Cars with emergency city braking

DannyW · 1 Aug 2016 at 20:37

Hi guys

I've driven a few cars with the emergency city braking I really liked it, in town I just drove around whilst on Facebook and eBay ect without really paying any attention, its great and a must on my next car!

Joking aside, how does the system compensate for say.. wet or icy roads, or in 5 years time when *****'s fit Chinese tyres and eBay brakes? Every time I have seen the system working it doesn't stop while littererly the last second leaving inches to spare

UnworthyBean · 1 Aug 2016 at 20:46

I don't think they do compensate? They just know you're travelling too fast and you're going to hit that car.

Maybe in the future the systems will know what type of road surface you're on.

Richie · 1 Aug 2016 at 20:52

The system just uses your speed and distance to the car in front and brakes at the latest opportunity... Else people would complain it kicks in too much.

adolf hamster · 1 Aug 2016 at 20:52

They probably dont, maybe something linked to the temperature sensor for road conditions.

I imagine it wont work properly with modified brakes, or an old motor well out of warrenty.

Its a big issue with cars, mechanically they can be made to last as long as they can, its electrically will be the issue

Janesy B · 1 Aug 2016 at 20:53

It would just take longer to stop.

Demon · 1 Aug 2016 at 21:08

???? It's only there to minimise the impact in an emergency, whilst it aims to stop before coming into contact it's only looking at distance and closing speed to an object, so if conditions or state of car is poor, it may still crash.

My cx5 had scbs, which allegedly stopped James may killing Clarkson, but I never had the balls to test if it really worked on mine..

Akagi · 1 Aug 2016 at 21:15

Reminds me of the video where Ford were showcasing their emergency braking system and the car smashed into something at full pelt because they forgot to turn it on.

paradigm · 1 Aug 2016 at 21:18

Acme said:
Reminds me of the video where Ford were showcasing their emergency braking system and the car smashed into something at full pelt because they forgot to turn it on.

Wasn't that Volvo?

(Yes I'm aware of the Volvo/Ford link)

Akagi · 1 Aug 2016 at 21:20

Might have been.

acemastr · 1 Aug 2016 at 21:22

How much trust do you need to put in it to do this.

My dad had a C300 from Mercedes as a loaner and it had it, his work set up bubble wrap in a big wall and it crashed right through it lol

Lashout_UK · 1 Aug 2016 at 21:36

My Mazda 6 long-term test car did it in a gravel car park going 15mph - much like Clarkson's CX-5 (except mine did it first, haha). Obviously thought it was going to hit the hedge; I didn't mind, but the people outside the pub I showered with gravel...

Jaguar's system can be way too touchy around town. Might have dialled it down a bit now, though.

skaif · 1 Aug 2016 at 21:37

Yeah my Golf has this.....I can feel it vibrating the brake pedal sometimes and once felt it kick in but I would NEVER trust it! I do want to get an old mattress to drive into or something similar just to see if it would A) detect it and B) actually stop!

Lashout_UK · 1 Aug 2016 at 21:38

If it's any consolation, I've tested it on loads of soft things and it's worked quite well up to a point. After that, it's just bleeding off as much speed as possible to minimise the damage. The more that have it the merrier, given the standards on the road these days...

Sirrel Squirrel · 1 Aug 2016 at 21:40

My new Navara has it but I'm not convinced it would stop me in time although it has beeped at me a few times.

muon · 1 Aug 2016 at 21:41

It doesn't guarantee avoidance of collision.

Nor do a lot of systems work at high speeds.

However, it is better than nothing.

Firestar_3x · 1 Aug 2016 at 22:37

Can be annoying, the CC tried to stop on an NSL road whilst going round a bend because it though i was going to hit a stationary set of cars waiting to turn right.

Akagi · 1 Aug 2016 at 23:13

If it causes an accident in a situation like the above (say the car slams on the brakes automatically and the person behind hits you) are the manufacturer in any way liable?

rG-tom · 1 Aug 2016 at 23:22

Acme said:
If it causes an accident in a situation like the above (say the car slams on the brakes automatically and the person behind hits you) are the manufacturer in any way liable?

The person behind would still be liable...

mattyg · 1 Aug 2016 at 23:58

acemastr said:
How much trust do you need to put in it to do this.

The same amount of trust you do in your airbags working. Its a secondary safety system. It helps when you **** up. But it wont stop you from ******* up.

Scania · 2 Aug 2016 at 06:16

Got this on some of the trucks at work, experienced it once so far when a transit shot in front of me on the m25 as it made a late dash for his exit, scared the **** out of me when it activated but it worked, without it I'm sure I'd have hit him.