Theft prevention system of electric bicycle and control method thereof

Abstract

An electric bicycle theft prevention system for preventing theft of an electric bicycle according to an embodiment of the present disclosure includes a motor unit, a sensor unit, a controller, and an alarm unit. The motor unit is a permanent magnet synchronous motor (PMSM), and is configured to rotate wheels of the electric bicycle by receiving power from an electric storage unit. The sensor unit is configured to detect a position of a rotation shaft or a rotor of the motor unit. The controller is configured to control the motor unit and the sensor unit. The alarm unit is configured to generate an alarm by an electrical signal of the control unit. In addition, when a theft prevention function is activated in an unused state of the electric bicycle, the controller monitors a sensor value of the sensor unit to detect a movement of the electric bicycle. An electric bicycle theft prevention control method of an electric bicycle theft prevention system for preventing theft of an electric bicycle according to an embodiment of the present disclosure includes a theft prevention function activating operation, an electric bicycle movement detecting operation, an alarm operating and wheel locking operation, an alarm operation and wheel lock cancelling operation. In the theft prevention function activating operation, a theft prevention function of the electric bicycle is activated by a user in an unused state of the electric bicycle. In the electric bicycle movement detecting operation, a controller monitors a sensor value of a sensor unit to detect a movement of the electric bicycle after the theft prevention function is activated. In the alarm operating and wheel locking operation, when the controller determines that the electric bicycle is moving in the electric bicycle movement detecting operation, an alarm is operated and wheels of the electric bicycle are locked. In the alarm operation and wheel lock cancelling operation, the controller detects whether the sensor value of the sensor unit is greater than a predetermined set value in the alarm operating and wheel locking operation, and when it is detected that the sensor value of the sensor unit is smaller than the predetermined set value, the alarm operation and wheel lock are cancelled.

Dependencies are inferred from the claim text.