Control method for achieving steep slope slow descending and slope slipping prevention in a speed ring mode

The invention discloses a control method for achieving steep slope slow descending and slope slipping prevention in a speed ring mode. The invention belongs to the technical field of electric tricyclecontrol. A controller judges the running state of an electric tricycle, if the electric tricycle is in the slope sliding state, the sector where the current vector is located is monitored in real time, and when the actual rotating speed of the motor is larger than the preset slope sliding preventing rotating speed, opposite driving force is provided for the sector where the is is located, so thatthe slope sliding rotating speed is stabilized at the preset slope sliding preventing rotating speed; and if the electric tricycle is in a steep slope quick-drop state, when the actual running speedof the motor is greater than the rotating speed value corresponding to the rotating handle, the vector sector where the is is located is determined, and opposite driving force is provided for the sector, so that the motor stabl