Patent ID: 9260035
Filing Date: 2016-02-16
CPC Classification: B60L,B62J,B62K,B62M,Y02T

Claim Text:
1. A control method of an electric bicycle in which a motor is rotated using electric energy stored in a battery to drive the electric bicycle, comprising: receiving an acceleration instruction value, which is determined based on a throttle opening degree changed by a driver, to accelerate the electric bicycle during traveling; sensing a first current traveling velocity of the electric bicycle; calculating a reference value according to the sensed first current traveling velocity; comparing the received acceleration instruction value with the calculated reference value; sensing a gradient of a road surface on which the electric bicycle travels when it is determined that the received acceleration instruction value is more than the calculated reference value; decreasing a velocity slope of the motor below a target velocity slope based on the sensed gradient of the road surface; sensing a second current traveling velocity of the electric bicycle after decreasing the velocity slope of the motor; and decreasing further the velocity slope of the motor below the target velocity slope if the sensed second current traveling velocity is higher than a target velocity.