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公开(公告)号：US20210324946A1
公开(公告)日：2021-10-21
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：US20230333574A1
公开(公告)日：2023-10-19
申请号：US18028657
申请日：2022-01-06
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier MOINE
IPC: G05D7/06
CPC classification number: G05D7/0623 , G05D7/0635
Abstract: A combustion engine throttle body includes an air circulation duct with a throttle valve rotationally mounted therein, a DC electric motor opening or closing of the throttle valve and includes a rotor having a cogging torque that oscillates with a predefined period. A position sensor measures the throttle valve position. An electronic control unit receives the position values of the throttle valve, calculates a throttle valve compensation angle value between zero and the value of the predefined period of the cogging torque from the measured opening angle of the throttle valve, from the predefined period value of the cogging torque, and from the predetermined angle correction value for the throttle valve, determines a command signal value for the electric motor from a predetermined correspondence table and from the calculated compensation angle value for the throttle valve, and commands the electric motor based on the determined command signal value.
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公开(公告)号：US20230265807A1
公开(公告)日：2023-08-24
申请号：US18012192
申请日：2021-08-12
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier MOINE , Yohan DUPOUY
CPC classification number: F02D41/22 , F02D41/182 , F02D41/1454 , 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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4.发明申请公开(公告)号：US20220018303A1
公开(公告)日：2022-01-20
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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Patent Agency Ranking
公开(公告)号：US20230349335A1
公开(公告)日：2023-11-02
申请号：US18022014
申请日：2021-11-17
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier MOINE
IPC: F02D41/00
CPC classification number: F02D41/0002 , F02D41/008 , F02D2200/101 , F02D2200/0614
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：US20220090557A1
公开(公告)日：2022-03-24
申请号：US17424362
申请日：2020-01-23
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier MOINE
IPC: F02D41/30 , F02M51/04 , F02M59/02 , F02M59/10 , F04B17/04 , F04B49/02 , F04B49/06 , F04B49/08 , F02D41/06 , F02M37/08
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：US20210388800A1
公开(公告)日：2021-12-16
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：US20210381454A1
公开(公告)日：2021-12-09
申请号：US17287231
申请日：2019-10-22
Applicant: VITESCO TECHNOLOGIES GMBH
Inventor： Xavier MOINE
IPC: F02D41/02
Abstract: Disclosed is a method for regulating the speed of an engine which drives a disengageable device. The regulation of the engine speed is effected in accordance with a first mode when the disengageable device is disengaged and in accordance with a second mode when the disengageable device is engaged. The determination is effected by: —estimating the resistive torque exerted on the engine by the disengageable device; —changing a binary value from a first value representative of the disengaged state to a second value representative of the engaged state when the estimated resistive torque is higher than a first predetermined threshold for a first predetermined period of time; and —changing the binary value from the second value to its first value when, for a second predetermined period of time, the estimated resistive torque is lower than a second threshold possibly equal to the first threshold.
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公开(公告)号：US20210381450A1
公开(公告)日：2021-12-09
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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