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公开(公告)号：US20240309826A1
公开(公告)日：2024-09-19
申请号：US18679577
申请日：2024-05-31
CPC分类号： F02D41/1406 , F01L13/0005 , F02D35/02 , F02D41/0087 , F02D41/1498 , F02D41/28 , F01L2013/001 , F02D2041/1433 , F02D2041/288 , F02D2250/28
摘要： A system and method for dynamically deactivating engine cylinders of an engine equipped with a cylinder deactivation system, where the system and method control torsional vibration in the engine while deactivating cylinders using a computer programed with a desired firing density and a controlled range of engine vibration frequencies. The computer dynamically determines a cylinder firing pattern that provides the desired firing density while optimizing a cost function norm in the controlled range of engine vibration frequencies. The cylinder deactivation system in the engine is then controlled using the determined cylinder firing pattern.
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公开(公告)号：US11835006B2
公开(公告)日：2023-12-05
申请号：US17676938
申请日：2022-02-22
申请人： DENSO CORPORATION
发明人： Masashi Inaba , Tomoki Fujino
CPC分类号： F02D41/20 , F02D41/221 , F02D41/28 , F02D41/401 , F02D2041/2003 , F02D2041/224 , F02D2041/288
摘要： An energization control unit is configured to perform a constant current control by repeatedly switching between an on-state and an off-state of at least one upstream switch provided in an energization path of a coil of a fuel injection valve to control opening of the fuel injection valve in a drive period in which the coil is energized to drive the fuel injection valve. A current detection unit is configured to detect a coil current flowing through the coil. A valve-opening detection unit is configured to detect valve-opening timing of the fuel injection valve based on a change in at least one frequency spectrum of the coil current in a constant current control period in which the constant current control is performed. A valve-opening correction unit is configured to correct valve opening of the fuel injection valve based on a detection result of the valve-opening detection unit.
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3.发明授权公开(公告)号：US11821382B2
公开(公告)日：2023-11-21
申请号：US17433256
申请日：2020-03-05
发明人： Thomas Burkhardt , Andreas Holzeder
CPC分类号： F02D41/22 , F02D41/1401 , F02D41/28 , F02D2041/1423 , F02D2041/1433 , F02D2041/288 , F02D2200/0406
摘要： The embodiment relates to a method for detecting a power-changing manipulation of an internal combustion engine (100), wherein the internal combustion engine (100) has an intake tract (110) and a pressure sensor (116, 118) which is arranged in the intake tract (110). The method has the following steps:
acquiring a signal profile (440) over a specific time period by means of the pressure sensor (116, 118),
providing a modelled signal profile (430) over the specific time period, from which periodically repeating modelled signal profile sections (432) which are characteristic of expected periodically repeating pressure changes in the intake tract (110) are ascertained,
comparing a signal portion of an acquired signal profile section (442) with the corresponding signal portion of the corresponding modelled signal profile section (432) in order to detect the power-changing manipulation of the internal combustion engine (100).-
4.发明公开公开(公告)号：US20230366339A1
公开(公告)日：2023-11-16
申请号：US18245221
申请日：2021-07-21
申请人： AUDI AG
发明人： Bodo ODENDALL
CPC分类号： F01N11/007 , F02D41/28 , F02D41/1441 , F01N2550/02 , F02D2041/286
摘要： A method for operating an exhaust gas cleaning device for a motor vehicle, the exhaust gas cleaning device has a vehicle catalytic converter, a first lambda probe arranged upstream of the vehicle catalytic converter, and a second lambda probe arranged downstream of the vehicle catalytic converter. A signal gradient is determined chronologically between a first signal jump of a measured value of the first lambda probe and a second signal jump of the measured value in a second direction opposite to the first direction, and a signal delay of a measured value of the second lambda probe is determined after the second signal jump.
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公开(公告)号：US20230304454A1
公开(公告)日：2023-09-28
申请号：US18153549
申请日：2023-01-12
发明人： Yasunari Sato
CPC分类号： F02D41/222 , F02D41/28 , F02D2041/224 , F02D2041/286
摘要： A failure determination device: acquires a second digital value indicating a difference between an analog electrical output generated by inputting a first digital value incremented at a first time interval to a DA conversion circuit and a target output indicated by the first digital value at a second time interval; and determines whether the DA conversion circuit has a failure based on a signal strength in a predetermined frequency of the second digital value that is a discrete signal.
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公开(公告)号：US20190195161A1
公开(公告)日：2019-06-27
申请号：US16329695
申请日：2016-08-31
CPC分类号： F02D41/28 , F02D13/0203 , F02D35/024 , F02D35/027 , F02D35/028 , F02D41/0052 , F02D2041/288 , F02D2200/024 , F02P5/045 , F02P5/1502 , G01L23/221 , G01L23/227
摘要： Systems and methods for estimating an engine event location are disclosed herein. In one embodiment, a control system is configured to receive feedback from at least one knock sensor coupled to a reciprocating engine, estimate an engine parameter based at least on the feedback and an Empirical Transform Function (ETF), estimate a location of an engine event based on the engine parameter, and adjust operation of the reciprocating engine based at least on the location of the engine event.
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公开(公告)号：US10054069B2
公开(公告)日：2018-08-21
申请号：US15243869
申请日：2016-08-22
发明人： Yue-Yun Wang , Lei Hao , Gianmarco Brunetti
CPC分类号： F02D41/0007 , F02B37/04 , F02B37/14 , F02B37/24 , F02B39/10 , F02D41/1401 , F02D41/1402 , F02D41/28 , F02D2041/1409 , F02D2041/141 , F02D2200/0408 , F02D2200/0416 , Y02T10/144
摘要： A two-stage air boosting system for an internal combustion engine has a first air boosting system which is one of an electrical air boosting system or a turbocharger air boosting system. The two-stage air boosting system also includes a second air boosting system which is the other one of the electrical air boosting system or the turbocharger air boosting system and is positioned intermediate the first air boosting system and an air intake manifold of the internal combustion engine. A plurality of sensors provides information relating to operation of the two-stage air boosting system including inlet conditions of a compressor of the second air boosting system. A control module is configured to receive a plurality of inputs including the information relating to operation of the two-stage air boosting system, and is further configured to provide a system control command for the two-stage air boosting system responsive to the inputs.
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公开(公告)号：US10036338B2
公开(公告)日：2018-07-31
申请号：US15139035
申请日：2016-04-26
CPC分类号： F02D41/021 , F01P7/026 , F01P7/16 , F01P7/167 , F01P2025/40 , F01P2025/42 , F01P2025/44 , F01P2025/46 , F02D35/025 , F02D41/1401 , F02D41/26 , F02D41/28 , F02D2041/1412 , F02D2041/1433 , F02D2041/281 , F02D2200/021 , F02D2200/0406 , F02D2200/0414
摘要： A system and approach for development of setpoints for a controller of a powertrain system. The controller may be parametrized as a function of setpoints to provide performance variables that are considered acceptable by a user or operator for current operating conditions of the engine or powertrain. The controller may determine set point trajectories in real time during operation of the powertrain system and determine positions of manipulated variables do drive controlled variables to associated and determined set point trajectories. The present system and approach may determine set point trajectories for powertrain conditions on-line and in real time, whereas set point trajectories have previously been determined off-line for powertrain control.
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公开(公告)号：US09989947B2
公开(公告)日：2018-06-05
申请号：US13971039
申请日：2013-08-20
CPC分类号： G05B19/04 , F02D41/20 , F02D41/28 , F02D2250/12
摘要： Techniques for driving a plurality of inductive actuators are described herein. According to these techniques, a driver unit includes a clock terminal that receives an external clock signal used by an external control unit. The driver unit further includes a serial bus interface configured to communicate with the external control unit via a serial bus. The serial bus is configured to communicate both of trigger commands synchronized to the external clock signal that indicate to at least one of a plurality of programmable control circuits (PCUs) to generate drive signals in response to the trigger commands that are synchronized with the external clock signal and data associated with at least one of the plurality of PCUs and synchronized with the external clock signal, wherein the data is used by the at least one of the plurality of PCUs to generate the drive signals in response to the trigger commands.
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公开(公告)号：US20180148005A1
公开(公告)日：2018-05-31
申请号：US15362085
申请日：2016-11-28
申请人： Jason Haines
发明人： Jason Haines
IPC分类号： B60R16/023 , F02D41/26 , F02D41/30 , F02D41/00
CPC分类号： F02D41/0002 , F02D41/0007 , F02D41/26 , F02D41/28 , F02D2041/285 , F02D2200/0404 , F02D2200/0406 , F02D2200/0414 , F02D2400/08 , F02D2400/11 , Y02T10/144 , Y02T10/42
摘要： The present invention pertains to a system and method for use in a combustion-engine to mediate between sensors and an electronic control unit, in order to facilitate improved, more efficient, better, or alternate desired engine function without modifying or replacing the control unit through the selective modification, combination, or elimination of desired sensor signals.
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