Title:
HYDRAULIC ACTIVE SUSPENSION FLOW CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/206957
Kind Code:
A1
Abstract:
A hydraulic active suspension flow control system, comprising a hydraulic oil tank (1), a variable displacement pump (2) having an oil suction port communicated with the hydraulic oil tank (1), and a one-way valve (4), a servo valve (8) and a suspension cylinder (7) controlled by the servo valve (8) which are sequentially connected to an oil discharge port of the variable displacement pump (2). The variable displacement pump (2) is connected to an engine (9) by means of a clutch (12). An energy accumulator (6) is communicated between the servo valve (8) and the one-way valve (4). The hydraulic active suspension flow control system further comprises an oil pressure sensor (5) mounted at an outlet of the energy accumulator (6), an engine rotational speed sensor (10), a vehicle speed sensor (11), and a flow controller (13) for controlling the displacement of the variable displacement pump (2). An overflow valve (3) communicated in parallel with the one-way valve (4) is further provided at the oil discharge port of the variable displacement pump (2).
Inventors:
ZHAO DINGXUAN (CN)
ZHU JIANXU (CN)
GONG MINGDE (CN)
LIU SHUANG (CN)
ZHANG ZHUXIN (CN)
SUN ZHIGUO (CN)
NI TAO (CN)
YANG BIN (CN)
CHEN HAO (CN)
HAN MINGYUAN (CN)
ZHU JIANXU (CN)
GONG MINGDE (CN)
LIU SHUANG (CN)
ZHANG ZHUXIN (CN)
SUN ZHIGUO (CN)
NI TAO (CN)
YANG BIN (CN)
CHEN HAO (CN)
HAN MINGYUAN (CN)
Application Number:
PCT/CN2022/084822
Publication Date:
October 06, 2022
Filing Date:
April 01, 2022
Export Citation:
Assignee:
UNIV YANSHAN (CN)
International Classes:
F15B11/17; B60G17/015; B60G17/019; B60W10/22; F15B1/02; F15B19/00
Domestic Patent References:
| WO2013125638A1 | 2013-08-29 |
Foreign References:
| CN113236617A | 2021-08-10 | |||
| CN110497760A | 2019-11-26 | |||
| CN106870481A | 2017-06-20 | |||
| CN103397678A | 2013-11-20 | |||
| CN111573545A | 2020-08-25 | |||
| JP2003291621A | 2003-10-15 | |||
| CN201281052Y | 2009-07-29 | |||
| CN105275044A | 2016-01-27 | |||
| CN112193237A | 2021-01-08 | |||
| CN102278334A | 2011-12-14 | |||
| CN108025614A | 2018-05-11 |
Other References:
See also references of EP 4209684A4
Attorney, Agent or Firm:
SHIJIAZHUANG ZHONGZHIHUAQING INTELLECTUAL PROPERTY OFFICE (SPECIAL GENERAL PARTNERSHIP) (CN)
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