Electrically controlled suspension system
US7526665B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2006 |
| Grant date | Apr 28, 2009 |
| Priority date | — |
| Expiry date | Feb 3, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/702
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electronically controlled suspension system according to the present invention comprises a sensor unit for extracting and providing a vertical acceleration component of a vehicle body of a vehicle; a signal processing unit for calculating a vertical velocity of the vehicle body using the vertical acceleration component provided by the sensor unit; a control gain determining unit having a control gain set according to the amplitude of the vertical acceleration component, and detecting the amplitude of the vertical acceleration component provided by the sensor unit and extracting a control gain corresponding to the detected amplitude; a control command value calculating unit for calculating a control command value using the control gain provided by the control gain determining unit and the vertical velocity of the vehicle body provided by the signal processing unit; and a damper driving unit for driving the variable damper based in the control command value.According to the present invention described above, a control command value for use in controlling a damping force of a damper is calculated using a nonlinear control gain according to a signal outputted from a speed or vertica…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.