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.

Date of Patent:
Feb. 27, 2018

Filed:

Apr. 11, 2017
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Hitoshi Sako, Hyogo, JP;

Yohei Yamaguchi, Hyogo, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60L 3/00 (2006.01); B60L 15/00 (2006.01); G05D 1/00 (2006.01); B63H 21/21 (2006.01); B63H 20/00 (2006.01); B63H 21/14 (2006.01); B63J 99/00 (2009.01);
U.S. Cl.
CPC ...
B63H 21/213 (2013.01); B63H 20/00 (2013.01); B63H 21/14 (2013.01); B63B 2758/00 (2013.01); B63H 2020/003 (2013.01); B63H 2021/216 (2013.01); B63J 2099/006 (2013.01);
Abstract

Provided are an LP sensor that detects any one shift state from among forward, reverse and neutral, on the basis of an operation state of respective throttle levers corresponding to a plurality of engines, and a controller that controls the plurality of engines. The controller detects a simulated boat speed on the basis of the respective rotational speeds of the plurality of engines. When from a state in which the boat is operated by some engines from among the plurality of engines an attempt is made to operate the remaining engines being in a neutral shift state, the controller sets a shift-in prohibition flag of a corresponding engine, and prohibits shift-in control of the remaining engine, in a case where the simulated boat speed is higher than a first determination value.


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