Crude oil prices on the world market is now increasingly expensive, this is due to many things, among others, the less the world's oil reserves. Though the majority of transportation using oil as the main source of producing energy. So the cost to buy fuel feels heavier.
Some of the world's leading automobile manufacturers began to think about combining petroleum-fueled engine with the engine that fueled other than fossil fuels. Vehicles such as this so-called hybrid cars.
Real basic vehicle is referred to as hybrid car if the vehicles combine two or more sources of energy. So actually a lot of people who have a hybrid vehicle in this context. For example, mo-ped (motorcycle pedal bike) has a hybrid character, because it combines the power of gasoline engines and power pedal rider. Essentially every vehicle combine two or more sources of propulsion, whether directly or not is a hybrid.
Test results showed that the hybrid engine significantly improved fuel efficiency and reduce exhaust emissions. To be useful for us, a car must have at least three minimum standards, that is at least able to travel 482 miles before re-fueling, easy and quick refueling, and always alert to face any traffic situation. Petrol car capable of meeting these standards, but still produces a relatively greater pollution and likely wasteful of fuel.
In addition to using smaller engines and more efficient, hybrid cars currently use many other tricks to
improve efficiency. To suppress the consumption of gasoline per mileage, a hybrid car make:
-The recovery of energy and store it into the battery.
-alternative energy. For example when a car stopped at a red light.
- Use advanced aerodynamics to reduce pressure.
- Use low-rolling resistance tires.
- Using lightweight materials....