US 12,286,937 B2
Method of controlling inlet valves and exhaust valves of an internal combustion engine, control arrangement, combustion engine, and vehicle
Hans Göransson, Älvsjö (SE); Henrik Andersson, Lidingö (SE); Pontus Johansson, Hägersten (SE); Joakim Rodebäck, Huddinge (SE); Andreas Dahl, Nyköping (SE); Erik Höckerdal, Södertälje (SE); and Bengt Anderberg, Grödinge (SE)
Assigned to Scania CV AB, Södertälje (SE)
Appl. No. 18/562,129
Filed by Scania CV AB, Södertälje (SE)
PCT Filed May 23, 2022, PCT No. PCT/SE2022/050499
§ 371(c)(1), (2) Date Nov. 17, 2023,
PCT Pub. No. WO2022/250597, PCT Pub. Date Dec. 1, 2022.
Claims priority of application No. 2150675-3 (SE), filed on May 27, 2021.
Prior Publication US 2024/0247616 A1, Jul. 25, 2024
Int. Cl. F02D 13/02 (2006.01); F01L 1/34 (2006.01); F02D 13/04 (2006.01)
CPC F02D 13/0219 (2013.01) [F01L 1/34 (2013.01); F02D 13/0207 (2013.01); F02D 13/0249 (2013.01); F02D 13/04 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method of controlling inlet valves and exhaust valves of a cylinder of an internal combustion engine to obtain an engine braking effect,
wherein the method comprises the steps of:
preventing at least one exhaust valve of the cylinder from closing completely during a plurality of successive intake, compression, expansion, and exhaust strokes of the cylinder,
phase shifting control of the at least one exhaust valve of the cylinder such that opening and closing events of the at least one exhaust valve are advanced as compared to when the cylinder is operating in a power generating mode, and
regulating an amount of air being pumped through the cylinder by phase shifting control of at least one inlet valve of the cylinder.