Title:
ノッキング判定装置及びノッキング判定方法
Document Type and Number:
Japanese Patent JP6542073
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a knocking determination device and a knocking determination method enabling a degree of freedom in determination of knocking to be increased in regard to a format of determination whether or not a knocking occurs.SOLUTION: A knocking determination device 10 determines a presence or non-presence of knocking on the basis of taken signals indicating a physical amount based on a pressure variation generated at an engine. The knocking determination device 10 includes: a signal selection part 30 for selecting a determination signal for determining a presence or non-presence of the knocking from the taken signals; a management part 60 and the signal selection part 30 for selecting a plurality of object signals on the basis of a condition defined in relation to the determination signal from the taken signals; a spectrum calculation part 40 and a bi-spectrum calculation part 41 for calculating a value based on the spectrum of each of the object signals in reference to the plurality of object signals; a spectrum calculating part 40 and the bi-spectrum calculation part 41 for calculating a value based on a spectrum of the determination signal in reference to the determination signal; and a determination part 50 for determining whether or not the determination signal is a signal indicating the knocking.SELECTED DRAWING: Figure 2
Inventors:
Taro Kasahara
Large High Masasho
Yu Shimura
Katsuyuki Sueyoshi
Taichi Ikeda
High Risa Hashi
Murase Michio
Okishi
Large High Masasho
Yu Shimura
Katsuyuki Sueyoshi
Taichi Ikeda
High Risa Hashi
Murase Michio
Okishi
Application Number:
JP2015167261A
Publication Date:
July 10, 2019
Filing Date:
August 26, 2015
Export Citation:
Assignee:
Ono Sokki Co., Ltd.
International Classes:
F02D45/00; G01H17/00
Domestic Patent References:
| JP200590250A | ||||
| JP2003314348A | ||||
| JP2004138032A | ||||
| JP8319879A |
Attorney, Agent or Firm:
Toshiya Fujii