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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11609999 B1

PDFFull Text
Date of Patent:
Mar. 21, 2023

Filed:

Dec. 04, 2018

Control system

Applicant:

Hitachi, Ltd., Tokyo, JP;

Inventor:

Nobuyasu Kanekawa, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Foley & Lardner LLP

Primary Examiner:

Qing Yuan Wu

Int. Cl.
CPC ...
G06F 21/57 (2013.01); G05B 13/02 (2006.01); G05B 23/02 (2006.01); B60W 60/00 (2020.01); G05B 9/03 (2006.01); B60W 30/08 (2012.01); G05B 13/00 (2006.01); G05B 9/00 (2006.01); G06F 21/00 (2013.01); G06F 11/07 (2006.01); G06F 11/36 (2006.01); G07C 5/08 (2006.01);
U.S. Cl.
CPC ...
G06F 21/577 (2013.01); B60W 60/007 (2020.02); G05B 13/0265 (2013.01); G05B 23/0205 (2013.01); B60W 30/08 (2013.01); B60W 60/00 (2020.02); B60W 60/0015 (2020.02); B60W 60/00188 (2020.02); G05B 9/00 (2013.01); G05B 9/03 (2013.01); G05B 13/00 (2013.01); G05B 23/02 (2013.01); G06F 11/07 (2013.01); G06F 11/36 (2013.01); G06F 21/00 (2013.01); G06F 2221/034 (2013.01); G07C 5/0808 (2013.01);
Abstract

The present invention is capable of realizing normal control of a control device and safe operation of a control target. In the present invention, an automatic control unitgenerates a control output that is output to a control target in response to an inputA safety verification control unitis configured to verify safety of the control output at a plurality of verification levels, and controls the control output on the basis of the verification result. A verification level selection unit manages the state related to the normality of the automatic control unitand selects the verification level of the safety of the control output in the safety verification control unitin accordance with the state.

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