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Patent Searching and Data


Title:
SUSPENSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/004115
Kind Code:
A1
Abstract:
Provided is a suspension system with which it is possible to reduce power consumption of a battery mounted in a vehicle. The suspension system comprises: adjustable-damping-force shock absorbers disposed between the vehicle wheels and the vehicle body, a functional fluid the behavior of which changes due to electrical or magnetic fields being enclosed in the adjustable-damping-force shock absorbers, and voltage or current being supplied from a power source, whereby damping force is adjusted; an actuator that switches the damping force of the adjustable-damping-force shock absorbers; a vehicle height detection unit that detects the vehicle height state of the vehicle; a main controller provided in the vehicle body, the main controller calculating the required damping force on the basis of the detection value from the vehicle height detection unit, and outputting a control signal; and a subcontroller mounted in each of the adjustable-damping-force shock absorbers, each of the subcontrollers responding to the control signal, whereby a control voltage or a control current is supplied to the actuator and the damping force of the adjustable-damping-force shock absorber is controlled. Each of the subcontrollers is connected to the main controller via a communication line that transmits the control signal. Each of adjustable-damping-force shock absorbers is separately connected to the power source via a power line separate from the communication line.

Inventors:
FUNKE JOACHIM (DE)
BRUNS MATTHIAS (DE)
THOMAS HOEHENLEITNER (DE)
Application Number:
PCT/JP2018/023985
Publication Date:
January 03, 2019
Filing Date:
June 25, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60G17/015; B60G17/08; F16F9/46; F16F9/53; F16F15/02
Domestic Patent References:
WO2017002620A12017-01-05
Foreign References:
JP2002067650A2002-03-08
JPS60189408U1985-12-16
JPS5999137A1984-06-07
JPH102368A1998-01-06
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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