Mando Corporation

Kawn Seek Kim

Hong Youp Son

Chang Woo Lee

Jung Wook Seo

Disclosed herein is an electronic stability control system including: a motor driver configured to include a motor switch for driving a motor unit depending on a PWM signal and a freewheeling switch and a reverse protection switch for checking whether the motor unit is normally operated; and a controller configured to turn off all of the motor switch, the freewheeling switch, and the reverse protection switch, turn off only the motor switch and the reverse protection switch, or turn off only the motor switch and the freewheeling switch, apply a diagnostic current, and then detect a fault state of the freewheeling switch or the reverse protection switch, or the freewheeling switch and the reverse protection switch by using a voltage detector.

Electronic stability control system, and method for detecting a fault of motor freewheeling FET circuit

Disclosed is an electric-bicycle driving apparatus. The electric-bicycle driving apparatus includes a speed-change mode operator to output a low-speed or high-speed mode signal, a controller to receive the low-speed or high-speed mode signal from the speed-change mode operator and to output a first or second control-signal corresponding to the low-speed or high-speed mode signal, a generation-signal provider to provide a generation-signal output from a generator, and a motor-driver operating-signal regulator to receive the first or second control signal when the speed-change mode operator outputs the low-speed or high-speed mode signal, to regulate a level of the generation-signal output from the generation-signal provider and to provide the resulting signal to a motor driver that drives a motor, the motor-driver operating-signal regulator providing a lowered level of generation-signal to the motor driver that is operated upon receiving power of a battery, and cutting off an abnormal signal from the motor driver.

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Hwaseong-si, South Korea

Kawn Seek Kim