公开(公告)号：US12116961B1

公开(公告)日：2024-10-15

申请号：US18364795

申请日：2023-08-03

Applicant: Ford Global Technologies, LLC

Inventor： Eric Luehrsen ,  Sumanth Reddy Dadam ,  Edward Doemer ,  Gladys Galicia ,  Adam Krach

IPC: F02M26/49 ,  F02D41/00 ,  F02M26/22 ,  F02M26/47 ,  F02P5/15

CPC classification number: F02M26/49 ,  F02D41/0007 ,  F02D41/0047 ,  F02M26/22 ,  F02M26/47 ,  F02P5/1516

Abstract: Methods and systems are provided for an exhaust gas recirculation (EGR) system. In one example, a method includes determining a present EGR valve offset and an historical EGR valve offset and comparing the present EGR valve offset and the historical EGR valve offset to determine a presence of an EGR leak.

公开(公告)号：US20240317212A1

公开(公告)日：2024-09-26

申请号：US18580467

申请日：2022-05-27

Applicant: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA

Inventor： Kazumichi TAKAHASHI ,  Hideo MATSUNAGA ,  Yoshikazu MATSUDA ,  Masanori AIHARA

IPC: B60W20/50 ,  B60W10/06 ,  F02D41/06 ,  F02M26/49

CPC classification number: B60W20/50 ,  B60W10/06 ,  F02D41/068 ,  F02M26/49 ,  B60W2510/068 ,  B60W2510/244 ,  B60W2710/0644 ,  F02D2200/0802 ,  F02D2200/503

Abstract: A control device for a hybrid vehicle determines whether an EGR valve has an opening failure, and performs a pre-operation in which the engine is operated at a load smaller than a load in a series mode for a certain period of time while the vehicle is driven by a motor immediately before switching from an EV mode to the series mode. The pre-operation has a normal pre-mode in which the engine is operated at a first load when it is determined that the EGR valve does not have an opening failure, and a small failure pre-mode and a large failure pre-mode in which the engine is operated at a second load larger than the first load when it is determined that the EGR valve has the opening failure.

公开(公告)号：US20230374958A1

公开(公告)日：2023-11-23

申请号：US18320777

申请日：2023-05-19

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Douglas Anthony Hughes ,  Brandon Dennis Biller ,  Jim Kevin Spring ,  Jesse Drummond ,  Matthew Fortini

IPC: F02M26/49 ,  F02B33/38 ,  F02B39/10 ,  F02B33/34 ,  F04C18/12 ,  F04C28/08 ,  F04C28/06 ,  F02D41/00 ,  F02M26/50 ,  F02M26/34 ,  F04C18/14 ,  F02M26/00 ,  F04C29/04 ,  F04C29/02

CPC classification number: F02M26/49 ,  F02B33/38 ,  F02B39/10 ,  F02B33/34 ,  F04C18/126 ,  F04C28/08 ,  F04C28/06 ,  F02D41/0065 ,  F02D41/0007 ,  F02M26/50 ,  F02D41/006 ,  F02M26/34 ,  F04C18/14 ,  Y02T10/40 ,  F02M26/00 ,  F04C29/04 ,  F04C29/02 ,  Y02T10/12

Abstract: A method of operating exhaust gas recirculation pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to an internal combustion engine; providing an EGR control unit linked to the EGR pump assembly; providing sensors linked to the EGR control unit; determining if a motor speed is within a predetermined target in step S1 wherein when motor speed=predetermined target then; determining if a motor torque is within a predetermined target in step S2 wherein when motor torque=predetermined target then; determining if a motor temperature is within a predetermined target in step S3 wherein when motor temperature=predetermined target then; and maintaining operation of the exhaust gas recirculation pump.

公开(公告)号：US11668269B2

公开(公告)日：2023-06-06

申请号：US16962459

申请日：2019-01-17

Applicant: EATON INTELLIGENT POWER LIMITED

Inventor： Douglas Anthony Hughes ,  Brandon Dennis Biller ,  Jim Kevin Spring ,  Jesse Drummond ,  Matthew Fortini

IPC: F02M26/49 ,  F02M26/34 ,  F04C28/06 ,  F04C28/08 ,  F04C18/12 ,  F02M26/33 ,  F02M26/05 ,  F02M26/47 ,  F02M26/50 ,  F02D41/00 ,  F02B1/14 ,  F02B3/06 ,  F02B33/38 ,  F02B39/10 ,  F02B33/34 ,  F04C18/14 ,  F04C29/02 ,  F04C29/04 ,  F02M26/00

CPC classification number: F02M26/49 ,  F02B1/14 ,  F02B3/06 ,  F02B33/34 ,  F02B33/38 ,  F02B39/10 ,  F02D41/006 ,  F02D41/0007 ,  F02D41/0065 ,  F02M26/05 ,  F02M26/33 ,  F02M26/34 ,  F02M26/47 ,  F02M26/50 ,  F04C18/126 ,  F04C28/06 ,  F04C28/08 ,  F02M26/00 ,  F02M2026/004 ,  F04C18/14 ,  F04C29/02 ,  F04C29/04 ,  Y02T10/12 ,  Y02T10/40

Abstract: A method of operating an exhaust gas recirculation pump for an internal combustion engine including: providing an EGR pump assembly including an electric motor coupled to a roots device having rotors, the EGR pump operably connected to an internal combustion engine; providing an EGR control unit lined to the EGR pump assembly; providing sensors linked to the EGR control unit; determining if a motor speed is within a predetermined target (step SI), wherein when the motor speed is within the predetermined target then; determining if a motor torque is within a predetermined target (step S2) wherein when the motor torque is within the predetermined target then; determining if a motor temperature is within a predetermined target (step S3) wherein when the motor temperature is within the predetermined target then; maintaining operation of the exhaust gas recirculation pump.

公开(公告)号：US20230151775A1

公开(公告)日：2023-05-18

申请号：US17916326

申请日：2020-04-02

Applicant: NISSAN MOTOR CO., LTD.

Inventor： Taichi ANDO ,  Kenji SUZUKI

IPC: F02D41/00 ,  F02M26/49

CPC classification number: F02D41/0072 ,  F02D41/005 ,  F02M26/49

Abstract: An EGR estimation method for an internal combustion engine 1 estimates an EGR rate in an intake and exhaust system 10, 20 of an internal combustion engine, the intake and exhaust system 10, 20 of an internal combustion engine including an intake system 10, an exhaust system 20, and an EGR device 40, the EGR device 40 includes an EGR passage 41 and an EGR valve 43. The EGR estimation method includes determining a gas replacement state by exhaust gas and fresh air in an upstream EGR passage, which is a portion of the EGR passage between the EGR valve and the exhaust passage, when fuel cut of the internal combustion engine is started and the EGR valve is fully closed; and estimating the EGR rate based on a result of the determination.

公开(公告)号：US20190195153A1

公开(公告)日：2019-06-27

申请号：US15853428

申请日：2017-12-22

Applicant: Ford Global Technologies, LLC

Inventor： Aed M. Dudar

IPC: F02D41/00 ,  F02D41/14 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02M26/47 ,  F02M26/48 ,  F02M26/49

CPC classification number: F02D41/0077 ,  F02D41/0072 ,  F02D41/1448 ,  F02D41/1456 ,  F02D2041/0017 ,  F02M26/08 ,  F02M26/23 ,  F02M26/43 ,  F02M26/47 ,  F02M26/48 ,  F02M26/49

Abstract: Methods and systems are provided for diagnosing degradation of an exhaust gas recirculation (EGR) valve. In one example, a method may include, during a vehicle key-off condition, routing compressed air through an EGR passage housing the EGR valve, and indicating degradation of the EGR valve based on a change in an estimated EGR pressure, upon a commanded change in EGR valve position.

公开(公告)号：US20180135542A1

公开(公告)日：2018-05-17

申请号：US15653712

申请日：2017-07-19

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Hong Kil BAEK ,  Seung Woo Lee ,  Tae Won Lee

IPC: F02D41/00

CPC classification number: F02D41/0052 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/2066 ,  F01N2240/30 ,  F01N2560/08 ,  F01N2560/14 ,  F01N2610/02 ,  F02D19/0671 ,  F02D41/0025 ,  F02D41/0055 ,  F02D41/0065 ,  F02D41/22 ,  F02M26/22 ,  F02M26/36 ,  F02M26/47 ,  F02M26/49 ,  Y02T10/36 ,  Y02T10/40

Abstract: A reforming system may include an engine; an intake line connected to the engine; an exhaust line connected to the engine; a reformer provided at an exhaust gas recirculation (EGR) line diverging from the exhaust line and mixing the exhaust gas with fuel; a front end pressure sensor provided at the EGR line of the front end portion of the reformer and measuring pressure of the exhaust gas of the front end portion of the reformer; a rear end pressure sensor provided at the EGR line of the rear end portion of the reformer and measuring pressure of the exhaust gas of the rear end portion of the reformer; and a reforming controller configured for determining whether reforming continues on the basis of a pressure difference between the front end portion and the rear end portion of the reformer measured by the front end and the rear end sensors.

公开(公告)号：US09897030B2

公开(公告)日：2018-02-20

申请号：US15144584

申请日：2016-05-02

Applicant: Ford Global Technologies, LLC

Inventor： Timothy Joseph Clark ,  Gopichandra Surnilla ,  Matthew John Gerhart ,  Daniel Joseph Styles

IPC: F02B33/44 ,  F02N3/00 ,  F02B47/10 ,  F02M25/07 ,  F02D41/24 ,  F02M26/08 ,  F02M26/40 ,  F02D41/00 ,  F02D41/08 ,  F02D41/12 ,  F02D41/14 ,  F02M26/49

CPC classification number: F02D41/2474 ,  F02D41/0052 ,  F02D41/0072 ,  F02D41/08 ,  F02D41/123 ,  F02D41/144 ,  F02D41/2445 ,  F02D2041/141 ,  F02M26/08 ,  F02M26/40 ,  F02M26/49 ,  Y02T10/47

Abstract: Methods and systems are provided for accurately learning the zero point of an intake gas oxygen sensor during selected engine no-fueling conditions. The learned zero point is used to infer EGR flow and accordingly adjust EGR valve control. In addition, EGR valve leakage is diagnosed based on the zero point learned during a DFSO adaptation relative to a zero point learned during an idle adaptation.

公开(公告)号：US09879598B2

公开(公告)日：2018-01-30

申请号：US14908294

申请日：2014-07-31

Applicant: ISUZU MOTORS LIMITED

Inventor： Satoshi Hanawa ,  Tadashi Uchiyama ,  Hidekazu Fujie ,  Naoto Murasawa

IPC: F02B77/08 ,  F02B29/04 ,  F02M26/05 ,  F02M26/49 ,  F02M26/22 ,  F02M35/10 ,  F02M26/47 ,  F02D41/22 ,  F02D41/00

CPC classification number: F02B77/083 ,  F02B29/04 ,  F02D41/22 ,  F02D2041/0067 ,  F02D2200/0414 ,  F02D2200/0416 ,  F02M26/05 ,  F02M26/22 ,  F02M26/47 ,  F02M26/49 ,  F02M35/1038 ,  Y02T10/146

Abstract: A diagnosis device diagnoses a cooler adapted to cool a fluid flowing through intake and exhaust systems of an engine, and includes: a downstream temperature sensor for detecting a fluid temperature downstream of the cooler; a fluid temperature calculation unit for calculating a fluid temperature upstream of the cooler based on a fluid state quantity; a sensor output value calculation unit for assuming an upstream temperature sensor configured to detect a fluid temperature upstream of the cooler, reflecting a sensor response delay in the calculated fluid temperature, and calculating an estimated sensor output value of the upstream temperature sensor; and a cooler diagnosis unit for diagnosing the cooling efficiency of the cooler based on an actual sensor input value entered from the downstream temperature sensor and the calculated estimated sensor output value.

公开(公告)号：US09856814B2

公开(公告)日：2018-01-02

申请号：US14493072

申请日：2014-09-22

Applicant: FPT Industrial S.P.A.

Inventor： Fabio Odello ,  Salvatore Musumeci ,  Francesco Dell'Unto

IPC: F02D41/22 ,  F01N13/00 ,  F02D41/00 ,  F02D41/18 ,  F02D41/14 ,  F02M26/06 ,  F02M26/49 ,  G01M15/05 ,  G01M15/09 ,  F02M35/10

CPC classification number: F02D41/22 ,  F01N13/008 ,  F02D41/0007 ,  F02D41/0052 ,  F02D41/0072 ,  F02D41/1456 ,  F02D41/146 ,  F02D41/18 ,  F02D2200/0614 ,  F02M26/06 ,  F02M26/49 ,  F02M35/10386 ,  G01M15/05 ,  G01M15/09 ,  Y02T10/47

Abstract: A system for detecting a leakage/failure in in an intake line of an internal combustion engine comprising an intake line (IL) and an exhaust line (EL), means (HFM) for measuring or for estimating a quantity of fresh air ({dot over (m)}HFM) entering said intake line (IL), means for measuring or for estimating a quantity of fuel ({dot over (m)}FUEL) injected in the engine (E), measurement or estimation means (λ and/or NOx), on the exhaust line, adapted to provide a first value (λmeasured) of an air/fuel ratio introduced in the internal combustion engine (E), the system comprising processing means (ECU) adapted to calculate a second value (λexp) of said air/fuel ratio, calculated on the basis of the measured and estimated quantities of fresh air ({dot over (m)}HFM) and fuel ({dot over (m)}FUEL) to calculate an error (λerr) between the first and the second value (λmeasured−λexp) and to detect a condition of leakage/failure if said error is outside a predefined interval [λerr−, λerr+] containing the value zero.