The Original i30 Owners Club

GOT PROBLEMS OR ISSUES? => DIESEL => Topic started by: rowanc on April 28, 2015, 03:41:34

Title: Wet road skid + ABS
Post by: rowanc on April 28, 2015, 03:41:34
Hi All,

Driving this morning, and someone pulls out of a side road right in front of me, giving me a serious wakeup, hit the brakes too hard for the wet road, and go into a slide for nearly a second before the ABS cuts in (long enough, that I'd also removed some pressure from the pedal to compensate). Luckily this was all enough this time.
I tested the brakes on a backroad just after, and it seems that the ABS cuts in after around a second of skidding, for about a second, but then lets go again for about a second. It's like the pulse rate is 1/sec (from about 45km/hr). I would have assumed that the rate should be much quicker than this, as I had long enough to remove pressure from the brakes myself before the ABS cut in.
Is it normal to be able to skid for that long before the ABS cuts in properly?

Any thoughts folks?
Title: Re: Wet road skid + ABS
Post by: Dazzler on April 28, 2015, 10:07:57
Doesn't seem right to me, but can't recall ever having to brake hard enough in any of our 3  x i30's to test it..  :undecided:
Title: Re: Wet road skid + ABS
Post by: constipated on April 28, 2015, 10:46:51
Agree, seems too slow.
Title: Re: Wet road skid + ABS
Post by: beerman on April 28, 2015, 11:49:51
Shouldn't skid at all.....There should be a thudding through the brake pad, and perhaps the slightest of chirps where the sensors compensate the pressure to ensure that you do not skid. You should not skid then recover.



Title: Re: Wet road skid + ABS
Post by: Johnno on April 28, 2015, 12:09:08
The 3rd video shows how quick it operates

:link: HYUNDAI Tuscani ABS, VDC TEST - YouTube (https://www.youtube.com/watch?v=QXbi16Ku0qY)

:link: EN | Mahindra XUV500 safe braking with Bosch antilock braking system (ABS) - YouTube (https://www.youtube.com/watch?v=brttLXw-lt4)

:link: How to Brake in an Emergency? ABS? (Anti-Lock Braking Systems) - YouTube (https://www.youtube.com/watch?v=wWbDEgxln2c)
Title: Re: Wet road skid + ABS
Post by: eye30 on April 28, 2015, 20:21:10
Doesn't seem right to me, but can't recall ever having to brake hard enough in any of our 3  x i30's to test it..  :undecided:

you must go VERY VERY slow Dazz
Title: Re: Wet road skid + ABS
Post by: Dazzler on April 28, 2015, 21:48:49
Doesn't seem right to me, but can't recall ever having to brake hard enough in any of our 3  x i30's to test it..  :undecided:

you must go VERY VERY slow Dazz

Sit on the speed limits (usually as per the GPS), but read the traffic flow very carefully, mainly for economy reasons.  :cool:
Title: Re: Wet road skid + ABS
Post by: Surferdude on April 29, 2015, 05:57:23
I've only ever activated the ABS once and it was due to a moment's distraction (mine). However, once the pedal started thumping I eased back on the pedal pressure and was able to brake normally.
Certainly didn't skid first.
Title: Re: Wet road skid + ABS
Post by: elantraelite on May 02, 2015, 00:01:27
Thats an interesting point you brought up. My 09 FD felt like it skidded before the ABS kicked in.

My 05 XD Elantra had a quick ABS system and it was only 3 channels! (2 to the front, one to the rear)
Title: Re: Wet road skid + ABS
Post by: beerman on May 02, 2015, 06:11:16
The whole point of ABS is to even things out.

As an example on a driving course we ABS braked on a road that was half wet and half dry. If the car had skidded for a second in this circumstance it would have caused the vehicle to become almost uncontrollable, as the tyres on the dry bit while the tyres on the wet  skidded...
Title: Re: Wet road skid + ABS
Post by: FatBoy on May 02, 2015, 06:34:14
I have used my ABS on my old FD.  It definitely didn't skid before it started working.  Unfortunately it didn't stop me hitting the wallaby.  The front number plate catches fur very well.  The rear right wheel has a lot of travel.  I wasn't speeding.
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