3 ms·

So, what exactly stops the car when it gets too hot? Or when there's no oil? (except the eventual engine failure)

tremon 4y ago
The driver.
hulitu 4y ago
The car is _designed_ so that it doesn't get to hot. If, despite this, it gets hot it will be stopped. Now, those are the requirements and some suppliers might disregard them with the prize of their liability.
- ajsnigrutin 4y ago
  The car has mechanisms, some of them implemented in software (eg turning on cooling fans) to not get hot. So does a switch. Someone installing gentoo on a cars ECU, and not implementing the feature to turn the fans on will easily overheat and destroy the car... the same is happening here with the lcd controller (and yes, the switch is designed so that the user can never go above some brightness level... unless the user hacks the switch and installs some random linux on it).
xani_ 4y ago
The car won't shut off because that would be a dangerous thing to do in traffic. The car will alert the driver than something is wrong and should stop as soon as it is safe. Because stopping engine abruptly in middle of highway could be very dangerous. A lot of cars also have so-called "limp mode" where some failures cause car to limit engine power and other stuff, basically to get to the next point the car can be stopped and towed to shop
- ajsnigrutin 4y ago
  So you're saying a car has software features in the ECU preventing the user from destroying a car. So does the switch in its software (OS). We're talking about someone taking a device, hacking it, installing some random software (whatever hacked version of linux runs on switch), and that software does not have the feature of limiting the max brightness at an accaptable (non-damaging level). So the same as if you took an ecu of a car, put linux on it, didn't implement the limp mode feature and then blame the hardware for overheating.

The driver.

The car is _designed_ so that it doesn't get to hot. If, despite this, it gets hot it will be stopped. Now, those are the requirements and some suppliers might disregard them with the prize of their liability.

ajsnigrutin 4y ago
The car has mechanisms, some of them implemented in software (eg turning on cooling fans) to not get hot. So does a switch. Someone installing gentoo on a cars ECU, and not implementing the feature to turn the fans on will easily overheat and destroy the car... the same is happening here with the lcd controller (and yes, the switch is designed so that the user can never go above some brightness level... unless the user hacks the switch and installs some random linux on it).

xani_ 4y ago

The car won't shut off because that would be a dangerous thing to do in traffic. The car will alert the driver than something is wrong and should stop as soon as it is safe. Because stopping engine abruptly in middle of highway could be very dangerous. A lot of cars also have so-called "limp mode" where some failures cause car to limit engine power and other stuff, basically to get to the next point the car can be stopped and towed to shop

ajsnigrutin 4y ago
So you're saying a car has software features in the ECU preventing the user from destroying a car. So does the switch in its software (OS). We're talking about someone taking a device, hacking it, installing some random software (whatever hacked version of linux runs on switch), and that software does not have the feature of limiting the max brightness at an accaptable (non-damaging level). So the same as if you took an ecu of a car, put linux on it, didn't implement the limp mode feature and then blame the hardware for overheating.