

| Subject: | Re: Why Bigger Brakes Was Cause of brake rotor warping |
| From: | Scott Daniel |
| Date: | Sat, 14 Sep 2013 18:44:20 -0700 |
how does one 'watch' ABS with air brakes ? re the other comment.. I was talkingabout modern exotic brake systems thatare considerably beyond regular ABSbrakes. people know about modern eletronic aids like say ....Torque Vectoring Read Differential , right ? I'm developing a similar system for vanagons. On 9/14/2013 4:57 PM, Dennis Haynes wrote: > Fun to watch ABS with air brakes. > > Dennis, > >From my phone. > ________________________________ > From: Larry Alofs<mailto:lalofs@GMAIL.COM> > Sent: 9/14/2013 7:31 PM > To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM> > Subject: Re: Why Bigger Brakes Was Cause of brake rotor warping > > ABS isn't very "super modern high tech" anymore > > Larry A. > > > > On Sat, Sep 14, 2013 at 4:42 PM, Scott Daniel <scottdaniel@turbovans.com>wrote: > >> Hi Dave ... >> obviously .....one doesn't waituntil loss of control of descent speed is >> starting to happen. >> I think you live in an area that does not have a lot of long or steep >> descents. >> Those two mentioned the other day are classic descents on the West >> coast (where there are many long chalelening descents' ) >> >> as soon as one starts into one of those ..if thinking and at all a >> skilled driver ..you go right into 'long steep descent mode' .. >> you keep speed down, you downshift etc. >> >> done right ...there's never any feel of brake fade. >> Heck ..if someone ever feels brake fade affect at all, they've already >> over-driven the brakes. >> If that does happen ..you immeidately go into 'even slower more careful >> mode' . >> >> 'usually' when a truck can't control their descent speed ...they may >> have never built up much real speed. >> a say 60,000 lb truck can be going 7 mph and not be able to stop. Even >> slowerthat that sometimes. >> So probably, most of thetime trucks don't fly into those gravel traps >> at say 60+. >> I think I have seen just one ever in a gravel trap .. >> and I doubt they entered going very fast at all. >> >> there is a LOT one can do that's intelligent when braking any vehicle. >> It's not just 'pushing on that pedaland seeing what happens.' >> >> Develope a feel for it. Use your brakes all kinds of ways that you >> wouldn't usually in safe places. >> People should have an idea what their van is going to do in a panic stop >> situation at say 70 mph. >> Of course people should never 'drive into' situations >> where there's going to be any panic stop situation. >> Manypeople do though ...'most drivers' are fairly clueless. >> not montioring what's going on behind them and way behind them.. >> or WAY out in front of them .. >> they let people fly formation on them, follow too close .. >> drive alongside buses and trucks for miles at a time.. >> and many other dumb things .. >> and.. >> heck ..even in a panic stop ..it is not 'cream on the brake pedal full >> instaneous effort' . >> that's good way to loose control of the vehicle. >> Even in a 'oh crap !!' panic stop ...use 'feel' ....you want the tires ( >> on dry pavement ) just short of lock-up. >> >> if fact ...super modern high tech cars like BMW's and Mercedes can tell >> when the driver has freaked out and is in full panic stop mode, and will >> operate the breaks appropriately and much better than a paniced typical >> clueless driver can. >> >> Electro-hydrualic brakes ..all computer controlled, can do things like >> drag the pads very lightly on the discs in rainy conditions..to keeep >> the pads dry. >> Modern cars have 'electronic brake force distribution' .. >> the sensors and computers in the cars are working hard to get the >> absolute most out of the brakes. >> Heck ....some exotic cars have carbon ceramic brakes that are an 8,000+ >> dollar option. >> Those don't fade, period. >> >> Just drive smart is all ! Drive within the capabilities of the >> vehicle and stay 'AWAY' from other cars as much as possible - you'd >> think people would realize this, but they don't. One gender I am sure >> feels better closer to other cars ...like that's more trusting and >> intimate driving that way ... ...something that we are not allowed to >> say ..but it's an actual factor. >> I've had someone 'lock on' to me at night .. >> on totally empty roads ..over and over ...just could not shake 'em .. >> whether I sped up or slowed down ...every 10 minutes or so ..there'd >> they be ..'locked on' again ..close to me, on a totally empty deserted >> road. Sure enough ..it wasn't a man. >> try to drive AWAY from other vehicles please ! It can onlyhelp. Dense >> traffic is a differen story of course. >> And even then people don't see how to 'control and defend their >> position' intelligently in the whole mass. >> >> besafe ! >> >> >> >> >> On 9/14/2013 6:42 AM, Dave Mcneely wrote: >> >>> Well Scott, what does one do if the brakes are overheated, but not using >>> them will result in uncontrollable speed? I have never had this situation, >>> though I have driven on some several mile long, steep grades. But some >>> people have. Truckers certainly have faced that situation, to the point >>> that highways are equipped with runaway truck ramps. I can sure imagine >>> the fear involved in having to pull into one of those things! mcneely >>> >>> ---- Scott Daniel <scottdaniel@turbovans.com> wrote: >>> >>>> I hope everyone recognizes it's better to cool brakes by driving and not >>>> using them, then to just stop with very hot brakes. >>>> >>>> >>>> On 9/13/2013 8:29 PM, Dave Mcneely wrote: >>>> >>>>> ---- Mike Miller <mwmiller6@ATT.NET> wrote: >>>>> >>>>>> I certainly didn't do it on purpose. In both cases when it happened I >>>>>> just didn't think it would, but there was never a place to get off the >>>>>> brakes and let them cool. Constant downgrade and suddenly overheated! >>>>>> >>>>> What gear were you in? Was there a place to stop? Maybe not, on some >>>>> mountain roads there is no place to pull over. But in a low gear one is >>>>> usually able to keep the speed down enough to rest the brakes sometimes. >>>>> >>>>>> On Sep 13, 2013, at 3:54 PM, <mcneely4@cox.net> wrote: >>>>>> >>>>>> ---- Mike Miller <mwmiller6@ATT.NET> wrote: >>>>>>>> Haven't had to gear down yet, but I haven't gone over those two >>>>>>>> roads again either >>>>>>>> >>>>>>> I don't have to be on brutally downhill roads to gear down and avoid >>>>>>> excessive braking. I have never overheated brakes, and I don't intend to. >>>>>>> mcneely >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> ______________________________**__ >>>>>>> >>>>>> -- >>>>> David McNeely >>>>> >>>>> -- >>> David McNeely >>> >>>
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