Hybrid Transmission

What is hybrid transmission?

Hybrid transmission, also known as dedicated hybrid transmission, is a motion driving system that is usually seen in an automobile. It is a combination of the gasoline powered and electric powered car, which means that both gasoline and electricity are available in driving the engine or motor so as to accelerate a car.

The hybrid transmission system can not only fuse the advantages of both types of motion driving sources, which are gasoline and the electricity, but also compensate for the shortages that each of them may have when it comes to power supply for the cars.

In addition to the design of the appearance on a car, which can be seen from the exterior, the structure inside the transmission system can be regarded as the most significant part in the interior of a car. 

Although this system is invisible unless the car is disassembled when it needs to be repaired, it plays a vital role as to whether the structure of it is arranged well or not determines how well the car performs when it is driven on the roads.

For the traditional types of cars, there can be either gasoline powered or electric powered, which utilize gasoline as the fuel or several batteries as the media to provide energy that drives the engine.

With the gradual progress of the inventions on cars, achieving the optimal efficiency with the minimum costs is what the manufacturers have been looking forward to. In order to deal with the problem of the pollution that may be caused when the gasoline is consumed, or the limited mileage that the electric powered cars are attainable, the hybrid transmission appears and is in charge of the motion driving system on most of the cars nowadays.


How is power transmitted in a car?

Gasoline powered
The gasoline powered cars apply gasoline as the fuel, which is transmitted from the fuel tank to the engine, and allows the energy to be delivered from the engine to the wheels on the cars.

 Electric powered
On the electric powered cars, it is the batteries that provide electric energy to the electric motor, and then the motor delivers the kinetic energy to the wheels, so that the cars can be accelerated.

● Gasoline-electric powered
The gasoline-electric powered cars, as the name implies, apply both gasoline and electricity in the motion transmission, which refers to the hybrid transmission. In this type of system, both the gasoline engine and the electric motor are equipped, which result in the improved flexibility in whether the gasoline or the electricity is used to drive a car.


What elements are required in a hybrid transmission?

In the hybrid transmission system, either gasoline or electricity can be adopted as the power source, so that the composition of this type of transmission would be more complex, as it covers what the gasoline powered and electric powered cars would be equipped with.

 Fuel tank
The fuel tank is the space that stores gasoline, in order to provide this medium for the engine when it is necessary.

● Gasoline engine
The gasoline engine performs the same way as in the gasoline powered cars, which receives gasoline from the fuel tank and is turned so as to drive the wheels through the transmission equipment.

 Batteries
The batteries are used when the electric powered mode is on. They provide electricity to the electric motor, and allow for the transmission of energy in the following procedures.

● Electric motor
The electric motor is turned as it receives the electricity from the batteries, and then it transmits the energy to the wheels as what the gasoline engine does.

● Transmission equipment
The transmission equipment connects the routes from the power supply to the wheels, which plays the role in the delivering of energy for the purpose of driving a car.

● Generator
The generator is used to either charge the batteries or generate the electricity of the batteries for the electric motor, and is only in use in the series hybrid form of transmission system, which would be discussed in the following paragraphs.


What types of hybrid transmissions are there?

Depending on whether the gasoline engine is directly used for the transmission of energy from the system to the wheels on a car, these transmissions can be differentiated into parallel and series hybrid transmissions.

● Parallel hybrid transmission
In this type of transmission, there is a controller that determines when to deliver gasoline from the fuel tank to the engine, or to transmit electricity from the batteries to the electric motor. In other words, gasoline and electricity work together in the parallel hybrid transmission.

● Series hybrid transmission
If the series hybrid transmission is rather adopted, only the electric motor acts as the source of power supply. As for the gasoline engine, it is used only when the generator has to be powered to charge the batteries, which means the gasoline engine indirectly offers the power source in this type of transmission.

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