Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DEGRADATION DETECTION SYSTEM, BRAKE CONTROL DEVICE, AND DEGRADATION DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/224874
Kind Code:
A1
Abstract:
This degradation detection system (1) is provided with: a storage unit (11) which stores therein actual measurement values of command pressure and actual measurement values of response pressure; and a simulation unit (12) which, using a physics model, computes a response pressure in accordance with a command pressure so as to determine the waveform for the response pressure computed in accordance with a waveform of the command pressure when a change has occurred in command pressure. A waveform identification unit (13) identifies a waveform of the computed response pressure that matches the waveform of the detected response pressure. A degradation identification unit (15) identifies, from parameter values acquired from the waveform identification unit (13) and normal ranges for the respective parameters, a degraded constituent element of a pressure regulation valve (22).

Inventors:
SAEKI TETSUYA (JP)
SHIRATSUCHI KOJI (JP)
Application Number:
JP2018/019496
Publication Date:
November 28, 2019
Filing Date:
May 21, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F16K37/00; B60T15/36; F15B20/00
Foreign References:
JP2005180989A2005-07-07
JP2017101790A2017-06-08
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
Download PDF:



 
Previous Patent: STEERING DEVICE

Next Patent: USER TERMINAL