Automobile rollover stability analysis method

The invention discloses an automobile rollover stability analysis method. By testing the operating limit working condition of the vehicle, the change of the vertical force Fz of each tire and the height H of the wheel center from the ground along with the test time T is recorded. The maximum ground clearance delta H of the tire in a working condition test can be calculated by acquiring the wheel center critical ground clearance H0 when the vertical force of the tire has a zero value for the first time and the maximum peak value Hmax of the wheel center height of the tire in the whole test process. And then the rollover stability of the automobile is comprehensively analyzed and evaluated according to the ground clearance value of each tire of the automobile in the test. According to the invention, the tire ground clearance value is utilized to directly reflect the roll attitude of the vehicle, so that the roll stability analysis and evaluation are simple and reliable, and the method can be widely applied to t