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Abs Braking System

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andrew sharman

on 24 October 2012

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Transcript of Abs Braking System

By: Andrew Sharman Car Safety Project ANTI-LOCK BRAKING SYSTEM
(ABS Braking system) HISTORY Work Cited http://www.ehow.com/about_5042665_history-abs-brakes.html ABS brakes were first invented in the 1920's primarily for aircraft brakes to prevent loss of control as they came in for a landing. Since control is a big problem once the wheels on a vehicle lock up from hard braking, they were later put onto motorcycles in the 1950s since the risk from a lock up is devastatingly fatal with the lack of protection motorcycles have. A light crash from brake lock up can look like this. It wasn't until the 1960's that the automotive industry began testing the ABS braking system in cars starting with the Ford Zodiac and it was because of the expenses associated with building and installing the braking system that had caused many companies to abandon any type of production with the use of the braking system. It wasn't until around 1980 that the production and influence became a massive hit and soon after began appearing in Mercedes- Benz and BMW cars. A man by the name of Gabriel Voison was the proud and sole inventor for the ABS braking system for the aircraft in the 1920s Ford Zodiac How It Works! ABS braking works by rapidly applying great and even pressure to every brake and then releasing it for a split second and reapplying the pressure again and again. There are sensors on the wheels that monitor any rapid decelerations of any wheel, as shown in the diagram below. In doing this the wheels can't lock up since it applies a limited pressure instead of full pressure, as well as only being applied for a fraction of a second. Most ABS systems apply the brake 20 times per second! With having the limited pressure and a simulated "pumping of the brakes," this allows the car the rapidly slow down while letting the driver control the car when the system releases the brakes, causing the wheels to rotate a tiny bit instead of locking up. ABS helped this driver stop just before the busy intersection while on a wet road. Without it, he would have started to spin and either end up in the ditch to the side or fully into the intersection. Which would have been REALLY BAD in case there was any confusion! Occasionally the ABS system will trigger if the driver hits a pot hole or loses traction with a wheel since this will trick the sensors in thinking that one wheel is moving faster or slower than the rest. www.youtube.com/watch?v=xd5KDvXbE3M www.youtube.com/watch?v=ngKSirE7zJA What's The Point of Having ABS? The point of ABS is to prevent the cars wheels from becoming locked up and making the car lose control. The braking system makes it much easier to stop in certain road conditions and also lets the driver keep complete control over the car. It also saves your tires from skidding along the road which can wear the tires down dramatically. Here's a short video explaining ABS comparatively to regular brakes http://www.quora.com/Does-having-anti-lock-brakes-ABS-make-a-car-stop-faster-than-not-having-them ADVANTAGES and DISADVANTAGES ADVANTAGES Stop at a shorter distance Prevent car from skidding Stop accidents from happening Saves lives Save Money and Tire life http://www.carsdirect.com/car-safety/disadvantages-of-anti-lock-brakes Is able to be easily installed along with the Traction Control System DISADVANTAGES Can actually increase stopping distances
(in some ice conditions and on gravel) The reason that ABS can increase the stopping distance on gravel and in some ice conditions is because it may be necessary for the vehicle to dig into the road in order to actually stop successfully. However ABS braking in these situations still gives the driver much better control over the car. You can save a lot of money on insurance since it is a registered and tested safety device that helps in accident avoidance. As well as saving money on tires that become bald prematurely. By giving the driver the control and ability to either stop before or move out of the way in case of a potential crash. This is because it stops the car from locking up, which is the main cause for skidding tires. By helping avoid those accidents all together. Which allows for the car to become much safer by having separate sensors to monitor traction at the same time as tire rotation. Which could be a deciding factor in avoiding car crashes. Drivers tend to be more aggressive with ABS installed ABS repair costs With ABS being a very complex and precise system it can be expensive to repair.
$630 -Speed sensor repair
$1500 - Hydraulic and electronic components (collective)
These are just the average prices of the main parts repaired on an average ABS system. http://ths.gardenweb.com/forums/load/cars/msg0716173717530.html?20 http://www.automotiveforums.com/t577273-abs_control_module__repair__replacement_cost.html Easy to mess up ABS system It's a common problem for drivers to mess the ABS system by just tampering with the average braking system. If a person isn't careful they can cause the ABS system to become unable to detect the tire rotation or just completely turn it off by accident! Also you don't need any additional training to know how to use them. How to use ABS Brakes To use ABS brakes the correct way, there is a small procedure the driver must follow to activate the braking system: "Stomp!" "Stay!" Steer! "Firmly depress the brake pedal" "Stay on the brakes! Don't pump the brakes!" "Steer where you want to go!" When using ABS brakes the driver may feel a constant vibrating coming from the pedal, and that's whats supposed to happen. It's a way the driver can tell that the ABS is working properly. With all these benefits of ABS, it doesn't not help against bad driving under any stretch of the imagination. Meaning YES you still have to drive safely!! ON A FINAL NOTE: Thank You!
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