Ride height leveling control for dual air spring configuration
US7950674B2 · kind B2 · utility
9Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2009 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | Aug 13, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/914
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air suspension system is configured to adjust and maintain a desired vehicle ride height and spring rate. The air suspension system includes a plurality of air spring assemblies that each include a piston airbag and a primary airbag mounted around the piston airbag. A controller receives ride height input data and adjusts pressures within the primary and piston airbags until the desired ride height and spring rate is achieved. The controller accommodates for system hardware differences by varying flow rates into and out of the primary and piston airbags relative to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.