With gas prices soaring, so has the interest in the Hybrid car. Let's take a quick tour of the Hybrid car.
Hybrid cars are part of the Green movement. These vehicles extend the efficiency of the combustion engine by combining a battery and electric motors. The electric motors assist the engine thereby reducing gasoline consumption. With the electric motor assist, many Hybrids use a smaller engine than their conventional brethren, further reducing gas consumption.
It is typically believed that Hybrids, like the all-electric vehicles (EVs) of the recent past, would require to be plugged-in to recharge the batteries. However, the on-board batteries of the Hybrids are recharged by capturing the kinetic energy produced when the car is coasting or braking (called regenerative braking), or by the engine directly.
Full versus Mild Hybrids
Hybrids fall into two groups: Full and Mild. Full Hybrids describe a system is which both the engine and electric motors drive the vehicle. Either can work together or separately. The engine is turned off to conserve fuel when the vehicle is at a standstill, or when coasting. The electric motor, without the engine, drives the vehicle during slow acceleration or when the vehicle requires only a small amount of power. This type of Hybrid is available from Ford, Toyota, and Lexis.
Mild Hybrids use the electric motor primarily to supplement the gasoline engine under heavy demand. The electric motor is smaller, and never drives the vehicle by itself. It also shuts off the engine when at a standstill. This type of Hybrid is used by General Motors and Honda.
Parallel versus Series Hybrid
Still struggling with Full vs. Mild? The next set of terms, Parallel vs. Series, is guaranteed to add to the confusion. I will try my best to keep it simple.
In a parallel Hybrid, the fuel tank supplies power to the gasoline engine while at the same time the battery provides the power to the electric motors. Both the engine and motors can be used to drive the vehicle together.
With the series Hybrid, the on-board batteries are charged by the gasoline engine. The electric motors are the only device that drives the vehicle; the engine does not.
All Hybrids today are parallel Hybrids. In the near future, with the introduction of the Chevy Volt, we will have a series Hybrid. More precisely, a pluggable series Hrybrid.
Pluggable Hybrids
While the pluggable Hybrid does not need to be plugged in (this is optional), the ability to do so will enable the batteries to be recharged while the vehicle is not in use. This will greatly extend the Hybrid's range; a limitation in the past with all electric vehicles.
Hydrogen Hybrids
A dramatic change from the Hybrids above that rely on engine-motor solutions, the Hydrogen Hybrid relies on Hydrogen gas to significantly improve the efficiency of the engine. The Hydrogen Hybrid system is often called an on-demand Hydrogen generator. The Hydrogen gas is used to supplement the fuel in the tank, an approach employed by fleet vehicles for decades to reduce fuel consumption. The engine provides the power for generating the Hydrogen gas through the electrolysis of Water.
The Hydrogen gas (more correctly called oxyhydrogen or HHO) is mixed with the gasoline in the engine cylinder to produce additional power thus increasing the efficiency of the engine. The advantage of this Hybrid is that it is easily adapted to existing vehicles and uses plain tap water for its energy source.
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For those who would like to learn more about Hydrogen Hybrids, then select the How Do Hybrid Cars Work. To learn more about converting your car inexpensively then select Run Your Car on Water
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