Method and device for adjusting nox estimation in combustion engines
    41.
    发明公开
    Method and device for adjusting nox estimation in combustion engines 审中-公开
    Verfahren und Vorrichtung zur Anpassung der NOx-Schätzungin Verbrennungsmotoren

    公开(公告)号:EP2617975A1

    公开(公告)日:2013-07-24

    申请号:EP13160587.5

    申请日:2009-12-23

    Abstract: The present invention provides for a system for adjusting NOx estimations based on the calculation of an error given by the difference between a first measured value obtained from a NOx sensor (7") and a second one estimated from a NOx estimation (6"). Said sensor (7") can be used in an adaptation loop so as the expected NOx emissions match the ones measured with the NOx sensor under steady-state conditions.

    Abstract translation: 本发明提供一种用于基于由从NOx传感器(7“)获得的第一测量值与从NOx估计(6”)估计的第二测量值之间的差给出的误差的计算来调整NOx估计的系统。 所述传感器(7“)可用于适应环路中,以使预期的NOx排放与在稳态条件下用NOx传感器测量的NOx排放量相匹配。

    A VALVE TRAIN FOR OPERATING A CYLINDER VALVE ASSEMBLY FOR AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:EP4086438A1

    公开(公告)日:2022-11-09

    申请号:EP22171164.1

    申请日:2022-05-02

    Abstract: A valve train for operating a cylinder valve assembly for an internal combustion engine comprising a valve bridge (VB) including a casing (CS) wherein is slidably inserted a lost motion assembly (LMA), wherein the lost motion assembly includes an outer plunger (OP) having a longitudinal development (X) arranged to receive a main rocker arm action and to transmit such action to the valve bridge through a locking element (LE), wherein, said outer plunger (OP) includes an axial cavity (CV) where an inner plunger (IP) is suitable to slide in response of oil pressurization; the lost motion assembly being configured to define a clearance (CC) between a bottom portion (BP) of the casing and a bottom portion (BP1) of the outer plunger (OP) configured to receive pressurized oil and wherein said casing (CS) is provided of a passing through opening (MO) to discharge said pressurized oil in such a way to dump a sudden restriction of the clearance (CC) caused by lost motion activation.

    A CONDITIONING APPARATUS FOR AN ENGINE AND CONTROL METHODS THEREOF

    公开(公告)号:EP4071339A1

    公开(公告)日:2022-10-12

    申请号:EP21206568.4

    申请日:2021-11-04

    Inventor: FESSLER, Harald

    Abstract: A conditioning apparatus (CA; CAE) for an engine (ICE) includes a conditioning device (CD) with a first opening (II) for receiving the medium and a second and a third opening (O1, 02) for releasing a medium to a first and a second temperature level, a delivery line (DL) connected to the second opening (O1) to bring the medium to the engine (ICE) and comprising an adjusting assembly (Tl) to control a first flow (Al) of the medium from the second opening (O1) toward the engine (ICE), a return line (RL) connected to the first opening (II) to supply the conditioning device (CD) with the medium heated by the engine (ICE), a charge air cooler (CAC) for cooling an intake air flow of the engine (ICE) by means of the medium, and an additional line (AL) passing through the charge air cooler (CAC) to conduct the medium from the third opening (02) to the return line (RL) and having a second adjusting assembly (T2; T4) to control a second flow (Bl; Bl, C2) of the medium from the third opening (02) toward the charge air cooler (CAC).

    AN ENGINE ASSEMBLY HAVING AN ENGINE AND A LUBRICATION SYSTEM FOR DELIVERING LUBRICATING OIL TO THE ENGINE

    公开(公告)号:EP3828394A1

    公开(公告)日:2021-06-02

    申请号:EP20209600.4

    申请日:2020-11-24

    Abstract: An engine assembly (1) is provided with an engine (2) and with a lubrication system (3) for circulating oil from/to the engine (2) and including an oil circuit (12) and an oil conditioning apparatus (23, 21) for allowing temperature conditioning of the circulating oil, wherein the engine assembly further include a sensor assembly (28) for detecting values associated to operative parameters of the engine (2), as well as for generating a first signal associated to the detected values, and a control unit (ECU) that receives the first signal and extract a first amount of information therefrom relative to values of the operative parameters, wherein the oil conditioning apparatus (23) includes also an adjustment device (27) that is controllable to cause a temperature variation of a portion of the circulating oil, and wherein the control unit (ECU) controls the adjustment device (27) based on the extracted first amount of information.

    INTERNAL COMBUSTION ENGINE ARRANGEMENT AND OPERATION THEREOF

    公开(公告)号:EP3800336A1

    公开(公告)日:2021-04-07

    申请号:EP20210449.3

    申请日:2018-04-26

    Inventor: FESSLER, Harald

    Abstract: Internal combustion engine arrangement comprising an internal combustion engine (ICE), a turbocharger (TC) comprising a turbine (TB) and a compressor (TCP) and a variable compressor (ESC) arranged between the internal combustion engine and said compressor (TCP) and control means (ECU) arranged to control said variable compressor according to at least one of the following options: 1) to throttle the intake, on the basis of at least one component temperature of an After-treatment system (ATS) connected to said exhaust line, in order to warm up said ATS component; 2) to control a rack position of the turbine having variable geometry in order to maintain the turbocharger in an optimal operating condition and to control said variable compressor so as to achieve a predetermined combustion engine boost level.

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