Fatigue test system of vehicle suspension system and test method thereof

The invention discloses a fatigue test system of a vehicle suspension system and a test method of the fatigue test system, and the fatigue test system comprises a fixing device which comprises a vehicle frame fixing mechanism and is fixedly connected with a first connecting bushing on an auxiliary vehicle frame in the vehicle suspension system; a loading tool mounted at a tire mounting hole of a steering knuckle in the vehicle suspension system; a first loading device connected with the loading tool; and a second loading device connected with a shock absorber mounting hole of the vehicle suspension system. According to the fatigue test system and the test method thereof, the road stress condition can be truly reflected, the real vehicle environment of the vehicle suspension system is better simulated, the fatigue test progress and reliability are improved, reliable data are provided for subsequent tests, and the test period is shortened. 本发明公开了一种车辆悬架系统的疲劳试验系统及其试验方法，所述疲劳试验系统包括：固定装置，包括车架固定机构，与车辆悬架系统中副车架上的第一连接衬套