Temperature compensation method for an air suspension after engine shut-off
US9050871B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 2009 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Nov 27, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2500/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for temperature compensating an air spring of an air spring suspension of a motor vehicle after engine shut-off. A desired trim height is obtained. At engine shut-off, the ambient temperature is measured and the temperature of air in the air spring determined. After a wait time (for loading/unloading), a start trim height is measured. A predicted trim height is determined for when the air in the air spring is at the ambient temperature. Finally, the volume of the air in the air spring is selectively adjusted so that when the air in the air spring arrives at the ambient temperature, the trim height will be about the desired trim height.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.