Drive arrangement
US9505378B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jan 25, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4666
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A drive arrangement (1) comprising an input (2) from a primary power source (5) and an auxiliary power source (7). The drive arrangement (1) incorporates a DC-DC converter (8) and a motor driver circuit (14). The motor driver circuit (14) is connected to a motor (18) in a motorized seat belt retractor. The drive arrangement (1) drives the motor (18) in the event of a crash situation. If the connection between the drive arrangement (1) and the primary power source (5) is lost then the drive arrangement (1) draws power from the auxiliary power source (7) to drive the motor (18). The auxiliary power source (7) can also assist the primary power source (5) by limiting the current drawn from the primary power source (5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.