Title:
SUSPENSION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/230560
Kind Code:
A1
Abstract:
Hydraulic cylinders (1), (2) on the front wheel side are provided with: damping force regulating valves (7-10) that are disposed at portions for connection to first and second connection pipelines (5), (6) and that can regulate a damping force; and bridge valves (18), (20) for connecting/disconnecting upper chambers A and lower chambers B of the cylinders. Hydraulic cylinders (3), (4) on the real wheel side are provided with: damping force regulating valves (13-16) that can regulate a damping force at portions for connection to first and second connection pipelines (11), (12); and bridge valves (22), (24) for respectively connecting/disconnecting upper chambers (A) and lower chambers (B) of the cylinders. A controller (31) performs control for switching between the damping force regulating valves (7-10), (13-16) and the bridge valves (18), (20), (22), (24) in accordance with the traveling scene of a vehicle.
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Inventors:
YAMASHITA MIKIO (JP)
YAMAOKA FUMIYUKI (JP)
YAMAOKA FUMIYUKI (JP)
Application Number:
PCT/JP2019/020487
Publication Date:
December 05, 2019
Filing Date:
May 23, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60G21/06
Foreign References:
| JPS6278510U | 1987-05-20 | |||
| JP2014189242A | 2014-10-06 | |||
| JPH08132844A | 1996-05-28 | |||
| JP2013071523A | 2013-04-22 |
Attorney, Agent or Firm:
HIROWA PATENT FIRM (JP)
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