Bmw electronic valve working principle video

The working principle of BMW electronic valve is as follows: 1. The driver operates the accelerator pedal position sensor to generate a corresponding voltage signal, which is input to the throttle control unit. The control unit firstly filters the input signal to eliminate the influence of environmental noise; 2. Then, according to the current working mode, pedal movement and change rate, the driver's intention is analyzed, the basic demand for engine torque is calculated, and the corresponding basic expected value of throttle opening is obtained; 3. Then communicate with the vehicle control unit through CAN bus, and obtain other working condition information such as engine speed, gear position, throttle position, air conditioning energy consumption and various sensor signals. 4. Calculate all the torque required by the whole vehicle, get the optimal opening of the throttle by compensating the expected value of the throttle angle, and send the corresponding voltage signal to the drive circuit module to drive the control motor to make the throttle reach the optimal opening position; 5. The throttle position sensor feeds back the throttle opening signal to the throttle control unit to form closed-loop position control.