US 12,110,835 B2
Controller and control method for internal combustion engine
Yuto Ikeda, Okazaki (JP); Ryota Sugiyama, Nagoya (JP); and Takanobu Gotoh, Obu (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP)
Filed on Mar. 31, 2023, as Appl. No. 18/193,702.
Claims priority of application No. 2022-065835 (JP), filed on Apr. 12, 2022.
Prior Publication US 2023/0323831 A1, Oct. 12, 2023
Int. Cl. F02D 41/40 (2006.01); F02D 41/00 (2006.01); F02D 41/38 (2006.01)
CPC F02D 41/402 (2013.01) [F02D 41/0087 (2013.01); F02D 2041/389 (2013.01); F02D 2200/0802 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A controller configured to control an internal combustion engine, the internal combustion engine being configured to execute multi-shot injection in which injection of fuel by an amount requested in a single combustion cycle is split into two or more injections with a time of suspension between each of the two or more injections and single-shot injection in which fuel is injected once by the amount requested in the single combustion cycle, and the internal combustion engine being configured to execute a deactivating process that stops supplying fuel to at least one of cylinders and supplies fuel to the remaining cylinders,
the controller being configured to execute, when terminating the deactivating process to restart supplying fuel to a deactivated cylinder in which supply of fuel is stopped, a retarding process that executes a first fuel injection through the single-shot injection so that a fuel injection start timing is retarded by an amount of time that equals a sum of the time of suspension during the multi-shot injection when injecting fuel by the amount requested in the single combustion cycle.