Stanton wrote: ↑
Thu Oct 15, 2020 6:16 am
alozzy wrote: ↑
Wed Oct 14, 2020 1:28 pm
Seems really unlikely that Nissan will make available an upgraded TCU on older model LEAFs, especially not an affordable one. Their TCU design is stupid anyways...
They should have used an off the shelf daughter card, like those found in cell phones, and provided a SIM card or the option to use your own SIM. Also, they could easily incorporate Wifi connectivity, so that you can choose to connect to your home Wifi or a cell phone hotspot as an alternative to a dedicated 3g or 4g data plan.
I'm going to stick to the facts, because I'm not sure you understand how the technology works (it's basically IoT/telematics):
1) Their TCU design was good for it's time...and I believe they will offer a 4G upgrade for the Gen 1 Leaf as it will share components/design elements with the Gen 2 Leaf (EVconnect is definitely not going away)
2) WiFi connectivity is a huge security risk, which is why they still don't offer that option even today
3) Even if the TCU/daughter card was easily accessible (and it's not), there would be no way for Nissan to control/enable service compatibility with a user-supplied SIM card; you can't even do that with a phone (without carrier intervention).
The TCU has always been a step behind with respect to the connectivity. 2G became prevalent in the mid 90s, 3g in 2001/2002, 4g in 2010 or thereabouts.
Why do you think 2g/3g are inherently more secure than Wifi? AES256 encrypted Wifi is pretty secure. They could also use mutual certificate authentication, for even better security
A modular wireless radio card could be easily located in a more accessible location. The current location of the TCU is irrelevant.
Please explain what you mean by this:
"there would be no way for Nissan to control/enable service compatibility with a user-supplied SIM card; you can't even do that with a phone"
The SIM is activated by the cell provider and, once activated, should just work. Why would Nissan need to be involved in that process? If they did OTA updates, then I could see your point - but they don't...
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
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Loving my first BEV