How the engine regulates power generation

The car's generator is directly driven by the engine, and the engine speed fluctuates greatly. From a few hundred revolutions to nearly ten thousand revolutions is basically possible. Recently updated
Of course, the generator must have a regulation mechanism to ensure electrical output and medical certification. But when you step on the accelerator, the voltage will soar and the car's circuit will instantly paralyze.
How to adjust the power generation?
The answer is to adjust the strength of the generator's magnetic field. As mentioned in junior high school physics, generators rely on coils to cut magnetic induction lines to generate electricity. The faster the cutting speed (rotation speed), the higher the magnetic field strength and the higher the voltage. We can't adjust the speed, but we can only adjust the magnetic field strength. When the output voltage of the generator is low, the voltage regulator will energize the excitation coil and increase the magnetic field strength to increase the output voltage. When the output voltage is too low, the voltage regulator will excite the excitation coil and increase the magnetic field strength to increase the output voltage. When the output voltage is low.