US 12,146,446 B2
Controlling valve actuation of an internal combustion engine to prevent compressor surge
Erik Höckerdal, Södertälje (SE); Stefan Orrling, Stockholm (SE); Oskar Leufven, Södertälje (SE); Erik Lind, Stockholm (SE); and John Kroon, Södertälje (SE)
Assigned to Scania CV AB, Södertälje (SE)
Appl. No. 18/265,014
Filed by Scania CV AB, Södertälje (SE)
PCT Filed Nov. 5, 2021, PCT No. PCT/SE2021/051106
§ 371(c)(1), (2) Date Jun. 2, 2023,
PCT Pub. No. WO2022/124958, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 2051445-1 (SE), filed on Dec. 11, 2020.
Prior Publication US 2024/0011428 A1, Jan. 11, 2024
Int. Cl. F02D 13/02 (2006.01); F02B 37/12 (2006.01); F02D 41/00 (2006.01)
CPC F02D 13/0219 (2013.01) [F02B 37/12 (2013.01); F02D 13/0203 (2013.01); F02D 13/0265 (2013.01); F02D 41/0007 (2013.01); F02B 2037/122 (2013.01); F02B 2037/125 (2013.01); F02D 2041/001 (2013.01); Y02T 10/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for controlling valve actuation of an internal combustion engine (ICE), the ICE comprising an exhaust valve, an intake valve, a turbo compressor, and an electronic control unit (ECU) for controlling operation of the ICE, wherein the method comprises:
determining that the ECU is implementing valve actuation changes to the exhaust and intake valves based on target actuation settings determined by the ECU; and
limiting and/or preventing such valve actuation changes from being implemented by the ECU, wherein said limiting of determined valve actuation changes is based on compressor data including surge limit data for the turbo compressor and one or both of a current turbo compressor rotational speed and a current turbo compressor pressure ratio, so as to maintain a turbo compressor mass flow above a limit mass flow value and prevent or limit compressor surge events.