Saturday, August 9, 2008

Features You may Want for Your Hybrid Car

Hybrid carswere not created equal. Some produce more power. Some are designed for maximum fuel efficiency. Some are built for city driving; others are made to turn heads. Most have unique features that further improve the quality of driving and fuel economy. When you are shopping for one, take note of the following features.

Regenerative breaking system
In conventional gasoline-powered cars, all the kinetic energy (energy in motion) is lost and wasted during braking. Hybrid carsrecapture this kinetic energy through the regenerative braking system back to the battery for future use. The regenerative braking system increases fuel economy and reduces wear to the brakes.

Low-rolling resistance tires
Tires are often not seen as a major factor in increasing the fuel economy. But in hybrid cars, they use low-rolling resistance tires to improve gas mileage. These stiffer, narrower, and inflated tires reduce the drag against the ground.

Fuel economy
Not all hybrids are fuel efficient. Some are made to perform. And even if the hybrids are made to get the longest miles out of every gallon of gas, some are still better than others. For example, the Ford Escape Hybrid runs 34 mpg in the city and 30 mpg on highway. Toyota Prius runs 48 mpg in the city and 45 mpg on highway. The Honda Civic Hybrid runs 40 mpg in the city and 45 mpg on highway. When choosing what hybrid car to buy, take note of these differences.

Periodic engine shut off. Idling consumes fuel too. So, most hybrid carsautomatically turn off its combustion engine temporarily during stops. A hybrid car with this feature is most ideal if you drive in stop-and-go traffic most of the time.

Smaller and more efficient engine
Logically, the car does not actually need a V6 or a V8 in order to run because most of the time, your car only requires 20 hp to move. The extra horsepower is only needed during acceleration. This is the reason why hybrid carsare so efficient. They use smaller engines.

Safety, Comfort, and Space
These are 3 issues that are questionable to hybrid cars. In general, hybrid cars are as safe, as comfortable, and as spacious as their non-hybrid counterpart. But if you are more concerned about not getting these 3 in a hybrid car, you should not have a problem. There are several hybrid cars on the market today that focus on these 3 areas.

Friday, August 1, 2008

Different Types of Vehicles

Cruder Forms
Vehicles were first made thousands of years ago. The earliest forms of vehicles were actually living things like horses, elephants and camels. After that, cycles were created around the 19th century which comes in many forms. Bicycles are one of the most common types of vehicles available today. Later on, motorcycles were invented which incorporated a motor engine instead of manual pedals.

Origin of Alternate Fuel Sources
Electric vehicles or EVs were invented in the 1830's which use one or more electric motors. The rotary or linear motors propel the vehicle through the wheels. Linear motors are used by tracked vehicles such as trains and MRTs. There are several sources of energy used to move the vehicle like an on-board RESS or rechargeable energy storage system, batteries, on-board super capacitors and direct connection to energy-generating plants. Fuel cells and nuclear energy have also shown to be very viable in propelling vehicles.

Steam engines are another alternate fuel source which uses an external combustion engine or ECE. Steam cars do have a problem when starting from cold leading to the development of flash boilers.

The Automobile
Automobiles are the most common type of vehicle. The majority of automobiles today were powered by gasoline or diesel engines. Automobiles use an internal combustion engine or ICE which can be highly polluting due to the constant burning of harmful gases. Gasoline engine vehicles are lighter and able to work at optimum rotational speeds. The invention of the electric starter has boosted its popularity beating steam and electric cars in the process. Carburetor and fuel injection are some of the most useful discoveries in enhancing automobile performance.

There are various innovations in the engine allowing exhaust gases to be less harmful. Gasoline engines are capable of running with different ethanol concentrations. Fuel burn efficiency of gasoline engine vehicles are around 27%.

Diesel engine vehicles are more cost-effective compared to gasoline engine ones because of their 50% fuel burn efficiency. However, power and performance is also compromised due to less concentration of fuel. Diesel also releases exhaust gases into the atmosphere from soot particles. 100% biodiesel has been developed to improve the downside of these vehicles.

Other Transports
A train is a series of vehicles moving along a guided track or rail. A separate locomotive provides power to propel the entire train. Diesel or electricity is the usual energy source of trains while older versions were dominantly powered by steam engines. There are special kinds of trains with special tracks like rubber-tired underground, high-speed and monorails. A road train has a prime mover pulling one or more trailers. Since the weight and maneuverability are a challenge, these vehicles often require several wheels for more control. Diesel engines usually power big heavy trucks and road trains for fuel efficiency and power.

Other unique types of vehicles are amphibious vehicles and snowmobiles. Amphibians can run on both land and water making them very versatile. There are amphibious bicycles, cars, trucks and ATVs developed for passenger and official use.

Tanks use the same mechanism as snowmobiles by running on steel tracks.

Wednesday, July 30, 2008

A Brief Guide to Hybrid Vehicles

Hybrid vehicleswere the stuff of dreams centuries ago. Nobody ever thought that creating a vehicle independent from fuel was possible. Fortunately with the continuing development of hybrid technology, more efficient and practical vehicles have been created. In the recent years the campaign for global warming has brought the attention of the public.

Hybrid carsare now becoming steadily popular available in different types from compact sedans to SUVs. Environmental issues are not the only reason that has made the public favor hybrid cars. Rising gas prices is also one of the major reasons why people prefer hybrid cars than conventional ones. It’s also practical in suburban environments where you don't really need horsepower but gas mileage.

There are different types of hybrid vehicles. They can vary from the simplest wheelbarrows to ships. No matter what form they are, these vehicles help in reducing greenhouse and noise emissions. Although these vehicles are expensive due to their unique structures, developments will continue to provide more alternatives to the public. These cars may not compare to conventional ones with a 200 horsepower but why would you need that if you only need 20 in the streets?

The simplest hybrid would be the single wheeled vehicles. These are wheelbarrows famously depicted with sails. This can be seen in Chinese sailing carriages.

The next is two wheeled vehicles. These are usually cycle type vehicles. The best example would be the Moped and electric bicycles. They are powered by an electric motor or an internal combustion engine in combination with the rider's muscles. This concept was also used in the 1800's by motorcycles. The electric bicycle can either be a parallel or a series hybrid.

hybrid vehiclesare not just limited to private cars. There are also hybrid power trains used by heavy vehicles. There are diesel or turbo electric buses, railway locomotives, heavy duty vehicles, hydraulic machinery and ships.

In ships a diesel engine drives the electric generator or hydraulic pump which in turn powers one or more hydraulic or electric motors. Sails and engines were early forms of hybrids which may be used again due to rising fuel costs.

More developments are continually being made in hybrid structures and systems for efficiency. Today buying a hybrid car is expensive but it will be beneficial in the long run. It does not just save fuel costs but also removes pollution that can harm the health of the people and take whatever it is left of the environment.

Thursday, May 29, 2008

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