Hydraulic active suspension flow control system
US11813914B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2023 |
| Grant date | Nov 14, 2023 |
| Priority date | — |
| Expiry date | May 6, 2043 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/405
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A hydraulic active suspension flow control system includes a hydraulic oil tank, a variable displacement pump with an oil suction port communicating with the hydraulic oil tank, a check valve, a servo valve, a suspension cylinder controlled by the servo valve, an engine revolution speed sensor configured to detect an engine revolution speed, a vehicle speed sensor configured to detect a vehicle speed, an oil pressure sensor configured to detect an accumulator outlet pressure, a flow controller configured to control displacement of the variable displacement pump by receiving data from the engine revolution speed sensor, the vehicle speed sensor and the oil pressure sensor, and a relief valve connected to the check valve in parallel and provided at an oil outlet of the variable displacement pump. The variable displacement pump is connected to an engine through a clutch; and an accumulator is connected between the servo valve and the check valve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.