Author by : Thomas Manning

From the first moment you step into a hybrid car, you will notice that a multitude of things are vastly different than your conventional vehicle. Turn the ignition key, and you will notice just how quiet these things are. For example, if you happen to be sitting in a Toyata Prius the car’s electric generator will quietly fire up the conventional internal combustion engine, or “ICE”. As the ICE comes up to operating temperature it will automatically be shut off, which brings the car’s electric motor completely online. The gasoline engine will remain in a dormant state until it is further needed.

The Toyata Prius will remain completely in electric mode as long as speeds fall under the 15 M.P.H. limit. As long as you don’t exceed that speed, you are driving an entirely electric powered vehicle which is using absolutely no gasoline, nor releasing any harmful emissions from its exhaust system. Obviously, if you drive a bit more aggressively, or exceed 15 M.P.H. the ICE will again come online to produce the necessary, additional power required. A computer is constantly calculating the power requirements and sending this data to a device called a power split, which connects the electric and gasoline engines through a series of gears.

Things work slightly differently if you happen to be in a Honda Insight. The gasoline engines in these vehicles remain online from first start until they reach operating temperature, and come to a first stop. The ICE will become completely dormant at that point. As soon as you remove your foot from the brake pedal, shift into gear, or depress the accelerator the combustion will again come online to provide additional power as required. The variety of available transmissions in the Honda line of vehicles has made it necessary to utilize a bit more elaborate system of engaging and disengaging the electric motors. The dash panel will keep you constantly informed of the amount of electrical assist that is being provided. All the while a computer is in the background calculating how much power is required, and allowing the electrical assist to occur. This type of system allows for near conventional car performance, while achieving much greater fuel economy.

The nickel metal hybrid battery systems in these vehicles are quite fascinating. Again, a computer is constantly making calculations, sending power from the batteries to the electric motors when required. When the vehicle is in braking mode the electric motor begins to act as a generator, supplying the batteries with their needed charge. The computer is constantly monitoring the amount of charge in the batteries and maintaining a 30% - 80% charge at all times. These minimum and maximum levels are what allow these batteries to last in excess of 200,000 miles. That’s a quite impressive lifecycle for battery technology, and a great thing as hybrid car batteries are quite expensive.

While this is a very simplistic overview of a very complex system, it does give you a basic understanding of the inner workings of the hybrid cars of today, and will hopefully be of assistance as you continue your quest of buying a hybrid car.

[tags]hybrid car, hybrid cars, hybrid car batteries[/tags]

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Author by : Tyson J Stevenson

A hybrid car is such a car in which two types of motors are synchronized to provide power to the wheels. The most popular combination is the one in which the gasoline engine is assisted by the electric motor so that the gas engine is periodically shut off in order to reserve fuel.

Usually hybrid cars are subdivided into two major categories.

In the first type, only the use of electric motor propels the engine at very low speeds. The electric motor has the inherent ability to assist the engine when more power is required. It helps out the gasoline engine even while climbing or passing a steep road. The Ford Escape Hybrid and the Toyota Prius fall into the initial category.

The second of its kind requires extra horsepower for its gasoline engine to drive while in rapid acceleration or when moving up the hill. It utilizes that excess power only from the electric motor to assist the internal combustion engine. The Honda Insight and Civic Hybrid are ideal examples of the second category. These two engines do possess some resemblances as well.

When electric motor is used to assist the gasoline engine, both of the hybrids extract power from the battery depleting power, which in turn gets simultaneously self-recharged from the gasoline engine. Hence a hybrid car does not need to be plugged into a power source to recharge its battery, which is the most important aspect of hybrid cars.

Hybrid cars usually utilize sealed nickel metal hydride batteries, a technology which is popularly used in laptops and cell phones. These batteries are easy to make, cost effective and long lasting thus making it ideal for a higher valued car.

Hybrid engineers more than often have opted for unconventional design facets to maximize aerodynamics inside the engine, giving rise to its slim structure. These car units originally have very low (ultra low) drag coefficient due to sleek configurations, which make the cars slippery. All car makers strive to reduce drag, as a vehicle with less drag requires less power as well as fuel to move.

The electrical system is monitored by an on board computer system. The system is program controlled in such a way that when the vehicle is coasting downhill or the brakes are applied, polarity of the system is automatically reversed as the motor actually turns into an energy generating unit. This process is popularly known as regenerative where the conversion of mechanical energy to electrical energy stores up power into the battery.

All hybrid cars normally shut the gasoline engine off during road signals so as to conserve fuel reserve. The phenomenon is called idle stop characteristics. It cuts electrical consumption down during idle condition other than fuel saving and emission reduction. On pressing the accelerator paddle, the gasoline engine resumes work getting assistance from electric motor. The process being silent and seamless, the loss or delay in overall performance during this time is almost negligible.

The hybrids are manufactured by a special forging process termed as shot peeing, which reduces friction in the sidewalls of the cylinder thus increasing efficiency.

Hybrid cars, thus, by virtue of their technological advancement, exceptional fuel economy and marginal gas emissions, can be easily termed as the next generation cars

[tags]hybrid car,Honda Insight,Civic Hybrid,Ford Escape Hybrid,Toyota Prius[/tags]

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Author by : Eddie Tobey

Hybrid cars are products of the world’s latest technology. They were invented as a result of the problems confronting modern society, like oil price hikes and environmental hazards that are undeniably causing harm to both humans and Mother Nature. As a vehicle run by a combination of electricity and gas, a hybrid car can help save fuel and money and reduce air pollution. Here is how it works.

In a hybrid car, it is not only the engine that is connected to the transmission—the part that passes the power on to the wheels and pushes the car forward—but also an electric motor. Both the engine and the electric motor can power the vehicle. The former runs the car and the latter functions when needed to increase power. This type of hybrid is called parallel. The other kind is the series hybrid, where a gas engine powers the generator. The generator then charges the batteries and powers the electric motor. The gasoline engine doesn’t power the car on its own. The electric motor operates when the car moves below a certain speed and the gasoline engine functions only when that speed is exceeded.

In addition, the engine of a hybrid is smaller than that of the common car, so the car is lighter and more efficient to manage and, hence, less fuel-consuming. And not only that, when a hybrid car is in motion, it recharges the battery. When it is running slow, or not moving at all, or when it brakes, it also recharges itself. Logically, the more electricity the car uses, the less fuel it uses. This is why hybrid cars don’t use as much gas as conventional cars.

This can help you reduce the number of trips to the gas station, saving time, money, energy, and guilt about being an earth pollutant.

[tags]How Hybrid Cars Work[/tags]

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