Automotive SBR Pressure Sensor

The full name of SBR is Safety Belt Reminder, which is a safety belt reminder device. This device is usually installed between the

co-pilot driver's seat foam and the outer skin or between the foam and the bracket. Its function is to send an alarm when a

passenger is sitting in the seat without a seat belt to remind the co-pilot driver and passenger to fasten their seat belts.

The working mechanism of the SBR pressure sensor is as shown in the figure below. When someone sits on the co-pilot driver's

seat, the pressure signal will be transmitted to the SBR controller. At this time, if the passenger does not fasten the seat belt, the

signal of the seat belt sensor will be transmitted to the SBR controller at the same time device, so that the car will immediately

flash the safety indicator light and issue an alarm, and some automotive products will issue an alarm after the car reaches a

certain speed.

Some friends will ask questions: Since the co-pilot driver seat needs to install this part, does the main driver's seat also need

it? We know that when the car starts, there must be someone sitting in the main driver's seat, so there is no need to use

pressure sensors to judge whether there is someone in the main driver's seat, and an alarm signal will be sent directly when the

seat belt is not buckled. There is no need to install the SBR car seat sensor in the driver's seat. Therefore, in the process of

developing seat products, SBR is also called an occupancy sensor or a pressure sensor.

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