1. Engine: The engine is the power source of the car. It converts the chemical energy stored in fuel (petrol, diesel, etc.) into mechanical energy. When you turn the ignition key, the engine starts, and the pistons move up and down inside the cylinders, compressing and igniting the fuel mixture to create power.
2. Transmission: The transmission is a set of gears that allows the engine's power to be transferred to the wheels at different speeds. It contains multiple gear ratios, which can be selected by the driver to control the car's speed and acceleration.
3. Driveshaft: The driveshaft is a cylindrical shaft that connects the transmission to the differential. It rotates along with the transmission and transmits power from the transmission to the differential.
4. Differential: The differential is a set of gears located at the rear (or front) of the car that allows the wheels on each side of the vehicle to rotate at different speeds when cornering. This is essential for smooth and safe turns.
5. Wheels: The wheels are the circular components at the corners of the car that make contact with the ground. They are connected to the differential and rotate when the differential rotates. The tires mounted on the wheels provide traction, allowing the car to move and roll on the road surface.
When you press the accelerator pedal, you control the amount of fuel that is sent to the engine. The more fuel that is sent, the faster the engine runs, and the more power it produces. The transmission then selects the appropriate gear ratio, and the power from the engine is transmitted through the driveshaft and differential to the wheels. As the wheels rotate, they push against the ground, propelling the car forward.
Other components such as the steering system, suspension, and braking system also play crucial roles in the car's ability to move, turn, and stop effectively and safely.