Title:
SUSPENSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/066707
Kind Code:
A1
Abstract:
According to the present invention, at a first voltage value V0 at which a damping force is in a soft characteristic region, when a steering angle angular velocity or a longitudinal acceleration exceeds a reserved application threshold X1, a second voltage value V1 larger than the first voltage value V0 is output to an ERF damper 31. In addition, when the steering angle angular velocity or the longitudinal acceleration exceeds a hard characteristic change threshold X2, a third voltage value V2, which is a hard characteristic voltage value above the second voltage value V1, is output to the ERF damper 31. Thus, the damping force of the ERF damper can be swiftly switched from soft characteristics to hard characteristics.
Inventors:
SUKA RYUICHI (JP)
Application Number:
PCT/JP2019/036175
Publication Date:
April 02, 2020
Filing Date:
September 13, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60G17/015; F16F15/02; F16F15/03
Foreign References:
| JPH08240240A | 1996-09-17 | |||
| JP2010184518A | 2010-08-26 | |||
| JP2018052203A | 2018-04-05 |
Attorney, Agent or Firm:
HANABUSA PATENT & TRADEMARK OFFICE (JP)
Download PDF: