Dy Auto Corporation

Dong Hun Son

Bo Sung Jo

Eui Cheol Jeong

Provided is a safety power window controlling method including an operation in which a ripple current detector detects a ripple current by removing high-frequency noise from an output current signal of a four-pole stator motor; an operation in which an amplifier receives a ripple current as a first input signal, receives a reference voltage as a second input signal, and outputs an amplified current signal obtained by amplifying the first input signal to a level of the reference voltage; and detecting the amplified current signal output by the amplifier as a valid signal by using at least two preset reference values.

Method and apparatus for controlling safety power window

An apparatus and method of controlling a power window by using an output current of a driving motor. The output current is measured to calculate and store a current reduction time, and then, execution of a safety function is delayed when an interruption in ascending of the window glass is sensed, so that interruption caused by noise generated when a car moves over an unpaved road or road bumps may be distinguished from interruption caused by an actual obstacle. Then, the safety function is prevented from being executed if the interruption in the ascending of the window glass is caused by the noise. Therefore, the interruption of the ascending of window glass due to the noise generated when the car moves on the unpaved road or road bumps may be distinguished without using an additional sensor.

Growing community of inventors

Pohang-si, South Korea

Dong Hun Son