Oh wow, such a statement. He is clearly not a person who should make any claims about electronics.
There is a huge difference between some electronics failing due to some conditions, and electronics failing every single case, using the car normally. I can see, why electronics would fail in a car. Vibrations can break solder points in an ECU. Random mechanical part failing can wreak havoc in the electronics.
An ECU failing, because it is writing the same part of a flash memory? No, Mr Prescott, I'm sorry, but that's unacceptable, and bad engineering. What's next, you increase a counter every kilometers driven and if the counter is bigger than a number, new inverter for 5K?
Exactly my point.
Sure electronics have a hard life inside cars. And they do fail sometimes but ever since the introduction of fancy electronics in cars the car manufacturers have been pushing for there improvement to make them as reliable as everything else. They came up with AEC qualification for electronics components used in these fancy computers to make sure the components themselves are manufactured to proper specs required for automotive use. The finished modules are put trough tough tests to make sure they hold up. The results speak for themselves in my opinion. Sure failiures might be more common on modern cars just because they have more features. You can't have your ABS system throw an error if you don't have an ABS system. You can't have a power steering failure if your car doesn't have power steering. But even in these cases i think its rather rare for a box of electronics to die, often the errors they throw are related to a mechanical failure or a sensor/wiring failure.
So in this sense a electric car like a Tesla should be more reliable than a classical gasoline car, there are much fewer moving parts to fail.
Then again Apple will also sell you a new motherboard for your broken "does not turn on" MacBook while all you need is a guy like Louis Rossmann taking 10 minutes of his time to replace a display connector. All while these laptops are full of design flaws that make them unreliable in the long term. Yet fanboys still flock to them.
Hello NANDBlog and Berni,
just to enforce my former statement, regular Automotive electronics are designed and tested completely to assure they last the whole car life, w/o any excuses, exceptions or limitations on a certain use case.
The AEC-Q xxx standards make sure that this is secured on 'Component Level', i.e. to assure that the naked components are fit for automotive environmental conditions regarding temperature, humidity, ESD, EMC and so on.
Additionally there are defined requirements and tests on 'Board Level', i.e. to assure that the components can be safely assembled on the usual automotive grade PCBs AND that the connection techniques (leadfree soldering joints, glueing, bonding, etc.) are reliable over the whole cars life under automotive environmental conditions (e.g. vibration, temperature shock and PCB bending are added).
At last, there are defined requirements and tests on 'Application Level', i.e. to assure that the whole finished electronic device / product is reliable under automotive environmental conditions, (e.g. vibration, humidity and temperature tests of the
complete device), but also regarding drift and deterioration processes over the whole car life.
This latter aspect refers to the TESLA eMMC problem, which is definitely prohibited by any regular Automotive grade Tier 1, and not accepted at all by any regular Automotive grade OEM. Same would be the case for that middle display problem. The occurrence of this is problem (due to missing validation testing) is not acceptable at all, as well the customer claim handling by TESLA is unacceptable.
PS: For changes on Electronic Components, 'PCN', a description for these three cases A, B, C can be found in a German Automotive standard called DQM (Delta Qualification Matrix 4.1), published by the ZVEI:
https://www.zvei.org/en/subjects/mobility/product-process-change-notification-method-in-automotive-electronics/Further details for A level changes will be published elsewhere.
Frank