초록 ▼

A method and apparatus is provided for controlling the automatic opening and closing of a window of the driver's cab of a working vehicle in which the automatic opening and closing operations and locking operation of the window are carried out smoothly by detecting the opening and closing stop posit

A method and apparatus is provided for controlling the automatic opening and closing of a window of the driver's cab of a working vehicle in which the automatic opening and closing operations and locking operation of the window are carried out smoothly by detecting the opening and closing stop positions of the window and the operation stop positions of the locking units without fail and with high safety. In the method and the apparatus for controlling the opening and closing of the window in which the window (14) can be moved vertically between the window frame (16) and the top wall (18) by the driving means (34) for the driving cable (28) and pressed against the window frame (16) by the locking units (29L, 29R) during a window closing operation to shut the window, the terminal position for the downward movement of the window (14) during its closing operation and the terminal position for the upward movement of the window (14) during its opening operation are detected as a load current of the driving means (34) for the driving cable (28) exceeding a predetermined threshold value, whereupon the driving means (34) for the driving cable (28) is stopped. The locking stop positions and locking release positions of the locking units (29L, 29R) are also detected as the load currents of the lock motors (44L, 44R) exceeding a predetermined threshold value, whereupon the lock motors (44L, 44R) are stopped.

대표청구항 ▼

[ That which is claimed is:] [9.] An apparatus comprising:said driver's cab having a window, a window frame, and a top wall;guide rails formed on the window frame and on the top wall, the window being movable along the guide rails;a driving cable, connected to the window, for moving the window verti

[ That which is claimed is:] [9.] An apparatus comprising:said driver's cab having a window, a window frame, and a top wall;guide rails formed on the window frame and on the top wall, the window being movable along the guide rails;a driving cable, connected to the window, for moving the window vertically;a cable driving device for driving the driving cable;locking units for pressing the window against the window frame to shut the window; anda controller; said controller detecting a load current of the cable driving device in order to detect, as a load current of the cable driving device exceeding a predetermined threshold value, either of a terminal position for a downward movement of the window during a closing operation and a terminal position for an upward movement of the window during an opening operation; said controller continuing an operation of the cable driving device for a first predetermined time after an initiation of movement of the window by the cable driving device during the window closing operation, even if a load current of the cable driving device exceeds the predetermined driving threshold value; said controller outputting a stop signal to the cable driving device upon the occurrence of a detection of a terminal position.