Pressure sensor malfunction detection device
US10358847B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 12, 2015 |
| Grant date | Jul 23, 2019 |
| Priority date | — |
| Expiry date | Dec 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C5/0816
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An external impact avoiding part makes a sensor failure detection part withhold from determining that a right or left door pressure sensor has failed when a right-left detection difference calculated at first time is a threshold value or larger, and makes a detection value comparison part calculate the right-left detection difference again after a calming time has elapsed. An effect of closing operation of a right door on the right door pressure sensor or an effect of closing operation of a left door on the left door pressure sensor reduces during the calming time. The avoiding part subsequently makes the detection part compare the right-left detection difference calculated again with the threshold value. As a result of the comparison, when the right-left detection difference is the threshold value or larger, the avoiding part makes the detection part determine that the right or left door pressure sensor has failed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.