|
|
|
|
|
|
by janoc
944 days ago
|
|
|
It is a matter of priorities. If that was a high priced Bentley where the customer doesn't expect anything but the best for their money, sure, go ahead. But for a Model 3 where you need to carefully manage costs or you will either price yourself out of the market (and Tesla is already at the high end of it!) or go bankrupt I think you will have much bigger fish to fry than dealing with such noises. You also obviously don't understand the engineering decisions - e.g. having the high voltage always on is not possible/allowed. It is a legal requirement because it must be possible to disable the high voltage circuit when doing maintenance on the car - or in the case of an accident. And it needs to switch off the moment the airbags activate, it is not only there for the firemen to turn off. Also having the high voltage circuit off when the car is parked reduces the risks of fire should anything happen (malfunction, another vehicle crashes into a parked Tesla, etc.) Manual lever is of no use in such situations. Pyrofuses Tesla already has. |
|
|
I am aware of no law requiring that...
Plenty of other high voltage things are always on - for example the outlets in your living room are always live even if you aren't using the room.
The electrical danger of your house would be reduced by turning them off when you weren't in the room, but we decided it wasn't worth the complexity/cost to do so for the tiny benefit.
Electrical contractors in cars are in the same position IMO. It should be energised once in the factory, and then remain energised for the life of the car. Car service garages can have tools to de-energise and re-energise the HV system if necessary - rather like such tools exist to gas and degas aircon systems.