Title:
MISFIRE DETECTION SYSTEM, METHOD AND PROGRAM
Document Type and Number:
Japanese Patent JP2021021341
Kind Code:
A
Abstract:
To provide a misfire detection system for suppressing an erroneous notification of a misfire resulting from a load variation of a generator.SOLUTION: A misfire detection system 3 has a misfire count number acquisition unit 31 for acquiring a misfire count number which is counted on the basis of a variation of a rotation number of an engine 20 for rotating a generator 21, and a determination unit 34 for determining whether or not to output an alarm. When a first prescribed time elapses after a start of the engine 20, a state that an actual load rate of the generator 21 with respect to a rated load is a prescribed load or higher is continued for a second prescribed time or longer, a misfire count number in a prescribed monitoring period CL1 is a prescribed count number or larger, and a variation value of power generated by the generator 21 in the prescribed monitoring period CL1 is within a first threshold, the determination unit 34 determines to output the alarm.SELECTED DRAWING: Figure 1
Inventors:
KAMODA SOICHIRO
Application Number:
JP2019136446A
Publication Date:
February 18, 2021
Filing Date:
July 24, 2019
Export Citation:
Assignee:
YANMAR POWER TECHNOLOGY CO LTD
International Classes:
F02D45/00
Attorney, Agent or Firm:
Sano patent office
Patent Business Corporation Unias International Patent Office
Patent Business Corporation Unias International Patent Office