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Topic: Antilock brakes

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	2.972 How Anti-Lock Brakes Work
		Antilock brake systems are designed to sense wheel locking before it occurs and then release the brakes so that locking does not occur.
		The pressure of the hydraulic fluid in the braking cylinders is proportional to the force applied to the brake pedal by the driver.
		When the brakes are engaged under normal use (the antilock braking system is not engaged), the valve is open, and the pressure in the chamber is the same as the pressure in the master cylinder.
	web.mit.edu /2.972/www/reports/anti_lock_brakes/anti_lock_brakes.html (1251 words)

	Q&As: Antilock brakes: cars, trucks, motorcycles
		Antilocks prevent wheels from skidding by monitoring the speed of each wheel and automatically pulsing the brake pressure on any wheels where skidding is detected.
		Brake pressure to the front wheels of four-wheel systems is controlled independently to maximize stopping power, which is concentrated in the front.
		Antilocks were standard on 1985 S class Mercedes models and standard or optional on about 30 domestic and foreign car models during the 1987 model year.
	www.iihs.org /research/qanda/antilock.html (1747 words)

	Antilock Brakes
		An ABS (antilock brake system) is designed to control braking effort in such a way as to ensure that none of the brakes lock up and cause the tires to skid.
		All that did was to allow the brakes that had locked up to unlock and permit the tires to roll again — and thus you regained control.
		But during antilock braking situations, the control unit operates the valves to override the supply of air to the chambers.
	www.holidayrambler.com /holidays/archive/01septoct/tbrakes.html (1512 words)

	brakes,hydraulic brakes,brake failure, abs,abs brakes,antilock brakes
		When you push on the brake pedal, hydraulic pressure is generated in the master cylinder that is transmitted to the actuators -the wheel cylinders and caliper pistons- through the brake lines, thus applying the brakes.
		The operation of the braking system depends on the integrity of the hydraulic system, the master cylinder must be capable of generating several hundred pounds per square inch of pressure and the rest of the system must maintain the pressure without leaking.
		With a drum brake assembly, the drum, shaped like a pie plate, rotates with the wheel and the fixed shoes move out to engage the drum when the brakes are applied.
	www.e-z.net /~ts/hybrakes.htm (724 words)

	Anti-lock braking system - Wikipedia, the free encyclopedia
		The purpose of this is twofold: to allow the driver to maintain steering control under heavy braking and, in most situations, to shorten braking distances (by allowing the driver to hit the brake fully without the fear of skidding or loss of control).
		However, a limited form of anti-lock braking, utilising a valve which could adjust front to rear brakeforce distribution when a wheel locked, was fitted to the 1964 Austin 1800.
		ABS brakes are the subject of some widely-cited experiments in support of risk compensation theory, which support the view that drivers adapt to the safety benefit of ABS by driving more aggressively.
	en.wikipedia.org /wiki/Anti-lock_braking_system (1620 words)

	Automotive ... The Inside Track - Westways Magazine - Automobile Club of Southern California (Site not responding. Last check: 2007-10-13)
		Antilock braking systems are designed to prevent skids that result when your wheels "lock up," or completely stop turning.
		Antilock brakes are an increasingly common feature, at least as an option, on most cars and light trucks.
		The system repeatedly applies and releases brake pressure much faster than you could (this is what causes the pulsing in the brake pedal).
	www.aaa-calif.com /westways/0506/auto/insidetrack.asp (634 words)

	Racing Schools Safety Fast: Antilock Braking
		There are two primary reasons for this: 1) It isn't entirely clear that antilock braking will reduce stopping distance for the skilled driver; and 2) Antilock brakes add system complexity, cost and weight to the race car, the disadvantages of which outweigh any possible advantages.
		I don't believe that it indicates that antilock brakes are ineffective or dangerous in and of themselves.
		The problem is that stopping with antilock brakes, in an emergency situation, requires an entirely different braking technique than the one used with conventional brakes, and virtually no drivers have had or taken the opportunity to learn this new technique.
	www.racingschools.com /tips/old_abs.shtml (870 words)

	Detroit Free Press Article, Oct 1995 (Site not responding. Last check: 2007-10-13)
		Government studies shows that antilock brakes are a safety advantage on wet roads, reducing by 24 percent the number of multivehicle fatal crashes.
		Automakers are trying to make antilock brakes work asquietly and with as little vibration as possible, sodrivers won't be alarmed when they go into operation.
		From the age of 15, most drivers are taught to pump their brakes in an emergency stop on icy or slick roads to avoid the wheels locking and the car spinning out of control.
	www.wam.umd.edu /~gluckman/Chrysler/AI/DetroitFP2.html (2218 words)

	Antilock Brakes Becoming Standard On Today's Cars, Larry Carley, Counterman, September 1997
		The rapid modulation of brake pressure in the brake circuit reduces the braking load on the slipping wheel and allows it to regain traction, thus preventing lockup.
		The sensor ring(s) may be mounted on the axle hub behind the brake rotor, on the brake rotor itself, inside the brake drum, on the transmission tailshaft or inside the differential on the pinion shaft.
		Antilock brake systems (ABS) are used on millions of vehicles, but many drivers still don't know the "right way" to use ABS in an emergency.
	www.babcox.com /editorial/cm/cm99768.htm (2573 words)

	mitsubishi galant parts > brakes
		Complaint: brakes have severe shake due to uneven parallelism or runout of rotor/ rotors are warping.
		Complaint: the brake system causes vibration in the steering wheel and at the last several rotations of wheels a tremendous clunking occures it seems in the rear end of the vehicle.
		Complaint: the rear brake cylinders on the 2003 mitsubishi galant are leaking.
	www.mitsubishisucks.com /cars/complaints/usa/parts/brakes/galant.html (8254 words)

	Smart Motorist - Improper Steering Endangers Drivers With ABS
		Improper steering in vehicles equipped with antilock brakes (ABS) can send the vehicle veering dramatically out of control, the AAA Foundation for Traffic Safety has found.
		The same action in a car without antilock brakes locked the wheels so the car skidded forward in the lane but hit the obstruction.
		Despite the fact that antilock braking systems (ABS) were designed to reduce crash rates, automobile insurers such as USAA and Allstate have announced that discounts for ABS equipped vehicles will cease.
	www.smartmotorist.com /abs/abs.htm (1044 words)

	ANTILOCK BRAKES (Site not responding. Last check: 2007-10-13)
		Antilock brakes are standard equipment on more than 75% of all new cars and vans.
		The antilock system is designed to sense the potential for wheel lock up and will automatically pump the brakes many times a second.
		Antilocks must be used properly or the antilock system won’t activate.
	www.nonprofitsunited.com /members/focus/sfocus33.htm (333 words)

	Anti-Lock Brakes? (via CobWeb/3.1 planetlab2.netlab.uky.edu) (Site not responding. Last check: 2007-10-13)
		Anti-lock Braking systems were developed to reduce skidding and maintain steering control when brakes are used in an emergency situation.
		Anti-lock brakes are designed to keep cars from going into a skid when the brakes are applied in an emergency.
		A pulsing brake pedal every time you apply the brakes may mean warped brake rotors and/or seized brake calipers that require servicing.
	www.mucda.mb.ca.cob-web.org:8888 /aboutabs.htm (796 words)

	Study: Airbags, antilock brakes not likely to reduce accidents, injuries
		Claims of safety benefits for airbags and antilock brakes assume that motorists drive the same way regardless of whether their cars are equipped with the safety features.
		We test the hypothesis using disaggregate data to analyze the effects of airbags and antilock brakes on automobile safety.
		We find that safety-conscious drivers are more likely than other drivers to acquire airbags and antilock brakes but that these safety devices do not have a significant effect on collisions or injuries, suggesting drivers trade off enhanced safety for speedier trips.
	news.uns.purdue.edu /UNS/html4ever/2006/060927ManneringOffset.html (936 words)

	Antilock brakes for A-bodies? - Chevelle Tech
		You might end up with ABS that just locks the brakes up anyway, reacts too slow, or doesn't react enough and prevents you from using the brakes to their full potential.
		there are 3 sensors- one behind each front brake rotor, and one on the pinion in the rear axle.
		On the other end and I don't know if this was part of the design or not, but under heavy braking as the rear of the vehicle raises the pressure to the rear brakes is reduced and aids in keeping the brakes from locking up.
	www.chevelles.com /forums/showthread.php?t=30084 (821 words)

	Antilock Brakes
		Asphalt seemed to stretch to the horizon, as I lined up at the Proving Grounds test track for a personal introduction to the finer points of what was then a brand new technology – antilock brakes.
		To help minimize the chances that something like that will happen, Safari motorhomes are equipped with antilock brake systems.
		• Braking force is applied to achieve and maintain optimum results.
	www.safarimotorcoaches.com /adventures/archive/02febmarch/brakes.html (1647 words)

	ABS antilock brake issues and repairs (via CobWeb/3.1 planetlab2.netlab.uky.edu) (Site not responding. Last check: 2007-10-13)
		Use only the brake fluid the manufacturer recommends -- silicone based fluids often may not be used (using the wrong fluid may destroy the entire system - at your expense!).
		The hydraulic assembly (the "guts" of the system which builds and releases brake pressure when ABS is invoked) is a separate assembly and can be mounted remotely from the master cylinder's traditional location on the driver's side of the firewall.
		Since antilock systems have more parts, there is naturally a better chance for a failure and since the technology is new, there is even a better chance.
	www.allpar.com.cob-web.org:8888 /fix/ABS.html (1587 words)

	'99 K-2500 Crewcab antilock brakes - Help! - Chevelle Tech
		The anti-lock brakes have been acting up lately (coming on for no apparent reason as I'm nearing a full stop).
		I hate working on the brakes on this truck (actually getting the rotors apart for turning is the part I really hate).
		There is a TSB or even a recall for you snow belt folks, there is a rust buildup where the ABS sensor is inserted into the hub and it forces the sensor out some, the sensor gives the ABS computer false readings.
	www.chevelles.com /forums/showthread.php?p=773609 (1316 words)

	Tire Size and Antilock Brakes - F150online Forums (Site not responding. Last check: 2007-10-13)
		I wanted to put 265/70/16's on it, but I was told that would "screw up" the antilock brakes on the rear wheels.
		During a very transient (mostly theoretical) point in the braking 'adjustment' by the computer, it [computer] looks at how quickly the wheel rolls up following that [theoretical] wheel lock -- for the purpose of determining the friction coefficient of the street surface.
		The tire's actual response against the computer's pre-programmed 'map' of what to expect could be shifted by the 5 or 10% that you've changed the speed of the tire by the increased rolling radius.
	www.f150online.com /forums/showthread.php?p=93605 (842 words)

	Antilock (ABS) brakes and their safety. VETA driver support.
		In spite of disagreements from other researchers, reports from (the industry independent) HLDI and NHTSA have resulted in a widespread and common belief ('authorized' even by Time) that accidents are not reduced with antilock brakes.
		Whether ABS or not, brakes must be properly maintained to avoid failures and spin-outs from rear wheel lock-up, which is likely to occur if you try to stop the car by braking the rear wheels only (for instance with the parking brake or by downshifting in a rear wheel driven car).
		When the brake pedal starts vibrating, you should kick it down even harder in order to brake all wheels to their peak friction force.
	www.geocities.com /Athens/1944 (2030 words)

	Antilock Brakes
		antilock brake system prevents skidding by allowing the
		of vehicle  wheel speed during brake system operation.
		that brake caliper by a hydraulic control unit or an
	www.tpub.com /content/construction/14050/css/14050_167.htm (350 words)

	IIHS Research: Antilock brakes
		April 1995 HLDI car antilock brake study is consistent with NHTSA, GM evaluations
		December 10, 1996 Antilock brakes don't reduce fatal crashes; people in cars with antilocks at greater risk — but it's unclear why
		The Institute has been conducting research since 1969 and, with some exceptions, provides free of charge single photocopies of a reasonable number of research reports.
	www.iihs.org /research/topics/antilock.html (192 words)

	Replacing brake pads on an ABS car - Antilock brakes
		If your car has antilock brakes, changing the pads is a bit different than what most people are used to.
		This procedure forces much of the brake fluid out of the caliper and back into the master cylinder.
		The fluid is put back once you step on the brakes.
	www.jagbits.com /43brakepads.html (297 words)

	Feds to Study Antilock Brakes, Underride Guards
		Note: Reprinting or reproducing any article or parts of an article without permission of American Trucking Associations is strictly prohibited.
		How well the antilock brake system technology performs in heavy trucks will be part of a multiyear study by the National Highway Traffic Safety Administration.
		These components comprise a rear antilock braking system from supplier Meritor Wabco.
	www.ttnews.com /members/topNews/0005366.html (150 words)

	antilock brakes go bang - Automotive Message Forums
		Sometimes when I hit the brakes hard in rain or snow I hear a bang sound and it feels like a spring in a jack in a box.
		Brian R. Normally, you get a high-frequency buzz in the brake pedal when your anti-lock activates.
		If it is not that feeling, take it to a dealer and have them troubleshoot it.
	www.automotivehelper.com /topic427642.htm (207 words)

	Airbags, Antilock Brakes Not Likely To Reduce Accidents, Injuries
		Airbags, Antilock Brakes Not Likely To Reduce Accidents, Injuries
		Researchers have determined that airbags and antilock braking systems do not reduce the likelihood of accidents or injuries because they may encourage more aggressive driving, thwarting the potential benefits of such safety features.
		The behavior responsible for this seeming paradox is called the offset hypotheses, which predicts that consumers adapt to innovations meant to improve safety by becoming less vigilant about safety, said Fred Mannering, a professor of civil engineering at Purdue University.
	www.pharma-lexicon.com /medicalnews.php?newsid=53086 (743 words)

	evolutionm.net - do the OZ come with antilock brakes?
		and my brake pedal goes almost to the floor before stopping......is that norm.
		huey- you've probably burnt up your brake fluid (it breaks down with use and starts to be more easily compressible as it breaks down).
		If you're in the 25K range you may just want to install new pads and replace the fluid with a higher rated fluid- I went with the same DOT rating, but my fluid is designed for SUVs and trucks- I'm really hard on brakes, especially at autocrosses.
	forums.evolutionm.net /showthread.php?t=124714 (812 words)

	Dr. Koop - Drivers Take More Risks With Airbags, Antilock Brakes
		ORLANDO, Fla. (Ivanhoe Newswire) -- Drivers feel so safe thanks to airbags and antilock brakes, they're taking more risks behind the wheel.
		Researchers report there is no difference in the rate of accidents between drivers with antilock brakes, which are meant to prevent accidents, and drivers without antilock brakes.
		You should promptly seek professional medical care if you have any concern about your health, and you should always consult your physician before starting a fitness regimen.
	www.drkoop.com /newsdetail/93/8014656.html (474 words)

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