GF68.50-P-0003SX Rear Side Roller Blind, Function
GF68.50-P-0003SX Rear Side Roller Blind, Function
- with CODE (297) Roller sun blinds in rear doors
General
Each rear side roller blind is subdivided into a vertical roller blind on the rear side window and a horizontal roller blind on the triangular window. The side roller blinds on the left rear are driven by the le rear side roller sun blind motor (M24/5), the rear side roller blinds on the right rear are driven by the right rear side roller sun blind motor (M24/6)
Both rear side roller blinds are rolled up in the open state.
The rear side roller blind can only be actuated when the side window is closed. The rear side roller blind of each rear side close and open always simultaneously in the automatic mode without intermediate positions.
Component Identification:
Control points
The rear side roller blind can be operated via the following control points:
^ in the driver-side switch group via the:
- Left rear power window and side window roller blind switch (S20/1s3)
- Right rear power window and side window roller blind switch (S20/1s4)
^ in the left rear door switch group via the:
- Right rear power window and side window roller blind switch (S21/21s1)
- Left rear power window and side window roller blind switch (S21/21s3)
^ in the right rear door switch group via then:
- Right rear power window and side window roller blind switch (S21/22s1)
- Left rear power window and side window roller blind switch (S21/22s3)
It is also possible to operate the opposite rear side roller blind via the left rear door switch group and the right rear door switch group.
Function requirements
^ Circuit 15R On
^ Rear side roller blind normalized
^ For actuation via switch in rear: Child safety lock not active
Up to 5 min. after circuit 15R OFF, the rear side roller blinds can be actuated if the front doors are not yet open.
Function
Actuation of the power window switch and rear side window roller blind in the driver-side switch group is read in by the left front door control unit via the front door LIN.
Actuation of the power window switch and the left and right rear side window roller blinds is read in by the corresponding door control unit via the rear door LIN.
The adjustment request for the opposing rear side roller blind is transmitted to the opposing door control unit via the interior CAN The corresponding door control unit actuates the rear side roller sun blind motor in question.
Position recognition
The position counter in the corresponding door control units evaluates the signals of the corresponding Hall sensors of the rear side roller sun blind motors. Depending on the actuation direction, the counter is increased when "opening" and correspondingly decreased when "closing" the rear side roller blinds. The zero position is set by normalization. The position recognition is always active except in the Sleep mode
Normalization
The rear side roller blind is actuated up to the lockup position when closed the first time after a defined distance of travel to precisely determine the upper lockup position. The position counter in the corresponding door control unit is set to zero. Normalization is completed.
Excess force limiter
The excess force limiter is activated when the rear side roller blinds are moved up. If a force increase of 60 N is recognized within the range of 230 mm and 3 mm (inside opening), the drive is reversed and the corresponding rear roller blind is opened completely.
Lockup reverse
If the rear side roller blind is in the effective area of the excess force limiter, an emergency function is additionally activated when moving up. This emergency function is triggered when the rear side roller blind is normalized and if a force increase of max. 130 N is present or if the Hall sensor signals change for approx. 150 ms. This leads to pinch recognition, thereby reversing the rear side roller blind.
Lockup recognition
When the rear side roller blind is actuated, the drive is switched off after approx. 300 ms in spite of a continuous actuation request, if not more than 2 Hall sensor signals are recognized.
