ABS vs. Threshold Braking,Which will stop faster.......
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From: Plano, TX, usa
Re: ABS vs. Threshold Braking,Which will stop faster....... (Wong Wonder)
Wouldnt the threshold be the point of braking right before you lose traction? I think it comes down to how well you know your car's limits vs how good the abs actually is.
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From: Crofton, MD
Re: ABS vs. Threshold Braking,Which will stop faster....... (tilt)
threshold brakeing will stop faster under all conditions. the trick is to be able to do it under all conditions. it's difficult and requires a good bit of practice on dry pavement. on snow it is just about imposible. especially when there is an imovable object approaching rapidly and your instinct is to just mash the brake pedal into the floorboards.
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
Joined: Oct 2002
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From: So Cal
Re: ABS vs. Threshold Braking,Which will stop faster....... (jweller)
threshold brakeing will stop faster under all conditions. the trick is to be able to do it under all conditions. it's difficult and requires a good bit of practice on dry pavement. on snow it is just about imposible. especially when there is an imovable object approaching rapidly and your instinct is to just mash the brake pedal into the floorboards.
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
Put simply, maximizing braking performance is best left to the computers. Just let the driver tell it the intended action and leave the millisecond decisions to the ABS brain.
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From: Norwalk, CT
Re: ABS vs. Threshold Braking,Which will stop faster....... (7PSI CRX)
ABS can also modulate all 4 wheels independently.
But I do agree that anyone who thinks they can outperform modern ABS in anything less than perfect conditions is kidding themselves.
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From: Calgary, Alberta, Canada
Re: ABS vs. Threshold Braking,Which will stop faster....... (Wong Wonder)
I don't really know anything about ABS so maybe I'm not qualified to say anything but to my mind, there has GOT to be a difference between the ABS system that comes standard on a Cavalier and the ABS systems available on Porsches, BMWs and so on.
From what I've read in magazines, threshold braking is better on dry pavement and maybe in a couple of other really specific instances but in all other cases, ABS is better.
From what I've read in magazines, threshold braking is better on dry pavement and maybe in a couple of other really specific instances but in all other cases, ABS is better.
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From: Pasadena, CA, USA
Re: ABS vs. Threshold Braking,Which will stop faster....... (Daemione)
But I do agree that anyone who thinks they can outperform modern ABS in anything less than perfect conditions is kidding themselves.
http://www-nrd.nhtsa.dot.gov/vrtc/ca...T4FinalRpt.pdf
For fun (scary) reading, check out this report on how well drivers understand ABS:
http://www-nrd.nhtsa.dot.gov/vrtc/ca...y_rptfinal.pdf
My favorite is question 19 on page 34. When asked how to stop in the shortest distance in an ABS-equipped car, almost twice as many people chose "apply light pedal pressure" as chose "push as hard as possible."
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From: Lower Hudson Valley, NY
Re: ABS vs. Threshold Braking,Which will stop faster....... (mph6563)
My favorite is question 19 on page 34. When asked how to stop in the shortest distance in an ABS-equipped car, almost twice as many people chose "apply light pedal pressure" as chose "push as hard as possible."
Just by reading the manual that comes with the car, anyone would realize that ALBS only "modulates" brake pressure, it cannot increase it.
Only your foot can do that.
For the record, for everyday driving in all weather, I
ALBS
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From: Pasadena, CA, USA
Re: ABS vs. Threshold Braking,Which will stop faster....... (7PSI CRX)
Just by reading the manual that comes with the car, anyone would realize that ALBS only "modulates" brake pressure, it cannot increase it.
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From: WA
Re: ABS vs. Threshold Braking,Which will stop faster....... (texan)
threshold brakeing will stop faster under all conditions. the trick is to be able to do it under all conditions. it's difficult and requires a good bit of practice on dry pavement. on snow it is just about imposible. especially when there is an imovable object approaching rapidly and your instinct is to just mash the brake pedal into the floorboards.
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
Modern ABS systems are significantly more effective at stopping a car than threshold braking. A person cannot react several times a second to changing traction conditions and instantaneous wheel speeds. Modern ABS systems can. None of the good ones EVER lock the wheels, they simply modulate line pressure to keep wheel RPM within a set minimum limit relative to vehicle speed. A wheel cannot stop and start again several times a second, it simply slows and regains a small percentage of target RPM. And a 4 channel system does this at each corner of the car, but I only see one brake pedal for the driver.
Put simply, maximizing braking performance is best left to the computers. Just let the driver tell it the intended action and leave the millisecond decisions to the ABS brain.
ABS locks and unlocks the wheel thousands of times a second. even though it is what seems like an instant, any time that the wheel is unlocked, is time spent NOT brakeing. threshold braking on the other hand means that you are on the brakes as hard as you can be without locking them up, but never off of them completely
[Modified by jweller, 12:37 AM 2/19/2003]
Modern ABS systems are significantly more effective at stopping a car than threshold braking. A person cannot react several times a second to changing traction conditions and instantaneous wheel speeds. Modern ABS systems can. None of the good ones EVER lock the wheels, they simply modulate line pressure to keep wheel RPM within a set minimum limit relative to vehicle speed. A wheel cannot stop and start again several times a second, it simply slows and regains a small percentage of target RPM. And a 4 channel system does this at each corner of the car, but I only see one brake pedal for the driver.
Put simply, maximizing braking performance is best left to the computers. Just let the driver tell it the intended action and leave the millisecond decisions to the ABS brain.
Joined: Sep 2002
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From: Huntingdon, pa, US
Re: ABS vs. Threshold Braking,Which will stop faster....... (Wong Wonder)
I agree that ABS is GREAT at speed, it has saved me more times than i care to mention, BUT i just wish that an auto maker would produce an ABS system that was deactivated below 12 MPH or so. At slow speeds, in snow/ice when the car could safely slide to a stop in a few feet the ABS just WILL NOT let the car come to a stop. 
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From: Washington, DC, US
Re: ABS vs. Threshold Braking,Which will stop faster....... (texan)
threshold brakeing will stop faster under all conditions. ---
Put simply, maximizing braking performance is best left to the computers. Just let the driver tell it the intended action and leave the millisecond decisions to the ABS brain.
Put simply, maximizing braking performance is best left to the computers. Just let the driver tell it the intended action and leave the millisecond decisions to the ABS brain.
That is why I have spend a LOT of time adapting a 98 Type R ABS system to my EG. Now if I could just get it to stop throwing ABS codes
I got a 95 EX system to work though so i'm sure I'll figure it out.
P.S. The 98 and newer Type R ABS system is 4 wheel independent and is designed with racing in mind. It also adds less than 10 pounds to the car. Totally worth the hassle IMHO
Mike
[Modified by 92sleepR, 6:03 PM 2/20/2003]
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From: I sell JDM engines too, CA, US
Re: ABS vs. Threshold Braking,Which will stop faster....... (Wong Wonder)
Out on the street (hope you're obeying all laws!) and in all-season conditions the factory has done quite a good job with ABS. On the Race tracks you'll find a lot less ABS systems. Racers like to do the "BRAKE-THINKING" for themselves.
L8
Chris
L8
Chris
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From: Morgantown, wv, usa
Re: ABS vs. Threshold Braking,Which will stop faster....... (Chris90STD)
U can still threshold brake with an ABS car. The ABS will not kick in untill you go over the threshold and the car starts to slide, so if your really good at threshold braking ABS will not kick in.
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