Programmable seat belt damper assembly
US6705559B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1999 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jun 27, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/288
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A programmable seat belt damper assembly for a seat belt in a motor vehicle. The programmable seat belt damper assembly includes a retractor operatively connected to the seat belt for winding and unwinding the seat belt. The programmable seat belt damper assembly also includes a rotary damper operatively connected to the retractor and having a magneto-rheological (MR) fluid therein. The programmable seat belt damper assembly further includes a controller electrically connected to the rotary damper to control an apparent viscosity of the MR fluid to increase and decrease a damping torque of the rotary damper for the unwinding of the seat belt.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.