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公开(公告)号：US11680536B2
公开(公告)日：2023-06-20
申请号：US17424362
申请日：2020-01-23
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine
IPC: F02D41/30 , F02D41/06 , F02M37/08 , F02M51/04 , F02M59/02 , F02M59/10 , F04B17/04 , F04B49/02 , F04B49/06 , F04B49/08
CPC classification number: F02D41/3082 , F02D41/062 , F02M37/08 , F02M51/04 , F02M59/025 , F02M59/10 , F04B17/04 , F04B49/022 , F04B49/065 , F04B49/08 , F04B2203/0401
Abstract: Disclosed is a method for managing a piston pump using a computer of a vehicle, the pump including a guide, a piston slidably mounted in the guide, and a solenoid, suitable for moving the piston, the method including, as long as the fuel pressure in the compression chamber of the pump is below a predetermined pressure threshold, a step of the computer controlling the solenoid in order to move the piston to its high position, and a step of the computer detecting that the predetermined pressure threshold has been exceeded when the current value, measured after a predetermined period, is greater than or equal to a predetermined reference value so that the computer ceases to control the solenoid.
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公开(公告)号：US11333113B2
公开(公告)日：2022-05-17
申请号：US17282684
申请日：2019-10-02
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine , Xavier Belin
Abstract: Disclosed is a method for detecting the clogging of an air filter including the following steps when the cross section for the passage of air in an intake tract is greater than a predetermined passage cross section: measuring a pressure in the intake tract at the end of a phase of admitting air into a cylinder; measuring a pressure in the intake tract at the end of an exhaust phase in a cylinder; and determining that the air filter is clogged by comparison between at least one pressure measured during a pressure measurement at the end of the phase of admitting air into a cylinder and, on the other hand, a pressure measured during a pressure measurement at the end of the exhaust phase, the filter being estimated to be clogged when the comparison yields a value higher than a predetermined value.
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公开(公告)号：US20230212998A1
公开(公告)日：2023-07-06
申请号：US18020170
申请日：2021-09-14
Applicant: Vitesco Technologies GmbH
Inventor： Xavier Moine
IPC: F02D41/34
CPC classification number: F02D41/34 , F02D2200/0408 , F02D2200/0402
Abstract: A method for estimating pressure in an intake manifold of an indirect injection combustion engine. A pressure sensor measures pressure in the intake manifold, the intake manifold being in fluidic communication with a combustion cylinder, a piston guided in translation in the combustion cylinder and connected to a rotating crankshaft. The method includes: measuring, with the pressure sensor, a maximum pressure corresponding substantially to a maximum pressure in the intake manifold during a preceding cycle of the engine; measuring, with the pressure sensor, a minimum pressure corresponding substantially to a minimum pressure in the intake manifold during the preceding cycle of the engine; determining a pre-calculated average pressure correction factor from a crankshaft angular position and from an engine speed; and estimating the pressure in the intake manifold for the crankshaft angular position of the current engine cycle from the average correction factor and from the minimum and maximum pressures.
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4.发明授权公开(公告)号：US11415072B2
公开(公告)日：2022-08-16
申请号：US17298883
申请日：2019-12-04
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine , Yohan Dupouy
Abstract: A method for controlling an internal combustion engine with a crankshaft position sensor, intake air pressure sensor and fresh air intake throttle valve, includes: determining the engine's rotational speed based on the crankshaft position derivative relative to time; determining the intake air pressure for a first crankshaft position corresponding to 180° before top dead center; determining the intake air pressure for a second crankshaft position corresponding to 390° before top dead center; determining an atmospheric pressure learning pressure threshold based on the engine's rotational speed; determining whether the difference between the intake air pressures for the first and second crankshaft positions is below the atmospheric pressure learning pressure threshold; if so, commanding atmospheric pressure learning by applying a first-order filter to the intake air pressure for the second crankshaft position; and controlling the internal combustion engine as a function of the learned atmospheric pressure value.
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公开(公告)号：US12065982B2
公开(公告)日：2024-08-20
申请号：US18012192
申请日：2021-08-12
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine , Yohan Dupouy
CPC classification number: F02D41/22 , F02D41/1454 , F02D41/182 , F02D41/2454 , F02D2200/0404 , F02D2200/0406
Abstract: Disclosed is a method for establishing an engine maintenance diagnosis. The engine includes a throttle which regulates air access into an air intake system of the engine, a position sensor which measures the position of the throttle, a manifold in fluidic communication with the throttle, a pressure sensor which measures the pressure in the manifold, at least one intake valve, a richness probe which measures an oxygen level and a richness controller for modifying the proportions of air and fuel in the air-fuel mixture. The method uses two air flow measurements in order to identify a problem in the throttle or the play at the valves.
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240167855A1
公开(公告)日：2024-05-23
申请号：US18283588
申请日：2022-04-08
Applicant: Vitesco Technologies GmbH
Inventor： Xavier Moine
CPC classification number: G01D18/001 , G01D3/022 , G01D5/145 , G01D5/2449 , G01D5/24495 , G01P3/487 , G01P3/488
Abstract: A method for adapting to the tolerances of a system including at least one position sensor and a rotary target. When the target rotates, the sensor(s) detects (detect) a predefined singularity on the target at an instant T_i, including: acquisition of a series of n+1 instants T_0 to T_N corresponding to a rotation R of the target; determination of theoretical values Theo_i for each instant T_i while considering that the time corresponds to the time that the target takes to effect the rotation R, taking account of any acceleration during the rotation R and as a function of a position of the predefined singularities on an ideal target produced without tolerance; conversion of the time difference between Theo_i and T_i into an angular difference A_i for a corresponding singularity of the target detected by a sensor; and memory-storage of the angular differences A_i for each singularity of the target.
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公开(公告)号：US11428176B2
公开(公告)日：2022-08-30
申请号：US17287243
申请日：2019-10-22
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine
Abstract: Disclosed is a method for controlling a speed of a vehicle combustion engine, the engine including at least one combustion chamber, into which a mixture of air and fuel is injected, and an air box, configured to inject the air into the combustion chamber and having an air flow rate controlled by a regulating butterfly valve, the regulating butterfly valve having a variable angular position, controlled by a predetermined position of an actuator. The method includes the steps of evaluating a so-called “load” resistant torque resulting from a plurality of external loads applied to the engine, determining, from the calculated load resistant torque, a position of the actuator, so as to determine an angular position of the regulating butterfly valve, and controlling the position of the actuator, so as to control the engine speed.
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公开(公告)号：US11976601B2
公开(公告)日：2024-05-07
申请号：US18022014
申请日：2021-11-17
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier Moine
CPC classification number: F02D41/0002 , F02D41/008 , F02D2200/0614 , F02D2200/101
Abstract: Disclosed is a method for controlling combustion in an internal combustion engine including, on the one hand, an air inlet pipe provided with an air flow regulator in the pipe and, on the other hand, a single cylinder associated with the regulator, and including the following steps: determining the engine speed and/or load; and when the speed is below a predetermined value and/or the engine load is below a predetermined value, the air flow regulator in the inlet pipe is operated in such a way that the air flow is temporarily reduced during the engine cycle compared with the position that the butterfly-type throttle valve occupies during the other strokes of the engine cycle, while an intake valve that lets air from the inlet pipe into the corresponding cylinder is open.
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公开(公告)号：US11835133B2
公开(公告)日：2023-12-05
申请号：US17264996
申请日：2019-07-18
Applicant: VITESCO TECHNOLOGIES GmbH
Inventor： Xavier Moine , Guillaume Lhermite
Abstract: Disclosed is a pulley having: a shaft; a first shroud, called the fixed shroud, mounted so as to be unable to move in translation with respect to the shaft; a second shroud, called the movable shroud, mounted to be driven in rotation by the shaft but is able to move longitudinally with respect to the latter; a mechanism for mechanically controlling the longitudinal movement of the second shroud with respect to the shaft, having: —a first assembly, which is mounted on the shaft and driven in rotation by the latter, —a second assembly, which is mounted on the shaft by way of at least one torsion spring such that the relative angular position of the second assembly with respect to the shaft depends on the torque transmitted by the shaft, and —a device for locking in at least one position between the first assembly and the second assembly.
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公开(公告)号：US11808230B2
公开(公告)日：2023-11-07
申请号：US18020170
申请日：2021-09-14
Applicant: Vitesco Technologies GmbH
Inventor： Xavier Moine
IPC: F02D41/34
CPC classification number: F02D41/34 , F02D2200/0402 , F02D2200/0408
Abstract: A method for estimating pressure in an intake manifold of an indirect injection combustion engine. A pressure sensor measures pressure in the intake manifold, the intake manifold being in fluidic communication with a combustion cylinder, a piston guided in translation in the combustion cylinder and connected to a rotating crankshaft. The method includes: measuring, with the pressure sensor, a maximum pressure corresponding substantially to a maximum pressure in the intake manifold during a preceding cycle of the engine; measuring, with the pressure sensor, a minimum pressure corresponding substantially to a minimum pressure in the intake manifold during the preceding cycle of the engine; determining a pre-calculated average pressure correction factor from a crankshaft angular position and from an engine speed; and estimating the pressure in the intake manifold for the crankshaft angular position of the current engine cycle from the average correction factor and from the minimum and maximum pressures.
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