How Does Hybrid Electric Vehicle Work?

How Does Hybrid Electric Vehicle Work?

You probably own a gasoline- or diesel-engine car. You may have heard of electric vehicles too. A hybrid vehicle or hybrid electric vehicle (HEV) is a combination of both. Hybrid vehicles utilize two or more sources of energy for propulsion. In the case of HEVs, a combustion engine and an electric motor are used.

How it works depends on the type of drive train it has. A hybrid vehicle can either have a parallel or series or parallel-series drive train.

Parallel Hybrid

The parallel hybrid car has a gas tank, a combustion engine, transmission, electric motor, and batteries.
A parallel hybrid is designed to run directly from either the combustion engine or the electric motor. It can run using both the engine and the motor.

As a conventional vehicle, the parallel hybrid draws its power from the combustion engine which will then drive the transmission that turns the wheels. If it is using the electric motor, the car draws its power from the batteries. The energy from the batteries will then power the electric motor that drives the transmission and turns the wheel.

Both the combustion engine and the electric motor are used at the same time during quick acceleration, on steep ascend, or when either the engine or the motor needs additional boost.

Since the engine is directly connected to the wheels in a parallel drive train, it eliminates the inefficiency of converting mechanical energy into electrical energy and back. This makes a very effective vehicle to drive on the highway.

Series Hybrid

The series hybrid car also has a gas tank, a combustion engine, transmission, electric motor, and batteries with the addition of the generator. The generator can be the electric motor or it can be another separate component.

The series configuration is the simplest among the 3. The engine is not connected to the transmission rather it is connected to the electric motor. This means that the transmission can be driven only by the electric motor which draws its energy from the battery pack, the engine or the generator.

A hybrid car with a series drive train is more suited for city driving conditions since the engine will not be subjected to the varying speed demands (stop, go, and idle) that contributes to fuel consumption.

Series-Parallel Hybrid

The series-parallel configuration solves the individual problems of the parallel and series hybrid. By combining the 2 designs, the transmission can be directly connected to the engine or can be separated for optimum fuel consumption. The Toyota Prius and the Ford Escape Hybrid use this technology.

How to Conserve More Fuel with Hybrid Cars?

How to Conserve More Fuel with Hybrid Cars?

Most hybrid cars are made for fuel efficiency but you can further squeeze extra miles out of a gallon of gasoline buy adapting the same good driving habits you do in your gasoline-engine vehicles.

1. Go easy on the brakes.

Your hybrid car has the regenerative braking system that recaptures the energy lost from braking and stores it back to your batteries. If you brake slowly, you give your electric motor more time to store power thus, recovering more energy back to the batteries.



If you brake hard and abrupt, the regenerative braking system will not be able to recapture much of this energy and your brakes will take most of the work.

2. Drive at slow speed.

When you drive at a slow speed, you are running the electric motor. This saves a lot of gas. Also high speed driving requires your engine to produce extra power to drive the car forward and push it through the air.

This consumes more gas just to overcome the aerodynamic drag. (Take note: the air is much denser on snowy, rainy, and slushy conditions. This makes the engine consumes more fuel to push the vehicle through the air.)

3. Avoid quick acceleration.

The electric motor can only give your car a certain amount of power. When you require more speed and step on the gas pedal, the combustion engine kicks in to provide that extra speed you need, thus consuming more fuel.



Quick acceleration in gasoline- or diesel-engine car wastes a lot of energy and so with hybrid vehicles. If you need to accelerate, do it gradually if possible.

4. Check your tire pressure.

Tires are made to improve safety and the quality of the ride. It is not actually made for efficiency but you can actually use the tire to significantly improve your gas mileage.

Use and maintain the maximum recommended tire pressure for your car on the sidewall and not the psi supplied by the manufacturer on the doorframe. Also use low-resistance tires for better mileage.

5. Avoid rush hour.

Stop-and-go traffic consumes a lot of gas.

6. Use low octane gasoline.

Not only it is cheaper, vehicles are actually designed to run well on low octane gas. Check your manual.

7. Glide.

If you are comfortable with driving back and forth to neutral, you can get the best out of your speed. Coasting in neutral gives you a longer cruise and better use of energy.

Honda Civic Hybrid

Honda Civic Hybrid

Hybrid technology has come a long way since Toyota released the Prius. Sales substantially picked up in the market prompting other automobile companies to make their own hybrids. Following in the footsteps of Toyota in 1997 Honda made its own hybrid.

The Honda Insight was a moderate success. Although it was a fuel efficient car it had different technology under the hood. The hybrid technology was new at that time and the public perceived the Insight to look to odd to be driven around the city.

Honda then turned to one of its famous compact sedans. The Honda Civic was released in a hybrid version in 2003. The design was pretty much the same with the conventional Honda Civic incorporated with Honda’s own hybrid technology.

Honda Civic Hybrid Technology

The first generation Honda Civic hybrid came out in 2003. It operates with a different hybrid technology compared to the Toyota Prius which is the basic template for all hybrids. Instead of the hybrid synergy system, the Honda Civic hybrid uses an Integrated Motor Assist system that was also used in the Insight.
The first generation was produced from 2003 to 2005.



 It has a 1.3 liter lean burn internal combustion engine with Honda’s VTEC cylinder cut-off system. This allows 3 cylinders to stop operating while decelerating which reduces friction losses. This in turn creates a more effective way of regenerating energy.

It has a 15 kW permanent magnet motor which also serves a generator for recharging the batteries. It also has a 120 V nickel metal hydride battery, 5 speed manual transmission, regenerative braking, electric power steering, and low rolling resistance tires.

The second generation was also equipped with the same thing with a few changes. A high profile camshaft was added, fourth generation Integrated Motor Assist and third stage VTEC and Variable Cylinder
Management replaced the previous ones.

It has a satellite-linked navigation system and an audio system that supports mp3 and WMA. It also comes in with an average fuel consumption regulator. An idle stop feature automatically shuts off the engine in idle periods.

The second generation was also an improvement from the first one which used lean burn engine.
Honda has stopped producing Civic hybrids to replace them with smaller and affordable types to compete with Toyota.

Nonetheless previous the second generation proved to be a worthy competitor to the Prius. Although they may differ in terms of technology, fuel efficiency was still attained.

History of Modern Transportation

History of Modern Transportation

People may be surprised to know that the idea of electric and hybrid vehicles have been present even before the gasoline engine was invented. A lot of people with their brilliant ideas revolutionized modern transportation as it is today. With the rise of health-threatening pollutants, new age electric and hybrid vehicles are truly becoming a reality.

When Electric Cars Ruled the World

Robert Anderson from Scotland created the first electric carriage during the 1830s. Professor Stratingh of Groningen from Holland designed a simple electric car. Christopher Becker was Stratingh’s assistant who built the model in 1835.

In 1842, Thomas Davenport from the United States and Robert Davidson from Scotland built more advanced electric vehicles with the use of non-rechargeable electric cells. Gaston Plante from France improved the storage battery and created a better model in 1865. Sixteen years later, Camille Faure continued to improve the storage battery.

During the late 1800s, several European nations like Great Britain and France began the spread of electric vehicles while constantly innovating for better design and performance. Electric cars did not need gear changes. The United States followed with the creation of electric tricycles.

At the turn of the century, electric cars were selling better compared to their gasoline engine counterparts due to less vibration, noise and pollutants. In 1916, Woods invented the first hybrid consisting of an electric motor and combustion engine.

The cost of electric vehicles was somewhat expensive so only the people belonging in the upper class were able to afford them. Prices would reach $2,000 to $3,000 depending on the interior and materials used.

Production peak for electric vehicles were from 1910 to 1912. During the 1920s, road systems were significantly improved so people needed vehicles that traveled farther than electric cars.

The price of gasoline also decreased making it more affordable for everyone. Charles Kettering invented the electric starter for gasoline cars taking away the tedious hand crank. Henry Ford and his idea of mass production at lower costs continued to reduce the popularity of electric cars. Gasoline cars at this point were only about one-third the price of an electric vehicle.

Decline and Regrowth

From 1935 to 1960, electric vehicles were slowly fading from the scene. However, people began looking for alternative fueled vehicles in order to solve problems on pollution and the growing price of gasoline. More practical models of electric vehicles were proposed.

A number of actions were also imposed in the United States and across the globe to exert effort in improving electric vehicles.

Some great works were the U.S. 1990 Clean Air Act Amendment as well as the U.S. 1992 Energy Policy Act. Other states required vehicles to have zero emission. Some of the largest automobile manufacturers as well as the U.S. Department of Energy collaborated to start making hybrids. Mileage, speed and performance were greatly enhanced in these newer models.

Recent electric and hybrid models are able to generate energy through special energy-converting systems. Hybrid models had special dual engines running on both gasoline and electricity which helped conserve a lot of fuel aside from being environmentally friendly.

Sedans, SUVs and trucks were quickly built using the newly discovered technology. The method of running on electricity had various approaches but the main idea of being conservative and green was present in all models.

Hybrids: The Pollution Solution

Gasoline engines were proven to be reliable and powerful. However, the constant burning of gasoline released a variety of harmful gases like carbon dioxide, carbon monoxide, hydrocarbons and nitrogen oxide. These are also known as greenhouse gases which trap heat in the atmosphere instead of allowing it to go out into space. The result would be global warming wherein surface air temperatures and sub-surface temperatures in the ocean would rise.

Although there are also natural causes to global warming, vehicle emission significantly multiplies the rate spurring the creation of alternative fuel sources. Electric and hybrid vehicles have shown to be very promising in reducing the greenhouse effect.

Pollution will be minimized greatly if more and more people will start relying on these newer models which do not emit any harmful gas at all. These vehicles are also very economical since there is no longer a need for crude oil which constantly is growing in price.

Hybrid Car Features

Features You may Want for Your Hybrid Car

Hybrid cars were 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 braking system. In conventional gasoline-powered cars, all the kinetic energy (energy in motion) is lost and wasted during braking. Hybrid cars recapture 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 cars automatically 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 cars are 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.