Hybrid Car Meaning & Working Explained:
A hybrid vehicle is a vehicle that uses two or more distinct power sources to run. Ordinarily, the vehicle which we use daily derives the power from only one source i.e. an IC engine which runs on Petrol or Diesel.
But, in case of a hybrid vehicle, in addition to the IC engine, there is an electric battery which is capable of supplying power to run the vehicle. Hence, such vehicles are called ‘Hybrid vehicles’. An internal combustion engine used in a hybrid vehicle may either run on Petrol or Diesel fuel.
Main components of a Hybrid vehicle:
- An internal combustion engine (i.e. Petrol engine / Diesel engine): In most of the hybrid vehicles, IC engine acts as the main source of power.
- Electric motor: It transforms the electric energy stored in a battery into mechanical energy i.e. it drives wheels with the help of electricity stored in a battery.
- Electric battery: Its function is to store electric energy and supply it whenever necessary.
- Inverter: Electricity stored in an electric battery is in the form of Direct Current (DC) while the majority of the motors used in the present day hybrid vehicles require Alternating Current (AC) to run. So, an Inverter performs the function of converting the DC from the battery to AC for the motor.
- Electric Generator (Exclusive for series & series-parallel hybrids): The function of a generator is to produce electricity when driven by an external power source. Series hybrids use this component where an IC engine drives a generator to produce electricity which then charges the battery.
- Control Module: It is the most important component of the hybrid vehicle. It controls the entire operation of the vehicle by synchronizing all the power sources employed.
Classification of Hybrids:
Hybrids are mainly classified based on the following criteria:
- The structure of drive-train
- The degree of hybridization
Depending upon the structure of drivetrain, hybrid vehicles are further classified as:
1.1 Series Hybrid:
In this type of hybrid vehicle, wheels are powered only by an Electric motor which ultimately derives its power from the electric battery. The IC engine installed in the vehicle does not supply power to wheels directly. So, these vehicles need large capacity batteries.
The series hybrid vehicle is more efficient in low-speed driving involving frequent start-stop.