Narrow road turning method

The invention provides a narrow road turn-around method which comprises the steps that a vehicle is controlled to turn around on a narrow road, and the control method comprises the steps that according to the running condition of the vehicle, the vehicle is controlled to enter state circulation through decision making of a finite state machine, and the state circulation comprises a forward state, a first switching state, a backward state and a second switching state which are triggered in sequence; when the vehicle is in the advancing state, the vehicle is controlled to advance at a first preset speed, and the vehicle is controlled to keep the maximum turning angle in the first preset direction; when the vehicle is in the second switching state, the vehicle is controlled to be switched from the reverse gear to the forward gear, and whether the vehicle turns around or not is judged; when it is judged that the vehicle turns around, the vehicle is controlled to jump out of the state; and when it is judged that t