Title:
CONTROL DEVICE AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2019/207767
Kind Code:
A1
Abstract:
The present invention can suitably normalize an abnormality of a control device by correcting an abnormal parameter on the basis of a past normal parameter, even when an accidental abnormality occurs in the parameter. The present invention is configured to have: a parameter division unit 2 which divides a distribution area of parameter values, which are calculated to control a vehicle 5, into a plurality of division ranges 1-4; a transition frequency calculation unit 3 which calculates a transition frequency between division ranges from and to which the parameter value is transitioned among the divided division ranges 1-4; and a parameter correction unit 4 which, when a parameter value A1 calculated to control the vehicle 5 is included in any of the division ranges 1-4 and a parameter A2, which is calculated after the parameter A1, is not included in any of the division ranges 1-4, corrects, on the basis of the transition frequency, the parameter value A2 to a value within the division range 4 to which a transition frequency from the division range 1, in which the parameter value A1 is included, is the highest.
Inventors:
NAKAGAWA SHINJI (JP)
Application Number:
PCT/JP2018/017208
Publication Date:
October 31, 2019
Filing Date:
April 27, 2018
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G05B9/02
Domestic Patent References:
| WO2017061028A1 | 2017-04-13 |
Foreign References:
| JP2018067065A | 2018-04-26 |
Attorney, Agent or Firm:
WILLFORT INTERNATIONAL PATENT FIRM (JP)
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