What is the reason for the current sound when stepping on the accelerator?

It's normal to step on the accelerator with electric current. Generally, when the key door cannot be opened, the throttle will be activated and controlled for a period of time. Most modern new cars are electronic throttles. More information about the electronic throttle is as follows: 1. Electronic throttle is an important control part of automobile engine. It consists of engine, speed sensor, throttle and so on. The electronic throttle control system can accurately control the throttle opening. 2. Using electronic throttle control system to accurately control the throttle opening can not only improve fuel economy and reduce emissions, but also make the system respond quickly and obtain satisfactory handling performance.