Why should modern cars be equipped with instrument regulators?

For example, install high-power audio, high-power car platform, burglar alarm, car phone, etc. , it will increase the burden of automobile generators and batteries invisibly. These electrical appliances used in automobiles, such as household appliances, are generally used in parallel, but the load characteristics of each appliance are different. After these appliances are started with battery as power supply, different voltage stability results will be produced due to different load characteristics. All electrical appliances are based on an unchangeable principle: the more stable the power supply of any electrical appliance, the more ideal the working effect will be, and the closer it is to the design purpose; Just like people writing, writing on a stable desk at home must look better than writing on a constantly shaking bus. If the stability of the power supply in the car is improved, there may be no noise in the radio, the average brightness of the headlights will be brighter, the sound of the horn will become loud and powerful, the ignition will be smoother, the natural acceleration will be smoother, and the fuel will be relatively saved.