2020 Kia Sorento SX, 2013 Hyundai Elantra GT Tech pkg. Former 2014 Kia Rondo EX Luxury,
No worries Good tip about engineering mode...I'll have to check it out for sure!Sorry for the confusion then. My point was that even the newest generation doesn't support Wireless Android Auto despite being equipped with a proper hardware. You can enter engineering mode in your car and check if it has a WiFi module.
You need to get a phone case with metal liner and one of these!I'm not worried about charging, my phone doesn't fit properly in the forward console compartment with the USB plug in, I have a fairly large phone. If you put any lateral stress on the USB jack, it will likely damage the jack, that would be unfortunate. My grandson kills the USB port on his phones in about 6 months, I've had this Galaxy S8+ for around 3 1/2 years, and it's as good as new, I'll bet it's got another couple good years in it. I would like the convenience of having the AA connect automatically without taking the phone out as well. If I had the wireless, I could plug the charger in on the phone in the glovebox and drop it in there, it would be charging and it would fit without putting pressure on the USB connector.
And its not going to be attracted to a magnetic mount.A thin aluminum case is going to a very poor job of blocking low frequency magnetic fields.
Did you ever think to look at the materials that case is made of?Pitaka MagCase is working very well with wireless charging. I got few myself.
I'm in awe, you figured out how to do this and yet Google had to cut a hole in the aluminum to allow the phone to charge!Permeability <> Faraday. -- rather different animals, and at different frequencies.
You can do the job with ferrous alloys and mu-metals, not much with other materials. Depends upon the metal of the case, and given what these cases are made from, it's not likely to be a major problem.
A thin aluminum case is going to a very poor job of blocking low frequency magnetic fields.
Also remember why aluminum pans won't work on an induction stove top.
Take a bunch of folds of foil between two decent magnets some time. Won't bother them a bit, apart from the spacing caused by the thickness of the aluminum. Inverse squared is a bugger in that regard, no matter what you're working with.
That makes no sense.
You're comparing static magnetic fields with AC induction.
Nope. Notice prior comment >> "That goes for non-static fields at ELF frequencies as well."
I was just trying to provide an experiment that anyone could do at home.
I tried four different chargers with the same test with aluminum foil, including the one in my 2020 Sorento. NONE of them will charge through the aluminum foil. That's zero out of four, all different brands.
Evidently all with the same design issue. They're seeing something that is causing them to shut down. You can't very well charge anything if that happens.
I know about magnetic shielding, in the avionics industry for engine instrumentation, we used MuMetal shielding heavily on engine sensors for that very reason. However, we're talking apples and oranges here.
If charging through the aluminum works so well, you still haven't explained why Google, who I expect has some pretty sharp engineers, had to cut a hole in the Pixel 5 case back to allow wireless charging.
The phone designers, who probably understood the underlying physics and hence, had no reason to anticipate failure, were being thwarted by something done by the charger designers. Again, my original comment was to point out that the physics should prove no insurmountable problem for these case designs, not that there might be some underlying flaw in the design concept that keeps them from working properly.
At some point, you might actually do some testing if you expect to prove your point.
I will do so, though it may take a few days to get around to it. Gotta wind the coils. Remember, my original argument was with regard to the materials in question. See if you find this acceptable:
24V 20VAC transformer through (I'll decide later) a coil of x feet of xx gauge wire. Oscilloscope connected to an equivalent coil of wire. Supply current through transformer. Place coils in fixed proximity to one another. Observe nifty 60Hz signal on oscilloscope. Slide aluminum foil between the coils while continuing to observe the oscilloscope for signal attenuation. Compare.
Having dealt with this issue innumerable times in equipment design, I've done the empirical testing with other devices. If there's an issue with cell phone chargers, than it's an issue with cell phone chargers.
It's not tough to demonstrate that a magnetic field passes through a piece of aluminum foil, providing the control for the magnetic field doesn't shut down of its own accord, which oddly, seems to be what is happening with these consumer chargers.