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1.发明申请公开(公告)号：US20140136080A1
公开(公告)日：2014-05-15
申请号：US13677441
申请日：2012-11-15
Applicant: CATERPILLAR INC.
Inventor： Arvind Sivasubramanian , Christopher F. Gallmeyer , David James Lin
IPC: F02D19/06
CPC classification number: F02D19/0623 , F02D19/061 , F02D19/0628 , F02D19/081 , F02D35/027 , F02D41/0027 , F02D41/1446 , Y02T10/36
Abstract: A control system for a dual gaseous and liquid fuel engine includes an electronic controller configured to receive data from a plurality of sensing mechanisms indicative of an error in a plurality of different engine operating parameters. The electronic controller is further configured to determine a highest priority one of the errors, and limit substitution of the gaseous fuel responsive to a normalized value thereof.
Abstract translation: 用于双气体和液体燃料发动机的控制系统包括电子控制器，其被配置为从多个感测机构接收指示多个不同发动机操作参数中的误差的数据。 电子控制器还被配置为确定误差中的最高优先级之一，并且响应于其归一化值来限制气体燃料的替代。
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公开(公告)号：US20220268232A1
公开(公告)日：2022-08-25
申请号：US17181231
申请日：2021-02-22
Applicant: Caterpillar Inc.
Inventor： Brett A. Zook , Christopher F. Gallmeyer , Karthik Jayasankaran , Kamalakannan Thammireddi Vajram
Abstract: Operating a gaseous fuel engine system includes determining a detonation level in combustion cylinders in an engine in the gaseous fuel engine system, comparing the detonation level to a detonation level limit, calculating a detonation error, and limiting an engine load of the engine to a derated engine load level based on a reduction to intake manifold air pressure (IMAP) that is performed responsive to the detonation error. The gaseous fuel engine system can be operated at a reduced, derated engine load, rather than being shut down, and permitted to increase in engine load level as detonation events clear. Related control logic and structure are disclosed.
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公开(公告)号：US20140290623A1
公开(公告)日：2014-10-02
申请号：US13854293
申请日：2013-04-01
Applicant: CATERPILLAR INC.
Inventor： Arvind Sivasubramanian , David J. Lin , Keith A. Intveld , Jeffrey A. Howard , Christopher F. Gallmeyer
IPC: F02D41/40
CPC classification number: F02D41/401 , F02D19/0613 , F02D19/0615 , F02D41/0025 , F02D41/3064 , F02D2200/604 , Y02T10/36 , Y02T10/44
Abstract: A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. Further, determine a direction of change in a mode of operation of the engine system, and selectively perform a change in the diesel injection timing from the first diesel injection timing to the second diesel injection timing at a first rate of transition or a second rate of transition, based on the direction of change in a mode of operation of the engine system.
Abstract translation: 用于双燃料发动机的燃料喷射定时管理系统被配置为确定对应于发动机系统的第一操作模式的第一柴油喷射正时和对应于第二操作模式的第二柴油喷射定时。 此外，确定发动机系统的操作模式的变化方向，并且以第一转换速率或第二速率选择性地执行从第一柴油喷射正时到第二柴油喷射正时的柴油喷射正时的变化 基于发动机系统的操作模式的变化方向进行转换。
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公开(公告)号：US20140121941A1
公开(公告)日：2014-05-01
申请号：US13662805
申请日：2012-10-29
Applicant: CATERPILLAR, INC.
Inventor： Arvind Sivasubramanian , Christopher F. Gallmeyer
IPC: F02D41/26
CPC classification number: F02D41/067 , F02B37/16 , F02B37/18 , F02D41/0007 , F02D41/0027 , F02D2200/0406 , Y02T10/144
Abstract: Controlling intake pressure in an internal combustion engine includes calculating a proportional control term based on a difference between actual and desired intake pressure, determining choke and waste gate position values responsive to the proportional control term, and commanding a change in position of the choke or waste gate responsive to the corresponding position value to adjust actual intake pressure toward desired intake pressure. Related apparatus and control logic is also disclosed.
Abstract translation: 控制内燃机中的进气压力包括基于实际和期望的进气压力之间的差值计算比例控制项，根据比例控制项确定扼流圈和废门位置值，并指示扼流圈或废物位置的变化 闸门响应于相应的位置值，以将实际进气压力调节到期望的进气压力。 还公开了相关装置和控制逻辑。
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公开(公告)号：US11359557B2
公开(公告)日：2022-06-14
申请号：US16884657
申请日：2020-05-27
Applicant: Caterpillar Inc.
Inventor： Karthik Jayasankaran , Joshua T. Annin , Christopher F. Gallmeyer , Alex M. Kubiak , Kamalakannan Thammireddi Vajram
Abstract: A method for controlling an internal combustion engine includes receiving a request for a desired output from the internal combustion engine, receiving sensor information indicative of at least an engine speed or a pressure of gas provided to the internal combustion engine, and setting a changeable limit associated with a supply of air and fuel to the internal combustion engine. The method also includes, based at least in part on the received sensor information, changing the changeable limit to define a changed limit and reducing an output of the internal combustion engine based on the changed limit.
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Patent Agency Ranking
公开(公告)号：US09212618B2
公开(公告)日：2015-12-15
申请号：US13854293
申请日：2013-04-01
Applicant: Caterpillar Inc.
Inventor： Arvind Sivasubramanian , David J. Lin , Keith A. Intveld , Jeffrey A. Howard , Christopher F. Gallmeyer
CPC classification number: F02D41/401 , F02D19/0613 , F02D19/0615 , F02D41/0025 , F02D41/3064 , F02D2200/604 , Y02T10/36 , Y02T10/44
Abstract: A fuel injection timing management system for a dual fuel engine is configured to determine a first diesel injection timing corresponding to a first mode of operation of the engine system and a second diesel injection timing corresponding to a second mode of operation. The system may further determine a direction of change in a mode of operation of the engine system, and selectively perform a change in the diesel injection timing from the first diesel injection timing to the second diesel injection timing at a first rate of transition or a second rate of transition, based on the direction of change in a mode of operation of the engine system.
Abstract translation: 用于双燃料发动机的燃料喷射定时管理系统被配置为确定对应于发动机系统的第一操作模式的第一柴油喷射正时和对应于第二操作模式的第二柴油喷射定时。 该系统还可以确定发动机系统的运行模式的变化方向，并且以第一转换速率或第二速度选择性地执行从第一柴油喷射正时到第二柴油喷射正时的柴油喷射正时的变化 基于发动机系统的操作模式的变化方向的转换速率。
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公开(公告)号：US20140290614A1
公开(公告)日：2014-10-02
申请号：US13851377
申请日：2013-03-27
Applicant: Caterpillar Inc.
Inventor： Arvind Sivasubramanian , Christopher F. Gallmeyer , David J. Lin , Brett A. Zook
IPC: F02D41/00
CPC classification number: F02D41/0097 , F02D31/002 , F02D31/007 , F02D41/062 , F02D41/067 , Y02T10/42
Abstract: An engine system includes a fuel supply unit configured to supply fuel into a combustion chamber. The engine system includes a fuel supply unit to regulate the supply of fuel into an inlet port via a fuel rail and an air supply unit configured to supply compressed air into the combustion chamber. A control system is configured to receive operating conditions of the engine system. Further, the control system includes a detector component configured to generate a control signal indicative of a start-up condition of an engine system. A switching component of the controller receives the control signal indicative of the start-up condition of the engine system from the detector component and further transmits a fuel supply control signal to the fuel valve based on an air-fuel ratio error signal, and transmit an air supply control signal to the choke valve based on an engine speed error signal.
Abstract translation: 发动机系统包括被配置为将燃料供应到燃烧室中的燃料供应单元。 发动机系统包括：燃料供给单元，其经由燃料轨调节进入入口的燃料供给;以及空气供给单元，其构造成将压缩空气供给到燃烧室。 控制系统被配置为接收发动机系统的操作条件。 此外，控制系统包括被配置为产生指示发动机系统的启动状态的控制信号的检测器部件。 控制器的切换部件从检测器部件接收表示发动机系统的启动状态的控制信号，并且还基于空燃比误差信号向燃料阀发送燃料供给控制信号， 基于发动机转速误差信号向阻流阀供气控制信号。
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公开(公告)号：US20140290215A1
公开(公告)日：2014-10-02
申请号：US13852342
申请日：2013-03-28
Applicant: CATERPILLAR INC.
Inventor： Arvind Sivasubramanian , Christopher F. Gallmeyer
IPC: F02D41/02
CPC classification number: F02D41/0295 , F02D41/0025 , F02D41/1441 , F02D41/1445 , F02D2200/0611 , F02D2200/0814
Abstract: A method for controlling emissions in an engine system including an internal combustion engine and a catalytic converter with oxygen storage capacity. The method includes determining a real time oxygen storage level of the three-way catalytic converter based on a real time exhaust gas flow rate and a real time measured upstream oxygen quantity with respect to the catalytic converter. Further, maintaining an optimal oxygen storage level of the three-way catalytic converter for different types of fuel used in the internal combustion engine.
Abstract translation: 一种用于控制包括内燃机和具有储氧能力的催化转化器的发动机系统中的排放的方法。 该方法包括基于实时废气流量和相对于催化转化器测量的上游氧气量的实时测定来确定三元催化转化器的实时氧气储存水平。 此外，维持用于内燃机中使用的不同类型燃料的三元催化转化器的最佳储氧量。
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公开(公告)号：US11434842B1
公开(公告)日：2022-09-06
申请号：US17181231
申请日：2021-02-22
Applicant: Caterpillar Inc.
Inventor： Brett A. Zook , Christopher F. Gallmeyer , Karthik Jayasankaran , Kamalakannan Thammireddi Vajram
Abstract: Operating a gaseous fuel engine system includes determining a detonation level in combustion cylinders in an engine in the gaseous fuel engine system, comparing the detonation level to a detonation level limit, calculating a detonation error, and limiting an engine load of the engine to a derated engine load level based on a reduction to intake manifold air pressure (IMAP) that is performed responsive to the detonation error. The gaseous fuel engine system can be operated at a reduced, derated engine load, rather than being shut down, and permitted to increase in engine load level as detonation events clear. Related control logic and structure are disclosed.
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10.发明授权公开(公告)号：US11306669B1
公开(公告)日：2022-04-19
申请号：US17121783
申请日：2020-12-15
Applicant: Caterpillar Inc.
Inventor： Christopher F. Gallmeyer , Geetika Dilawari , Shawn M. Damm , Shivangi Wagle , Hannes Marscheider
IPC: F02D41/00
Abstract: A system, apparatus, and method for controlling an engine system can provide fuel reactivity compensation control for an engine of the engine system. The control can include controlling pilot fuel quantity supplied to an engine based on a pilot fuel offset value; and controlling air-to-fuel ratio (AFR) for the engine based on an AFR control trim value. A NOx error value can be used to generate one of the pilot fuel offset value or the AFR control trim value, and an exhaust temperature error value can be used to generate the other of the pilot fuel offset value or the AFR control trim value.
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