a control device (1) for a system (2) for a seat comfort function with at least one airbag (200), comprising at least one actuator (103) with at least one adjusting element (104) and at least one SMA element (100), the adjusting element (104) between a first position and a second position;where the control device (1) continues to have at least one driver unit (6) with at least one driver (20) to operate the actuator (103) with at least one SMA element (100), at least one temperature sensor (70) and one control unit (30) to control the driver unit (6), the control unit being designed for this purpose, generate a control signal to control the drive unit (6),with the control signal off(a) at least one actual filling condition parameter;(b) a temperature signal of the temperature sensor;(c) a system parameter; and(d) a set state parameter and/or a set state change parameter is determined.
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