Control unit for a windscreen wiper system for a rail vehicle and method for operating a windscreen wiper system for a rail vehicle

A method for operating a windscreen wiper system for a rail vehicle, the method comprising:

• reading-in an operating mode signal, the operating mode signal representing an item of information about an operating mode of the windscreen wiper system to be controlled;
• creating a control signal using the operating mode signal;
• outputting the control signal to the windscreen wiper system as an analog and/or digital signal;
• and
• driving the windscreen wiper system via the control signal,
• wherein the operating mode includes a parking, interval with multiple stages, wiping with multiple stages, rain sensor operation, and continuous operation,
• wherein, in the reading-in, a sensor signal is also read in, and wherein the creating the control signal is created by using the sensor signal, wherein the sensor signal is read in based on the output at least one switchable supply connection which alternately switches the supply voltage connection between each of the angle rotation sensor and the rain sensor.

A non-transitory computer program product with program code for carrying out a method for operating a windscreen wiper system for a rail vehicle, the method comprising:

• reading-in an operating mode signal, the operating mode signal representing an item of information about an operating mode to be controlled of the windscreen wiper system, and
• creating a control signal using the operating mode signal, and outputting the control signal to the windscreen wiper system as an analog and/or digital signal when the computer program product is executed on a control unit for a windscreen wiper system for a rail vehicle,
• wherein an operating function interface is configured to receive an item of information about the operating mode of the windscreen wiper system,
• wherein a sensor interface is configured to receive at least one analog and digital sensor signal,
• wherein a control device is configured to provide at least one control signal for the windscreen wiper system by using the information about the operating mode and the sensor signal,
• wherein a control output is configured to output the at least one control signal,
• wherein a supply voltage connection is configured to provide an applied voltage to the interfaces and the device of the control unit,
• wherein the sensor interface comprises at least one switchable supply connection coupled to an angle of rotation sensor and a rain sensor,
• wherein the at least one switchable supply connection alternately switches the supply voltage connection between each of the angle rotation sensor and the rain sensor, and
• wherein the operating function interface and the sensor interface is a LIN bus interface.