US 11,920,529 B2
Control method and control apparatus for internal combustion engine
Takayoshi Kodama, Kanagawa (JP); and Yoshihiko Iwabuchi, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 17/632,960
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Apr. 15, 2021, PCT No. PCT/JP2021/015531
§ 371(c)(1), (2) Date Oct. 20, 2022,
PCT Pub. No. WO2022/219765, PCT Pub. Date Oct. 20, 2022.
Prior Publication US 2024/0018917 A1, Jan. 18, 2024
Int. Cl. F02D 41/00 (2006.01)
CPC F02D 41/0055 (2013.01) [F02D 41/0052 (2013.01); F02D 2200/501 (2013.01); F02D 2200/703 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A control method of an internal combustion engine mounted on a vehicle and comprising an exhaust gas recirculation device,
the internal combustion engine having: a first output limit which is associated with at least a knock limit and whose value increases with increase of an exhaust gas recirculation rate; and a second output limit which is associated with an output limiting factor including an atmospheric pressure or vehicle running speed and whose value decreases with decrease of the output limiting factor and with increase of the exhaust gas recirculation rate,
the control method comprising setting a target exhaust gas recirculation rate at which the first output limit becomes equal to the second output limit and controlling the exhaust recirculation device according to the target exhaust gas recirculation rate.