Electric bicycle driving device and method therefor
AssigneeHl Mando Corporation
InventorsKyung Ho Hong, Seungkyung Lee
Life of this patent
Estimating the term…
Abstract
The present invention relates to a system for driving a chainless electric bicycle comprising: a driving wheel; a pedal; a motor mechanically connected to the driving wheel; a generator mechanically connected to the pedal; and a battery, wherein provided is a system comprising: a generator location sensor for measuring the value of a rotation location of the generator; a motor location sensor for measuring the value of a rotation location of the motor; and a controller configured to calculate a difference value of the value of the rotation location of the motor minus the value of the rotation location of the generator multiplied by a gear ratio, and to control at least one of the generator and the motor on the basis of the difference value.
Claims16
A device for driving a chainless electric bicycle, the device comprising:
- a motor configured to drive a driving wheel;
- a generator configured to generate power using a pedal;
- a generator position sensor configured to measure a value of a rotational position of the generator;
- a motor position sensor configured to measure a value of a rotational position of the motor;
- and
- a controller configured to calculate a difference value obtained by subtracting a value obtained by multiplying the value of the rotational position of the motor by a gear ratio from the value of the rotational position of the generator and control the generator or the motor on the basis of the difference value.
A method of driving a chainless electric bicycle, which is performed by a controller including one or more processors, the method comprising:
- receiving a value of a rotational position of a generator from a generator position sensor;
- receiving a value of a rotational position of a motor from a motor position sensor;
- calculating a difference value obtained by subtracting a value obtained by multiplying the value of the rotational position of the motor by a gear ratio from the value of the rotational position of the generator;
- and
- controlling the generator or the motor on the basis of the difference value.
A device for driving a chainless electric bicycle, the device comprising:
- a motor configured to drive a driving wheel;
- a generator configured to generate power using a pedal;
- a generator position sensor configured to measure a value of a rotational position of the generator;
- a motor position sensor configured to measure a value of a rotational position of the motor;
- a generator current sensor configured to measure a current of the generator;
- a motor current sensor configured to measure a current of the motor;
- and
- a controller configured to calculate a target pedal torque on the basis of a difference between a position of the generator which is measured by the generator position sensor and a position of the motor which is measured by the motor position sensor and control the current of the generator to reach the calculated target pedal torque.
A method of controlling a device for driving an electric bicycle, which is performed by a controller including one or more processors, the method comprising:
- receiving a position of a generator from a generator position sensor;
- receiving a position of a motor from a motor position sensor;
- calculating a target pedal torque on the basis of a difference between the position of the generator and the position of the motor;
- and
- controlling a current of the generator to reach the calculated target pedal torque.
Dependencies are inferred from the claim text.