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公开(公告)号：US08973429B2
公开(公告)日：2015-03-10
申请号：US13775628
申请日：2013-02-25
Applicant: GM Global Technology Operations LLC
Inventor： J. Michael Gwidt , Kevin M. Luchansky , Craig M. Sawdon , Wajdi B. Hamama
CPC classification number: G01M15/11 , G01L23/225
Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.
Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。
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12.发明申请公开(公告)号：US20140238120A1
公开(公告)日：2014-08-28
申请号：US13775628
申请日：2013-02-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Kevin M. Luchansky , Craig M. Sawdon , Wajdi B. Hamama
IPC: G01M15/11
CPC classification number: G01M15/11 , G01L23/225
Abstract: A system according to the principles of the present disclosure includes a vibration intensity module and a stochastic pre-ignition (SPI) detection module. The vibration intensity module determines a vibration intensity of an engine over a first engine cycle and a second engine cycle. The first engine cycle and the second engine cycle each correspond to a predetermined amount of crankshaft rotation. The SPI detection module selectively detects stochastic pre-ignition when the vibration intensity of the first engine cycle is less than a first threshold and the vibration intensity of the second engine cycle is greater than a second threshold.
Abstract translation: 根据本公开原理的系统包括振动强度模块和随机预点火（SPI）检测模块。 振动强度模块确定发动机在第一发动机循环和第二发动机循环中的振动强度。 第一发动机循环和第二发动机循环各自对应于预定量的曲轴旋转。 当第一发动机循环的振动强度小于第一阈值并且第二发动机循环的振动强度大于第二阈值时，SPI检测模块选择性地检测随机预点火。
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公开(公告)号：US11773791B1
公开(公告)日：2023-10-03
申请号：US17987085
申请日：2022-11-15
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Daniel P. Himes , Mark D. Carr , Jonathan A. Law , Jeffrey M. Hutmacher
CPC classification number: F02D13/0219 , F02D41/221 , F02D41/3017 , F02D41/402 , F02D41/403 , F02D41/405 , F02D2041/224 , F02D2200/0618 , F02D2200/1015
Abstract: Presented are multi-pulse fuel injection systems for monitoring engine fuel injectors for missed pulses, methods for making/using such systems, and vehicles equipped with such systems. A method of operating a fuel injection system includes an engine controller determining if the system's injectors are operating in a multi-pulse mode for injecting multiple fuel pulses per combustion cycle to an engine's cylinders and, if so, monitoring pulse signals transmitted to the injectors for injecting the multiple fuel pulses. For each combustion cycle for each injector, the controller flags a cylinder misfire if any one of the fuel pulses for that combustion cycle is missed. For each cylinder, the controller calculates a misfire ratio of a total number of cylinder misfires to a total number of combustion cycles; if one of these misfire ratios exceeds a calibrated misfire limit, the controller commands a resident subsystem to execute control operations to mitigate the misfires.
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公开(公告)号：US11754013B1
公开(公告)日：2023-09-12
申请号：US17651656
申请日：2022-02-18
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Daniel P Himes
IPC: F02D41/24
CPC classification number: F02D41/2467 , F02D41/2422 , F02D41/2487 , F02D2200/0614
Abstract: In accordance with exemplary embodiments, methods and systems are provided for controlling fuel injection by a fuel injector of a direct injection engine. In one embodiment, a method includes: storing, in a first data storage device, a first table of values; storing, in a second data storage device, a second table of values; and adjusting, via instructions provided by a processor of the vehicle, a minimum mass value used to control the fuel injection based on an injector learned value, the first table, and the second table, wherein the injector learned value is set based on an amount of injector learning completed.
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公开(公告)号：US11686264B1
公开(公告)日：2023-06-27
申请号：US17822172
申请日：2022-08-25
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Daniel P. Himes
CPC classification number: F02D41/029 , F02D13/0261 , F02D41/0007 , F02D41/1446 , F02D41/1466
Abstract: In accordance with exemplary embodiments, methods and systems are provided for controlling particulate filter regeneration for a particulate filter of a drive system of a vehicle, including: obtaining sensor data pertaining to the drive system via one or more sensors of the vehicle; determining, via a processor of the vehicle, when particulate filter regeneration is warranted, using the sensor data; and providing particulate filter regeneration while performing scavenging with respect to the drive system, via instructions provided by the processor, when it is determined that particulate filter regeneration is warranted.
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Patent Agency Ranking
公开(公告)号：US11614042B1
公开(公告)日：2023-03-28
申请号：US17664404
申请日：2022-05-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Andrew B Gillett , Karen Margaret-Bell Gwidt
Abstract: Methods and systems for enabling regeneration of a particulate filter of an engine system are provided. In one embodiment, a method includes: receiving, by a processor, a request for particulate filter regeneration; in response to the request, determining, by the processor, at least one of a compression ratio and an expansion ratio; generating, by the processor, control signals to actuators of the engine system to adjust the at least one of the compression ratio and the expansion ratio to achieve a desired exhaust temperature; generating, by the processor, control signals to actuators of the engine system to optimize torque output based on the desired exhaust temperature, engine speed, and a desired engine load; and initiating, by the processor, regeneration of the particulate filter based on the command signals.
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公开(公告)号：US09115684B2
公开(公告)日：2015-08-25
申请号：US13893758
申请日：2013-05-14
Applicant: GM Global Technology Operations LLC
Inventor： Rafat F. Hattar , J. Michael Gwidt , Bradford W. Bur
CPC classification number: F02N11/103 , F02D41/062 , F02D2200/101 , F02D2200/602 , F02N11/106 , F02N2200/103
Abstract: An engine control system of a vehicle includes a starter control module and an abort module. When a clutch pedal is depressed and a user activates an ignition system, the starter control module engages a starter motor with an engine and applies current to the starter motor. The abort module selectively generates an abort signal when the clutch pedal is released. The starter control module disengages the starter motor and disables current flow to the starter motor when the abort signal is generated.
Abstract translation: 车辆的发动机控制系统包括起动器控制模块和中止模块。 当按下离合器踏板并且用户启动点火系统时，起动器控制模块将起动电动机与发动机接合并向起动电动机施加电流。 当释放离合器踏板时，中止模块选择性地产生中止信号。 启动器控制模块使起动马达脱离，当产生中止信号时，禁止起动马达的电流流动。
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公开(公告)号：US20140343812A1
公开(公告)日：2014-11-20
申请号：US13893758
申请日：2013-05-14
Applicant: GM Global Technology Operations LLC
Inventor： Rafat F. Hattar , J. Michael Gwidt , Bradford W. Bur
IPC: F02N11/10
CPC classification number: F02N11/103 , F02D41/062 , F02D2200/101 , F02D2200/602 , F02N11/106 , F02N2200/103
Abstract: An engine control system of a vehicle includes a starter control module and an abort module. When a clutch pedal is depressed and a user activates an ignition system, the starter control module engages a starter motor with an engine and applies current to the starter motor. The abort module selectively generates an abort signal when the clutch pedal is released. The starter control module disengages the starter motor and disables current flow to the starter motor when the abort signal is generated.
Abstract translation: 车辆的发动机控制系统包括起动器控制模块和中止模块。 当按下离合器踏板并且用户启动点火系统时，起动器控制模块将起动电动机与发动机接合并向起动电动机施加电流。 当释放离合器踏板时，中止模块选择性地产生中止信号。 启动器控制模块使起动马达脱离，当产生中止信号时，禁止起动马达的电流流动。
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公开(公告)号：US11852089B1
公开(公告)日：2023-12-26
申请号：US18305065
申请日：2023-04-21
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Matthew Pruski
CPC classification number: F02D41/0255 , F16H45/00 , F16H2045/005
Abstract: An engine consumes fuel and air to generate an exhaust gas stream. An exhaust system channels the exhaust gas stream from the engine to a tailpipe. An aftertreatment system is included in the exhaust system and includes a catalyst. A transmission system is coupled with the engine. The transmission system includes a transmission and a torque converter coupled with the transmission through a shaft. A lock is included in the transmission system to selectively prevent rotation of the shaft to increase a load on the engine by the torque converter.
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公开(公告)号：US11661902B1
公开(公告)日：2023-05-30
申请号：US17660712
申请日：2022-04-26
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Jeffrey M Hutmacher
CPC classification number: F02D41/36 , F02D19/081 , F02D19/084 , F02D19/085 , F02D19/087 , F02D19/088 , F02D41/40 , F02D2041/389 , F02D2200/0611
Abstract: Methods and systems for flex fuel engines that have both port fuel injection and direct injection. Operating an engine system includes determining a percent of ethanol in a fuel and determining whether the percent of ethanol is greater than a predetermined threshold. When the percent of ethanol is greater than the predetermined threshold, fuel is supplied only through the direct injection injectors. When the percent of ethanol is not greater than the predetermined threshold, fuel is supplied through a combination of the direct injection injectors and port fuel injection injectors.
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