Driver's Seat Module With Memory Function

The seat adjustment switches are also read directly in connection with the driver's seat module with memory function but in this case by the driver's seat module with memory function itself. The seat adjustment switches supply a defined voltage corresponding to the request. Based on these voltage values, the driver's seat module determines what motor it must activate. Activation takes place via the relay in the driver's seat module until the seat adjustment switch is released or the end of the adjustment range is reached.

The Hall sensors in the adjustment motors supply Hall pulses which are evaluated by the driver's seat module with memory function. The seat position is determined based on the Hall pulses. This function is used not only to detect the end stops but also to store the memory position of the driver's seat.

Blocking of a motor is detected by means of the current measurement function integrated in the driver's seat module. In this case, the relays are no longer actuated thus shutting down the motors. The memory setting for this motor is inhibited until the motor is no longer blocked.