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3850 条记录 (耗时 0.049 秒)

    METHODS FOR TRANSIENT FUEL CONTROL COMPENSATION
    43.
    发明申请
    METHODS FOR TRANSIENT FUEL CONTROL COMPENSATION 有权

    公开(公告)号：US20230122923A1

    公开(公告)日：2023-04-20

    申请号：US17451615

    申请日：2021-10-20

    申请人： Ford Global Technologies, LLC

    发明人： Wen Dai ,  Marcus Fried

    IPC分类号： F02D41/30 ,  F02D41/40 ,  F02D13/02 ,  F02D35/02 ,  F02P5/15

    摘要： Methods and systems are provided for an engine for adjusting cylinder parameter settings to optimize engine output during a transient mode. In one example, a method may include adjusting cylinder parameter settings, including a cam timing setting, a spark timing setting, and a fuel injection timing setting based on a chamber temperature in response to a rate of fuel injection acceleration being greater than a positive threshold, thus indicating the engine is in the transient mode.

    METHOD FOR DETECTING AN INVERTED CONNECTION OF THE INTAKE TIMING ACTUATOR AND THE EXHAUST TIMING ACTUATOR
    45.
    发明申请
    METHOD FOR DETECTING AN INVERTED CONNECTION OF THE INTAKE TIMING ACTUATOR AND THE EXHAUST TIMING ACTUATOR 有权

    公开(公告)号：US20230016394A1

    公开(公告)日：2023-01-19

    申请号：US17777933

    申请日：2020-11-16

    申请人： VITESCO TECHNOLOGIES GMBH

    发明人： Nicolas OBERTI ,  Fabien JOSEPH

    IPC分类号： F02D13/02 ,  F02D41/00 ,  F02D41/22

    摘要： A method, for an internal combustion engine including an intake camshaft equipped with a variable intake valve timing device including an intake timing actuator and an exhaust camshaft equipped with a variable exhaust valve timing device including an exhaust timing actuator, of detecting inverted connection of the intake timing actuator with the exhaust timing actuator, including: measuring the angular position of the intake camshaft and the angular position of the exhaust camshaft; commanding one of the two timing actuators according to a setpoint and keeping the other of the two timing actuators immobile; measuring the angular positions of the intake camshaft and of the exhaust camshaft; and comparing: if the angular position of the camshaft corresponding to the timing actuator that's been commanded has not been modified, and if the angular position of the camshaft corresponding to the immobile timing actuator has been modified, inverted connection can be diagnosed.

    Stoichiometric high-temperature direct-injection compression-ignition engine
    46.
    发明授权
    Stoichiometric high-temperature direct-injection compression-ignition engine 有权

    公开(公告)号：US11542856B2

    公开(公告)日：2023-01-03

    申请号：US16017333

    申请日：2018-06-25

    申请人： The Board of Trustees of the Leland Stanford Junior University

    发明人： Christopher F. Edwards ,  Bernard H. Johnson, IV ,  Gregory B. Roberts

    IPC分类号： F02D41/00 ,  F02B3/08 ,  F02D13/02 ,  F02D19/06 ,  F02D41/14 ,  F02B23/06 ,  F02M26/05 ,  F02M26/23

    摘要： A neat-fuel direct-injected compression ignition engine having a thermal barrier coated combustion chamber, an injection port injects fuel that satisfies a stoichiometric condition with respect to the intake air, a mechanical exhaust regenerator transfers energy from exhaust gas to intake compression stages, an exhaust O2 sensor inputs to a feedback control to deliver quantified fuel, a variable valve actuation (VVA) controls valve positions, an exhaust gas temperature sensor controls exhaust feedback by closing the exhaust valve early according to the VVA, or recirculated to the chamber with an exhaust-gas-recirculation (EGR), heat exchanger, and flow path connecting an air intake, a load command input, and a computer operates the EGR from sensors to input exhaust gas according exhaust temperature signals and changes VVA timing, the load control is by chamber exhaust gas, the computer operates a fuel injector to deliver fuel independent of exhaust gas by the O2 signals.

    A METHOD FOR CONTROLLING A VALVE ARRANGEMENT
    50.
    发明申请
    A METHOD FOR CONTROLLING A VALVE ARRANGEMENT 有权

    公开(公告)号：US20220389878A1

    公开(公告)日：2022-12-08

    申请号：US17756010

    申请日：2019-11-13

    申请人： VOLVO TRUCK CORPORATION

    发明人： Per PERSSON ,  Martin SVENSSON

    IPC分类号： F02D13/02 ,  F02D41/02 ,  F01L13/00 ,  F01L1/053 ,  F01L1/344

    摘要： A method for controlling a valve arrangement for an internal combustion engine, the valve arrangement including a piston arrangement comprising a piston having a piston end portion facing an inlet valve of the valve arrangement. The method includes receiving a signal indicative of a temperature level of an exhaust gas after treatment system and when the signal indicates a temperature level below a predetermined threshold level: advancing an exhaust event of the internal combustion engine; and controlling the piston arrangement for reducing the distance between the piston end portion and the inlet valve before the internal combustion engine assumes an air intake event.