Quote:
Originally Posted by jamesqf
What makes you so sure it's a problem?
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I deal with this stuff for a living. A cell phone or TV antenna have completely different shielding requirements from a 3 phase motor. Most cell phones today are already shielded on the front side facing your ear. Thats why you don't see phones with stubby little antenna sticking out anymore. Today the antenna is usually built into a fractal pattern CPB in the back side of the handset.
You can also kill the majority of high power radio transmissions simply by traveling on the lower deck of a cantilever bridge. It doesn't take much more than a very loose faraday cage. A large 3 phase electric motor and its control module will need much tighter shielding. The fact that honda didn't catch this on its first gen insight is very disturbing. This needs more independent testing. The current regulations for EMI only deal with other electronic and radio devices. It doesn't take in the account its effect on the human body. So long as the motor doesn't interfere with the electronics on the car or other nearby vehicles its technically legal. Generally speaking its assumed that so long as there is at least 1 uninterrupted ferrous panel between the the motor and the occupants, there should be plenty of shielding. The problem here is that manufacturers are mounting the battery and control unit inside the cabin of vehicle. You need to put the vehicle on a dynomometer inside an EMI chamber to get a good idea of what the human body is being exposed to in these cars.
I would be very interested to see a study on the cancer rate in people that have done 100k miles or more in one of these cars 10 years from now.