lorenfb wrote:Nubo wrote:lorenfb wrote:You are aware that not all vehicle problems can be resolved by OTA updates, i.e. there're ECUs which can only be re-flashed (updated)
by having the vehicle at the service department using the vehicle's diagnostic tool, e.g. for Nissan - the Consult tool. And in many cases,
the ECU can't easily be re-flashed by the OEM's diagnostic tool, but must be sent back or replaced by the ECU's OEM, e.g. an ABS ECU,
a suspension controller, or the motor controller. A good example is the present Nissan Leaf problem with the TCU module causing
problematic issues with the 12V battery, i.e. most likely the TCU in all likelihood must be replaced. So OTA updates are useful for tweaking
UI issues and major mods to the AP system, but is very limited when it comes to major problematic running/driveability issues. ...
If you're designing a system from the ground up with an OTA update strategy, then I'd reckon you'd push as much logic as possible into the OTA-updateable firmware, leaving only bare-bones startup and limp-mode logic in the EEPROM.
But Tesla is NOT designing ALL the ECUs used in its vehicles! Where did you get that idea? Let me guess, MNL forum? Tesla doesn't have the
engineering resources or the fab capability to produce all the unique sub-systems it needs. As an example, Nvidia doesn't provide re-flash
capability to Nvidia's GPU, e.g. the processor's control store or logic, used by Tesla's AP function. Yes, Tesla can re-compile its source code
for AP and then OTA download, i.e. to a unique flash memory in the GPU, mods to the functionality of the AP but NOT how the GPU functions.
Nvidia maintains proprietary control over that flashable section of the GPU.
Tesla can OTA fully flash firmware on any device on the car that has firmware, not tweak but fully flash. This includes ABS modules, steering wheel buttons, and every item on the car and every little part NOT just Tesla made parts. Sorry you are yet once again misinformed. No other auto maker does this. Where do you get your information, the Google? Please take off your Nissan hat it's old and weathered. Would you like to make a pizza bet on this? I know you pass every single time I offer.