Slowing Down Wiper Motor, Function

Slowing Down Wiper Motor, Function

Following the completion of a wiping operation, the wipers must come to a stop in the park position.

NOTE:
- The wiper motor (M6/1) has a cam switch for detection of the park position. When the motor runs through the park position, the cam switch is actuated.
- The signal from the cam switch circuit 31b is checked continuously by the driver-side SAM control module (N10/10).

Prerequisites for braking wiper motor (M6/1):
- wiper motor is switched off (combination switch (S4) in position "0")
- intermittent wiping is switched on (combination switch (S4) in position "1") and wipers presently in intermittent pause.

Braking wiper motor:
To stop the wiper motor, the "On" and "Off" wiper relay (K40/2kH) is switched off by the driver-side SAM control module (N10/10).

Switching off the wiper "On" and "Off" relay (K40/2kH):
- wiper motor's (M6/1) circuit 53 disconnected from the power supply circuit 15R and connected to the deceleration output of driver-side SAM control module (N10/10).
- deceleration output is connected to ground by the driver-side SAM control module (N10/10) via an electronic switch (FET) thus short circuiting the wiper motor.
- motor is thus braked due to short circuit (eddy current brake).

Discontinuation of deceleration operation
The deceleration operation is discontinued when:
- an intermittent pause has expired
- the combination switch (S4) is set to position 2 or 3
- Circuit 15R OFF.