Pyrofuse Technology Makes Electric Cars Safer Following an AccidentNovember 20, 2019
Electric cars are fuel efficient, less expensive to run and maintain, and are better for the environment, yet batteries used in these vehicles have been known to catch on fire after an accident. Lithium batteries that are used in electric cars are prone to thermal runaway, which occurs when there is a sharp temperature increase in the battery, causing it to catch on fire or explode. Bosch, an auto supplier, developed a new system involving small explosions that disconnect the battery pack in the event of a car accident. This system, known as pyrofuse technology, will make the rescue and escape process much safer for first responders and vehicle occupants.
Bosch’s new system uses a series of small, controlled explosive charges in an electric vehicle’s battery. These charges will isolate the power supply if the vehicle is involved in a collision. The vehicle’s pyrotechnical safety switch system will generate small explosive charges that will disconnect the wiring that connects the high-voltage battery unit to the rest of the vehicle. Four small wedges cut the wires, which also cuts the current flow. This reduces the risk of electric shock caused by a short from the accident damage, making it safer for vehicle occupants and first responders.
How Pyrofuse Works in an Accident
When a gas-powered vehicle is in an accident, the inertia switch shuts off the fuel flow. Pyrofuse serves the same function as the inertia switch. The system is not reversible, however, and it does not use up the battery pack’s stored energy. If the battery pack is breached, it is possible that it can catch on fire. The pyrofuse technology uses tiny semiconductor chips called application-specific integrated circuits (ASIC). According to a member of the executive management of Bosch’s Automotive Electrons division, each ASIC has millions of transistors that will respond within a fraction of a second.
For years, Bosch has used a version of the ASIC that is used in the pyrofuse system. They used this ASIC, called CG912, in airbags. In 2018, a battery-safe version of the CG912 was introduced at a trade show. According to Bosch, the CG912 has been proven effective in the field. The company has not, however, announced which automakers were using the safety pyrofuses in their vehicles. This does not help first responders who are approaching the scene of a car accident. They have no way of knowing which electric vehicles are more dangerous than others, if they could be electrocuted, or if the battery will catch on fire while they are attempting to rescue the occupants of the vehicle.
Baltimore Car Accident Lawyers at LeViness, Tolzman & Hamilton Represent Victims of Accidents Involving Electric Cars
If you or someone you know was injured in a car accident involving an electric vehicle, contact the Baltimore car accident lawyers at LeViness, Tolzman & Hamilton as soon as possible. Batteries in electric vehicles can cause serious injuries if they catch on fire or cause an electric shock. We will determine who is responsible for your injuries and take every step necessary to secure the maximum financial compensation you deserve. To schedule a free consultation, call us today at 800-547-4LAW (4529) or contact us online.
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