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Patent Searching and Data


Title:
INTERNAL COMBUSTION ENGINE IGNITION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/193909
Kind Code:
A1
Abstract:
An internal combustion engine ignition system provided with: a third switching element (14) which blocks or conducts a primary current that flows from a voltage application section (17) to a center tap (12A) of a primary coil (12); a first switching element (15) which is connected to one end side on a first winding (12B) side; a second switching element (16) which is connected to another end side on a second winding (12C) side; an ignition control circuit (30) which, by controlling the operation of each switching element, performs discharge generating control for causing an ignition plug to generate spark discharge, and discharge maintaining control for maintaining the spark discharge occurring at the ignition plug (20) by blocking or conducting the primary current flowing to the second winding; and a current backflow route (L1, L4, L7) for flowing back the current flowing from the second winding to the second switching element.

Inventors:
OHNO, Takashi (1-1 Showa-cho, Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2018/015045
Publication Date:
October 25, 2018
Filing Date:
April 10, 2018
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F02P3/00
Domestic Patent References:
WO2017010310A12017-01-19
Foreign References:
JP2015200284A2015-11-12
JP2015200300A2015-11-12
JP2015200249A2015-11-12
Attorney, Agent or Firm:
YAMADA, Tsuyoshi (Daiichi Hasegawa Bldg.6F, 13-24 Meieki 3-chome, Nakamura-ku, Nagoya-sh, Aichi 02, 〒4500002, JP)
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