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What to do with the battery of an electric car during a crash?

Bosch is presenting an interesting concept in US patent application publication¬†20170253114 which published earlier this week. In essence, the Bosch engineers are concerned with the relatively large mass of the battery in an electric vehicle. Which makes sense: The kinetic energy of an object is directly proportional to its mass. So if 30% of an EV’s mass is in its battery, so is 30% of its kinetic energy. And rapidly decelerating the battery during a crash causes large forces.

So, the idea goes, the battery should be connected to the vehicle body with a novel kind of attachment which includes a fluid that can be displaced during a crash, thereby controlling the deceleration of the battery. I love the simplicity of the idea and the basic physics behind it. Certainly more creative than many other applications I have been reading.

 

 

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