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An anti-lock braking system (ABS, from German: Antiblockiersystem) is a safety system that allows the wheels on a motor vehicle to continue interacting tractively with the road surface as directed by driver steering inputs while braking, preventing the wheels from locking up (that is, ceasing rotation) and therefore avoiding skidding. An ABS generally offers improved vehicle control and decreases stopping distances on dry and slippery surfaces for many drivers; however, on loose surfaces like gravel or snow-covered pavement, an ABS can significantly increase braking distance, although still improving vehicle control. Stopping a car in a hurry on a slippery road can be very challenging. Anti-lock braking systems (ABS) take a lot of the challenge out of this sometimes nerve-wracking event. In fact, on slippery surfaces, even professional drivers can't stop as quickly without ABS as an average driver can with ABS. The theory behind anti-lock brakes is simple. A skidding wheel (where

The fuel cell vehicle (FCV) is the nearest thing yet to an "ultimate eco-car" that offers solutions to energy and emissions issues. FCVs are powered by fuel cells, which generate electricity from hydrogen, which is not only environmentally friendly and highly energy-efficient, but can also be produced using a variety of readily available raw materials. Thanks to these characteristics, fuel cell vehicles are ideal for achieving sustainable mobility. Therefore, Toyota is striving to make this vehicle technology widely available as soon as possible. Successful startup: -30° Celsius Extended cruising range: 830km (JC08 mode) without refueling At a steady cruising speed, the motor is powered by energy from the fuel cell. When more power is needed, for example during sudden acceleration, the battery supplements the fuel cell’s output. Conversely, at low speeds when less power is required, the vehicle runs on battery power alone. During deceleration the motor functions as an ele

The hybrid diesel locomotive is an incredible display of power and ingenuity. It combines some great mechanical technology, including a huge, 12-cylinder,  two-stroke diesel engine , with some heavy duty  electric motors  and generators, throwing in a little bit of computer technology for good measure. This 270,000-pound (122,470-kg) locomotive is designed to tow passenger-train cars at speeds of up to 110 miles per hour (177 kph). The diesel engine makes 3,200  horsepower , and the generator can turn this into almost 4,700 amps of electrical current. The four drive motors use this electricity to generate over 64,000 pounds of thrust. There is a completely separate V-12 engine and generator to provide electrical power for the rest of the train. This generator is called the  head-end power unit . The one on this train can make over 560 kilowatts (kW) of electrical power. This combination of diesel engine and electric generators and motors makes the locomo­tive a  hybrid vehicle . In t

THE GIST OF THE STORY Jaguar has unveiled a new turbine-powered car, the C-X75. The car runs on micro-sized turbine engines that burn fuel to charge the battery, which powers four electric motors. The car can go from 0-62 mph in 3.4 seconds and has a range of 560 miles.   ===========================================================   Jaguar, working with Bladon Jets, recently unveiled a hybrid concept car, the C-X75, that can accelerate from 0 to 62 mph in a blistering 3.4 seconds. The car gets its power from two new micro-sized gas turbine engines that are slightly larger and longer than a human forearm. The jet-like engines feed four electric motors, which give the car a range of 560 miles. "It has long been a dream to get gas turbines into a car; the automotive industry has been trying for 50-plus years," said Gary Lamb, Director at Bladon Jets. "It is only now that we have a viable proposition." To most people a gas turbine engine is the huge c

THE GIST OF THE STORY Combustion engines are incredibly inefficient. Some engineers are looking into ways to recover wasted energy. ================================================================   To hear some people tell it, the internal combustion engine is dead. Some engineers aren’t so sure. We’ll check it out. Today, on Engineering Works! Listen to the podast. Just about everybody knows a little about internal combustion engines. They’re what powers almost all of our cars, trucks and motorcycles. They’ve been around for more than a hundred years, and they’re boring. They’re also really inefficient. Only about a quarter of the energy in fuel actually turns the wheels and takes us down the highway. The rest, mostly heat, is just wasted. Engineers are looking into some nifty ways to get that wasted energy back. One group of British engineers are working on a tiny turbine that would fit in the tailpipe. Exhaust from the engine would spin the turbine. It would drive

* Automotives * The last 100 years has seen the rise of the automobile as our primary mode of transport. The technology is constantly evolving and there are no signs of decline in the industry. Automotive engineering is the combination of mechanical engineering, vehicle dynamics, drivetrain engineering and engine design to form a subject that deals with all aspects of vehicle design.  Automotive engineers study such subjects as aerodynamics, vehicle ride and handling, power generation, crashworthiness and even management,  looking at every component in modern vehicle construction. The entire automotive drivetrain, including the suspension, transmission, brakes, tyres and engine, can be modelled and simulated on computer making development of new components/vehicles a quick and relatively inexpensive process. With these new concepts emerging in an already large discipline, automotive engineering is an ever expanding field. As we move into the 21st century, the automobile, in all its for

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