Motor control system, drive unit and electric vehicle

A motor control system for use in an electric vehicle, the motor control system comprising:

• an accelerator lever operable by a user;
• a housing to rotatably support the accelerator lever;
• an angle sensor to output a signal in accordance with a rotation angle of the accelerator lever;
• a controller configured or programmed to control an electric motor to generate a drive power to drive the electric vehicle, and to perform a control such that a rotation speed of the electric motor is increased in response to an increase in a first rotation angle, which is a rotation angle in a first rotation direction of the accelerator lever from a reference position of the accelerator lever;
• and
• a first torsion spring including a coil portion inside of which a rotation shaft of the accelerator lever extends to apply a first elastic force in a second rotation direction in an opposite direction to the first rotation direction to the accelerator lever;
• wherein
• the controller is configured or programmed to perform a control to stop the electric motor upon detecting that the first rotation angle is equal to or greater than a first predetermined rotation angle.