Active and Passive:
Car safety features are grouped into two categories: Active and Passive. Active feature are designed to reduce the likelihood of a crash. Things such as tires, brakes, lights and steering are active features. The most important of all of them however is the driver.
Passive safety features aim to reduce the damage done to a car's occupants in the event of a crash. These include things like seatbelts, airbags, and crumple zones.
For all these features any car can still crash so this report aims to make you more aware of the safety aspects of modern cars and what role they play in driving.
Active Safety Features
The brakes play one of the most important roles in overall safety and so it important that they are reliable and durable.
A good braking system always stops the car in the minimum distance possible while remaining stable, have a constant response which is consistent with brake pedal pressure and let you easily control the car while braking.
Disk and drum brakes are the two types used in cars. Drum brakes are very good to have on your rear axel but not as effective on the front where better balance and heat dissipation is a must.
Heat dissipation is the brakes ability to get rid of the immense amount of heat created by the friction between the brake surface and frictional pads. This is very important since it reduces the amount of friction that can be applied (brake fade) and it can boil the brake fluid rendering the brakes completely useless.
Disk brakes can dissipate heat much more effectively and therefore are much better when you brake often or at high speeds. The best disk brakes are ventilated.
ABS (Anti-lock Braking System) is a system which stops the wheels locking up into a skid when braking on slippery surfaces. It works by using a computer which monitors wheel speeds and drives pistons which alternatively increases and decrease brake pressure several time a second on...
Bibliography: Car Safety: what to look for and how it works: http://www.ltsa.govt.nz/factsheets/72.html
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