Patent ID: 8265814

Claim:
A control method of an electric traction motorcycle comprising the steps of: mounting an accelerator grip so that the accelerator grip will rotate in a first rotation direction and about a rotation axis from a neutral position (N) towards a maximum acceleration position (A), and in a second rotation direction, opposite to the first rotation direction, and about the rotation axis from the neutral position (N) towards a deceleration position (D), which is arranged in the direction opposite to the maximum acceleration position (A) with respect to the neutral position (N); arranging an elastic member which tends to keep the accelerator grip in the neutral position (N); detecting the angular position (α) of the accelerator grip about the rotation axis during operation of the motorcycle and producing signals corresponding thereto; driving the electric machine as a motor for generating a varying driving torque (T) when the accelerator grip is between a neutral position (N) and the maximum acceleration position (A) and the value of the driving torque (T) varies according to the angular position (α) of the accelerator grip; driving the electric machine as a generator for absorbing a mechanical torque (T) that brakes the motorcycle when the accelerator grip is in the neutral position (N); and switching off the electric machine to eliminate the braking of the motorcycle when the accelerator grip is in the deceleration position.