WSS (Weight Sensing System) control unit, component description - GF91.60-P-4046R

MODEL 230 as of 1.3.06 with CODE (494) USA version 

Location 

The WS control unit is located on the seat frame of the front passenger seat.

Task 

• Evaluation and voltage supply of:
  • Belt tension sensor (B48/3)
  • Pressure sensor (B48/4)
• Weight categorization of applied weight (adult, object or child seat)
• Provision of weight category on CAN-B
• Save self-test and faults

After detecting occupation of the front passenger seat, the WS control unit uses the data recorded by the pressure sensor and belt tension sensor to determine a weight category for the person, object or child seat.

The weight category data are sent over the Controller Area Network bus Class B (interior) (CAN-B) to the restraint systems control unit (N2/7) for precise actuation of the front passenger airbag unit.

Discrete inputs 

• Term. 15R
• Circuit 31
• Data of
  • Belt tension sensor
  • Pressure sensor

Discrete outputs 

• Voltage supply of
  • Belt tension sensor
  • Pressure sensor