US 12,006,885 B2
Method for operating an internal combustion engine, in particular of a motor vehicle, and internal combustion engine
Roland Dorfmeister, Dachau (DE); Marcel Kruppa, Munich (DE); and Benjamin Steiner, Karlsfeld (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 18/033,966
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Nov. 2, 2021, PCT No. PCT/EP2021/080344
§ 371(c)(1), (2) Date Apr. 26, 2023,
PCT Pub. No. WO2022/106188, PCT Pub. Date May 27, 2022.
Claims priority of application No. 10 2020 130 841.8 (DE), filed on Nov. 23, 2020.
Prior Publication US 2023/0417197 A1, Dec. 28, 2023
Int. Cl. F02D 13/02 (2006.01); F02D 41/00 (2006.01); F02D 41/10 (2006.01)
CPC F02D 13/0269 (2013.01) [F02D 13/0226 (2013.01); F02D 41/0007 (2013.01); F02D 41/10 (2013.01); F02D 2041/001 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for operating an internal combustion engine which has at least one combustion chamber for combustion operation of the internal combustion engine, the internal combustion engine having an inlet valve which is assigned to the combustion chamber allowing a flow of fresh air from an intake section of the internal combustion engine into the combustion chamber, wherein a load step where a torque provided by the internal combustion engine via an output shaft of the internal combustion engine is increased from a first value to a second value, the second value being higher than the first value, the method comprising:
while the load step is carried out, operating the inlet valve in accordance with a first operating mode which is different than a second operating mode such that the inlet valve is closed after a bottom dead center of a piston of the combustion chamber and is opened for a longer duration in comparison with the second operating mode, and wherein
after the load step is carried out and while the internal combustion engine provides the torque which has the second value via the output shaft, switching from the first operating mode to the second operating mode such that the inlet valve is closed ahead of the bottom dead center of the piston so that the inlet valve is closed for a shorter duration as a result in comparison with the first operating mode.