Bosch planning to make electric car crashes safer… with explosives
Amongst all the advantages of electric mobility such as its smaller effect on the planet, there are still disadvantages to strapping a battery to the underside of your car.
When electric cars have large accidents, the wiring can become damaged and send huge amounts of electricity through the car’s chassis and metal panels. Obviously, this could make saving vehicle occupants rather dangerous for rescue workers.
Current electric vehicles have various systems that cut the power supply electronically when a crash is detected. However, if that system gets damaged, we’re back to square one with a high voltage Faraday Cage preventing passengers from getting out of the car.
With this being a fairly serious issue, Bosch has brought it upon themselves to design an additional safety feature that cuts off the electric supply without the need of functioning wires. The German technology company’s solution is a set of microchips controlling small explosive charges which will isolate the battery by blowing off the cables.
Just like the explosives that trigger airbags, the Bosch semiconductor microchips, or so-called pyrofuse, is set off by the G-force created by a sudden deceleration of the car involved in a crash.
“Faced with the growing number of electric vehicles that could potentially be involved in collisions, such systems are absolutely essential if we are to fulfil our mission of helping and rescuing victims of road accidents as rapidly and safely as possible,” said Karl-Heinz Knorr, vice-president of the German firefighters association.
In fact, thanks to the Bosch pyrofuse technology, first responders wouldn’t face the risk of trying to extract vehicle occupants from a car with up to 800 volts being sent through its bodywork.