anti collision emergency braking

[Bluesparky]

So I was driving up a steep hill, approaching road works where the road was down to a single lane controlled by temporary traffic lights.
Foot off the gas so was slowing quite quickly, the car in front was turning left just before the roadworks, the traffic lights turned green so no oncoming traffic, as I put my foot down to go around the car turning left and enter the road works, the car decided it was going to be a collision and threw on the anchors,
now I'm all up for these safety features, but the gap between me and the car in front was still large enough for me to safely go around and our speeds were well under 30.
The emergency braking caught me completely off guard as my response to the upcoming situation was completely different to the cars !!!!
Not so sure these safety features are such a good thing as if me having to swerve out the way or increase my speed was the only way to avoid an impact, the car would possibly not allow you to do that , just a thought .
Any other experiences similar ?

 

[Tim Green]

There have been quite a few notified on this forum. I have had some occasions when the car started to brake on its own but then released the brakes, usually when getting close to a car turning left or right in front. There are always going to be limitations when the radar is just looking for something in the way, and has even less intelligence than me!

 

[Gadget Geek]

There have been quite a few notified on this forum. I have had some occasions when the car started to brake on its own but then released the brakes, usually when getting close to a car turning left or right in front. There are always going to be limitations when the radar is just looking for something in the way, and has even less intelligence than me!

It's not just the radar. If you look at the dash, you will see graphics of not only cars, but vans and motorcycles in front of you, so it's using the cameras as well to apply the brakes and scare the s**t out of you. When you've used it for a while, you can predict when it's going to get it wrong and be ready for it. I normally just get the rapid beeping to tell me it's seen a parked car and thinks I'm going to drive into it. I liken it to a skittish horse who doesn't like the traffic.

 

[Alb]

Every time I hear one of these stories it makes me thankful I have a Mk1 MG5. Someone made a very astute observation in another thread that these systems should assist not insist.

 

[Matt M]

Think it will have happened to every driver of most modern vehicles in the circumstances you describe but MG seems to be horridly sensitive. Puts the fear of a higher power up you ? You can lower the sensitivity of the system in settings as it defaults too high. But it resets with every on/off of the ignition fyi

 

[Kithmo]

It's trying to teach you to drive slower.

 

[pollenface]

The AEB worked perfectly the day my wife drove out from the dealer the day we bought it. A car cut infront of her (almost causing a collision) and the AEB saved the day in the first 30 seconds of driving it.

 

[Robf]

Out of interest has anyone had an accident because of AEB?

 

[Gadget Geek]

When I had an Ioniq 28kWh, it did what I thought was a phantom brake on a dark, unlit road, until I then saw a cyclist on a black bike, wearing black clothing, and no lights. It's fair to say the AEB saved him from serious injury.

 

[Kithmo]

Out of interest has anyone had an accident because of AEB?

I doubt it.
Even if they did, it would be a no fault accident if someone ran into the back of them.

 

[DB Go Rex]

So I was driving up a steep hill, approaching road works where the road was down to a single lane controlled by temporary traffic lights.
Foot off the gas so was slowing quite quickly, the car in front was turning left just before the roadworks, the traffic lights turned green so no oncoming traffic, as I put my foot down to go around the car turning left and enter the road works, the car decided it was going to be a collision and threw on the anchors,
now I'm all up for these safety features, but the gap between me and the car in front was still large enough for me to safely go around and our speeds were well under 30.
The emergency braking caught me completely off guard as my response to the upcoming situation was completely different to the cars !!!!
Not so sure these safety features are such a good thing as if me having to swerve out the way or increase my speed was the only way to avoid an impact, the car would possibly not allow you to do that , just a thought .
Any other experiences similar ?

Yep happens all the time.

On the positive side both the Hyundai Ioniq and the Golf Mk7 I had previously, had similar sensitivity in their collision avoidance systems.

It's just a super hard problem to work out if a car is turning or moving slowly and not moving out of the way.

Requires some sort of predictive analysis to the level at which only Tesla are getting close to in their "self driving" systems.

 

[remarkable1967]

So I was driving up a steep hill, approaching road works where the road was down to a single lane controlled by temporary traffic lights.
Foot off the gas so was slowing quite quickly, the car in front was turning left just before the roadworks, the traffic lights turned green so no oncoming traffic, as I put my foot down to go around the car turning left and enter the road works, the car decided it was going to be a collision and threw on the anchors,
now I'm all up for these safety features, but the gap between me and the car in front was still large enough for me to safely go around and our speeds were well under 30.
The emergency braking caught me completely off guard as my response to the upcoming situation was completely different to the cars !!!!
Not so sure these safety features are such a good thing as if me having to swerve out the way or increase my speed was the only way to avoid an impact, the car would possibly not allow you to do that , just a thought .
Any other experiences similar ?

I turn pretty much all the "safety"features off or to alert only, every time I get in the car. Also if I could just have normal cruise control rather than adaptive that would also be fine with me. Not a moan as I really love the car but it's just trying to be too clever and not particularly making a good job of it.

 

[Deleted member 2158]

I've had this happen a couple of times.
Apart from making me curse it scares following drivers when doing an unnecessary emergency break.
All designed to make us leave greater distances between cars I suppose and it only needs to be right once to make it worthwhile.
Are there insurance implications of you turn off these systems - my insurance was cheaper because the car does have them.

 

[DB Go Rex]

Are there insurance implications of you turn off these systems - my insurance was cheaper because the car does have them.

I think you answered your own question ?

 

[remarkable1967]

I've had this happen a couple of times.
Apart from making me curse it scares following drivers when doing an unnecessary emergency break.
All designed to make us leave greater distances between cars I suppose and it only needs to be right once to make it worthwhile.
Are there insurance implications of you turn off these systems - my insurance was cheaper because the car does have them.

There would be no insurance implications as insurance is based on the driver always being in control and not the car. I did discuss this with a friend who runs her own NFU insurance agency. They are just driver aids.

 

[ShirLow]

Well it saved me a prang recently when there was gravel and mud under some snow on a country lane and an idiot thinking it was fine to race down because he didn’t think anyone would be out in the snow’ ?

 

[Nicko]

Just think when it works, when it needs to a live or the car could be saved?

 

[MikeN]

So I was driving up a steep hill, approaching road works where the road was down to a single lane controlled by temporary traffic lights.
Foot off the gas so was slowing quite quickly, the car in front was turning left just before the roadworks, the traffic lights turned green so no oncoming traffic, as I put my foot down to go around the car turning left and enter the road works, the car decided it was going to be a collision and threw on the anchors,
now I'm all up for these safety features, but the gap between me and the car in front was still large enough for me to safely go around and our speeds were well under 30.
The emergency braking caught me completely off guard as my response to the upcoming situation was completely different to the cars !!!!
Not so sure these safety features are such a good thing as if me having to swerve out the way or increase my speed was the only way to avoid an impact, the car would possibly not allow you to do that , just a thought .
Any other experiences similar ?

Yes, particularly annoying when passing parked cars and going round gradual curves. It only happens when cruise control is on, which I liked to do with my old Mokka to assist speed limit control.
That leaves your cruise control only suitable for motorways. Does anyone know if the adaptive can be switched off, just leaving basic cruise control?

 

[DB Go Rex]

Yes, particularly annoying when passing parked cars and going round gradual curves. It only happens when cruise control is on, which I liked to do with my old Mokka to assist speed limit control.
That leaves your cruise control only suitable for motorways. Does anyone know if the adaptive can be switched off, just leaving basic cruise control?

I think you'll find that it would still do it with just adaptive cruise. This behaviour it part of the collision avoidance system.

Used to do the same on my Golf VII that only had adaptive cruise + collision avoidance.

It's just a limitation of most car manufacturers current algorithms. As mentioned earlier, only Tesla are doing the sort of predictive behaviour analysis that could cope with this sort of ambiguity.

 

[Vince31]

Auto Emergency Braking works with ACC on or off. On the times it's happened to me, when I've analysed the situation then it's been me that was wrong each time. As a human we make assumptions, like assuming a car is turning left at the next junction because their indicator is flashing. But what would happen if that same car slammed on their brakes because something was blocking their exit from our path like an unseen child? In that situation our subconscious assumption that the road would be clear by the time we got there would be wrong. It may be annoying that it's pointing out bad habits, but it's actually safer than a human driver 99% of the time.