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21.发明授权公开(公告)号：US10012158B2
公开(公告)日：2018-07-03
申请号：US15363857
申请日：2016-11-29
Applicant: Cummins Inc.
Inventor： Govindarajan Kothandaraman , Hoseinali Borhan , Bibin N. Patel
CPC classification number: F02D41/0077 , F02D41/0007 , F02D41/005 , F02D41/0052 , F02D41/1402 , F02D41/1448 , F02D41/146 , F02D41/1461 , F02D41/2422 , F02D2041/141 , F02D2041/1412 , F02D2250/36 , F02M26/05 , F02M26/06 , Y02T10/144 , Y02T10/47
Abstract: System, apparatus, and methods are disclosed for controlling one or more actuators of an air handling system of an internal combustion engine. The one or more actuators are controlled in response to one or more feedforward references that are adjusted by a reference governor that predicts one or more operating parameters and imposes constraints on the one or more feedforward references to reduce the potential for violating limits on the one or more operating parameters.
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公开(公告)号：US09835099B2
公开(公告)日：2017-12-05
申请号：US14950240
申请日：2015-11-24
Applicant: Cummins Inc.
Inventor： Yongjie Zhu , Vivek A. Sujan , Govindarajan Kothandaraman , Timothy R. Frazier
CPC classification number: F02D41/0052 , F02D41/0072 , F02D41/1401 , F02D41/1402 , F02D41/1406 , F02D41/1458 , F02D41/1461 , F02D41/1462 , F02D41/1467 , F02D41/18 , Y02T10/47
Abstract: This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions.
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公开(公告)号：US09228511B2
公开(公告)日：2016-01-05
申请号：US13656308
申请日：2012-10-19
Applicant: CUMMINS INC.
Inventor： Yongjie Zhu , Vivek J. Sujan , Govindarajan Kothandaraman , Timothy R. Frazier
CPC classification number: F02D41/0052 , F02D41/0072 , F02D41/1401 , F02D41/1402 , F02D41/1406 , F02D41/1458 , F02D41/1461 , F02D41/1462 , F02D41/1467 , F02D41/18 , Y02T10/47
Abstract: This disclosure provides a system and method for controlling internal combustion engine system to reduce operation variations among plural engines. The system and method utilizes single-input-single-output (SISO) control in which a single operating parameter lever is selected from among exhaust gas recirculation (EGR) fraction and charge air mass flow (MCF), and a stored reference value associated with the selected lever is adjusted for an operating point in accordance with a difference between a measured emissions characteristic and a pre-calibrated reference value of the emissions characteristic for that operating point. Adjusting the selected operating parameter lever towards the theoretical pre-calibrated reference value of the operating parameter lever for each of plural operating points can reduce engine-to-engine variations in engine out emissions.
Abstract translation: 本公开提供了一种用于控制内燃机系统以减少多个发动机之间的操作变化的系统和方法。 该系统和方法采用单输入单输出（SISO）控制，其中从排气再循环（EGR）分数和增压空气质量流量（MCF）中选择单个操作参数杆，以及与 根据测量的排放特性与该工作点的排放特性的预校准参考值之间的差异，对所选择的杠杆进行调整。 对于多个操作点中的每一个，将所选择的操作参数杆调整到操作参数杆的理论预校准参考值可以减少发动机到发动机排放的发动机变化。
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24.发明授权Apparent plumbing volume of air intake and fresh airflow value determination 有权表观管道体积的空气进气量和新鲜气流值的测定公开(公告)号：US09140203B2
公开(公告)日：2015-09-22
申请号：US13644498
申请日：2012-10-04
Applicant: Cummins Inc.
Inventor： Govindarajan Kothandaraman , Vivek Sujan , Andrew Osburn , Ashwin Vyas
CPC classification number: F02D41/18 , F02D21/08 , F02D2200/0402 , F02M26/05 , F02M35/10386
Abstract: An apparatus for fresh airflow determination includes an operating conditions module that interprets a MAF value, a current operating condition and a charge flow value. The apparatus further includes a volume estimation module that determines an apparent plumbing volume of an air intake assembly in response to the MAF value, the current operating condition and the charge flow value. The apparatus further includes a volume reporting module that provides the apparent plumbing volume.
Abstract translation: 用于新鲜气流确定的装置包括解释MAF值，当前操作条件和充电流量值的操作条件模块。 该装置还包括体积估计模块，其响应于MAF值，当前操作条件和充电流量值来确定进气组件的表观管道体积。 该装置还包括提供表观管道体积的体积报告模块。
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公开(公告)号：US20150167567A1
公开(公告)日：2015-06-18
申请号：US14628552
申请日：2015-02-23
Applicant: Cummins Inc.
Inventor： David Stroh , Govindarajan Kothandaraman , Carlos Alcides Lana , Karim A. Azizou
CPC classification number: F02D41/2496 , F02D41/0002 , F02D41/1497 , F02D41/345 , F02D2250/18 , F02D2250/21 , F02D2250/22 , F02P5/045 , Y02T10/42
Abstract: A system comprising an air actuator configured to control air delivered to an engine; a fuel actuator configured to control fuel delivered to an engine; and a controller configured to: actuate the air actuator in response to a first torque signal; and actuate the fuel actuator in response to a second torque signal.
Abstract translation: 一种系统，包括：空气致动器，被构造成控制输送到发动机的空气; 燃料致动器，被配置为控制输送到发动机的燃料; 以及控制器，其被配置为：响应于第一扭矩信号致动所述空气致动器; 并且响应于第二扭矩信号致动燃料致动器。
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Patent Agency Ranking
公开(公告)号：US12264604B2
公开(公告)日：2025-04-01
申请号：US17884546
申请日：2022-08-09
Applicant: Cummins Inc.
Inventor： Govindarajan Kothandaraman , Lyle E. Kocher , David M. Barnes , Scott Robert Bardakjy , J. Steven Kolhouse
Abstract: Systems, devices, and methods are disclosed that during cylinder deactivation, including skipfire, at low engines speeds and low engine loads maintain adequate oil pressure of valvetrain components or hardware required for CDA and/or skipfire operation.
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27.发明授权公开(公告)号：US11512630B2
公开(公告)日：2022-11-29
申请号：US16643724
申请日：2018-08-30
Applicant: Cummins Inc.
Inventor： Hoseinali Borhan , Dwight A. Doig , Govindarajan Kothandaraman , David E. Koeberlein
IPC: F02B75/28 , F02D41/00 , F02D41/30 , F02D41/04 , B60W10/12 , B60W10/06 , F02N11/08 , F02B37/24 , F02B37/10 , B60W30/192 , G01P13/04 , G01P3/481 , B60W10/196
Abstract: A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.
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28.发明申请公开(公告)号：US20200232385A1
公开(公告)日：2020-07-23
申请号：US16643724
申请日：2018-08-30
Applicant: Cummins Inc.
Inventor： Hoseinali Borhan , Dwight A. Doig , Govindarajan Kothandaraman , David E. Koeberlein
IPC: F02B75/28 , F02D41/00 , F02D41/30 , F02D41/04 , B60W10/12 , B60W10/196 , B60W10/06 , F02N11/08 , F02B37/24 , F02B37/10 , B60W30/192 , G01P13/04 , G01P3/481
Abstract: A method for controlling operation of an opposed piston engine is provided, comprising: determining a direction of rotation of the engine; comparing the determined direction of rotation to a correct direction of rotation of the engine; and responding to the determined direction of rotation being different from the correct direction of rotation by taking corrective action.
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29.发明申请公开(公告)号：US20200149491A1
公开(公告)日：2020-05-14
申请号：US16740592
申请日：2020-01-13
Applicant: Cummins Inc.
Inventor： Shashank Tamaskar , Kartavya Neema , Carlos Alcides Lana , Govindarajan Kothandaraman
Abstract: One embodiment is a system comprising an engine including a dedicated EGR cylinder configured to provide EGR to the engine via an EGR loop, a non-dedicated cylinder, a plurality of injectors, an ignition system including a plurality of spark plugs, an intake throttle, and an electronic control system. The electronic control system is configured to control combustion during transient operation of the engine by determining one or more combustion control parameters compensating for variation of one or more of inert matter, unburned air and unburned fuel in EGR output by the dedicated EGR cylinder during transient operation of the engine, and an effect of the EGR loop on inert matter, unburned air and unburned fuel provided to the plurality of cylinders, and controlling operation of at least one of the throttle, the ignition system and the plurality of injectors in response to at least one of the one or more combustion control parameters.
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公开(公告)号：US20200027355A1
公开(公告)日：2020-01-23
申请号：US16173264
申请日：2018-10-29
Applicant: Cummins, Inc.
Inventor： Vivek Anand Sujan , Phani Kiran Vajapeyazula , Govindarajan Kothandaraman , Jingxuan Liu , Kenneth M. Follen
Abstract: Systems and apparatuses include a controller including a circuit structured to communicate with a platoon of vehicles, determine a platoon rank order, determine final separation distances between vehicles, affect operation of each vehicle to achieve the platoon rank order and final separation distances, monitor the platoon of vehicles to determine if a deserter is leaving the platoon of vehicles or if a critical change has occurred, determine an updated platoon rank order, and determine an updated final separation distances between vehicles.
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