Toyota Hybrid System

 

Hybrid system is basically combines two propulsion of conventional engine and electric motor. How it works in turns and simultaneously makes  the engine as a generator.
At Toyota Hybrid System (THS) is known two systems namely Parallel and Series. Each shows the structure of the relationship between the engines with the electric motor used.

Hybrid system components in Toyota include:
Battery
One important component that serves to supply and store energy. Toyota has developed efficient and lightweight battery technology. This is achieved thanks to the use of nickel hydride material (Ni-MH).
The cooling system in the battery cell has also been optimized. The use of semiconductor technology also has an important role in the operation of hybrids. For that matter Toyota has improved battery efficiency by adopting silicon carbide (SiC).

Machine
Type of gasoline engine or gasoline used in Toyota hybrid technology claimed to be more energy efficient. Moreover, it can produce higher output than similar conventional machines.
Various developments to improve engine performance continue to be done to achieve a new mechanism that more fuel efficient with no maximum power.

Electric motor
This component is one of the main things in hybrid cars. Toyota uses an efficient electric motor, can produce strong torque up to the range of revolution (rpm) high. Its form is more compact, lightweight, efficient, and smooth.
The component uses electric current in a 3-phase system, capable of optimum control of magnetic rotation with magnetic rotor having an ideal structure of configuration V.

Power Control Unit (PCU)
This tool is to divide and distribute electric power generated by the engine to the drive train. The PCU consists of an inverter to convert DC current into AC provided by the battery to turn on the electric motor.
Instead, the inverter will also convert the AC generated by the electric motor and generator into DC to recharge the battery. Another element of this PCU is the boosting converter. Its function is to increase the normal voltage or power of 201.6 V at DC supply to 650 V for electric motors.
Then DC converter to reduce the voltage of 201.6 V supply from battery to 12 V voltage for the use of support systems and electronic devices such as ECU.

Power Split Device
The device adjusts the rotation of the shaft directly to the engine and connected to the electric motor.

Reduction Gear
Its function is to reduce the high rpm of the electric motor to give effect to the torque so as to provide a smooth acceleration on the vehicle.

Generator
THS uses a high speed generator to generate maximum power. Aims to keep pace with engine speed when vehicle speed is low and medium.

Regenerative Breaking
This system utilizes brake heat or at a rate reduction (deceleration) which allows the use of rotational forces of the shaft. The energy generated is stored in the battery. This system can save the use of gas or gasoline.