What is the principle of electronic throttle?

Cars have become an essential tool for everyone to travel. Of course, automobile knowledge is essential. In order to facilitate your understanding of this knowledge, Bian Xiao will introduce the principle of electronic throttle to you today. Interested friends can learn about it, which may be helpful to you.

According to the pedal force of the driver, the electronic throttle changes the throttle opening through voltage change. Cars equipped with electronic throttles can adjust fuel consumption more accurately. 1. The biggest advantage of the electronic throttle control system is that it can achieve the best torque output in the whole range of the engine. 2. Adjust the throttle opening accurately. ECU first judges and processes various working condition information and sensor signals, then calculates the optimal throttle opening, and drives the motor to adjust the throttle to the corresponding throttle opening angle. 3. The emission performance of the engine is improved. Under various working conditions, the air-fuel ratio can be accurately adjusted to make combustion more complete and reduce exhaust gas. At idle speed, the throttle keeps stable combustion at the minimum opening, which improves the rationality of fuel and further adjusts the emission. 4. It has higher driving reliability. Electronic throttle control system adopts sensor redundancy design. From the control point of view, one sensor can make the system rotate normally, but the redundant design can make two sensors check each other, and when one sensor has problems, it can be identified immediately, which greatly increases the reliability of the system and ensures the safety factor of driving. You can choose different working modes. Drivers can choose different working modes through the mode switch according to different driving needs. There are generally three modes: normal mode, power mode and snow mode. The difference is that the response speed of the accelerator to the accelerator pedal is different. 6. Height compensation can be obtained. At high altitude, the atmospheric pressure decreases, the air is thin, and the oxygen content decreases, which affects the output power of the engine. At this time, the electronic throttle control system can compensate the throttle opening according to the functional relationship between atmospheric pressure and altitude, so as to ensure that the relationship between engine output power and accelerator pedal position remains stable.