When a vehicle combines two or more sources of power , then it is a hybrid. In fact many would have probably owned a hybrid vehicle at some point in their lives . For instance , a mo-ped ( motorised pedal bike) , is a type of hybrid because it combines pedal power with the power of a gasoline engine.
Hybrid vehicles are already commonly used . The locomotives that we see pulling trains are diesel-electric hybrids . Cities in the US have diesel-electric buses . These buses can harness the electric power from overhead wires or run on diesel when they are away from the wires. Giant mining trucks are mostly diesel-electric hybrids. Submarines are also hybrid vehicles where some are diesel-electric and the more recent ones are nuclear-electric. When two or more sources of power are combined that can directly or indirectly provide propulsion power for a vehicle , it is termed a hybrid .
When you cross a gasoline-powered car and an electric car -a gasoline-electric hybrid is born. Hybrid car contain the following components.
Gasoline engine
The gasoline engine on a hybrid is smaller than normal cars. However, it uses advanced technologies that reduce emissions increase efficiency.
Fuel tank
It is the energy storage device for the gasoline engine. Gasoline has much higher energy density than batteries do. For instance , it requires about 1000 pounds of batteries to store as much energy as one gallon (7 pounds)of gasoline.
Electric motor
This component is sophisticated . Due to its advanced electronics, it is able to act as a motor as well as generator . This motor can draw energy from the batteries to accelerate the car and return the energy to the batteries,thus, acting as a generator.
Generator
It is similar to an electric motor ,but its role is to only produce electric power.
The batteries
The batteries in a hybrid car are the energy storage device , serving the electric motor . The gasoline in the fuel tank can only power the gasoline engine . But the electric motor in a hybrid car can put energy into the batteries as well as draw energy from them.
Transmission
The transmission or the gear system in a hybrid car performs the same basic functions as the transmission in a conventional car.
You can combine the two power sources found in a hybrid car in different ways. One way is known as a parallel hybrid. It has a fuel tank supplies gasoline to the engine. Another source of power that is available is a set of batteries that supplies power to an electric motor . Both the engine and electric motor can turn on the transmission then turns the wheels.
Why the hybrid car?The reasons are twofold: to reduce emissions and to improve the vehicle's mileage.
A car that burns twice as much gas to go a kilometer will contribute to approximately twice as much pollution . This pollution can be removed by the emissions control equipment in the car.Therefore by decreasing the fuel consumption of the car, WE are decreasing the emissions. Furthermore carbon dioxide is another of pollution that a car coughs up. Scientists suspect that carbon dioxide contributes to global warming . For the moment, a conventional car has no device to remove carbon dioxide from the exhaust. Hence the hybrid car could help reduce pollution in our environment.
( Yak' s assessment)
Let'e take a look a the picta which one do you think hybrid car..=)
Chevrolet |
Volkswagon |
Honda |
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