ELECTRICAL 110 8.11 WINDOW WINDING CONTROLLER INTRODUCTION: Power window system consists of controller integrated relays), low current switches and Window winding Regulator Motor. Window winding controller is an integrated control which controls the movement of all four windows. Controller senses the signal from low current switches and operates the window winding motors according to switch position (Manual UP/ Manual Down/Auto Down). At the same time controller also monitors the window position. When window has reached either of the end position, supply to motor is cutoff thereby protecting the motor from overheating. Whether the window is moving or has reached the end position is decided by monitoring the motor current. Running Current: Current drawn by motor while the window is moving up or down. Locking Current: Current drawn by motor when the window has reached the end position and thereby motor also stops running and stalls. Locking current is much higher than running current. Controller is programmed for maximum permitted Running Current and Minimum permitted locking current. As long as the controller senses the motor current is below the maximum running current, it allows motor to operate but the moment it senses the motor current is above the minimum locking current then within ‘t’ seconds controller will stops the motor supply. At a time one or more than one or all windows can be operated together. Window will operate in mode respective to its switch operation – MU (Manual up), MD (Manual Down), AD (Auto Down). Each window operation is monitored independent of other windows. LOCATION: It is located on rear side of BCM mtg bkt on assembly dash cross member. The Orientation of window winding controller is vertical with connector facing upwards. BLOCK DIAGRAM: BASIC SPECIFICATIONS: 1. Nominal voltage : 12 V DC, -ve ground 2. Operating voltage : 10 V to 16 V DC 3. Operating temperature : -30°C to +85°C 4. Storage temperature : -40°C to +85°C
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