Title:
内燃機関の点火装置および点火方法
Document Type and Number:
Japanese Patent JP5765493
Kind Code:
B2
Abstract:
An ignition unit (11) has a superimposed voltage generation circuit (17) that feeds, between electrodes of an ignition plug (9), a superimposed voltage of the same direction as a discharge voltage, and in an operation range wherein an engine rotation speed is equal to or lower than a given speed and an engine load is equal to or lower than a given load, feeding of the superimposed voltage is carried out. Although the energization time for a primary coil (15a) is basically set in accordance with the engine rotation speed, the energization time TDWLON for the superimposed voltage feeding is set shorter than the energization time TDWLOFF for the superimposed voltage non-feeding. With this, temperature increase of the ignition unit (11) caused by the feeding of the superimposed voltage is suppressed.
Inventors:
Taisuke Shiraishi
Kazuo Watanabe
Shinichi Okamoto
Kazuo Watanabe
Shinichi Okamoto
Application Number:
JP2014557338A
Publication Date:
August 19, 2015
Filing Date:
November 18, 2013
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02P3/00
Domestic Patent References:
| JP59103968A | ||||
| JP200968443A | ||||
| JP9324731A | ||||
| JP1177455A | ||||
| JP2000257541A | ||||
| JP63129167A |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi