Systems and methods for hand wheel translational vibration attenuation
US8632097B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2012 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Oct 12, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20834
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Methods and apparatus are provided for attenuating translational vibration in a steering system. The apparatus can include a housing having a fluid chamber, a recess and a mounting bracket that couples the housing to a hand wheel of the steering system. The fluid chamber can be in communication with the recess. The apparatus can include a mass disposed in the recess of the housing, which can have a fixed stiffness. The apparatus can include a damping fluid disposed in the housing so as to flow between the fluid chamber and the recess. The mass can be movable in the damping fluid, and the damping fluid can have a variable stiffness. The apparatus can further include a control module that determines a translational vibration experienced at the hand wheel and outputs a signal to vary the stiffness of the damping fluid in response to the translational vibration in substantially real-time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.