Controller for automobile engine exhaust gas recirculation system valve

The utility model discloses a controller for an automobile engine exhaust gas recirculation system valve. The controller comprises a single-chip microcomputer, a driving chip, a pin header interface, a pressure regulator, an adjusting knob, an EGR valve, a computer, a 12 V power supply and a controller plate. The pin header interface is provided with thirteen ports, a first port and a second port are connected with a ground wire and the 12 V power supply and connected with the driving chip and the pressure regulator, and the pressure regulator is connected with the single-chip microcomputer. The adjusting knob is connected with the single-chip microcomputer through a third port, a fourth port and a fifth port, the single-chip microcomputer is connected with the driving chip, and the driving chip is connected with a sixth port and a seventh port. The EGR valve is connected with the sixth port, the seventh port, an eighth port, a ninth port and a tenth port. The eighth port, the ninth port and the tenth port ar