Method of controlling a four-point occupant restraint belt system
US8302995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2009 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Jan 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4685
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle occupant restraint system provides protection during a collision and subsequent rollover. Left and right shoulder belt retractors are actuated differentially in reaction to a lateral component of the crash force to lock one of the shoulder belts while allowing the other shoulder belt to extend under loading applied by a seat occupant. If a subsequent rollover is detected, the second shoulder belt retractor is actuated to lock or retract the second shoulder belt. The second shoulder belt may be retracted to achieve a specified level of tension and/or to achieve an extended length approximately equal to the extended length of the first shoulder belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.