On Wed, 12 Jan 2022 19:52:36 -0000, NY <m...@privacy.invalid> wrote:
> "Commander Kinsey" <C...@nospam.com
> wrote in message
>> On Wed, 12 Jan 2022 18:15:21 -0000, Fredxx <fre...@nospam.invalid> wrote:
>>> On 12/01/2022 17:37, Commander Kinsey wrote:
>>>> Why don't cars switch themselves off if they run out of oil or coolant?
>>>> It is funny watching them try to keep going though.
>>>> A computer will shut down or throttle if the CPU overheats, yet car
>>>> manufacturers don't have a clue.
>>> If you got a decent car you would know that the ECU will indeed
>>> initially go into limp mode and lots of flashing lights warning you of
>>> impending damage.
>> You mean a really modern car. This tech should have been in cars 50 years
>> ago. If it can put up a warning light, it can shut itself off.
>>> The manufacturers daren't cut the engine completely because of potential
>>> safety issues.
>> Yes, because it's much safer to let the engine seize so you skid off the
>> road into oncoming traffic. For fuck's sake! A loss of power is not
>> dangerous, it's the safest thing to do!
> A loss of power (or a complete engine-off) *is* dangerous if it occurs at
> the wrong moment.
> I had a very narrow escape. My car had been driving perfectly with no sign
> from warning lights or the ECU messages on the display or any change in how
> the car "felt". I came to pull out into traffic from a side road, having
> left a good long gap, and the engine lost power about 2 seconds after I had
> started to accelerate from rest up to the speed of the traffic I was
> Luckily I was able to hit the hazard switch very quickly to warn the HGV
> behind me that was rapidly closing on me, and pull over onto the verge. If
> the car had behaved as it normally did, I would have been going beyond the
> speed of the lorry. There was a bleep at the same time as the car lost
> power, and the ECU display changed - but I had my mind on other things ;-)
And if you had an overheating engine, with no cutout, then the engine seized as you were pulling out, the same would have happened anyway.
I had the same thing happen to me because the battery died (severely), shorting a lot of stuff out. But it was a very quiet road, so I pushed it back to the sideroad, then when someone appeared, he helped me push it to my destination, which was 100 yards away.
> It turned out that the car has a "depollution pouch" (maybe something like
> AdBlue) which treats the exhaust gases to reduce the amount of NOx. When I
> got the car to "limp" to my local garage, they said that this pouch had
> burst. The ECU message said "depollution failure". It was a fairly
> straightforward (if not cheap) job for the garage to replace the pouch, but
> the car couldn't have picked a worse possible time to fail.
Health and softy shooting itself in the foot.