US 12,065,997 B2
Ignition coil control system and method
Kiseon Sim, Suwon-si (KR)
Assigned to HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed by HYUNDAI MOTOR COMPANY, Seoul (KR); and KIA CORPORATION, Seoul (KR)
Filed on Jun. 20, 2022, as Appl. No. 17/844,428.
Claims priority of application No. 10-2021-0099175 (KR), filed on Jul. 28, 2021.
Prior Publication US 2023/0035555 A1, Feb. 2, 2023
Int. Cl. F02P 3/045 (2006.01); H01F 38/12 (2006.01); H03K 3/017 (2006.01)
CPC F02P 3/0453 (2013.01) [H01F 38/12 (2013.01); H03K 3/017 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An ignition coil control system, comprising:
a plurality of ignition coils that respectively include a primary coil and a secondary coil;
a spark plug that generates a spark discharge by a discharge current generated by the plurality of ignition coils and includes a center electrode and a ground electrode;
a sensing part measuring a current applied to the primary coil; and
an ignition controller that adjusts a reference duty signal based on an amount of the current applied to the primary coil sensed by the sensing part to adjust discharge energy generated between the center electrode and the ground electrode through the secondary coil.