Owning a Porsche vehicle may come with a sense of pride, but have you ever tried to know what drives this masterpiece? Basically, a car’s engine sucks in air and combust fuel with that. For starting the combustion process, the engine needs to turn over, else there will be no air to combust. And if there is no air, the engine won’t start up. To solve this issue, the starter motor was invented. The best way to understand the functioning of a starter is to take an example of motorbike kick-starting. In this case, a small electric component is responsible for kicking the engine into gear.
How Does It Function?
The moment you turn on the ignition in your Porsche car, the vehicle undergoes a certain mechanism that can be explained in 5 steps. Enlisted below are these stepwise actions taken by the part operating that particular step.
A signal is instantly transmitted to the car battery, when you turn on the car key. On receiving the signal, the car battery operates the triggering switch, thus facilitating energy transfer to the starter solenoid, from the battery. When the battery is dead, you can still run the car, but there is no way you can start the engine, once its dead.
Electrical Signal To Starter Solenoid
The car battery sends a small electrical current to the starter solenoid, which is positioned above the starter motor. A large magnitude of electrical current is relayed into the starter motor, when a pair of heavy contact closes within the solenoid. No starter motor can operate without a starter solenoid.
Switching On The Starter Motor
Once the electrical current is sent to the starter motor to the solenoid, it triggers the electromagnet placed inside the started motor. This leads to the creation of a magnetic field, which is responsible for operating the pinion gear.
The pinion gear is forced out of the starter, once the electromagnet is turned on, and the gear senses the magnetic field. Think of a miniature, tiny gear of a bike. It comes out of the starter and fits into a comparatively larger flywheel.
Flywheel is the starting point of the engine getting geared up. It is basically an energy storage unit required for smooth running of the engine when there is no acceleration or when in neutral. Operated by the pinion gear, this large mechanical gear is connected to the crankshaft. The gear starts turning over and operating the pistons, once the flywheel is started by the pinion gear. Air is dragged into the engine, with the pistons moving up and down. Fuel is fed to the engine, when the ECU (Engine Computer Unit) detects air moving into the combustion chamber. This results in the onset of the combustion process, which in turn starts the engine.
Crankshaft is an imperative part of the engine that is connected to the flywheel. It is generally referred to as the ‘crank’. When into rotation, the crankshaft is responsible for changing the up and down movement of the pistons.