Anti Collision Paralysis

[bedsev]

After 1065 miles I had my first challege with anti collision. At the time I thought it got it wrong, but after reviewing the dashcam is probably was the right call, but the issue was that once it had gone off the car would not engage drive again. No throttle, into park and back to drive nothing. Had to put hazards on for waiting cars behind until I could get it going again, seemed like an age at the time but in fact it was just a few seconds in reality. The lesson here is if it goes off, don't panic, hit the hazards and it will get going again.

LANGUAGE WARNING!

 

[Bam Bam]

After 1065 miles I had my first challege with anti collision. At the time I thought it got it wrong, but after reviewing the dashcam is probably was the right call, but the issue was that once it had gone off the car would not engage drive again. No throttle, into park and back to drive nothing. Had to put hazards on for waiting cars behind until I could get it going again, seemed like an age at the time but in fact it was just a few seconds in reality. The lesson here is if it goes off, don't panic, hit the hazards and it will get going again.

Yeah, it really wasn't long was it.

Like when you're learning to drive and stall on the main road - feels like ages because people are waiting behind, but in reality it isn't long at all.

 

[Rolfe]

The only time mine ever went off (again a good call in retrospect - how could the car know the pedestrian who just walked out from between parked cars wasn't going to cross right in front of me?) it didn't seem that long, but it was probably about the same time as in your video.

I've stalled enough cars with people waiting behind me just to think, OK, you can just wait till I'm ready to go, deal with it!

 

[bedsev]

Just found this in the manual, I guess me trying to get it going again was futile, it will give control back after a period of time anyway

 

[Rolfe]

That was the impression I got. Just wait a few seconds and drive on. I watched your video without sound, and nothing at all untoward appeared to happen! The length of time the car was stopped for was negligible.

We did have a member, some time last year, who had a very scary experience with this. The car did a full emergency stop in the middle of a level crossing. It might have been triggered by the rails or something, although this is the only example of this happening that I ever heard of. Understandably all concerned went into flat panic mode, and the member's wife, who I think was driving the car at the time, refused to get behind the wheel again. By all accounts the time stopped was no longer than it was for you, but if you're sitting in the middle of a railway track every second seems like an hour. They sold the car at quite a big loss, because the wife simply wouldn't drive it because of the scare.

 

[MG4JP]

So, we don't need to do anything? No procedure, just wait?

I had this happen to me and I didn't like it one bit. It was a situation much like the one in this video, but all drivers were fully aware of what was happening. It's just that, when driving around an European city, some places are tight and we do have to drive close to others.

Hopefully next time - without the element of surprise - I'll handle things better.

 

[Rolfe]

I think so. We're used to a car stalling, and think we have to do something to get it to go again. Treat this like a stall, but the solution is simply to wait for a few seconds while the car gets its brain back together again on its own.

 

[AdyG]

Happened to me a couple of times while turning right on to a side road, i've now adjusted to let car pass further before turning & haven't had an issue since.

 

[JonnyG]

In circumstances like this it may possible to override it with a bit of anticipation :

From the manual just after the above section :-

"Note: In some cases, the driver may not have
anticipated any braking intervention and does
not want to apply the brakes whilst the forward
collision system is braking heavily, the driver can
temporarily cancel this operation by heavily pressing
the accelerator pedal after ensuring that it is safe to
do so."

I find sharp acceleration and a more pronounced pull on the steering wheel help avoid the automatic stop but not in every situation and obviously only when safe to do so.

 

[Ian Key]

Happened to me a couple of times while turning right on to a side road, i've now adjusted to let car pass further before turning & haven't had an issue since.

I've also found slightly pressing the brake just before you go for the appearing gap stops the car suddenly braking.

 

[Bricktop X PWR]

As per @JonnyG and @Ian Key,
In normal driving and after a year of ownership you can feel when the car is about to do something you don't want it to do.
Just one example is my car likes to slow when approaching parked vehicles on the left side of the road.

Not every situation, but sometimes you feel it start to back off because it thinks a collision is imminent. (ACC on)
An extra bit of gentle pressure on the accelerator mitigates this.

It's almost as if the car is saying "Oh thank goodness, my driver is aware of the situation" and you carry on regardless.

It's all second nature to me now, but it is unsettling and I did have a couple of "Bang On The Bloody Brakes" incidents in my first couple of weeks.

Oh and @bedsev in your example up above I can't hear an indicator?
I find that an early indication tells the car you've seen the hazard and are in control of the situation.

(Apologies if it is on. I'm a bit mutton)

 

[Rolfe]

That thing about slowing when you approach parked cars when ACC is on. If you look at the driver's screen you'll see the parked car appearing as if it's in your lane, right in front of you, rather than the lane to your left. But if there are parked cars on both sides of the road it seems to be able to figure this out and see the lane between them. Also if you are following another car it will see that the car it's following is going through, and the parked car will appear where it should be, in the lane to your left.

I have no idea why it does this.

 

[Bricktop X PWR]

That thing about slowing when you approach parked cars when ACC is on. If you look at the driver's screen you'll see the parked car appearing as if it's in your lane, right in front of you, rather than the lane to your left. But if there are parked cars on both sides of the road it seems to be able to figure this out and see the lane between them. Also if you are following another car it will see that the car it's following is going through, and the parked car will appear where it should be, in the lane to your left.

I have no idea why it does this.

Because despite how incredibly clever it all is, (and it is undoubtedly clever) it's still not as good as the squidgy sponge between our ears! ??

 

[Rolfe]

It's a lump of fat, basically!

 

[bedsev]

Just one example is my car likes to slow when approaching parked vehicles on the left side of the road.

Not every situation, but sometimes you feel it start to back off because it thinks a collision is imminent. (ACC on)
An extra bit of gentle pressure on the accelerator mitigates this.

Yeah, I've learnt this one now and do the same

Oh and @bedsev in your example up above I can't hear an indicator?
I find that an early indication tells the car you've seen the hazard and are in control of the situation.

Yeah the indicator was on which is why it took me by surprise more, I thought I'd killed off LKA with the indicator, only to be hit with collision assist!

 

[Bricktop X PWR]

Yeah, I've learnt this one now and do the same


Yeah the indicator was on which is why it took me by surprise more, I thought I'd killed off LKA with the indicator, only to be hit with collision assist!

You would have thought all the systems would confer?

Oh wait a minute...........?

Who am I trying to kid!