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Since: Apr 01, 2007 Posts: 130
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(Msg. 31) Posted: Thu Jan 31, 2008 3:47 am
Post subject: Re: ABS pedal feel? [Login to view extended thread Info.] Archived from groups: alt>autos>subaru (more info?)
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On 19 Jan, 09:27, Uncle Ben <b....RemoveThis@greenba.com> wrote:
> On Jan 19, 6:08 am, Uncle Ben <b....RemoveThis@greenba.com> wrote:
>
> > On Jan 18, 6:54 pm, "Bonehenge (B A R R Y)"<DwightSchr....RemoveThis@DunderMifflin.com> wrote:
>
> > ....
>
> > > The goal of ABS is not to stop the car in less distance, but to allow
> > > control as it stops.
>
> > > Once a wheel locks, it has little traction. An anti-lockbrakeallows
> > > you to steer while you stop, but may take more distance to stop you.
>
> > I won't be dogmatic about it, but I don't understand the explanation.
> > How can stopping distance be shorter with less traction?
>
> > Ben
>
> In further reading on the subject I found one case in which ABS takes
> more distance: braking on soft surfaces. Locked wheels push the soft
> material ahead forming a slight barrier. Otherwise, I believe that ABS
> always stops you shorter.
>
> Ben
I don't know how the Sube ABS is going to work in all situations, but
what I have read is that ABS can be fooled, or not do what you think
it would or should. Now it might be in odd situations, like braking
going over a bump, but I have read many say that it does things you
wouldn't want, and Extend braking distance, even on ice, and That's
where I Thought I would want it. Maybe in an ideal situation For It,
it is better, but my instincts tell me I Don't want it, or to be able
to switch it on or off, and if I had a problem where I would have been
better off without it, I would be pissed I didn't do what I'd planned
to. I sure don't feel that confident in it.
VF >> Stay informed about: ABS pedal feel? |
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Since: Apr 01, 2007 Posts: 130
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(Msg. 32) Posted: Thu Jan 31, 2008 4:15 am
Post subject: Re: ABS pedal feel? [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)
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On 19 Jan, 17:57, "Blair Baucom" <jbbau... RemoveThis @hotmail.com> wrote:
> Glad to see someone who has actually considered the facts here besides
> myself. There have been many tests done, many posted on the internet about
> stopping distances. I read one of the first, many years ago when BMW
> introduced ABS on cars where a magazine tested the same car with and without
> ABS. All you have to do is look for this information. Lots of tests also
> with the few motorcycles that offer ABS. Look hard enough, and you can read
> about aircraft ABS where it all started.
>
> Measuring stopping distance is not that hard on a given surface.
>
> In the case of snow, dirt, gravel, where all four wheels are on these
> surfaces, ABS can make stopping distances longer. Where I have always liked
> ABS is on mixed surfaces where maybe one or two wheels have good traction,
> and the ABS system can respond only to the wheels that have lost traction.
> Unless you can use fourbrakepedals at the same time, this will be hard for
> any driver to ever achieve.
>
> I am on my 5th ABS equipped vehicle, and the next one will also have ABS.
>
> Blair
>
> "Uncle Ben" <b... RemoveThis @greenba.com> wrote in message
>
> news:3208957f-4138-4518-a5d7-86c7915ce5e0@u10g2000prn.googlegroups.com...
> On Jan 19, 6:08 am, Uncle Ben <b... RemoveThis @greenba.com> wrote:
>
> > On Jan 18, 6:54 pm, "Bonehenge (B A R R
> > Y)"<DwightSchr... RemoveThis @DunderMifflin.com> wrote:
>
> > ....
>
> > > The goal of ABS is not to stop the car in less distance, but to allow
> > > control as it stops.
>
> > > Once a wheel locks, it has little traction. An anti-lockbrakeallows
> > > you to steer while you stop, but may take more distance to stop you.
>
> > I won't be dogmatic about it, but I don't understand the explanation.
> > How can stopping distance be shorter with less traction?
>
> > Ben
>
> In further reading on the subject I found one case in which ABS takes
> more distance: braking on soft surfaces. Locked wheels push the soft
> material ahead forming a slight barrier. Otherwise, I believe that ABS
> always stops you shorter.
>
> Ben
Blair,
Have you had situations where you feel the ABS helped you avoid an
accident?
I read that the Ins Institute claims, 50% more likely to roll over,
Because of the
ability to steer when braking. Now, having Never hit anything only
driving Non ABS cars,
I look at the roll over danger more of a danger than steering being an
advantage, and
where I usually drive, there is No place to steer to anyway, and not
hit something, so I'd
want the shortest stopping distance, and I adjust to conditions of
traffic and weather,
which is probably why I haven't hit anything in 45yrs.
I got into an argument with a friend when complaining about how torn
up bumpers get
here in the city, by parallel parkers. The paint was rubber off on the
corner of his bumper
so I made a comment. He Must Hit cars when he pulls out, because he
got Very irate
and told me you Have to hit a car pulling out. I got irate back at him
telling him I Don't,
and can count on one hand how many times I even tapped a bumper. He
called me a liar.
If I tap a car when parking, I feel like an idiot, that I couldn't
judge.
My old Chevy gets the
plastic end caps Peeled back almost every day. I took some mounting
bolts off so they
don't get creased any more than they are, till I can figure how to
secure them to the
metal bumpers. I want to put spikes sticking out. One side of my front
one was always
getting pushed in, and with another
car, I could kick the opposite side, and square it up, with this
Chevy, I need to get
behind the bumper with a 3' long pipe and beat on it with a 5lb hammer
for about 10min
to get the bumper out. I tried slowly ramming it into a bridge
abutment, after bruising
my thigh, and breaking a parking light when kicking it.
I wound up putting pieces of 2x3" between the bumper and the frame
and haven't had to bang it out since.
VF >> Stay informed about: ABS pedal feel? |
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Since: Feb 28, 2004 Posts: 104
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(Msg. 33) Posted: Thu Jan 31, 2008 7:52 pm
Post subject: Re: ABS pedal feel? [Login to view extended thread Info.] Archived from groups: per prev. post (more info?)
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<houndman.RemoveThis@phonom.net> wrote in message
news:1fc7af08-5a42-4cc6-8189-165df4898c16@1g2000hsl.googlegroups.com...
> On 19 Jan, 17:57, "Blair Baucom" <jbbau....RemoveThis@hotmail.com> wrote:
>> Glad to see someone who has actually considered the facts here besides
>> myself. There have been many tests done, many posted on the internet
>> about
>> stopping distances. I read one of the first, many years ago when BMW
>> introduced ABS on cars where a magazine tested the same car with and
>> without
>> ABS. All you have to do is look for this information. Lots of tests also
>> with the few motorcycles that offer ABS. Look hard enough, and you can
>> read
>> about aircraft ABS where it all started.
>>
>> Measuring stopping distance is not that hard on a given surface.
>>
>> In the case of snow, dirt, gravel, where all four wheels are on these
>> surfaces, ABS can make stopping distances longer. Where I have always
>> liked
>> ABS is on mixed surfaces where maybe one or two wheels have good
>> traction,
>> and the ABS system can respond only to the wheels that have lost
>> traction.
>> Unless you can use fourbrakepedals at the same time, this will be hard
>> for
>> any driver to ever achieve.
>>
>> I am on my 5th ABS equipped vehicle, and the next one will also have ABS.
>>
>> Blair
>>
>> "Uncle Ben" <b....RemoveThis@greenba.com> wrote in message
>>
>> news:3208957f-4138-4518-a5d7-86c7915ce5e0@u10g2000prn.googlegroups.com...
>> On Jan 19, 6:08 am, Uncle Ben <b....RemoveThis@greenba.com> wrote:
>>
>> > On Jan 18, 6:54 pm, "Bonehenge (B A R R
>> > Y)"<DwightSchr....RemoveThis@DunderMifflin.com> wrote:
>>
>> > ....
>>
>> > > The goal of ABS is not to stop the car in less distance, but to allow
>> > > control as it stops.
>>
>> > > Once a wheel locks, it has little traction. An anti-lockbrakeallows
>> > > you to steer while you stop, but may take more distance to stop you.
>>
>> > I won't be dogmatic about it, but I don't understand the explanation.
>> > How can stopping distance be shorter with less traction?
>>
>> > Ben
>>
>> In further reading on the subject I found one case in which ABS takes
>> more distance: braking on soft surfaces. Locked wheels push the soft
>> material ahead forming a slight barrier. Otherwise, I believe that ABS
>> always stops you shorter.
>>
>> Ben
>
> Blair,
>
> Have you had situations where you feel the ABS helped you avoid an
> accident?
> I read that the Ins Institute claims, 50% more likely to roll over,
> Because of the
> ability to steer when braking. Now, having Never hit anything only
> driving Non ABS cars,
> I look at the roll over danger more of a danger than steering being an
> advantage, and
> where I usually drive, there is No place to steer to anyway, and not
> hit something, so I'd
> want the shortest stopping distance, and I adjust to conditions of
> traffic and weather,
> which is probably why I haven't hit anything in 45yrs.
>
> I got into an argument with a friend when complaining about how torn
> up bumpers get
> here in the city, by parallel parkers. The paint was rubber off on the
> corner of his bumper
> so I made a comment. He Must Hit cars when he pulls out, because he
> got Very irate
> and told me you Have to hit a car pulling out. I got irate back at him
> telling him I Don't,
> and can count on one hand how many times I even tapped a bumper. He
> called me a liar.
> If I tap a car when parking, I feel like an idiot, that I couldn't
> judge.
> My old Chevy gets the
> plastic end caps Peeled back almost every day. I took some mounting
> bolts off so they
> don't get creased any more than they are, till I can figure how to
> secure them to the
> metal bumpers. I want to put spikes sticking out. One side of my front
> one was always
> getting pushed in, and with another
> car, I could kick the opposite side, and square it up, with this
> Chevy, I need to get
> behind the bumper with a 3' long pipe and beat on it with a 5lb hammer
> for about 10min
> to get the bumper out. I tried slowly ramming it into a bridge
> abutment, after bruising
> my thigh, and breaking a parking light when kicking it.
> I wound up putting pieces of 2x3" between the bumper and the frame
> and haven't had to bang it out since.
>
> VF
>
The best example was when a car pulled out from the right on a four lane
road and panicked and blocked the two right lanes with me heading at his
door at 35 mph. I had only seconds to determined he was going to stay there
and I was able to use maximum brake force and steer to the left of his front
end.and miss him.
Many times I have avoided skidding into an intersection where the surface is
mixed areas of ice, water and dry pavement with the ABS doing an excellent
job getting traction with the wheels that are able to have traction.
I have rolled two vehicles. one 1971 Ford Maverick no ABS, and 1996 Ford
Ranger XLT Supercab with four wheel ABS. Both times the rear passed me when
friction was less going sideways than forward. Both rolled when they hit
dirt with the tires going sideways. Both had light rears, that tended to
break lose, and solid rear axles that contributed to the end result.
Would like to see a report comparing rollovers to type of rear axle as this
was one of the main changes to the Ford Explorer after the high incidences
of rollover.
Just steering does not make a car rollover if you look at slalom results
around cones at speed, most pass the Consumer Reports slalom course except
the Suzuki Samurai a few years back. Most stunts to rollover a vehicle
involve a mortar to help get it to roll.
I found this tidbit, "NHTSA notes that 90 percent of rollovers happen not on
pavement, as in this test, but when the vehicle leaves the road. " from this
article:
http://www.accidentreconstruction.com/research/suv/jeepliberty112101.asp
This compares to my experience as both of my rollovers where after leaving
the road.
Blair >> Stay informed about: ABS pedal feel? |
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