Determining seatbelt position with pressure sensing garment
AssigneeXSENSOR Technology Corporation
InventorTerence Russell
Life of this patent
Estimating the term…
Abstract
A system determines the position of a seatbelt in a crash test using a pressure sensing garment affixed to a crash test dummy. The pressure sensing garment is a surface or material configured to measure pressure applied to the crash test dummy during a crash test. The pressure sensing garment measures pressure applied to the crash test dummy using a capacitive sensor grid. The system determines the position of the seatbelt based on the pressure data from the pressure sensing garment and may apply various algorithms to automatically determine the angle and centerline of the seatbelt based on the pressure data.
Claims20
A system for determining pressure sensing data exerted on a crash test dummy during a crash test, the system comprising:
- in an environment where a vehicle is configured to be pulled into a collision with the crash test dummy strapped by a seatbelt across a chest of the crash test dummy:
- the pressure sensing garment configured to measure pressure applied to a chest of the crash test dummy during a collision, wherein the crash test dummy is affixed to the pressure sensing garment and the seatbelt is positioned on top of the pressure sensing garment, the pressure sensing garment comprising:
- a sensor grid including a plurality of sensors configured to measure pressure data, wherein the crash test dummy is configured such that the sensor grid is positioned to the chest of the crash test dummy;
- and
- a computer configured to:
- receive pressure data from the pressure sensing garment, and
- determine the position of the seatbelt based on the received pressure data.
A method of determining a centerline of a seatbelt using a pressure sensing garment, the method comprising:
- receiving pressure data from a pressure sensing garment affixed to a crash test dummy, wherein:
- the pressure sensing garment is configured to measure pressure applied to a chest of the crash test dummy during a collision,
- the pressure sensing garment comprises a sensor grid including a plurality of sensors configured to measure pressure data, and
- the crash test dummy is strapped, by a seatbelt, into a vehicle configured to be pulled into a collision;
- applying a set of filters to the pressure data to isolate pressure data caused by the seatbelt;
- computing a center of pressure (COP) of the filtered pressure data;
- computing an angle of the seatbelt based on the COP;
- and
- computing a centerline of the seatbelt based on the COP and angle of the seatbelt.
Dependencies are inferred from the claim text.