Title:
ABNORMALITY DETECTION PROGRAM, ABNORMALITY DETECTION METHOD, AND ABNORMALITY DETECTOR
Document Type and Number:
Japanese Patent JP2021163388
Kind Code:
A
Abstract:
To improve the accuracy of abnormality detection.SOLUTION: An abnormality detector acquires operation log data including throttle operation measurement data, power volume measurement data, and speed measurement data relating to operation of an electrically driven mobile body. Based on the operation log data, upon detection of measurement data which does not satisfy at least any of a first relation, a second relation, and a third relation, the abnormality detector determines that abnormality has occurred in the mobile body. The first relation indicates that a relation between first full-open time as full-open time of a throttle from a stationary state and a first electric energy consumed at the first full-open time is linear. The second relation indicates that a relation between second full-open time as full-open time of the throttle during travel and a second electric energy consumed at the second full-open time is linear. The third relation indicates that a relation between time required for a predetermined speed increase and a third electric energy consumed during the speed increase is linear.SELECTED DRAWING: Figure 6
Inventors:
ITO TOSHIO
Application Number:
JP2020067073A
Publication Date:
October 11, 2021
Filing Date:
April 02, 2020
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G05B23/02; B60L3/00
Attorney, Agent or Firm:
Sakai International Patent Office