ROAD-SURFACE INCLINED-STATE DETECTION METHOD AND VEHICLE CONTROL METHOD

A road-surface inclined-state detection method includes an acquisition step of acquiring a vehicle state where pitching moment causing front wheels of a vehicle to move upward in a vertical direction relative to rear wheels of the vehicle is applied to the vehicle, and where rear suspensions suspending the rear wheels are stroked in a compressing direction, a count step of starting counting after the vehicle state acquired in the acquisition step meets a predetermined condition, and continuing the counting until the vehicle state fails to meet the predetermined condition, and an inclined-state detection step of detecting an inclined state of a road surface R on which the vehicle travels, according to count values counted in the count step.