Title:
CONDITION MONITORING DEVICE AND TRANSPORTATION VEHICLE MOUNTED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2019/244423
Kind Code:
A1
Abstract:
This condition monitoring device has at least: a sensor 201 that is attached to electric wiring 22 connecting a power conversion device 101 and a rotating electric machine 102 and measures at least either the current or the voltage in the electric wiring 22; a signal processing unit 301 for obtaining a signal output from the sensor 201 via a signal cable 202 and converting the signal to a predetermined format; a communication unit 401 for transmitting the output of the signal processing unit 301 to the outside of a transportation vehicle 1; and a shielding housing 302 for covering the sensor 201.
Inventors:
TAKAHASHI AKESHI (JP)
YAMAGUCHI TAKUMA (JP)
TOKUYAMA KAZUO (JP)
YAMAGUCHI TAKUMA (JP)
TOKUYAMA KAZUO (JP)
Application Number:
PCT/JP2019/009830
Publication Date:
December 26, 2019
Filing Date:
March 11, 2019
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
B60L3/00; B61C17/00
Domestic Patent References:
| WO2011048683A1 | 2011-04-28 |
Foreign References:
| JP2014110671A | 2014-06-12 | |||
| JP2005049311A | 2005-02-24 | |||
| JP2009022143A | 2009-01-29 | |||
| JP2017188225A | 2017-10-12 | |||
| JP2002325313A | 2002-11-08 | |||
| JP2005145269A | 2005-06-09 | |||
| JP2015053767A | 2015-03-19 |
Other References:
See also references of EP 3808590A4
Attorney, Agent or Firm:
SUNNEXT INTERNATIONAL PATENT OFFICE (JP)
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