METHOD AND SYSTEM TO DETECT RESISTANCE APPLIED TO AUTOMOBILE'S POWER WINDOWS

摘要

PROBLEM TO BE SOLVED: To provide a method and a system to detect a resistance force acting on the automobile's power windows. SOLUTION: The method and the system to detect existence of any substance that is pinched by the automobile's windows and the corresponding frames include such an electrically-driven motor that is to open or close them. The electrically-driven motor receives electric power through the first brush assembly unit that is connected to the power line. A piezoelectric sensor is fixed to the electrically-driven motor because it senses such a resistance force that is applied to the regulator, and generates a signal showing the same resistance torque. Then, the signal is conveyed to the control circuit, and it is determined whether a substance is pinched between the windows and the frames based on such signal. The signal is conveyed by the first brush assembly unit through the power line, or the second brush assembly unit that is directly connected to the control circuit.