Brown trousers

adunis

I've just found an instance where one might want to to turn off the automatic front braking dodah.
Absolutely ice-rink road this morning a don't even think about the brakes scenario,all of a sudden the oncoming car went pirouetting across the road and back not content with the lucky miss the Ioniq decided to slam on the anchors when the other car appeared in front,que my own session of ballet dancing ,another lesson learned Evey day being a schoolday etc.
In other news remarkable how useful having an engine to listen to in ice rink weather was,not that I'm going back......

kaahooters

so the brakes worked as intended?

Lumen

I guess there are situations where a human driver may decide not to apply brakes despite an oncoming car, on the basis that there is more risk from having two cars skidding towards each other than one.

Whereas the computer decides to slam the anchors on and then deal with any loss of grip through ABS intervention.

So this is arguably an issue with the ABS system?

adunis

No issue with the ABS the "issue " was the car slamming the anchors on for the half second or so was enough to unsettle everything the road was a sheet of glass,either by dumb luck or supreme driving skills I prevailed (read managed to stay off the brakes and not over compensate when it did find scraps of grip).
Subtle the A.E.B. is not.....

biko

EV -> main forum

mickdw

kaahooters wrote: »

so the brakes worked as intended?

You miss the point.
The car has this brake function yet isnt intelligent to know when it might not be a great idea to slam on max brake force.

kirving

Lumen wrote: »

I guess there are situations where a human driver may decide not to apply brakes despite an oncoming car, on the basis that there is more risk from having two cars skidding towards each other than one.

Whereas the computer decides to slam the anchors on and then deal with any loss of grip through ABS intervention.

So this is arguably an issue with the ABS system?

ABS implies that the wheels have enough grip to lock though.

Part of the "problem" is that the AEB is designed to only work at the very last moment so that people don't rely on it, but in certain scenarios can cause a skid. I wouldn't be at all surprised if the user manual recommended for it to be stitched off in adverse conditions.

I would expect that under normal operation, under Active Cruise Control conditions, the braking system would take account of temperature and react less aggressively.

Finally, any advanced driver assistance systems that I've encountered to date (lane keeping aid, auto braking) will immediately be disabled and hand back control to the driver, if movement of the steering wheel or pedals is sensed.

Perhaps Hyundai is different, but this is Mercedes user manual on AEB.

http://www4.mercedes-benz.com/manual-cars/ba/cars/w212/en/manual_base.shtml wrote:

The braking action of PRE-SAFE® Brake is ended automatically if:

you manoeuvre to avoid the obstacle...

http://www4.mercedes-benz.com/manual-cars/ba/cars/w212/en/manual_base.shtml wrote:

In particular, the detection of obstacles can be impaired if there is:

dirt on the sensors or anything else covering the sensors

snow or heavy rain