公开(公告)号：US20230407807A1

公开(公告)日：2023-12-21

申请号：US18324549

申请日：2023-05-26

Applicant: Deere & Company

Inventor： Danan Dou ,  Craig W. Lohmann ,  Taner Tuken ,  Daniel A. Nehmer ,  Barbara E. Goodrich

IPC: F02D41/14 ,  F02D19/06 ,  F02D41/00

CPC classification number: F02D41/1454 ,  F02D19/0602 ,  F02D19/0644 ,  B62D49/06 ,  F02D19/0634 ,  F02D41/146 ,  F02D41/0002 ,  F02D19/0655

Abstract: A power system for a work vehicle includes an intake arrangement for intake of charge air; a fuel arrangement including a fuel tank storing a low carbon fuel blend; an engine configured to receive, ignite, and combust a mixture of the charge air and the low carbon fuel blend; an exhaust arrangement positioned downstream to receive exhaust from the engine during combustion of the low carbon fuel blend; at least one exhaust sensor positioned at or proximate to the exhaust arrangement; and a controller. The controller is configured to receive an initial indication of a composition of the low carbon fuel blend; implement operating parameters with feedforward adjustments based on the initial indication of the composition of the low carbon fuel blend; receive feedback from the at least one exhaust sensor regarding operational conditions; and adjust the operating parameters based on the feedback.

公开(公告)号：US20180334177A1

公开(公告)日：2018-11-22

申请号：US15981150

申请日：2018-05-16

Applicant: Optifuel Systems, LLC

Inventor： Scott D. Myers

IPC: B61C7/04 ,  B61C17/06

CPC classification number: B61C7/04 ,  B60L11/02 ,  B60L11/123 ,  B60L2200/26 ,  B61C5/00 ,  B61C17/06 ,  F02D19/023 ,  F02D19/0607 ,  F02D19/10 ,  F02D25/00 ,  F02D41/0027 ,  F02D41/146 ,  F02D2250/18 ,  F02D2250/36 ,  Y10S903/903

Abstract: A hybrid power system for a locomotive for reducing emissions. The hybrid power system may have at least one engine powered by natural gas, at least one engine powered by diesel fuel and/or a dual fuel mixture of diesel and natural gas, a drive system operatively coupled to the at least one natural gas powered engine and the at least one diesel and/or dual fuel powered engine for propelling the locomotive, and a system controller for independently controlling power output from the respective engines to the drive system based upon a power demand. The hybrid power system may utilize the natural gas powered engine(s) at low power demands, and then supplement this power with the diesel and/or dual fuel powered engine(s) at higher power demands.

公开(公告)号：US20180320626A1

公开(公告)日：2018-11-08

申请号：US15586146

申请日：2017-05-03

Applicant: Ford Global Technologies, LLC

Inventor： Gopichandra Surnilla ,  Adithya Pravarun Re Ranga ,  Mohannad Hakeem ,  Calvin Trescott ,  Joseph Norman Ulrey ,  Peter C. Moilanen

IPC: F02D41/30 ,  F02D41/02 ,  F02D41/14

CPC classification number: F02D41/3094 ,  F01N3/021 ,  F01N3/10 ,  F01N3/36 ,  F01N9/00 ,  F01N11/002 ,  F01N11/007 ,  F01N2250/02 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1614 ,  F01N2900/1624 ,  F01N2900/1626 ,  F02D41/0087 ,  F02D41/023 ,  F02D41/0235 ,  F02D41/0255 ,  F02D41/0295 ,  F02D41/064 ,  F02D41/10 ,  F02D41/12 ,  F02D41/123 ,  F02D41/126 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/1495 ,  F02D2041/001 ,  F02D2200/1002 ,  F02D2200/101 ,  F02M25/028 ,  F02M26/06 ,  Y02T10/42 ,  Y02T10/47

Abstract: Methods and systems are provided for adjusting engine operating conditions for reduction of NOx emissions. In one example, immediately after a fuel shut-off event, in response to an oxygen content of an exhaust catalyst being higher than a threshold, manifold charge cooling may be increased by increasing the portion of fuel delivered to the engine via manifold injection relative to the portion to fuel delivered via one or more of port and direct injection. By increasing manifold cooling, NOx production may be reduced.

公开(公告)号：US10072594B2

公开(公告)日：2018-09-11

申请号：US15637500

申请日：2017-06-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiichiro Aoki ,  Yoshihisa Serizawa

IPC: G01M15/10 ,  F02D41/14 ,  G01N33/00 ,  F02D41/12

CPC classification number: F02D41/1495 ,  F02D41/123 ,  F02D41/1455 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/1494 ,  F02D41/222 ,  F02D41/2474 ,  G01M15/102 ,  G01M15/104 ,  G01N33/0006 ,  Y02T10/40

Abstract: An exhaust sensor 1 comprises a sensor cell 51, a voltage application circuit 61, a current detection circuit 62 and a concentration calculating part 80a. The current detection circuit detects a first current flowing through the sensor cell when fuel cut control is being performed in the internal combustion engine and a predetermined voltage is applied from the voltage application circuit to the sensor cell, and detect a second current flowing through the sensor cell when normal control is being performed in the internal combustion engine and the predetermined voltage is applied from the voltage application circuit to the sensor cell. The concentration calculating part is configured to calculate the concentration higher with respect to the second current when the first current is relatively low compared with when the first current is relatively high.

公开(公告)号：US20180223744A1

公开(公告)日：2018-08-09

申请号：US15538006

申请日：2017-02-06

Applicant: Komatsu Ltd.

Inventor： Genki Ichikawa

IPC: F02D9/04 ,  F01N3/20

CPC classification number: F02D9/04 ,  F01N3/103 ,  F01N3/2066 ,  F01N2240/36 ,  F01N2260/14 ,  F01N2900/08 ,  F01N2900/1602 ,  F01N2900/1621 ,  F02D41/024 ,  F02D41/0275 ,  F02D41/146 ,  F02D2200/0802 ,  F02D2200/1002 ,  F02D2200/101 ,  F02D2700/04 ,  Y02A50/2325 ,  Y02T10/24

Abstract: An exhaust purifying device mounted in a working vehicle includes: an exhaust passage through which an exhaust gas discharged from an engine flows; a throttle valve configured to change a passage area of the exhaust passage; an exhaust aftertreatment device disposed downstream of the throttle valve; and a valve controller configured to control an open degree of the throttle valve. The valve controller is configured to control the open degree of the throttle valve to be larger in a low load region below a predetermined load range and in a high load region exceeding the predetermined load range than in a medium load region that is the predetermined load range.

公开(公告)号：US09989003B2

公开(公告)日：2018-06-05

申请号：US14478038

申请日：2014-09-05

Applicant: General Electric Company

Inventor： Milan Palinda Karunaratne

IPC: F02D41/14 ,  F02D41/22 ,  F02D35/02 ,  F02D41/00 ,  F02M25/07

CPC classification number: F02D41/146 ,  F02D35/02 ,  F02D41/0047 ,  F02D41/22 ,  F02D2200/1015 ,  F02M25/0755 ,  F02M26/46 ,  Y02T10/47

Abstract: Various methods and systems are provided for diagnosing a condition of a cylinder of an engine. In one example, a method includes adjusting recirculated exhaust gas responsive to a determined emission value and indicating insufficient combustion of one or more engine cylinders based on an amount by which the recirculated exhaust gas is adjusted.

公开(公告)号：US20180149099A1

公开(公告)日：2018-05-31

申请号：US15363857

申请日：2016-11-29

Applicant: Cummins Inc.

Inventor： Govindarajan Kothandaraman ,  Hoseinali Borhan ,  Bibin N. Patel

IPC: F02D41/00 ,  F02D9/06 ,  F02D41/14

CPC classification number: F02D41/0077 ,  F02D9/06 ,  F02D41/0007 ,  F02D41/005 ,  F02D41/0052 ,  F02D41/1402 ,  F02D41/1448 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/2422 ,  F02D41/3017 ,  F02D41/3076 ,  F02D2041/141 ,  F02D2041/1412 ,  F02D2250/36 ,  F02M26/05 ,  F02M26/06

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.

公开(公告)号：US20180003119A1

公开(公告)日：2018-01-04

申请号：US15637500

申请日：2017-06-29

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Keiichiro AOKI ,  Yoshihisa SERIZAWA

IPC: F02D41/14 ,  G01M15/10 ,  G01N33/00

CPC classification number: F02D41/1495 ,  F02D41/123 ,  F02D41/1455 ,  F02D41/146 ,  F02D41/1461 ,  F02D41/1494 ,  F02D41/222 ,  F02D41/2474 ,  G01M15/102 ,  G01M15/104 ,  G01N33/0006

Abstract: An exhaust sensor 1 comprises a sensor cell 51, a voltage application circuit 61, a current detection circuit 62 and a concentration calculating part 80a. The current detection circuit detects a first current flowing through the sensor cell when fuel cut control is being performed in the internal combustion engine and a predetermined voltage is applied from the voltage application circuit to the sensor cell, and detect a second current flowing through the sensor cell when normal control is being performed in the internal combustion engine and the predetermined voltage is applied from the voltage application circuit to the sensor cell. The concentration calculating part is configured to calculate the concentration higher with respect to the second current when the first current is relatively low compared with when the first current is relatively high.

公开(公告)号：US09726091B2

公开(公告)日：2017-08-08

申请号：US14215216

申请日：2014-03-17

Applicant: Cummins Inc.

Inventor： Michael J. Ruth ,  Michael J. Cunningham ,  Cary A. Henry

IPC: F02D41/00 ,  F02D41/14 ,  F02M26/05 ,  F02M26/06 ,  F02M26/24 ,  F02M26/42 ,  F02M26/28

CPC classification number: F02D41/005 ,  F02D41/0007 ,  F02D41/0052 ,  F02D41/0065 ,  F02D41/144 ,  F02D41/1454 ,  F02D41/146 ,  F02M26/05 ,  F02M26/06 ,  F02M26/24 ,  F02M26/28 ,  F02M26/42 ,  Y02T10/47

Abstract: Active control of one or more exhaust gas recirculation loops is provided to manage and EGR fraction in the charge flow to produce desired operating conditions and/or provide diagnostics in response to at least one of an oxygen concentration and a NOx concentration in the charge flow and in the exhaust flow.

公开(公告)号：US09714913B2

公开(公告)日：2017-07-25

申请号：US14356431

申请日：2012-02-14

Applicant: Hiroki Nishijima

Inventor： Hiroki Nishijima

IPC: G01N27/407 ,  G01N27/406 ,  F02D41/14 ,  F02D41/22 ,  F02D41/12

CPC classification number: G01N27/407 ,  F02D41/123 ,  F02D41/1441 ,  F02D41/146 ,  F02D41/1494 ,  F02D41/222 ,  F02D2200/0804 ,  G01N27/4067

Abstract: A control device for an exhaust gas sensor includes first means for estimating a temperature of a sensor element in accordance with impedance of a solid electrolyte, and second means for estimating the temperature of the sensor element in accordance with resistance of a heater. A first element temperature according to impedance of the sensor element in a predetermined detection timing is detected by the first means, and a second element temperature according to resistance of a heater of the sensor element in the predetermined detection timing is detected by the second means. The control device corrects the temperature of the sensor element that is estimated in accordance with heater resistance by the second means in accordance with a difference between the first element temperature and the second element temperature.