Vehicle rollover pre-warning method and system considering pavement parameter change

The invention discloses a vehicle rollover pre-warning method and system considering pavement parameter change. During establishing a vehicle rollover model used for calculating rollover index LTR, the influence on pavement input is considered so that the rollover index is also suitable for tripping rollover and non-tripping rollover; and meanwhile, the invention further discloses a method for determining a rollover pre-warning value, a vehicle speed and a pavement friction coefficient offline; and therefore, the pre-warning value of a vehicle rollover pre-warning method can be self-adaptivelychanged according to a vehicle state and a pavement environment; and the environmental adaptability and robustness of the pre-warning method are better. Compared with a traditional method, roll angleaccelerated speed is introduced in calculation of rollover index so that the calculation error of the rollover index is smaller when a vehicle approaches a rollover state, and the pre-warning is moreaccurate. 本发明公开了一种考虑路面参数变化