Piezoelectric fluid injection valve control system and control method thereof

The invention belongs to the technical field of injection valves, and particularly relates to a piezoelectric fluid injection valve control system and a control method thereof, which are applied to apiezoelectric fluid injection valve. The system comprises a power supply circuit, a main control circuit and a piezoelectric control circuit which are connected in sequence; the main control circuit comprises a main control chip; the piezoelectric control circuit comprises an amplification output circuit, a first switch circuit and a piezoelectric output port.; the main control chip controls the amplification output circuit to turn on the first switching circuit so as to control the piezoelectric fluid electromagnetic valve. According to the invention, through the arrangement of the main control circuit and the piezoelectric control circuit, the main control circuit can send a control signal to the piezoelectric control circuit through the main control chip; therefore, the voltage value output to the piezoelectric