crash with only moderate damage, there's the concrete risk of current leaking from the HV battery into the metal chassis or frame, exposing occupants, rescue workers and first responders to potentially fatal electrical shocks.

ST’s dedicated passive safety solutions based on pyroswitches can activate specific countermeasures such as battery disconnects or fire extinguishers to remove or reduce the risks related to crash events involving HEV/PHEV and BEV. Our pyrotechnical safety switch system triggers controlled micro-explosions, cutting the wiring between the high-voltage battery unit and the rest of the vehicle, thus reducing or eliminating the flow of current and risk of electric shock or fire.

Flame, smoke and thermal sensors in addition to accelerometers can communicate with the vehicle’s airbag system, battery management system or vehicle control unit to activate the proper countermeasure.

ST’s passive safety products serve the global automotive market with several millions of parts produced annually. Our airbag systems and deployment drivers are well established robust products with many years of proven experience in the field. 

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      SEL-PROT-TVS

      Active

      Transient voltage suppressor smart selection tool

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      SEL-PROT-TVS

      Description:

      Transient voltage suppressor smart selection tool
    • Part number
      Status
      Description
      Type
      Supplier

      ST Diode Finder

      Active

      Diode product finder application for Android and iOS

      Finders Apps ST

      ST Protection Finder

      Active

      Protection product finder application for Android, iOS and Wandoujia

      Finders Apps ST
      ST Diode Finder

      Description:

      Diode product finder application for Android and iOS
      ST Protection Finder

      Description:

      Protection product finder application for Android, iOS and Wandoujia