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公开(公告)号：US11790126B2
公开(公告)日：2023-10-17
申请号：US16720965
申请日：2019-12-19
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis
CPC classification number: G06F30/20 , F02D43/04 , G06F30/15 , F02D2041/1437
Abstract: A method for generating data for an internal combustion engine control unit includes receiving at least one constraint by a simulated internal combustion engine, receiving a first value of an air condition by the simulated internal combustion engine, and determining at least one simulated engine parameter associated with a maximum expected output of the simulated internal combustion engine, wherein the maximum expected output is determined based on the first value and the at least one constraint. The method also includes supplementing existing engine information by storing the at least one simulated engine parameter in a memory associated with the internal combustion engine control unit together with the existing engine information.
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公开(公告)号：US11773798B1
公开(公告)日：2023-10-03
申请号：US18060826
申请日：2022-12-01
Applicant: Caterpillar Inc.
Inventor： Sylvain J. Charbonnel , Gavin Williams , Derek A. Tanis
CPC classification number: F02D41/025 , F02D41/1458 , F01N3/0842 , F01N3/208 , F01N2560/026 , F01N2900/0412 , F02D2200/0806
Abstract: A machine includes an engine, a selective catalytic reduction (SCR) element fixedly connected to an output of the engine, and a controller. The controller is communicatively coupled to the engine and a sensor at an output of the SCR element. The controller is configured to calculate an estimated amount of emissions at a location of the SCR element, calculate an estimated amount of emissions from an output of the SCR element, measure, using the sensor, an actual amount of emissions from the output of the SCR element, and perform a comparison of the estimated amount of emissions and the actual amount of emissions. The controller is further configured to adjust, based on the comparison, the estimated amount of emissions at the location of the SCR element, and control operation of the engine based on the adjusted amount of emissions.
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公开(公告)号：US11225926B2
公开(公告)日：2022-01-18
申请号：US16720881
申请日：2019-12-19
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis
Abstract: A method for programming an internal combustion engine control unit includes operating a test internal combustion engine at a first speed and a first torque while simulating a condition of the test internal combustion engine by restricting a flow of air to the test internal combustion engine to simulate altitude variations of the test internal combustion engine or elevating a temperature of the flow of air to simulate ambient temperature variations of the test internal combustion engine. The method also includes measuring engine performance information while operating the test internal combustion engine at the first speed and first torque and while simulating the condition of the test internal combustion engine, and programming the internal combustion engine control unit by storing the measured engine performance information in a memory associated with the internal combustion engine control unit.
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Patent Agency Ranking
公开(公告)号：US20210189989A1
公开(公告)日：2021-06-24
申请号：US16720881
申请日：2019-12-19
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis
Abstract: A method for programming an internal combustion engine control unit includes operating a test internal combustion engine at a first speed and a first torque while simulating a condition of the test internal combustion engine by restricting a flow of air to the test internal combustion engine to simulate altitude variations of the test internal combustion engine or elevating a temperature of the flow of air to simulate ambient temperature variations of the test internal combustion engine. The method also includes measuring engine performance information while operating the test internal combustion engine at the first speed and first torque and while simulating the condition of the test internal combustion engine, and programming the internal combustion engine control unit by storing the measured engine performance information in a memory associated with the internal combustion engine control unit.
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公开(公告)号：US20210192104A1
公开(公告)日：2021-06-24
申请号：US16720965
申请日：2019-12-19
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis
Abstract: A method for generating data for an internal combustion engine control unit includes receiving at least one constraint by a simulated internal combustion engine, receiving a first value of an air condition by the simulated internal combustion engine, and determining at least one simulated engine parameter associated with a maximum expected output of the simulated internal combustion engine, wherein the maximum expected output is determined based on the first value and the at least one constraint. The method also includes supplementing existing engine information by storing the at least one simulated engine parameter in a memory associated with the internal combustion engine control unit together with the existing engine information.
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公开(公告)号：US20150369160A1
公开(公告)日：2015-12-24
申请号：US14838368
申请日：2015-08-28
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis , Christopher J. Hurley , Derek E. Nieman , Ramamurthy Vaidyanathan
CPC classification number: F02M63/0015 , F02M57/024 , F02M61/04
Abstract: A method to control an injection pressure level of fuel within a unit injector is provided. The method includes provision of a second spill valve in the unit injector, which is connected in parallel to a first spill valve. The fuel is delivered to the unit injector with the first spill valve maintained in a passive state. This facilitates return of the first portion of the fuel to the low-pressure fuel manifold. The first spill valve is actuated to an active state to block the flow of fuel to the low-pressure fuel manifold, to maintain the unit injector at the injection pressure level. The second spill valve is actuated concurrently or prior to the actuation of the first spill valve. This facilitates return of a second portion of the fuel to the low-pressure fuel manifold. This is done to limit the injection pressure level within the unit injector.
Abstract translation: 提供了一种用于控制单元喷射器内的燃料的喷射压力水平的方法。 该方法包括在单元喷射器中设置并联连接到第一溢流阀的第二溢流阀。 第一个溢流阀保持处于被动状态，将燃料输送到单元喷射器。 这有助于将燃料的第一部分返回到低压燃料歧管。 第一溢流阀被致动到活动状态以阻止燃料流向低压燃料歧管，以将单元喷射器保持在喷射压力水平。 第二溢流阀同时或在第一溢流阀致动之前被致动。 这有助于燃料的第二部分返回到低压燃料歧管。 这是为了限制单元注射器内的注射压力水平。
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公开(公告)号：US08967103B2
公开(公告)日：2015-03-03
申请号：US13783923
申请日：2013-03-04
Applicant: Caterpillar Inc.
Inventor： Derek A. Tanis , Joseph E. Roth , Aaron G. Foege
CPC classification number: F01L1/18 , F01L1/181 , F01L13/0031 , F01L2001/054 , F01L2820/032
Abstract: A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.
Abstract translation: 公开了一种用于发动机系统的可变气门正时装置。 可变气门正时装置包括配置成跟随凸轮凸角的凸轮从动件。 推杆与凸轮从动件可操作地连接，并且推杆旋转机构构造成选择性地旋转推杆。 此外，凸轮从动件调节机构构造成基于推杆的旋转来重新定位凸轮从动件。
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公开(公告)号：US20140245979A1
公开(公告)日：2014-09-04
申请号：US13783923
申请日：2013-03-04
Applicant: CATERPILLAR INC.
Inventor： Derek A. Tanis , Joseph E. Roth , Aaron G. Foege
IPC: F01L1/18
CPC classification number: F01L1/18 , F01L1/181 , F01L13/0031 , F01L2001/054 , F01L2820/032
Abstract: A variable valve timing arrangement for an engine system is disclosed. The variable valve timing arrangement includes a cam follower configured to follow a cam lobe. A pushrod is operably connected with the cam follower and a pushrod rotation mechanism is configured to selectively rotate the pushrod. Further, a cam follower adjustment mechanism is configured to reposition the cam follower based on the rotation of the pushrod.
Abstract translation: 公开了一种用于发动机系统的可变气门正时装置。 可变气门正时装置包括配置成跟随凸轮凸角的凸轮从动件。 推杆与凸轮从动件可操作地连接，并且推杆旋转机构构造成选择性地旋转推杆。 此外，凸轮从动件调节机构构造成基于推杆的旋转来重新定位凸轮从动件。
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