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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