Method for charging and discharging air as well as maintaining and controlling air pressure
A technology of maintaining control, filling and deflating, applied in the field of servo control system, can solve the problems of inability to expand inflation, inability to accurately control the time of inflation and deflation, etc., to improve test accuracy and work efficiency, improve product operation quality, and stable performance. Effect
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[0017] Such as figure 1 As shown, the inflation and deflation and air pressure maintenance control system of the present invention is composed of an air source 1, an inflation solenoid valve 2, a deflation solenoid valve 4, an ECU control system 5, an air pressure sensor 6 and an enabling keyboard 7. Air source 1, inflation solenoid valve 2, target air chamber 3, and deflation solenoid valve 4 are connected sequentially. Air source 2 provides stable air pressure to target air chamber 3 when needed. Target air chamber 3 is a closed air chamber with any air pressure. The ECU control system 5 is respectively connected to the inflation solenoid valve 2 and the deflation solenoid valve 4 through the control line, the inflation solenoid valve 2 and the deflation solenoid valve 4 are air pressure control valves, and the PWM (pulse width modulation) control signal generated by the ECU control system 5 Switching to the opening and closing of the spool allows the air flow to pass throug...
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