Process for controlling deployment of air bag
US6921108B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2003 |
| Grant date | Jul 26, 2005 |
| Priority date | — |
| Expiry date | May 20, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/33
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Four load sensors having an upper limit value in a detection range are mounted in a seat of a vehicle. The weight of an occupant sitting on the seat is detected as a total of outputs from the load sensors. When the detected weight of the occupant is equal or larger than a predetermined value, the deployment of the air bag is permitted, and when the detected weight of the occupant is smaller than the predetermined value, the deployment of the air bag is prohibited. When any one of the outputs from the plurality of load sensors is the upper limit value in the detection range, the deployment of the air bag is permitted irrespective of the detected weight of the occupant. Thus, even when the output from the load sensor has been modified to the upper limit value by a limiting process, so that the weight of the occupant is calculated as a value smaller than an actual weight to become smaller than the predetermined value, the air bag can be deployed reliably to restrain the occupant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.