ANTI-PINCH POWER WINDOW SYSTEM AND METHOD
A method (100) for closing a motor-driven window comprises the steps of determining (102) a window gap, and raising (104) the window at a speed dependent upon the window gap. The speed is selected based on the window gap and is reduced as the window gap approaches a pinch region such that the pinch-force is limited to a safe value. A vehicle power-window system (400) comprises a window assembly (410), a battery (420), an electric motor (430), a mechanical assembly (440), and a control circuit (450). Control circuit (450) monitors the window gap and supplies drive voltage to the electric motor in dependence on the window gap, so as to control the speed of the window in accordance with the disclosed method (100). Preferably, control circuit (450) includes a regulator circuit (460) and a processor (470), and the drive voltage is substantially unaffected by at least some changes in the battery voltage.