公开(公告)号：US12006900B1

公开(公告)日：2024-06-11

申请号：US18361117

申请日：2023-07-28

Applicant: Caterpillar Inc.

Inventor： Scot D Ward ,  Eric L Schroeder

IPC: F02M43/04 ,  F02D19/06 ,  F02D19/08 ,  F02M37/00

CPC classification number: F02M43/04 ,  F02D19/0628 ,  F02D19/0642 ,  F02D19/0665 ,  F02D19/0694 ,  F02D19/08 ,  F02M37/0064 ,  F02M37/0076 ,  F02D2200/06

Abstract: A system for measuring fuel delivery from a multi-fuel injector of a device includes a fuel injector for injecting a first fuel and a second fuel, a first fuel pump for supplying the first fuel to the fuel injector, a first sensor including a first measurement reservoir for measuring a volume of flow of the first fuel to the injector, the first measurement reservoir having a supply chamber that that decreases in volume upon actuation of the fuel injector, a second fuel pump for supplying the second fuel to the fuel injector, and a second sensor for measuring a volume of flow of the second fuel to the fuel injector.

公开(公告)号：US20190234320A1

公开(公告)日：2019-08-01

申请号：US15885084

申请日：2018-01-31

Applicant: Saudi Arabian Oil Company

Inventor： Esam Zaki Hamad ,  Eman AbdelHakim A.M. Tora ,  Amer A. Amer ,  Junseok Chang

IPC: F02D19/06 ,  F02M31/18 ,  F02M37/00 ,  F02D41/06 ,  F02D41/38 ,  B01D53/04

CPC classification number: F02D19/0671 ,  B01D53/0407 ,  B01D53/0454 ,  B01D2253/102 ,  B01D2253/104 ,  B01D2253/108 ,  B01D2253/204 ,  B60K15/03 ,  B60K2015/03105 ,  B60K2015/03414 ,  B60K2015/03514 ,  F02D19/0615 ,  F02D19/0649 ,  F02D19/0665 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/06 ,  F02D41/38 ,  F02D2200/021 ,  F02D2200/06 ,  F02M25/08 ,  F02M27/02 ,  F02M31/18 ,  F02M31/20 ,  F02M37/0064 ,  F02M37/0082 ,  F02M37/0088

Abstract: A vehicular propulsion system, a vehicular fuel system and a method of operating an internal combustion engine. A separation unit that makes up a part of the fuel system includes one or more adsorbent-based chambers such that the separation unit may selectively receive and separate at least a portion of onboard fuel into octane-enhanced and cetane-enhanced fuel components. A supply tank includes three compartments where the first contains the onboard fuel, the second receives a vaporized adsorbate from the separation unit and condenses at least a part of it into one of an octane-rich fuel component or a cetane-rich fuel component, while the third may either store the condensed and enriched fuel component or help condense more of the vaporized adsorbate. The condensing takes place through heat exchange between the onboard fuel and the vaporized adsorbate that are present within the various compartments of the supply tank. A controller may be used to determine a particular operational condition of the internal combustion engine such that the onboard fuel can be sent to one or more combustion chambers within the internal combustion engine without first passing through the separation unit, or instead to the separation unit in situations where the internal combustion engine may require an octane-rich or cetane-rich mixture.

公开(公告)号：US20190032618A1

公开(公告)日：2019-01-31

申请号：US15754944

申请日：2016-08-26

Applicant: Westport Power Inc.

Inventor： Dominique J. SOLERI ,  Patric OUELLETTE ,  Hamed KARIMI SHARIF

IPC: F02M65/00 ,  F02M53/04 ,  F02D17/02 ,  F02M25/14 ,  B08B5/02 ,  B08B17/06 ,  F02D41/00 ,  F02D41/40 ,  F02M21/02 ,  F02D41/22 ,  F02M43/04

CPC classification number: F02M65/008 ,  B08B5/02 ,  B08B17/06 ,  B08B2203/027 ,  F02B77/04 ,  F02D17/02 ,  F02D19/0605 ,  F02D19/0623 ,  F02D19/0647 ,  F02D19/0689 ,  F02D19/0694 ,  F02D19/081 ,  F02D41/0025 ,  F02D41/0027 ,  F02D41/008 ,  F02D41/22 ,  F02D41/401 ,  F02D2041/389 ,  F02D2200/06 ,  F02M21/0248 ,  F02M21/0263 ,  F02M21/0275 ,  F02M21/0293 ,  F02M25/14 ,  F02M43/04 ,  F02M53/043 ,  F02M2200/06 ,  F02M2200/46 ,  Y02T10/32 ,  Y02T10/36 ,  Y02T10/44

Abstract: A method for deposit mitigation in a gaseous fuel injector that introduces a gaseous fuel through a gaseous fuel orifice directly into a combustion chamber of an internal combustion engine includes at least one of a) reducing the ago length of the gaseous fuel orifice by substantially between 10% to 50% of a previous length of a previous gaseous fuel orifice showing deposit accumulation above a predetermined threshold; b) providing the gaseous fuel orifice with an inwardly and substantially linearly tapering profile; c) determining deposit mitigation is needed; and performing at least one of the following deposit mitigation techniques i) increasing gaseous fuel injection pressure wherein deposit accumulation is reduced during fuel injection; and ii) decreasing gaseous fuel temperature wherein a rate of deposit accumulation is reduced; and d) injecting compressed air through the gaseous fuel orifice during shutdown of the internal combustion engine; whereby torque loss in the internal combustion engine due to deposit accumulation in the gaseous fuel orifice is reduced below a predetermined value.

公开(公告)号：US20180334983A1

公开(公告)日：2018-11-22

申请号：US15597741

申请日：2017-05-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Gennaro MERLINO ,  Angelo CANCELLIERI ,  Umberto FERRARA ,  Francesco Concetto PESCE ,  Alessandro FORINA

IPC: F02D41/38 ,  F02D41/40 ,  F02D41/04

CPC classification number: F02D41/3827 ,  F02D41/04 ,  F02D41/403 ,  F02D41/405 ,  F02D2041/389 ,  F02D2200/06

Abstract: Methods and systems are provided for controlling fuel injections by a fuel injector in a cylinder of an internal combustion engine. First and second fuel injections are applied in each cycle of a piston in the cylinder. First and second electronic control signals are applied to the fuel injector to generate first and second fuel injections by the fuel injector during a first cycle of the piston. A hydraulic fusion state of the generated first and second fuel injections is determined. A parameter of the applied first and second electronic control signals is adjusted in response to determining the hydraulic fusion state and applied to the fuel injector to generate first and second fuel injections by the fuel injector during a second cycle of the piston subsequent to the first cycle.

公开(公告)号：US20180273015A1

公开(公告)日：2018-09-27

申请号：US15470132

申请日：2017-03-27

Applicant: FORD GLOBAL TECHNOLOGIES, LLC

Inventor： Douglas Raymond MARTIN ,  Kenneth James MILLER ,  Ted HALADYNA ,  Aed M. DUDAR ,  Robert David HANCASKY

IPC: B60W10/06 ,  F02D19/08 ,  F02D41/00 ,  F01M1/16

CPC classification number: B60W10/06 ,  F01M1/16 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/068 ,  F02D2041/224 ,  F02D2200/06 ,  F02D2250/11 ,  F02P5/1506

Abstract: A vehicle includes an engine and a controller programmed to, responsive to an estimated oil dilution level of the engine exceeding a first threshold, issue commands such that regenerative braking is inhibited to increase a temperature of the engine, and responsive to the estimated oil dilution level falling below the first threshold, discontinue issuing the commands.

公开(公告)号：US20180171956A1

公开(公告)日：2018-06-21

申请号：US15735210

申请日：2016-06-22

Applicant: CONTINENTAL AUTOMOTIVE FRANCE ,  CONTINENTAL AUTOMOTIVE GMBH

Inventor： Jerome DILEON ,  Jean-Luc FREMAUX ,  Philippe SERRECCHIA

IPC: F02M65/00 ,  F02D41/24 ,  B08B3/02 ,  B08B9/032

CPC classification number: F02M65/008 ,  B08B3/02 ,  B08B9/0325 ,  F02D29/02 ,  F02D41/2467 ,  F02D2200/06 ,  F02D2200/1002 ,  F02D2200/101

Abstract: In a method of cleaning injectors of a direct-injection controlled-ignition engine, while idling, maximum fuel pressure to be injected for cleaning is calculated, by executing for at least one predetermined engine operating speed an iterative loop. During each loop the injected fuel pressure value increases and the injection time corresponding to the increased pressure is determined, selecting for each operating speed a cleaning pressure equal either to the maximum fuel pressure to which an injection time greater than the calibrated minimum injection time determined for the operating speed corresponds or to a maximum limit pressure corresponding to a given calibrated pressure for the engine/injectors system. Secondly, a cleaning treatment includes selecting an operating speed allowing the maximum cleaning pressure and controlling an engine operation by applying this speed and programming the cleaning pressure over a treatment duration exceeding the operating time allowed while running under operating conditions of this kind.

公开(公告)号：US20180171896A1

公开(公告)日：2018-06-21

申请号：US15737495

申请日：2016-07-28

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yoichi IIHOSHI ,  Toshio HORI ,  Yoshihiko AKAGI ,  Shinsaku TSUKADA

IPC: F02D41/00 ,  F02D29/02 ,  B60W30/18 ,  B60W10/06 ,  B60W10/02 ,  F02D41/30 ,  F02D41/14

CPC classification number: F02D41/004 ,  B60W10/02 ,  B60W10/06 ,  B60W30/18072 ,  B60W2510/0208 ,  B60W2510/0647 ,  B60W2520/04 ,  B60W2540/103 ,  B60W2710/021 ,  B60W2710/0622 ,  B60W2710/065 ,  B60W2710/0655 ,  B60W2710/305 ,  F02D29/02 ,  F02D29/04 ,  F02D29/06 ,  F02D41/0032 ,  F02D41/022 ,  F02D41/042 ,  F02D41/08 ,  F02D41/12 ,  F02D41/1454 ,  F02D41/30 ,  F02D2200/06 ,  F02D2200/602 ,  F02M25/08 ,  Y02T10/76

Abstract: Introduction of a low fuel consumption technique such as downsizing turbos and idling stop decreases an intake pipe negative pressure (pump loss) of an internal combustion engine, and results in difficulty in emitting (evaporative fuel purge) a volatile fuel (volatile fuel) in a fuel tank by the negative pressure of the intake pipe of the internal combustion engine. A control device includes: a purge control unit which controls a purge valve which emits a volatile fuel of a fuel tank or a canister to an intake pipe of an internal combustion engine; and a power transmission control unit which controls a power transmission mechanism between the internal combustion engine and a drive wheel, and, in a state where the power transmission control unit disconnects a clutch, and the vehicle is coasting, the purge control unit opens the evaporative fuel valve and purges an evaporative fuel to the intake pipe.

公开(公告)号：US20180112618A1

公开(公告)日：2018-04-26

申请号：US15567736

申请日：2016-03-30

Applicant: DENSO CORPORATION

Inventor： Keisuke YANOTO

IPC: F02D41/30

CPC classification number: F02D41/30 ,  F01L9/04 ,  F02D41/20 ,  F02D2041/2013 ,  F02D2041/2027 ,  F02D2041/2034 ,  F02D2041/2051 ,  F02D2041/2058 ,  F02D2200/06 ,  F16K31/06 ,  H01F7/18

Abstract: A control apparatus, which controlling an operation of an injector provided to an internal combustion engine, includes: a voltage application unit applying a voltage raised to have a step-up target value to the injector to open the injector; a current measurement unit measuring a drive current supplied to the injector in response to an application of the voltage; and a calculator calculating a current difference value which indicates a difference between an actually-measured profile and a reference profile. The actually-measured profile indicates a time-variation in an actually-measured value of the drive current, and the reference profile is a profile set in advance. The step-up target value is corrected according to the current difference value that is calculated.

公开(公告)号：US09938949B2

公开(公告)日：2018-04-10

申请号：US14340178

申请日：2014-07-24

Applicant: Hyundai Motor Company

Inventor： Heesup Kim ,  Jeong Ho Kim

IPC: F02D41/00 ,  F02M69/54 ,  F02D41/38 ,  F02D41/22

CPC classification number: F02M69/54 ,  F02D41/3818 ,  F02D41/3854 ,  F02D2041/224 ,  F02D2200/06 ,  F02D2200/0602 ,  F02D2200/0606 ,  F02D2200/703 ,  F02D2250/02

Abstract: A low pressure fuel pump control system of a GDI engine may include a low pressure fuel pump primarily pressurizing fuel supplied from a fuel tank, a high pressure fuel pump secondarily pressurizing fuel from the low pressure fuel pump, a low pressure fuel pump pressure sensor and a high pressure fuel pump pressure sensor detecting fuel pressure of the low pressure fuel pump and the high pressure fuel pump, and a fuel supply pressure controller setting a final target pressure of the low pressure fuel pump by correcting a reference pressure, wherein the reference pressure is corrected by a low pressure correcting pressure according to temperature of the low pressure fuel pump and a correction pressure.

公开(公告)号：US20170284317A1

公开(公告)日：2017-10-05

申请号：US15507323

申请日：2015-08-27

Applicant: AISAN KOGYO KABUSHIKI KAISHA

Inventor： Junya KIMOTO ,  Yoshikazu MIYABE

IPC: F02D41/00 ,  F02M25/08

CPC classification number: F02D41/004 ,  F02D2200/06 ,  F02M25/0836 ,  F02M25/089

Abstract: An evaporated fuel processing device configured to adsorb evaporated fuel in a fuel tank to a canister and to feed the adsorbed evaporated fuel to an engine. The device includes an inner pressure sensor configured to detect a pressure in an interior space of the fuel tank, a valve-opening start position determination means configured to change the stroke amount of a flow control valve from an initial condition and to determine a valve-opening start position of the flow control valve based on a requirement that a range of variation of the inner pressure is equal to or greater than a predetermined value, a learning means configured to store the valve-opening start position, and a prohibition means configured to prohibit the valve-opening start position determination means from determining the valve-opening start position when the inner pressure falls within a predetermined pressure range relative to the atmospheric pressure.