Tesla Inc (TSLA)

[boston745]

If EMC not maintained properly these systems may malfunction or even may fail to operate.

If we see the electric vehicle architecture large amount of electrical and electronic systems placed into a confined space. This causes electromagnetic interference or cross talk between these systems. If EMC not maintained properly these systems may malfunction or even may fail to operate.

Below is the image showing all the internal sources of EMI in most modern vehicles. While there are sources within ICE vehicles they are far fewer in number and more importantly far smaller EMFs as the voltage and amperage does not come close to that which EVs require.



One of the problems with established guidelines for proper EMC maybe because of the following:

Outside tests are done in a real-world on road driving conditions. In these tests the vehicle under test need to drive with maximum acceleration and deceleration to ensure maximum current during traction and regenerative braking. These tests will be performed on straight road where the magnetic fields due to earth is constant and in some cases on steep slope roads. 

Automotive companies test their cars during calm geomagnetic activity. They have no way of being able to factor in potential magnetic variance from earths geomagnetic activity. As you can see from my last post, the 4 EVs that all went out of control did so all over the US. Maine, Michigan, Florida, & California. You never know where surface magnetic activity will interfere with a passing EV.



https://circuitdigest.com/article/electromagnetic-compatibility-in-electric-vehicles