Drive arrangement
US8612098B2 · kind B2 · utility
1Cited by
20References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2011 |
| Grant date | Dec 17, 2013 |
| Priority date | — |
| Expiry date | Sep 28, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4666
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A drive arrangement (1) for driving a motor (9) in a seat belt pre-tensioner incorporates a power supply circuit (6) in the form of an H bridge and a voltage boost circuit 16 which are controlled by a control unit (17). The control unit (17) controls the voltage boost circuit (16) to increase the voltage output to the motor (9) to speed up the rotation of the motor (9) whilst the motor (9) winds in slack in a seat belt (13).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.