When there are two or even more sources to switch on a car, then that vehicle is recognized as a hybrid car A combustion engine and most one electric motor is combined to generate a Hybrid Electric Vehicle, most popularly phrase as HEVs

Turbo-electric diesel and electric railway locomotives are being implemented in hybrid power trains that may provide heavy transportation like portable hydraulic machinery along with large ships A diesel engine produces a kind of energy causing driving an electrical generator or a hydraulic piston or pump which in series operates more than one electrical motors Delivering power through pipes or other way than motorized power, particularly if various drives to become driven for instance wheels This creates the power loss throughout the double conversion from naturally diesel fuel to electricity then to power a hydraulic or a power motor

The power losses while converting the power decreases while using size and possesses been observed that bigger cars or vehicles convey more advantages than their disadvantages With large vehicles there exists a must store the power, but unfortunately up till today, besides non nuclear submarines, there's no such comprehensive system to store energy in large vehicles.

Early hybrid cars systems were being investigated for heavy trucks as well as other highway vehicles with some equipped trucks and buses that began to come into consumption The major obstacles appear to be smaller sizes of fleet and the additional costs of hybrid car and vehicle system are until now compensated for by fuel savingsThe prices of oil have highlighted the significance of such system Advances in technological development and reduced battery cost with higher capacity etc. flourishing hybrid car industry and it's also already filtering into the usage of truck by Toyota, GM, Ford and others manufacture Ken-worth Company has launched its new Ken-worth T270 hybrid system truck which is commercially launch to overcome the roads of city. Many companies are hiring such truck for delivery purposes for example FedEx has invested to use this cheap yet efficient technology to create profits

The hybrid method is more efficient, economic and fewer polluted compared to the diesel or petrol fuel cars with inner combustion engine. There are three elements of hybrid design which actually achieves savings. One of the major properties with the design of the hybrid car or a car is the fact that it relies on electric motors and engine at peak points during the power needs A lower weight and smaller engine creates less internal losses. Additionally, it has a major battery storage capability to store and reprocess recaptured energy The greatest advantage of fractional treatments could be the recycling of their energy, it may regenerate the energy during the braking stage in the form of heat. It's very efficient and green process. The regenerative braking minimizes vehicle speed by converting its kinetic energy to electricity, based upon the ability evaluation with the generator/motor.