US 12,467,415 B2
Air handling systems and controls for internal combustion engines operating with a miller cycle
Ke Wang, Wuhan (CN); Kai Zou, Wuhan (CN); Chengxiu Huang, Hubei (CN); and Timothy Shipp, Seymour, IN (US)
Assigned to Cummins Inc., Columbus, IN (US)
Appl. No. 18/864,989
Filed by Cummins Inc., Columbus, IN (US)
PCT Filed Jun. 29, 2022, PCT No. PCT/CN2022/102339
§ 371(c)(1), (2) Date Nov. 12, 2024,
PCT Pub. No. WO2024/000264, PCT Pub. Date Jan. 4, 2024.
Prior Publication US 2025/0314213 A1, Oct. 9, 2025
Int. Cl. F02D 41/00 (2006.01); F02B 37/013 (2006.01); F02B 37/10 (2006.01); F02B 39/10 (2006.01)
CPC F02D 41/0007 (2013.01) [F02B 37/013 (2013.01); F02B 37/10 (2013.01); F02B 39/10 (2013.01)] 20 Claims
OG exemplary drawing
 
16. A method, comprising:
operating a valve train of an internal combustion engine with a Miller cycle;
detecting a transient event during operation of the valve train with the Miller cycle;
in response to the transient event, initiating operation of an electric turbo motor to boost compression of an intake flow from a first stage of a multi-stage turbocharger system to a second stage of the multi-stage turbocharger system; and
further compressing the boosted compressed intake flow from the first stage with the second stage of the multi-stage turbocharger system upstream of the internal combustion engine.