Patent ID: 11926392
Assignee: HL MANDO CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. An electric bicycle speed control device comprising:
a speed sensor unit configured to measure a rotation speed of a wheel and a rotation speed of a generator driven by a pedal;
a current sensor unit configured to measure driving currents of a motor for driving the wheel and the generator;
a wheel speed control unit configured to generate a wheel torque command value using a wheel speed command value obtained by multiplying a rotation speed of the pedal measured by the speed sensor unit by a gear ratio and a wheel speed value measured by the speed sensor unit;
a wheel torque control unit configured to generate a motor driving control current for driving the motor using the wheel torque command value and a driving current value of the motor measured by the current sensor unit; and
a pedal torque control unit configured to generate a generator torque control current for controlling a torque of the generator using a value obtained by applying an assist level to the wheel torque command value and a generator driving current measurement value measured by the current sensor unit.