K1 Attack Hybrid

Planning to go green and buy a hybrid? Is it fuel efficient? What is the average range that the electric motor can cover before the gasoline engine kicks in? Check the gas mileage and engine size to determine if the hybrid vehicle you are getting can truly help you save more. Some hybrid vehicles are very mild in which a minor technology may only be incorporated. Saving even 1 to 2 gallons of fuel a day more can be quite cost-effective.

Is it environmentally friendly? Check the emission of the vehicle. Hybrids should have very low or zero emission which minimizes the risk of exhausting greenhouse gases into the atmosphere. There are various sources of power available which reduce pollutants like fuel cells, hydrogen and electricity.

Check the interior and exterior of the hybrid vehicle just as you would when buying a conventional one. Determine if the size is right for your or your family, determine the quality of the materials used if the overall structure is safe for highway driving and compare the advantages and key features with other models. Some hybrids don’t look as stylish as gas models but there are also hybrids that look exactly like their conventional counterparts.

The initial sum of buying a hybrid vehicle is usually higher compared to conventional cars. The United States Federal government provides significant tax breaks to individuals who opt for hybrid vehicles. The tax break will depend on the tax bracket once the buyer sends a file. There are states that provide special parking areas as well for hybrid vehicles so drivers get to save more on parking fees. Some insurance policies may provide special offers to owners of hybrids on repair and maintenance too.

There are SULEVs or super ultra low-emission vehicles, ULEVs or ultra low-emission vehicles and PZEVs or partial zero emission vehicles that are very clean and quiet. Drivers get to enjoy smooth and peaceful driving without the environmental hazards and risks.

Saab Salomon Hybrid Concept Car

Hybrid vehicles come in many forms today and also operate through various means and mechanisms. Here are some guidelines which will help you select the right one.

What Technologies are Available?

1. Idle-off capability is when the engine automatically shuts down when the hybrid vehicle is braking, idling or coasting. The engine can also easily turn back on once the driver releases the brake and steps on the accelerator.

2. Regenerative braking is when the electric motor takes over when the car is slowing down. It also doubles as a generator in which energy lost while the hybrid vehicle is braking can be converted into electric power that recharges the battery.

3. Power assist and engine downsizing is when the electric motor kicks in to help move the car during acceleration. The size of the engine is virtually smaller since both the electric motor and engine combine in providing power.

4. Electric-only is when the electric motor solely provides power for the vehicle when running at low speeds or when starting.

5. Extended battery-electric range is when the electric motor can provide power for the vehicle when running over a distance of 20 to 60 miles. Afterwards, the battery can easily be recharged by plugging into an external electric power source. The gasoline engine kicks in after the range has been covered by the electric motor.

Learn how to define the type of hybrid vehicle you are getting. Mild hybrids use the first three technologies mentioned earlier while full hybrids use the first four. There are also plug-in hybrid vehicles that use all five but are not yet available to the general public.

There are muscle hybrids that come in the form of SUVs which are more cost-effective and environmentally friendly compared to their conventional counterparts. Some hybrid vehicles may use only one or two technologies but still aim to improve mileage and ecological effects.

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Rated to run from 20 mpg to 60 mpg, hybrid cars are designed for maximum fuel economy. But aside from its second source of power, what other factors can influence gas mileage?

Here are those factors:

Size of the engine. Hybrid solves it by putting a small engine with an electric motor. Moreover, small engine has small cylinders that consume less fuel both at stop and while cruising. This makes hybrid cars more fuel efficient. Hybrid car engines are smaller and are significantly lighter, thus reducing the total weight of the car.

Driving condition (with respect to the hybrid car’s internal structure). A hybrid car can either be parallel or series. With a parallel drive train, the car runs more fuel efficient on the highway. Series hybrids on the other hand work well in stop-and-go traffic.

Car Design/Aerodynamics. When driving at high speeds, the car’s engine works more because it has to push the car through the air. This is called aerodynamic drag. Hybrid cars work well both at slow and high speed because it’s design to cut through air that reduces the drag, thus increasing fuel economy. Low-rolling resistance tires, which are stiffer and inflated to higher pressure can further cut the drag and increase the fuel mileage of the car.

Vehicle Weight. When the car is heavy, the engine has to inject more fuel to the cylinder in order to push it forward. So in order to increase fuel economy, hybrid cars are made with lighter materials such as magnesium and aluminum or composite materials like carbon fiber.

Driving habits. Whether you are driving a hybrid or not, driving habits can definitely influence the gas mileage of your car. Hard braking and abrupt acceleration wastes a lot of energy. Abrupt acceleration on the other hand requires more power from both the electric motor and the combustion engine which equates to more fuel consumption.  To increase gas mileage, anticipate braking distance, step on the brake softly, and accelerate gently.

Gas Mieage Indicator

By:  Lestari

Hydrogen Gasoline Internal Combustion Engine

Although environmental issues are recognized, they are not given that much attention on a wider scale. Now, more and more people are becoming aware of how much mankind has affected the planet. The need for solutions is recognized more than ever to address environmental issues.

The shift from conventional cars is not just because of environmental concerns but also due to soaring gas prices. Hybrid vehicles bridge the gap between using an SUV and caring for the environment. There have been lots of improvements in the hybrid technology as the millennium came and it will be just a matter of time before it dominates the fuel dependent dominated automobile industry.

The hybrid vehicle drive train

Hybrids come in different types depending on their structures. Although they may differ in some aspects all of them are made with the same purpose. These vehicles are designed to reduce fuel consumption, reduce pollution and noise emissions and provide an alternative for customers.

They come in three structures. The parallel hybrid system has a diesel engine and an electric motor that is connected to a mechanical transmission. A large electrical generator and a motor are combined to replace the starter motor and the alternator.

A series hybrid system has a similar design with a electric battery vehicle. It is also referred to as the Range Extended Electric Vehicle. The difference is the diesel engine drives the electric generator instead of the vehicle’s wheels. The electric generator in turn charges the battery and powers the electric motor which propels the vehicle. A super capacitor or a flywheel can be added to recapture braking energy which reduces the losses in the battery.

The combined hybrid system, as it names suggests is a combination of the parallel and the series system. It is incorporated with power split devices so that the power paths placed from the engine to the wheels can be either electrical or mechanical. This is done to decouple the power supplied by the diesel engine from the power needed by the driver.

If a consumer wishes to convert his or her vehicle aftermarket kits are available. The owner has the option of buying a glider and a hybrid or an electric motor from the automaker. He or she will then receive the vehicle installed with the hybrid drive train structure.

]]> http://hybridcar1.com/structures/feed/ http://hybridcar1.com/combustion-engine/ http://hybridcar1.com/combustion-engine/#comments Sat, 30 May 2009 16:12:08 +0000 admin http://hybridcar1.com/?p=409 The Internal Combustion Engine

By:  Lestari

BMW Hydrogen Engine

The engines in vehicles is a rather broad but interesting subject. People may be amazed to know that the ones currently in use today were drawn on several hundreds of blueprints before they were distributed to the market. The present models are the result of over a century worth of brainstorming and experience and will further influence the models of the future.

What is the ICE?

ICE stands for internal combustion engine wherein the combustion of fuel and an oxidizer occurs. The combustion chamber is the space where everything happens causing an exothermic reaction that produces gas at a high pressure and temperature. The expanding hot gases will directly put pressure on solid engine parts causing them to move. Pistons, rotors or the engine itself then begins movement which propels the entire vehicle.

The very first models of the ICE ran on an air/fuel mixture rather than compression. The initial part of the intake stroke sucks or blows in the mixture. Modern ICEs already incorporates in-cylinder compression. The engines were used in a variety of methods and industries like generators, boats, aircrafts and most particularly, automobiles.

The Operation

The internal combustion engine operates using a four-stroke cycle or the Otto cycle. The cycle involves four phases namely: induction, compression, power and exhaust. All of these aim to create an exothermic chemical process to start vehicle propulsion. During induction, oxygen or other oxidizers are introduced into the cylinder to act with the fuel. Compression then begins as the gases start a reaction that continuously increase temperature and pressure within the cylinder.

When enough pressure is applied on the corresponding engine parts, the engine begins to gain power through movement coming from direct force application. The aftermath of the entire compression process will lead to exhaustion of byproducts like carbon monoxide, carbon dioxide and nitrogen wastes. These gases are freely emitted into the atmosphere. The combustion process is started through engine ignition using the spark ignition method or the compression ignition system.

FCX Clarity

All of us cannot tolerate the continuing rise in gas prices. Customers today are looking for alternatives to save on fuel costs. Fortunately hybrid vehicles have given us the option to save gas and help the environment. Hybrids are no longer restricted to a conventional 4 door sedan. Hybrid SUVs are also out on the market today to meet the demands of the customers.

Ever since the Toyota Prius came out, other automobile companies have devoted their research in developing their own hybrid technology. Ford and Honda have their own hybrid system incorporated into new models. Hybrid vehicles are expensive for now but development in the future will make them more accessible and affordable for the general public. The technology is still going through development to be able to compete with the fuel dominated automobile industry.

Different Types of Hybrids

Hybrids have different types. Their structures may differ in some ways but generally they have a rechargeable battery on board or an electric motor that works with an internal combustion engine to move the vehicle. In other vehicles they can operate a rechargeable battery alone but there are many limitations to this type which has prevented it from being widely manufactured. These vehicles are primarily moved by an electric motor and only use the diesel engine for high speeds.

There are different degrees of hybridization. Full or strong hybrids that can run just by using an engine, its batteries are a combination of both. Examples of this are the Toyota Prius and Ford Escape. These two vehicles can move by battery power alone and be assisted by their diesel engines when needed.

Power assist hybrid uses its engine for primary power, coupled with an electric motor to boost torque. The electric motor is connected to a power train and is mounted between the engine and the transmission.

Mild hybrids are conventional vehicles with huge starter motors. This allows the engine to be turned off during idle periods and coasting but still enable the vehicle to start quickly. Most people do not consider this type to be a hybrid but it can still save fuel costs. It’s just not as efficient as full hybrids.

Hybrid vehicles are perfect for suburban environments where there is a lot of traffic. If you really look at it the most important is not horsepower but gas mileage.

By:  Lestari

Gasoline

There are electric/gasoline-type systems that use a combination of lead-acid battery plus an induction coil to create a high-voltage electrical spark. The spark will then ignite the mix of air and fuel within the cylinder. The battery is rechargeable even during operation through an alternator or generator driven by the engine itself. Gasoline engines get an air and gasoline mixture to be compressed to less than 185 psi. The spark plug ignites the mixture during compression within the cylinder.

As for diesel engines, these require only heat and pressure produced by the engine during the compression process for ignition. Diesel compression is approximately three times higher compared to a gasoline engine. Diesel engines use air only. Some diesel fuel is sprayed into the cylinder with the use of a fuel injector just before peak compression to start ignition immediately. HCCI engines also require only heat and pressure but take in air and fuel. This process makes diesel and HCCI engines more prone to cold starts.

The Polluting Effects

Combustion products or the hot gases ignited and burnt inside the engine will have higher amounts of energy compared to the compressed fuel and air mixture. After available energy are used up to drive the engine pistons, remaining combustion products will be vented or exhausted through a valve or the exhaust outlet to bring back the piston in its original state also called TDC. Any heat which is not used up will become a waste product due to be removed from the engine via a liquid or air cooling system.

Air pollution emissions then result from incomplete combustion of carbonaceous fuel. Examples of engine byproducts are carbon monoxide, soot, nitrogen wastes, sulfur and uncombusted hydrocarbons. These also result if the products did not operate near the stoichiometric ratio required for effective combustion. The fuel would not have burnt very well due to factors like cool cylinder walls or lack of air. This is also known as quenching of the flame.

Both gasoline and diesel engines emit harmful gases that can be dangerous to humans as well as the environment. The greenhouse gases start trapping hot air within the atmosphere instead of allowing them to exit to space leading to global warming. The rise of the ICE or internal combustion engine finally showed its major flaw which is pollution.

By:  Lestari

Nissan Altima

Honda Accord Hybrid, Toyota Camry, Lexus GS 450h, and the Nissan Altima Hybrid  are 4 competing midsize hybrid electric vehicles on the market:

Honda Accord Hybrid. Even before the release of the Hybrid, the Honda Accord was the second best selling car in the country. But the Accord Hybrid did not live up to the title “best-seller”. After soaring success in 2005, car sales plummeted when its rival the Toyota Camry Hybrid hit the market. In 2007, the hybrid version of the Accord was discontinued.

However, buying an Accord Hybrid will give you a good 30mpg/37mpg fuel rating. Accord is run by a powerful 3.0 L engine that produces 240-hp and 232 lb.-ft at 5000 RPM of torque. The electric motor is 16-hp with 100 lb.-ft at 840 rpm of torque. The sticker price of the Honda Accord Hybrid is approx. $30,000. You cannot buy a brand new Accord Hybrid from Honda but that’s not the only place where you can buy a car, right?

Toyota Camry Hybrid. Camry is known for its comfort, safety, and dependability. And surely, these characteristics are carried out with the Toyota Camry Hybrid. Powered by 2.4-liter four-cylinder gasoline engine and 105-kW electric motor and 244-volt battery pack, the Camry can deliver a total of 192 horsepower. It promises to run 33mpg in the city and 34mpg on the highway.

2009 Lexus GS 450h Hybrid

Lexus GS 450h. This hybrid has 24-valve, 3.5-liter gasoline engine that produces 297-hp. That’s just the half of it. The electric motor-generator produces 197 hp giving the driver of this car the power and sheer adrenaline rush. But don’t be fooled, the Lexus GS 450h may perform like a sports car but it definitely has the luxury features you want in a midsize car. And why not? At the price of $55,000, you surely have to set high expectations.

Nissan Altima Hybrid. It is powered by a large 2.5-liter engine that produces 198 horsepower and 162 lb.-ft at 2800 RPM of torque. The Altima is only available in selected states including Vermont, Rhode Island, New York, New Jersey, Massachusetts, Maine, Connecticut, and California. Fuel economy is impressive considering the size of the engine. It is rated at 35mpg/33mpg and priced at approx. $25,100.

By:  Lestari

2010 BMW Mercedes-Benz S300 S-Class

Although there have been incessant campaigns in global warming many of us don’t really pay attention to pollution emitting out of our car’s exhaust pipe’s. That was until gas prices started to soar and people were desperate for alternatives. Hybrid technology was new and misunderstood in the past. Visions of weird boxes on wheels came to mind. That was until the Toyota Prius came out in 1997.

The first hybrid car did not look out of this world or too space age for the common person’s taste. It was just a conventional looking car that saved on gas. The hybrid technology spread slowly. Sales from the Prius and Insight were moderate. Nonetheless, the public supported the technology which led to further improvements. The Ford Escape hybrid filled the gap between looking good and doing well. It had style and practicality which became the cue for luxury hybrid cars to add to the market.

Although hybrid cars are a good choice for today, is it really worth spending a lot of money to save the environment? And how do you know which to buy amid the slew of eye candy hybrids?

Why and what hybrid to buy

Hybrids run on electric power though their motors. These motors also serve as generators that recharge batteries on board to power them for mileage. This enables the vehicle to use less fuel which leads to lower costs and reduced emissions. The internal combustion engine serves as a back up for more power at high speeds. A computer determines which and how much power will be used from the motor and the engine.

Hybrids recharge through regenerative breaking. They are perfect for driving in the city where stop and go driving is common. In the city drivers don’t really need a lot of horsepower.

Other motor companies have made hybrids to add to their credentials. If you really want to be practical a compact four door sedan will do well for you instead of a hybrid SUV that cost twice as much. Luxury hybrids may do well in the long run by saving gas but spending more than $60,000 on a practical car defeats its purpose.

If you want to go green, go simple. In reality you don’t need to drive a 200 horsepower vehicle.

Learn the Issues of Hybrid Car

By:  Lestari

Mercedes Hybrid

One of reason of people want to buy a hybrid car is the price. Buying a hybrid car can cost several thousand dollars more than its gasoline-engine counterpart. The cheapest hybrid is around $20,000 while the luxury models are well over $100,000. It is predicted that the cost of hybrid vehicles will go down in the coming years as the production cost will decrease and the supply will increase.

Fuel Economy. A hybrid car is known for fuel economy. In fact, if you drive a hybrid, you can save as much as 60% on fuel. A fuel-efficient hybrid car can run from 35 to 50 miles on a gallon. However, high end hybrid models such as Chevrolet Tahoe Hybrid and those from Lexus that are built for performance still offer relatively good fuel economy.

Vehicle Option. Hybrid car models are very limited today. If you can’t live by the available options, you can wait a year or two as many manufacturers have announced the release of newer hybrid cars.

Maintenance Cost. With a more complicated internal structure, the common belief is that hybrid cars are more expensive to maintain. The fact is, maintenance cost for hybrid cars is comparable to conventional vehicles. Many also fear that the battery replacement is very expensive. While the cost of battery replacement is said to be between $2,000 and $5,000, there has yet to be a report of a battery needing to be replaced due to defect or malfunction.

Safety. Hybrid cars are in general, as safe as conventional cars but there is a concern that electric shock can happen. This is a possibility but hybrid cars have been around for 10 years and there are no reports of this incident.

Luxury and Convenience. Since the price of a hybrid car is 25% to 50% higher than its gasoline counterparts, most hybrids are upscale and involve the latest gadgetry and luxury amenities.

Interior Space. Hybrid has almost become synonymous with the Toyota Prius and Honda Insight. As a result the word “hybrid” is perceived as cars with small interior space and the use of electric motors and gasoline engines. While the latter is true, the former is not entirely accurate.

Since the first release of the Prius, the market has seen several hybrid cars with more interior space. The Honda has Civic and Accord (discontinued) have a good interior space. So with Toyota’s Camry, Highlander (SUV), and second generation Prius (midsize), Ford Escape hybrid, Mercury Mariner Hybrid, and Chevrolet Tahoe Hybrid among others.