Title:
点火装置
Document Type and Number:
Japanese Patent JP6639982
Kind Code:
B2
Abstract:
An ignition device includes a spark plug, a measurement value detector, an electrical breakdown determiner, an AC voltage applying section, and a first changing section. The measurement value detector includes primary and secondary coils, and detects at least one measurement value among an ignition coil, a primary current, a primary voltage, a secondary current, and a secondary voltage. The electrical breakdown determiner determines whether a discharge has become an electrical breakdown state based on the measurement value. The AC voltage applying section applies an AC voltage of a first predetermined frequency that causes voltage resonance to the primary coil. The first changing section changes the frequency of the AC voltage to a second predetermined frequency that can maintain the electrical breakdown state and is lower in frequency than the first predetermined frequency when it is determined that the discharge has become the electrical breakdown state.
Inventors:
Shota Kinoshita
Akimitsu Sugiura
Doi Kaori
Aoki civilization
Akimitsu Sugiura
Doi Kaori
Aoki civilization
Application Number:
JP2016062213A
Publication Date:
February 05, 2020
Filing Date:
March 25, 2016
Export Citation:
Assignee:
株式会社ＳＯＫＥＮ
株式会社デンソー
株式会社デンソー
International Classes:
F02P3/05; F02P3/01; F02P17/12; H01T13/52; H01T15/00; H05H1/24; H05H1/52
Domestic Patent References:
| JP2013060941A | ||||
| JP2011530039A | ||||
| JP2010096112A | ||||
| JP2014206137A | ||||
| JP57051960A | ||||
| JP2009030554A | ||||
| JP2014105681A | ||||
| JP2015200264A | ||||
| JP2017534015A | ||||
| JP2003161245A | ||||
| JP5307284B2 |
Foreign References:
| US20150114331 | ||||
| WO2014196469A1 |
Attorney, Agent or Firm:
Tsuyoshi Yamada
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita
Kyoko Hino
Hiroshi Matsuda
Yusuke Kita