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History of cars 1800s
Dealer Links
Engines
Exhaust
Heating and Cooling
Suspension
Wheels
Brakes
Steering
Drive Wheels
Fuel
Transmission
Automobile Terminology
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| The suspension system is part of the undercarriage (bottom) of the automobile. It contains the springs that abosorb bumps and vibrations. One type of suspension uses a long tube (a strut), and has a shock built into its center section. Shock absorbers dampenteh sudden loading and unloading of suspension springs to reduce wheel bounce and the shock transferred from the road wheels to the body. One shock is installed at each wheel. Modern shocks have a telescoping design, and use oil, gas, air, or a combination to absorb the energy of the impact. A soft suspension provides for a more comfortable ride. A firmer suspension improves cornering ability, and controll over rough terrain. Older automobiles used one piece front axles, which were attached to the frame with semielliptic leaf springs. Front wheels on modern cars, roll independently of each other on half-shafts, instead of a common axle. Each has its own axle and suspension supports, so the shock of one wheel hitting a bump does not affect a common whole axle, or the rest of the car. Many rear-axle suspensions use rigid axles with coil or leaf springs, however, advanced cars, feature independant rear-wheel suspension systems. Active suspensions are computer-controlled adjustments of a downwards force of each wheel as the vehicle corners or rides over uneven terrain. Sensors, a pump, and hydraulic cylinders, all monitored and controlled by a computer, enable the vehicle to lean into corners,a nd compensate for dops and dives that accompany sudden emergency stops, and rapid acceleration. |
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