Magnetorheological damper with inflation height and rigidity capable of being adjusted in real time and automobile suspension

Abstract

The invention discloses a magneto-rheological damper capable of adjusting inflation height and rigidity in real time and an automobile suspension, the magneto-rheological damper comprises a main cylinder assembly, an inner cylinder assembly, an auxiliary cylinder and a fluid channel communicated with the main cylinder assembly, the inner cylinder assembly and the auxiliary cylinder, and the inner cylinder assembly and the main cylinder assembly are coaxially arranged. According to the invention, the height of the inner cylinder assembly is adjusted by gas through the fluid channel, so that the stepless lifting of the height of the inner cylinder assembly and the adjustment of the overall rigidity of the device are realized, specifically, high-pressure gas is input into the gas nozzle, and the pressure change when the gas nozzle inputs or releases the high-pressure gas is monitored through at least one pressure sensor; and at least one displacement sensor monitors the displacement change of the inner cylinder assembly relative to the main cylinder assembly, and according to signals provided by the sensors, the control unit accurately controls the pressure and flow of the high-pressure gas so as to adjust the lifting height of the inner cylinder assembly and the rigidity of the device. And the requirements of real-time adjustment of the passing performance and the height of the vehicle are met.

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