วันอังคารที่ 10 พฤศจิกายน พ.ศ. 2552

Electric Vehicles

Today, more people have many opportunities in my vehicles and cars. Now they have the possibility of electric vehicles. But what exactly is an electric vehicle? In simple words, an electric vehicle or EV, is a vehicle with one or more electric motors for propulsion. Thus the movement can be either by wheels or by rotating propeller engines, or in the case of tracked vehicles, provided by linear motors.

The energy used to this type of drive can come from various sourcessuch as:

1. Stored chemical energy from the vehicle on-board batteries: Battery electric vehicle

2. From both an on-board) rechargeable energy storage (RESS and powered propulsion power source: hybrid vehicle

3. Generated on-board with an internal combustion engine, as in a diesel-electric locomotive

4. Generated on-board with a fuel cell: fuel cell vehicle

5. Generated on-board using nuclear energy for nuclear submarines and aircraftCarrier

6. From more esoteric sources such as flywheels, wind and solar

7. By a direct connection to land-based generation plants, as in electric trains and trolley buses common

Electric vehicles use electric motors typically used for vehicles, because they drive are finely controlled, they deliver power efficiently and are mechanically very simple. In addition, these motors often achieve 90% efficiency over the entire speed range andPerformance and can be precisely controlled. So it is not wrong to say that these engines can provide high torque while an electric vehicle is stopped, unlike internal combustion engines, and do not need to gear to match the power curve.

In these days of electric vehicle in two important ways that are designed electric cars and hybrid vehicles. Electric cars covert chemical energy into electrical energy in batteries, whereas hybrid vehiclesconvert chemical energy into electrical energy via a combustion engine and a generator. However, there is a less well-established form of the electric vehicle, which attempts to combine 'plug-in hybrids. This "plug-in hybrid" to the benefits of both designs and makes the moderate capacity batteries of a hybrid vehicle to be not only to be charged from the internal combustion engine and generator.

Electric vehicles are electric wheelchairs, the Segway HT, electricMotorcycles and scooters, motorized bicycles, golf carts and neighborhood electric vehicles. Are still working a few electric vehicles include heavy equipment, forklifts, and many other service and support vehicles. So if you are environmentally conscious then electric vehicle is best for you.



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