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1. 发明申请

US20230126002A1 METHODS AND SYSTEMS FOR DIAGNOSING ENGINE CYLINDERS 有权
公开(公告)号：US20230126002A1
公开(公告)日：2023-04-27
申请号：US17452209
申请日：2021-10-25
申请人： Transportation IP Holdings, LLC
发明人： Prashant Kumar , David Schroeck
IPC分类号： F02D41/22 , F02D41/14 , F02D41/00 , F02D41/30 , G01M15/12 , B61C5/00
摘要： Systems and methods are provided for diagnosing cylinders in an engine. In one example, the method may include while receiving first feedback from a vibration sensor coupled to a first cylinder of the engine, perturbing the first cylinder during engine operation. Responsive to the first feedback indicating a first vibration level difference greater than or equal to a first threshold difference, a first indication of a first degradation condition of the first cylinder may be set, and thereafter the engine may be operated based on whether or not the first indication was set.

2. 发明申请

US20230068226A1 METHOD, DEVICE, AND GRAPHICAL USER INTERFACE FOR ANALYSING A MECHANICAL OBJECT 有权
公开(公告)号：US20230068226A1
公开(公告)日：2023-03-02
申请号：US17794975
申请日：2021-01-27
申请人： MTU Aero Engines AG
发明人： Daniel Theurich , Michael Junge
IPC分类号： G01M13/00 , G01M15/12
摘要： The disclosure is directed to a method comprising the steps: carrying out multiple measurements on a mechanical object, the measurements each differing by one or more parameters influencing the measurement; determining a spectrogram on the basis of the measurement data of the measurements and depending on a predefined parameter of the mechanical object; determining one or more excitations of the mechanical object; reproducing the excitations in the spectrogram.

3. 发明申请

US20220406102A1 KNOCKING DETERMINATION DEVICE AND KNOCKING CONTROL DEVICE 有权
公开(公告)号：US20220406102A1
公开(公告)日：2022-12-22
申请号：US17894749
申请日：2022-08-24
申请人： DENSO CORPORATION
发明人： Yuuki TSUCHIYA , Masanori KUROSAWA , Kou TANAKA , Kazuhiro NISHIGAKI
IPC分类号： G07C5/08 , G01M15/12
摘要： A knocking determination device detects a vibration generated in an internal combustion engine during a predetermined period in each combustion cycle of the internal combustion engine. The knocking determination device performs a knocking determination of a presence or absence of a knock based on a vibration waveform in a predetermined frequency band component of the vibration detected.

4. 发明授权

US11486483B1 Condition monitoring for components of a gearbox 有权
公开(公告)号：US11486483B1
公开(公告)日：2022-11-01
申请号：US16946818
申请日：2020-07-08
申请人： GPMS International, Inc.
发明人： Eric R. Bechhoefer
IPC分类号： F16H57/01 , F16H59/38 , G01M15/12 , G01M13/02
摘要： Conditioning monitoring is provided for rotating components in gearboxes that accounts for gear system dynamics, allowing for improved analysis. A rotation rate for the component is generated from vibration data by estimating the rotation rate based on a tachometer measurement of another shaft and the shaft ratio. This estimated rotation rate is used, together with the known configuration of the component, to estimate a known gear mesh frequency of the component. By filtering for a range of frequencies around the gear mesh frequency based on variation in the shaft rate, the gear mesh frequency can be determined and from that signal, an actual rotation rate for the component can be determined. The actual or determined rotation rate can then be used in deriving an analytic vibration spectrum for the component that is not degraded due to gear system dynamics effects.

5. 发明申请

US20220270414A1 METHOD OF AI-BASED VEHICLE DIAGNOSIS USING CAN DATA AND DEVICE THEREOF 有权
公开(公告)号：US20220270414A1
公开(公告)日：2022-08-25
申请号：US17376973
申请日：2021-07-15
申请人： Hyundai Motor Company , Kia Corporation , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
发明人： Dong-Chul LEE , In-Soo JUNG , Dong-Yeoup JEON , Joon-Hyuk CHANG
IPC分类号： G07C5/08 , G01M15/12 , G05B13/02
摘要： A device for AI-based vehicle diagnosis using CAN data may include an engine; a vibration sensor mounted in an engine compartment in which the engine is mounted and configured for detecting a vibration signal; and a controller area network (CAN) communicating with one or more of an environmental condition, a vehicle status, an engine status, and an engine control parameter, wherein data preprocessing from the vibration sensor and the CAN is performed to determine features in which correlation between vibration data (dB) exceeding a threshold value of irregular vibrations being generated by the engine and the CAN data is equal to or greater than 90%.

6. 发明授权

US11346740B2 Engine oil dipstick monitoring apparatus 有权
公开(公告)号：US11346740B2
公开(公告)日：2022-05-31
申请号：US16623099
申请日：2018-06-27
申请人： Perkins Engines Company Limited
发明人： Christopher J. Green
IPC分类号： G01L23/30 , F01M11/12 , G01F23/04 , F01M13/00 , G01M15/05 , G01M15/12
摘要： An engine oil dipstick for monitoring an internal combustion engine comprises a processor and a sensor module. The sensor module is configured to sense a characteristic of the internal combustion engine and to output data representative of the sensed characteristic to the processor. The engine oil dipstick is configured to provide a housing for the processor. The processor is configured to determine a value representative of the firing frequency of the internal combustion engine based on the output data.

7. 发明授权

US11313761B2 Test system 有权
公开(公告)号：US11313761B2
公开(公告)日：2022-04-26
申请号：US16096548
申请日：2017-04-25
申请人： MEIDENSHA CORPORATION
发明人： Takao Akiyama
IPC分类号： G01M15/02 , G01M15/00 , G01M15/04 , G01M13/025 , G01M15/12 , G01L3/16 , G01M13/02 , G01L3/22 , G01L3/24 , G01M17/007
摘要： The purpose of the present invention is to provide a device for controlling a dynamometer of a test system, wherein the device is capable of controlling shaft torque to a prescribed target torque while minimizing low-frequency-range resonance caused by viscous drag of a test piece. This test system is provided with a dynamometer joined to an engine via a coupling shaft, an inverter for supplying electric power to the dynamometer, a shaft torque meter for detecting the shaft torque produced in the coupling shaft, and a dynamometer-controlling device 6 for generating a torque-current command signal T2 that is sent to the inverter and is generated on the basis of a shaft torque detection signal T12 from the shaft torque meter. The dynamometer-controlling device 6 is provided with an integrator 62 for integrating the difference between the shaft torque detection signal 12 and a shaft torque command signal T12ref, and a phase lead compensator 63 for accepting an output signal from the integrator 62 as an input and performing a phase lead compensation process that uses constants (a1, b1) that are dependent on the viscous drag of the test piece. An output signal from the phase lead compensator 63 is used to generate the torque-current command signal T2.

8. 发明授权

US11215529B1 Remote monitoring of engine performance using accelerometers 有权
公开(公告)号：US11215529B1
公开(公告)日：2022-01-04
申请号：US16587379
申请日：2019-09-30
申请人： Windrock, Inc.
发明人： Brian F. Howard , Mary Margaret Chapman , Michael W. Jones , Patrick Juneji Sullivan , Jeffrey Dylan Abel , Richard Paul Beam
IPC分类号： G01M15/06 , G01M15/05 , F02D35/02 , G01M15/12 , G01M15/11
摘要： A method for aligning cycles of an engine conditioning monitoring system includes: receiving data corresponding to a TDC angle of an engine from a crank angle sensor; receiving data from one or more accelerometers for each cylinder of the engine, the received data including vibration amplitude data; analyzing vibration amplitude data from the one or more accelerometers in relation to data corresponding to the TDC angle of the engine; characterizing vibration data using segmental band analysis, wherein segmental bands of the segmental band analysis correspond to valve closure angles of the engine; identify cylinders for which analyzed vibration amplitude data in relation to the TDC angle of the engine are out of phase; and align vibration amplitude data by shifting analyzed vibration amplitude data relative to the TDC angle of the engine such that vibration amplitude data is aligned with the TDC angle of the engine.

9. 发明授权

US11022053B1 Method and system for providing engine knock detection dynamic gains 有权
公开(公告)号：US11022053B1
公开(公告)日：2021-06-01
申请号：US16893070
申请日：2020-06-04
申请人： Ford Global Technologies, LLC
发明人： Rani Kiwan , Lee McQuinn , Chris Glugla
IPC分类号： F02D35/02 , G01M15/12 , F02P5/152 , F02D13/02 , F02D41/40 , F02D41/38
摘要： Methods and systems for adjusting engine knock control system dynamic gains are presented. In one example, a plurality of tables or functions output gain values, each of which is adjusted via a unique weighting factor. A rectified and integrated engine knock sensor level is adjusted according to a sum of weighted gain output values of the plurality of tables or functions.

10. 发明申请

US20210115860A1 METHOD AND SYSTEM FOR LEARNING CONTRIBUTIONS TO AN ENGINE KNOCK BACKGROUND NOISE LEVEL 有权
公开(公告)号：US20210115860A1
公开(公告)日：2021-04-22
申请号：US17003678
申请日：2020-08-26
申请人： Ford Global Technologies, LLC
发明人： Rani Kiwan , Christopher P. Glugla , Mohannad Hakeem , James M. Kindree
IPC分类号： F02D35/02 , G01M15/12 , G01L23/22
摘要： Methods and systems are disclosed for operating an engine that includes a knock control system that may determine contributions of individual noise sources to an engine background noise level. The contributions of the individual noise sources may be the basis for establishing the presence or absence of knock in one or more engine cylinders.

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