The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Jun. 16, 2020
Hitachi Astemo, Ltd., Hitachinaka, JP;
Eiichiro Ohata, Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
Failure in ignition of a fuel by an ignition plug is reduced, and, at the same time, wearing of electrodes of the ignition plug in an internal combustion engine is suppressed. A control devicefor an internal combustion engine includes an ignition control unit that controls energization of an ignition coilthat supplies electric energy to an ignition plugthat discharges in a cylinderof the internal combustion engineto ignite fuel. The ignition control unit controls the energization of the ignition coilsuch that first electric energy is released from the ignition coiland second electric energy is released in superposition with the first electric energy. At this time, the energization of the ignition coilis controlled such that releasing of the second electric energy is stopped at a timing that depends on a state of gas around the ignition plugso that the discharge of the ignition plugis stopped.