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Patent Agency Ranking
公开(公告)号：US11466641B1
公开(公告)日：2022-10-11
申请号：US17649749
申请日：2022-02-02
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Vitor Lanznaster Penteado
Abstract: In accordance with exemplary embodiments, methods and systems are provided for controlling knocking for an engine of a vehicle having a plurality of different types of fuel injectors and a combustion chamber. In an exemplary embodiment, the system includes one or more sensors of the vehicle and a processor. The one or more sensors are configured to measure an intensity of engine knocking for the engine. The processor is coupled to the one or more sensors, and is configured to at least facilitate adjusting a fuel injection ratio of respective amounts of fuel provided by the plurality of different types of fuel injectors to the combustion chamber, based on the intensity of the engine knocking.
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公开(公告)号：US10823101B1
公开(公告)日：2020-11-03
申请号：US16674571
申请日：2019-11-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： J. Michael Gwidt , Daniel P. Himes , Andrew M. Shaw
Abstract: A method of operating a fuel injector includes determining a fuel pressure and a total fuel mass MTF to be injected per combustion cycle, defining first and second pulse widths PW1 and PW2 corresponding to first and second commanded fuel masses CM1 and CM2 wherein CM1+CM2=MTF, actuating the injector for the first and second pulse widths, detecting an opening delay for the injector, and storing the opening delay. The method may further include increasing PW1 and decreasing PW2 by a predetermined amount, repeating selected steps until PW2 is less than or equal to a predetermined minimum pulse width, changing the fuel pressure by a predetermined pressure amount, cycling through selected steps until the fuel pressure reaches a predetermined target fuel pressure, and commanding the injector to open earlier than a normally commanded opening time by a lead time based on stored opening delay data.
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公开(公告)号：US09650981B1
公开(公告)日：2017-05-16
申请号：US14980079
申请日：2015-12-28
Applicant: GM Global Technology Operations LLC
Inventor： Thomas J. Large , Grant J. Ovist , Sharianne Ziola , Timothy Wendling , J. Michael Gwidt
CPC classification number: F02M35/1038 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2900/0416 , F01N2900/1624 , F02D41/0087 , F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D2200/0814 , F02D2200/0816 , F02M35/10386 , Y02T10/47
Abstract: A vehicle system includes an upstream oxygen monitoring module that monitors an upstream exhaust oxygen sensor and determines an upstream transition period based on a time at which the upstream exhaust oxygen sensor detects a rich-to-lean fueling transition. A delay determining module determines a delay period associated with the upstream exhaust oxygen sensor's detection of the fueling transition. An upstream correcting module determines a corrected upstream transition period based on the upstream transition period and the delay period. A downstream oxygen monitoring module monitors a downstream exhaust oxygen sensor and determines a downstream transition period based on the response of the downstream exhaust oxygen sensor to the fueling transition. An oxygen storage capacity (OSC) determining module determines an OSC period based on the corrected upstream transition period and the downstream transition period. A catalyst fault detection module selectively adjusts operating parameters of the engine based on the OSC period.
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公开(公告)号：US09217386B2
公开(公告)日：2015-12-22
申请号：US13760611
申请日：2013-02-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dean R. Kwapis , Rafat F. Hattar , Kevin M. Luchansky , J. Michael Gwidt
CPC classification number: F02D41/04 , F02D35/02 , F02D41/40 , F02D41/401 , F02D41/402 , Y02T10/44
Abstract: A system according to the principles of the present disclosure includes a stochastic pre-ignition module and a fuel control module. The stochastic pre-ignition module determines whether operating conditions of an engine satisfy predetermined criteria associated with stochastic pre-ignition. The fuel control module enriches an air/fuel ratio of the engine when the engine operating conditions satisfy the predetermined criteria.
Abstract translation: 根据本公开原理的系统包括随机预燃模块和燃料控制模块。 随机预燃模块确定发动机的操作条件是否满足与随机预点火相关的预定标准。 当发动机工作条件满足预定标准时，燃料控制模块丰富了发动机的空燃比。
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公开(公告)号：US20140222315A1
公开(公告)日：2014-08-07
申请号：US13760611
申请日：2013-02-06
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Dean R. Kwapis , Rafat F. Hattar , Kevin M. Luchansky , J. Michael Gwidt
IPC: F02D41/04
CPC classification number: F02D41/04 , F02D35/02 , F02D41/40 , F02D41/401 , F02D41/402 , Y02T10/44
Abstract: A system according to the principles of the present disclosure includes a stochastic pre-ignition module and a fuel control module. The stochastic pre-ignition module determines whether operating conditions of an engine satisfy predetermined criteria associated with stochastic pre-ignition. The fuel control module enriches an air/fuel ratio of the engine when the engine operating conditions satisfy the predetermined criteria.
Abstract translation: 根据本公开原理的系统包括随机预燃模块和燃料控制模块。 随机预燃模块确定发动机的操作条件是否满足与随机预点火相关的预定标准。 当发动机工作条件满足预定标准时，燃料控制模块丰富了发动机的空燃比。
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