A vehicle door is provided with a pressure sensor within a cavity in the door. The pressure sensor is coupled to a processor and is configured to determine the air pressure within the cavity of the door. The vehicle also includes an atmospheric air pressure sensor coupled to the processor. When the door is closed with enough of a force, the air pressure changes within the cavity. During this time, the processor is programmed to receive air-pressure signals from the pressure sensor. The processor recognizes a fault in the pressure sensor if the pressure sensor does not detect a change in air pressure that varies from the atmospheric pressure by more than an expected amount or threshold when the door closes or slams. The pressure sensor forms part of a side impact air bag trigger. Faults can occur due to blocked ports. The system may also include a door opening sensor, and integrate with the remote key fob operation. The system may connect to, or be part of an on board diagnosis (OBD) system.
Diagnosing a pressure sensor in a vehicle body structure
2017-04-05
Patent
Electronic Resource
English
IPC: | G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
Diagnosing A Pressure Sensor In A Vehicle Body Structure
European Patent Office | 2017
|VEHICLE DIAGNOSING DEVICE, VEHICLE DIAGNOSING SYSTEM, AND MOVING BODY DIAGNOSING DEVICE
European Patent Office | 2021
|VEHICLE DIAGNOSING SYSTEM, AND MOVING BODY DIAGNOSING SYSTEM
European Patent Office | 2021
|