Testing device for magnetorheological semi-active suspension system

The invention discloses a testing device for a magnetorheological semi-active suspension system. The testing device comprises a quarter vehicle mechanical platform rack, an electro-hydraulic servo actuator, a sensing measurement and control system, a signal transmission system and a data processing system; the electro-hydraulic servo actuator outputs at least one standard signal according to an instruction of the sensing measurement and control system and reproduces test field or wild road spectrum signals according to fluctuation of unsprung mass; the sensing measurement and control system isalso used for mutual calibration of control signals required by a control algorithm and facilitates the implementation of reliability verification of different algorithms. The device can meet testingrequirements of magnetorheological suspensions of different specifications, simulate the actual working conditions of the quarter vehicle suspension system to the greatest degree and improve the reliability and accuracy of te