Adaptive off-state control method
US6311110A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 17, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jun 17, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/912
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An Adaptive Off-state (AO) control method (55) for use in conjunction with a suspension system (10) including a controllable damper (22) interconnecting relatively moveable members (12, 14) to reduce the transmission of vibrational forces therebetween. Such suspension systems (10) are switchable between alternative on- and an off-state in accordance with a primary control method (53) and/or a secondary override control method (59). Sensors (48, 52) monitor the parameters of the suspension system (10), such as the displacement, velocity, and acceleration of the moveable members (12, 14). Damper command signals (107) are provided to the damper (22) in the on-state (116) to adjust the damping characteristics thereof. In the off-state, the damping signal in conventional systems is approximately zero or a constant relatively low magnitude. According to the present adaptive off-state control method (55), the off-state damping signal (109) to the controllable damper (22) is modulated over time to make the off-state damping a function of the system inputs. In a preferred embodiment, the modulation is a function of the real time or time-averaged input disturbances to the system (10). In an …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.