公开(公告)号：US20240209763A1

公开(公告)日：2024-06-27

申请号：US18400612

申请日：2023-12-29

Applicant: PACCAR Inc

Inventor： Cynthia Chaffin Webb ,  Charles Wayne Reinhardt Swart ,  Maarten Meijer ,  Varun Ramesh

IPC: F01N3/20 ,  F01N11/00 ,  F02D41/14 ,  F02D41/22

CPC classification number: F01N3/208 ,  F01N11/00 ,  F02D41/1441 ,  F02D41/1463 ,  F02D41/222 ,  F01N2390/02 ,  F01N2550/05 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/1453 ,  F01N2900/1402

Abstract: A heavy-duty truck has a diesel engine, an exhaust after-treatment system, and an engine control unit. The exhaust after-treatment system includes a close-coupled selective catalytic reduction system and an underbody selective catalytic reduction system, a first NOx sensor upstream of the close-coupled selective catalytic reduction system, a second NOx sensor between the two selective catalytic reduction systems, and a third NOx sensor downstream of the underbody selective catalytic reduction system. The engine control unit may perform methods allowing intrusive diagnostics to be performed on exhaust gas NOx sensors using the selective catalytic reduction systems during normal operation of the heavy-duty truck.

公开(公告)号：US12000319B2

公开(公告)日：2024-06-04

申请号：US18041801

申请日：2022-06-13

Applicant: Zhejiang Geely Holding Group Co., Ltd. ,  Ningbo Geely Royal Engine Components Co., Ltd. ,  Aurobay Technology Co., Ltd.

Inventor： Junqi Liu ,  Chen Yang ,  Shubo Li ,  Rongchun Ma ,  Jie Chen ,  Xudong Sun ,  Yige Xiao ,  Ruiping Wang

IPC: F01N3/20 ,  B60L1/12 ,  B60W20/00 ,  F01N3/027 ,  F01N3/08 ,  F01N3/10 ,  F01N9/00 ,  F01N11/00

CPC classification number: F01N3/2013 ,  B60L1/12 ,  B60W20/00 ,  F01N3/101 ,  B60W2710/0694 ,  B60W2710/086 ,  F01N3/027 ,  F01N3/0892 ,  F01N9/005 ,  F01N9/007 ,  F01N11/002 ,  F01N11/005 ,  F01N2390/02 ,  F01N2550/22 ,  F01N2900/1404

Abstract: The invention provides a three-way catalytic converter preheating control method and system, a vehicle and a storage medium. The includes when the temperature of an exhaust pipe of the hybrid electric vehicle is lower than a first temperature threshold value, sending a first work instruction; the high-low pressure conversion module outputting a first working voltage according to the first working instruction so as to start preheating of a catalyst in a three-way catalytic converter; when working data of the hybrid electric vehicle meets the switching condition, sending a second working instruction to make the high-low voltage conversion module outputs a second working voltage and stops outputting the first working voltage so as to stop the electric heating. According to the invention, two working modes can be provided, and the power battery can be used for electrically heating the catalyst in advance through the high-low pressure conversion module.

公开(公告)号：US11698009B2

公开(公告)日：2023-07-11

申请号：US16937968

申请日：2020-07-24

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： Michael Kaack ,  Stefan Paukner ,  Falk-Christian Baron Von Ceumern-Lindenstjerna

IPC: F01N3/00 ,  F01N3/035 ,  F01N3/025 ,  F01N3/10 ,  F01N3/20 ,  F01N3/36

CPC classification number: F01N3/035 ,  F01N3/0253 ,  F01N3/101 ,  F01N3/2033 ,  F01N3/36 ,  F01N2250/02 ,  F01N2340/02 ,  F01N2390/02 ,  F01N2610/03

Abstract: An exhaust gas aftertreatment system for an internal combustion engine has an exhaust system that can be connected to an outlet of the internal combustion engine. A three-way catalytic converter that is situated close to the engine and, downstream from the three-way catalytic converter that is situated close to the engine, a second catalytic converter and a particle reduction device are arranged in the direction in which an exhaust gas of the internal combustion engine flows through an exhaust gas channel of the exhaust system. A fuel injector is arranged on the exhaust gas channel so as to inject fuel downstream from the three-way catalytic converter that is situated close to the engine and upstream from the second catalytic converter, and the exhaust system comprises a secondary air system with which secondary air can be blown into the exhaust gas channel downstream from the three-way catalytic converter that is situated close to the engine and upstream from the second catalytic converter.

公开(公告)号：US20170241314A1

公开(公告)日：2017-08-24

申请号：US15046896

申请日：2016-02-18

Applicant: Cummins Emission Solutions Inc.

Inventor： Nassim Khaled ,  Bibin N. Pattel

IPC: F01N3/20 ,  F01N11/00 ,  F01N3/28

CPC classification number: F01N3/208 ,  F01N3/2066 ,  F01N3/2896 ,  F01N11/002 ,  F01N2390/02 ,  F01N2610/02 ,  F01N2610/1433 ,  F01N2610/144 ,  F01N2610/1453 ,  F01N2610/146 ,  F01N2610/148 ,  F01N2900/0402 ,  F01N2900/0408 ,  F01N2900/1808 ,  F01N2900/1812 ,  Y02T10/24

Abstract: A controller including a self-tuning circuit for controlling a pressure system to output an input pressure corresponding to an input pressure value using an adaptive fuzzy control system and updating dosing command values of a dosing command table for controlling a dosing unit of an aftertreatment system. The self-tuning circuit is configured to determine an input pressure value and generate a pressure control signal using the adaptive fuzzy control system based on the input pressure value, a detected input pressure, and an error amount. The self-tuning circuit is further configured to regulate the input pressure of reductant to the dosing unit from a reductant tank using a pressure control signal for a pressure control device. The self-tuning circuit is further configured to update a dosing command value of a dosing command table of the controller in conjunction with regulating the input pressure of reductant.

公开(公告)号：US09739225B2

公开(公告)日：2017-08-22

申请号：US15033359

申请日：2014-10-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Norihisa Nakagawa ,  Shuntaro Okazaki ,  Yuji Yamaguchi

IPC: F01N3/00 ,  F02D41/02 ,  F02D41/14 ,  F01N3/08 ,  F01N3/20

CPC classification number: F02D41/0295 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0864 ,  F01N3/20 ,  F01N2390/02 ,  F01N2430/06 ,  F01N2560/02 ,  F01N2570/16 ,  F02D41/0235 ,  F02D41/1441 ,  F02D41/1495 ,  F02D2200/0814 ,  F02D2200/0816

Abstract: The control system of an internal combustion engine performs normal operation control including lean control for making the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst a lean air-fuel ratio, and rich control for making the air-fuel ratio of the exhaust gas flowing into the exhaust purification catalyst a rich air-fuel ratio. The normal operation control includes judgment reference decreasing control decreasing the judgment reference storage amount in the lean control when during the time period of performing the lean control, the air-fuel ratio of the exhaust gas flowing out from the exhaust purification catalyst becomes the lean judged air-fuel ratio or more. The control system judges that the exhaust purification catalyst is abnormal when the judgment reference storage amount becomes less than a deterioration judgment value.

公开(公告)号：US09650034B2

公开(公告)日：2017-05-16

申请号：US14946303

申请日：2015-11-19

Applicant: HYUNDAI MOTOR COMPANY

Inventor： MinSu Kim

IPC: B60W10/06 ,  F01N3/18 ,  B60W20/14 ,  B60W10/08 ,  B60W10/30

CPC classification number: B60W20/14 ,  B60W10/06 ,  B60W10/08 ,  B60W10/30 ,  B60W2510/244 ,  B60W2710/0666 ,  B60W2710/083 ,  B60W2710/305 ,  B60Y2200/92 ,  B60Y2300/47 ,  B60Y2300/51 ,  B60Y2300/52 ,  B60Y2300/60 ,  B60Y2300/91 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/18 ,  F01N2390/02 ,  F01N2590/11 ,  F01N2900/08 ,  F01N2900/104 ,  Y10S903/93

Abstract: An apparatus for controlling a hybrid vehicle may include an engine that generates driving torque by combustion of fuel; an integrated starter-generator that starts the engine and generates electrical energy by selectively operating as a power generator; a drive motor that supports the power of the engine and generates electrical energy by selectively operating as a power generator; a battery that charges with the electrical energy generated by the integrated starter-generator and the drive motor; a nitrogen oxide purification device (LNT) that purifies nitrogen oxide included in exhaust gas exhausted from the engine; and a controller that controls engine torque by calculating a target engine torque for regenerating the nitrogen oxide purification device, supports the engine torque through the integrated starter-generator or the drive motor when a driving torque necessary for driving is greater than the target engine torque at a regeneration mode of the nitrogen oxide purification device, and performs regenerative braking the driving torque through the integrated starter-generator or the drive motor when the driving torque is less than the target engine torque.

公开(公告)号：US09644753B2

公开(公告)日：2017-05-09

申请号：US14897120

申请日：2014-07-14

Applicant: Norgren Limited

Inventor： John Michael Morris ,  Mark Edward Byers Sealy ,  Christopher Edward Narborough ,  William Benjamin Boult

IPC: F01N3/00 ,  F16K11/052 ,  F01N5/02 ,  F02D9/10 ,  F16K1/18 ,  F16K1/20 ,  F01N13/08 ,  F02M26/26

CPC classification number: F16K11/052 ,  F01N5/02 ,  F01N13/08 ,  F01N2240/02 ,  F01N2390/00 ,  F01N2390/02 ,  F01N2410/00 ,  F02D9/1005 ,  F02D9/103 ,  F02M26/26 ,  F16K1/18 ,  F16K1/20 ,  F16K1/2042 ,  F16K31/1635 ,  F16K31/521 ,  F16K37/0041 ,  Y02T10/16

Abstract: A flapper exhaust diverter valve (110) is provided. The flapper exhaust diverter valve (110) includes a valve body (210) comprising an exhaust inlet (212), an evaporator outlet (214), and a bypass outlet (216). The flapper exhaust diverter valve (110) also includes a flapper assembly (310) that is rotatably coupled to the valve body (210) at a first distal end (310a) of the flapper assembly (310).

公开(公告)号：US09625346B2

公开(公告)日：2017-04-18

申请号：US14405515

申请日：2013-06-05

Applicant: Continental Automotive GmbH

Inventor： Michael Nienhoff ,  Paul Rodatz

IPC: G01M3/02 ,  G01M3/40 ,  F01N11/00 ,  F01N3/20

CPC classification number: G01M3/025 ,  F01N3/208 ,  F01N11/00 ,  F01N2390/02 ,  F01N2550/05 ,  F01N2900/0418 ,  F01N2900/1822 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method for checking the leak-tightness of hydraulic components in an exhaust gas aftertreament unit of an internal combustion engine is disclosed. The exhaust gas aftertreament unit uses an electric motor to pump a liquid reductant from a reductant reservoir to a reductant injector that is kept closed. The reductant pump is switched on for a first predetermined period, and the electric current consumed by the electric motor is detected during this period. After a predetermined standstill time has passed, the reductant pump is switched on again for a second period identical to the first period, and the electric current consumed by the electric motor is again detected during this period. The electric currents detected during the two time periods are compared with each other, and the leak-tightness of the hydraulic components downstream of the reductant pump is evaluated based on the result of the comparison.

公开(公告)号：US09556790B2

公开(公告)日：2017-01-31

申请号：US14620695

申请日：2015-02-12

Applicant: Deere & Company

Inventor： Christopher T. McCord ,  Tien-Chuong Lim ,  Stephen M. Upchurch

IPC: F01N1/00 ,  F02B77/08 ,  F01N3/021 ,  F01N9/00 ,  F01N13/08

CPC classification number: F02B77/082 ,  F01N3/021 ,  F01N9/002 ,  F01N13/082 ,  F01N2240/20 ,  F01N2340/04 ,  F01N2390/02 ,  F01N2410/02 ,  F01N2410/04 ,  F01N2560/06 ,  F01N2590/08 ,  F01N2900/10 ,  F01N2900/1404 ,  Y02T10/20 ,  Y02T10/47

Abstract: A bi-directional tractor exhaust system with ground speed detection includes a downwardly directed exhaust pipe, an upwardly directed exhaust pipe, and an intermediate exhaust pipe connected to the outlet of a diesel particulate filter. An exhaust pipe valve may be opened or closed by an actuator to direct exhaust through the downwardly directed exhaust pipe during regeneration of the diesel particulate filter if a signal from a ground speed sensor indicates ground speed above a first speed, or through the upwardly directed exhaust pipe if the ground speed is below a second speed.

Abstract translation: 具有地面速度检测的双向牵引车排气系统包括向下定向的排气管，向上排出的排气管和连接到柴油机微粒过滤器的出口的中间排气管。 如果来自地面速度传感器的信号指示地面速度高于第一速度，或者通过向上排列的排气，排气管阀可以由致动器打开或关闭，以引导排气通过向下排出的排气管， 管道如果地面速度低于第二速度。

公开(公告)号：US20160237883A1

公开(公告)日：2016-08-18

申请号：US14623992

申请日：2015-02-17

Applicant: ELECTRO-MOTIVE DIESEL, INC.

Inventor： Gary R. Svihla ,  Nicholas Denman Norris

IPC: F02B37/18

CPC classification number: F02B37/183 ,  F01N2390/02 ,  Y02T10/144

Abstract: A bypass mechanism is disclosed for use with a turbocharger. The bypass mechanism may have an exhaust passage formed by at least a first wall, and a bypass manifold formed by at least a second wall surrounding the exhaust passage and including a space between the first wall and the second wall. The bypass mechanism may further have at least one opening in the first wall fluidly connecting the exhaust passage with the space. At least one valve is configured to open and close the opening to selectively allow exhaust gas to pass from the exhaust passage to the space through the at least one opening. The space may be fluidly connected to at least one entry passage of an exhaust stack. In addition, the at least one opening and the at least one entry passage may be positioned on opposite sides of the exhaust passage.

Abstract translation: 公开了一种与涡轮增压器一起使用的旁路机构。 旁通机构可以具有由至少第一壁形成的排气通道和由围绕排气通道的至少第二壁形成的旁通歧管，并且在第一壁和第二壁之间包括空间。 旁通机构还可以在第一壁中具有至少一个开口，该第一壁将排气通道与空间流体连接。 至少一个阀构造成打开和关闭开口，以选择性地允许废气从排气通道通过至少一个开口。 空间可以流体地连接到排气叠层的至少一个入口通道。 此外，至少一个开口和至少一个进入通道可以位于排气通道的相对侧上。