US 11,719,153 B2
Ignition device
Shota Kinoshita, Nisshin (JP); and Akimitsu Sugiura, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Apr. 28, 2022, as Appl. No. 17/732,317.
Application 17/732,317 is a continuation of application No. PCT/JP2020/039539, filed on Oct. 21, 2020.
Claims priority of application No. 2019-197905 (JP), filed on Oct. 30, 2019.
Prior Publication US 2022/0251999 A1, Aug. 11, 2022
Int. Cl. F02B 19/12 (2006.01); F02P 5/152 (2006.01)
CPC F02B 19/12 (2013.01) [F02P 5/152 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An ignition device for an internal combustion, the ignition device comprising:
an ignition plug including an accessory chamber and an injection hole from which flame is to be injected from the accessory chamber to a main combustion chamber;
an operating information acquisition unit configured to acquire operating information regarding an operating state of the internal combustion; and
an ignition control unit configured to control an ignition energy profile that affects an ignition state of an air-fuel mixture based on the operating information acquired by the operating information acquisition unit,
wherein the ignition control unit is configured to:
compare a predetermined target load with a load acquired by the operating information acquisition unit,
decrease ignition energy to be supplied to the ignition plug, in response to a result of the comparison indicating that the acquired load is higher than the target load, and
increase ignition energy to be supplied to the ignition plug, in response to the result of the comparison indicating that the acquired load is lower than the target load.