Occupant protection device for a motor vehicle and seat belt unit

An occupant protection device for a motor vehicle, comprising:

• at least one adaptive restraint system with at least one restraint device and with at least one sensor device configured to acquire at least one occupant-specific parameter;
• and
• at least one control device,
• wherein the control device is adapted and configured to control the at least one restraint device at least in the event of an accident as a function of the occupant-specific parameter,
• wherein the sensor device comprises at least one textile pressure sensor that is integrated into a belt webbing of a seat belt and provides a plurality of spatially distributed pressure signals,
• wherein the sensor device comprises at least one evaluation unit that is adapted and configured to register the pressure signals in a spatially resolved manner and ascertain a pressure distribution that describes a spatial distribution of a force exerted on the seat belt by a person wearing the seat belt and provide the pressure distribution as an occupant-specific parameter to the control device for controlling the restraint device,
• wherein the pressure sensor is integrated into the belt webbing at least where the seat belt is configured to extend across a chest and an abdomen of the person, and
• wherein the evaluation unit is adapted and configured to separately ascertain the pressure distribution in a chest area of the seat belt and in an abdominal area of the seat belt and thereby calculate a chest-specific pressure load and an abdomen-specific pressure load.