公开(公告)号：US20240352901A1

公开(公告)日：2024-10-24

申请号：US18748392

申请日：2024-06-20

Applicant: WEICHAI POWER CO., LTD.

Inventor： Haifeng REN ,  Fei WANG ,  Bin PANG ,  Qingzhen MA ,  Huihui WANG ,  Lin CHEN ,  Wenchao MO ,  Xianfa XU

IPC: F02D41/00

CPC classification number: F02D41/0087 ,  F02D41/009 ,  F02D2200/0614 ,  F02D2200/101

Abstract: In a cylinder deactivation control method of an engine, a cylinder deactivation trigger moment of a to-be-controlled engine is determined; a second cycle and a cylinder deactivation mode corresponding to the next first cycle are determined according to the crankshaft rotation speed at the cylinder deactivation trigger moment, the target torque at the cylinder deactivation trigger moment, and a second cycle and a cylinder deactivation mode corresponding to the previous first cycle at the cylinder deactivation trigger moment; the fuel injection quantity of the ignition cylinder in the next first cycle is determined.

公开(公告)号：US11898506B1

公开(公告)日：2024-02-13

申请号：US18323897

申请日：2023-05-25

Applicant: Caterpillar Inc.

Inventor： Michael David Gerstner ,  Daniel Raymond Baldwin ,  Robert Graumüller

IPC: F02B3/00 ,  F02D19/06

CPC classification number: F02D19/061 ,  F02D19/0634 ,  F02D19/0649 ,  F02D19/0665 ,  F02D19/0673 ,  F02D19/0684 ,  F02D19/0689 ,  F02D19/0694 ,  F02D2200/0611 ,  F02D2200/0614

Abstract: An internal combustion engine system is described herein. The internal combustion engine system uses one or more fuels that may be hydrophilic. The system uses a water measuring sensor to determine the concentration of water in the hydrophilic fuel. To meet power demands, the system uses the measured water concentration to modify data stored in a fuel map. The fuel map provides a controller the pump speeds and mixing ratio of the fuels for a given power level. The system receives that data and modifies it based on the measured concentration of water.

公开(公告)号：US20230358188A1

公开(公告)日：2023-11-09

申请号：US18176865

申请日：2023-03-01

Applicant: Ford Global Technologies, LLC

Inventor： Georg Louven ,  Rainer Kiehn ,  Helmut Hans Ruhland ,  Krystian Dylong ,  Guenter Grosch

IPC: F02D41/00 ,  F02D41/40

CPC classification number: F02D41/401 ,  F02D41/0007 ,  F02D41/0027 ,  F02D41/0052 ,  F02D41/009 ,  F02D2041/389 ,  F02D2200/0602 ,  F02D2200/0614 ,  F02D2200/10 ,  F02D2200/101

Abstract: Methods and systems are provided for an engine system. In one example, a method includes adjusting an opening and a closing time of a fuel injector in response to an ignition time of a combustion mixture. The adjusting may include a threshold margin as a further parameter for adjusting the opening and the closing time.

公开(公告)号：US11739709B1

公开(公告)日：2023-08-29

申请号：US17881071

申请日：2022-08-04

Applicant: Nicholas Firsich ,  Alex Eskenazi-Gold ,  David R Pedro ,  William P Attard ,  Joseph D Falcon

Inventor： Nicholas Firsich ,  Alex Eskenazi-Gold ,  David R Pedro ,  William P Attard ,  Joseph D Falcon

IPC: F02D41/30 ,  F02D41/24 ,  F02D41/00 ,  F02D41/14

CPC classification number: F02D41/3094 ,  F02D41/0032 ,  F02D41/1401 ,  F02D41/2416 ,  F02D41/2422 ,  F02D41/2467 ,  F02D41/2487 ,  F02D2041/1429 ,  F02D2200/0614

Abstract: A port and direct fuel injection (PDI) fuel delivery system for a vehicle having an engine configured to selectively operate between a port fuel injection (PFI) mode, a gasoline direct injection (GDI) mode, and a PDI mode includes a PFI system including plurality of PFI injectors, and a GDI system including a plurality of GDI injectors. The PFI and GDI systems are configured to provide various split-ratios of fuel mass injection to the engine based on a particular engine operating condition. A controller is programmed to identify a known first long term fuel trim (LTFT) for a first split-ratio, identify a known second LTFT for a second split-ratio, generate a linear equation based on the known first and second LTFTs, and determine an unknown third LTFT for a third split-ratio by utilizing the linear equation to facilitate reducing fueling errors and emissions.

公开(公告)号：US11655775B1

公开(公告)日：2023-05-23

申请号：US17888047

申请日：2022-08-15

Applicant: UT-Battelle, LLC

Inventor： Bryan P. Maldonado Puente ,  Brian C. Kaul ,  Catherine D. Schuman ,  John Parker Mitchell ,  Steven R. Young

IPC: F02D41/24 ,  G06N3/049 ,  G06N3/08 ,  F02D41/00 ,  F02D41/38 ,  F02P5/15 ,  F02D41/02

CPC classification number: F02D41/2438 ,  F02D41/0002 ,  F02D41/0047 ,  F02D41/022 ,  F02D41/38 ,  F02P5/1502 ,  G06N3/049 ,  G06N3/08 ,  F02D2200/021 ,  F02D2200/04 ,  F02D2200/0614 ,  F02D2200/101 ,  F02D2200/501

Abstract: A system that controls a combustion engine stores network vectors in a memory that represent diverse and distinct spiking neural networks. The system decodes the network vectors and trains and evaluates the spiking neural networks. The system duplicates selected network vectors and crosses-over the duplicated network vectors that represent modified spiking neural networks. The system mutates the crossed-over duplicated network vectors by randomly modifying one or more portions of the crossing-over duplicated network vectors. The system meter exhaust gas into an intake manifold when an engine temperature exceeds a threshold, an engine load exceeds a threshold, an engine's rotation-per-minute rate exceeds a threshold, and a fuel flow exceeds a threshold. The system modifies fuel flow into an engine's combustion chamber on a cycle-to-cycle basis by the trained spiking neural network.

公开(公告)号：US20230141196A1

公开(公告)日：2023-05-11

申请号：US17454190

申请日：2021-11-09

Applicant: Transportation IP Holdings, LLC

Inventor： Matthew Hart ,  James Robert Mischler ,  Robert Alton ,  Joseph Audu Ishaku

IPC: F02D41/38 ,  F02D41/00 ,  B61C5/00

CPC classification number: F02D41/3827 ,  F02D41/0007 ,  B61C5/00 ,  F02D2200/04 ,  F02D2200/0614

Abstract: A method is provided for controlling an engine. In one example, the method may include injecting fuel to the engine; and during an operating condition, limiting injected fuel based on engine airflow to a smoke-fuel limit, the smoke-fuel limit transiently adjusted from a first smoke-fuel limit to a second smoke-fuel limit based on a duration operating at the smoke-fuel limit. In one example, the method may include during another operating condition, fuel injection not limited by the smoke-fuel limit. In some examples, the duration may be a time duration. In some examples, the duration may be a crank angle duration. In some examples, limiting the injected fuel is based on an estimated engine airflow and estimated fuel injection amount to the engine.

公开(公告)号：US20190242326A1

公开(公告)日：2019-08-08

申请号：US16266815

申请日：2019-02-04

Applicant: Hitachi, Ltd.

Inventor： Kanako ESAKI ,  Kohsei MATSUMOTO ,  Kiyoto ITO ,  Yuzo SHIRAKAWA ,  Hiroto NAITO

IPC: F02D41/26 ,  F02D41/00

CPC classification number: F02D41/263 ,  F02D41/0025 ,  F02D2200/0614 ,  F02D2200/0618 ,  G05B13/0265 ,  G06N20/00

Abstract: According to one embodiment, a machine control system includes: a selecting unit which acquires a state quantity of a machine converted from data acquired by a sensor provided in the machine to select two or more learning models according to the acquired state quantity; a composing unit which inputs the state quantity acquired by the selecting unit to each of the two or more learning models selected by the selecting unit to calculate a composed value using a command value output from each of the learning models; and a learning unit which outputs a command value with respect to the machine in a range based on the composed value calculated by the composing unit, acquires a state quantity of the machine, searches for a command value of a specific condition from a combination of the output command value and the acquired state quantity, and outputs the searched command value to the machine, thereby creating a new learning model.

公开(公告)号：US20190195160A1

公开(公告)日：2019-06-27

申请号：US16200712

申请日：2018-11-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Akiyoshi NEGISHI ,  Shin OKADA

IPC: F02D41/22 ,  F01N11/00 ,  F01N13/00 ,  F01N3/20 ,  F01N3/10 ,  F02M35/10

CPC classification number: F02D41/222 ,  F01N3/0253 ,  F01N3/103 ,  F01N3/206 ,  F01N11/002 ,  F01N11/007 ,  F01N13/008 ,  F01N2560/025 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/0408 ,  F01N2900/0416 ,  F01N2900/1402 ,  F01N2900/1404 ,  F02D41/1446 ,  F02D41/1447 ,  F02D41/1454 ,  F02D41/18 ,  F02D2200/04 ,  F02D2200/0614 ,  F02M35/10386

Abstract: An air flowmeter is arranged in an intake passage. An air-fuel ratio sensor is arranged downstream of an addition valve in an exhaust passage. An exhaust temperature sensor is arranged downstream of a catalyst. An air amount estimating process calculates an estimated air amount based on the air-fuel ratio detected by the air-fuel ratio sensor and the fuel amount injected by a fuel injection valve. An upward displacement anomaly determining process determines that there is an anomaly in which a detected value of the air flowmeter is greater than an actual value if a logical conjunction is true of the condition that the detected value of the air flowmeter is greater than the estimated air amount by a margin greater than or equal to a specified amount and the condition that an amount by which a detected value of the exhaust temperature sensor exceeds a reference value is smaller than or equal to a predetermined amount.

公开(公告)号：US20190170072A1

公开(公告)日：2019-06-06

申请号：US16190365

申请日：2018-11-14

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yuya YOSHIKAWA ,  Isao Nakajima ,  Akihiro Katayama ,  Ryo Suzuki ,  Sohichi Imai ,  Eiichiro Kido

IPC: F02D41/00 ,  F02P5/04 ,  F02P5/15 ,  F02D41/38 ,  F02D41/26

CPC classification number: F02D41/008 ,  F02D41/1408 ,  F02D41/1475 ,  F02D41/1497 ,  F02D41/1498 ,  F02D41/2458 ,  F02D41/263 ,  F02D41/38 ,  F02D41/401 ,  F02D2200/0614 ,  F02D2200/1002 ,  F02D2200/1015 ,  F02P5/045 ,  F02P5/15 ,  F02P5/1502

Abstract: A first limit requesting process limits a dither control process of fuel injection valves in such a manner that the absolute value of the difference between the air-fuel ratios of the cylinders becomes smaller when the degree of variation of the injection amounts of the fuel injection valves provided for respective cylinders is great than when the degree of variation is small. A second limit requesting process limits the dither control process in such a manner that the absolute value is smaller when the torque fluctuation amount of the internal combustion engine is great than when the torque fluctuation amount is small. The limiting process limits the dither control process in accordance with one of requests generated by the first limit requesting process and the second limit requesting process that causes the absolute value to be smaller than the other.

公开(公告)号：US20190145313A1

公开(公告)日：2019-05-16

申请号：US16300333

申请日：2017-04-20

Applicant: Robert Bosch GmbH

Inventor： Achim Hirchenhein ,  Alexander Schenck zu Schweinsberg ,  Klaus Joos

IPC: F02B77/08 ,  F02D41/22 ,  G01M15/11 ,  G01M15/04 ,  G01M15/06

CPC classification number: F02B77/083 ,  F02D41/0085 ,  F02D41/1497 ,  F02D41/22 ,  F02D41/221 ,  F02D41/2467 ,  F02D2200/0602 ,  F02D2200/0614 ,  F02D2200/0616 ,  F02D2200/101 ,  G01M15/042 ,  G01M15/06 ,  G01M15/11 ,  Y02T10/40

Abstract: A method is described for diagnosing errors in an internal combustion engine in which fuel is injected from a high-pressure accumulator into associated combustion chambers with the aid of multiple fuel injectors, a first value (Rstat,2) which is representative of a static flow rate of fuel through one of the fuel injectors being ascertained, a second value (Δn) which is representative of a running smoothness of the internal combustion engine being ascertained, if at least one of the two values (Rstat,2, Δn) deviates from the particular associated reference value (R′stat, Δn0), an error (F) being deduced, and the error (F) being assigned to the fuel injector and/or at least one further component and/or at least one operating phase of the internal combustion engine on the basis of deviations of the two representative values (Rstat,2, Δn) from the particular associated reference value (R′stat, Δn0).