公开(公告)号：US10060378B2

公开(公告)日：2018-08-28

申请号：US15161162

申请日：2016-05-20

Applicant: DENSO International America, Inc.

Inventor： Dallas J. Smolarek ,  Blaise D. Friery

IPC: F02D41/24 ,  F01M13/00 ,  F02M25/06

CPC classification number: F02D41/2464 ,  F01M13/0011 ,  F02D2200/0406 ,  F02D2250/08 ,  F02M25/06

Abstract: A sensor circuit for a positive crankcase ventilation (PCV) valve includes an electrical source, a measuring circuit, a position calculator, and a transmitter. The electrical source is configured to apply an electrical bias across a spring of the PCV valve. The electrical bias is applied between a first end of the spring and an opposite end of the spring. The measuring circuit is configured to measure a value of an electrical parameter of the spring while the electrical bias is applied. The electrical parameter indicates at least one of a voltage across the spring and a current through the spring. The position calculator is configured to calculate an inductance of the spring based on the value of the electrical parameter and calculate a position of the PCV valve based on the inductance. The transmitter is configured to output a signal that indicates the position of the PCV valve.

公开(公告)号：US10008049B2

公开(公告)日：2018-06-26

申请号：US15059452

申请日：2016-03-03

Applicant: GM Global Technology Operations LLC

Inventor： Wenbo Wang ,  Layne K. Wiggins ,  David R. Kosmalski

IPC: G07C5/08 ,  F01M13/00 ,  B60W10/00 ,  F02D41/22 ,  F01M11/10

CPC classification number: G07C5/0808 ,  B60W10/00 ,  F01M11/10 ,  F01M13/00 ,  F01M2013/0083 ,  F02D41/22 ,  F02D2200/025 ,  F02D2250/08 ,  G07C5/0816 ,  G07C5/0841 ,  Y02T10/40

Abstract: A fault diagnostic system of a vehicle includes a noise module that determines a noise value based on a plurality of differences between samples of a pressure signal generated by a pressure sensor located in a positive crankcase ventilation (PCV) system of an engine. A signal module determines a signal value based on the samples of the pressure signal generated by the pressure sensor located in the PCV system of the engine. A diagnostic value module determines a diagnostic value based on one of: (i) a product of the noise value and the signal value; and (ii) a sum based on the noise value and the signal value. A fault module selectively diagnoses a fault in the PCV system based on the diagnostic value and generates a malfunction indicator within a passenger cabin of the vehicle in response to the diagnosis of the fault in the PCV system.

公开(公告)号：US20180087460A1

公开(公告)日：2018-03-29

申请号：US15278049

申请日：2016-09-28

Applicant: General Electric Company

Inventor： Habeeb Khan PATHAN ,  James Robert SCHREINER ,  Milan Palinda KARUNARATNE ,  Bhanuprakash HARANAHALLI PANCHAKSHARI

IPC: F02D35/02 ,  F02D41/26 ,  F02D41/30 ,  F02D41/00 ,  F01M13/04 ,  F02D41/40

CPC classification number: F02D35/027 ,  F01M1/02 ,  F01M1/10 ,  F01M1/18 ,  F01M13/04 ,  F02D41/008 ,  F02D41/1498 ,  F02D41/22 ,  F02D41/26 ,  F02D41/28 ,  F02D41/3005 ,  F02D41/401 ,  F02D2041/288 ,  F02D2200/101 ,  F02D2200/1015 ,  F02D2250/08 ,  Y02T10/44

Abstract: Various systems and methods are provided for identifying cylinder knock. In one example, cylinder knock may be identified based on a knock monitor that identifies knock based on output from a crankshaft speed sensor.

公开(公告)号：US20170314431A1

公开(公告)日：2017-11-02

申请号：US15494375

申请日：2017-04-21

Applicant: Ford Global Technologies, LLC

Inventor： Baocheng Sun ,  Bruce Li ,  Bin Yin ,  Dallis Sun

IPC: F01M13/00 ,  F02D41/00 ,  F02M35/10

CPC classification number: F01M13/0011 ,  F01M13/00 ,  F01M2013/0022 ,  F01M2013/0038 ,  F02D41/0025 ,  F02D41/0087 ,  F02D2250/08 ,  F02M35/10222

Abstract: An engine system comprises an intake manifold including a manifold body downstream of an intake port and having a first through-aperture and a second through-apertures spaced apart from the first through-aperture on the manifold body; a positive crankcase ventilation (PCV) system including a first PCV branch and a second PCV branch communicated fluidly with the first through-aperture and the second through-aperture of the manifold body, respectively, and configured to route a blow-by gas in a crankcase to the intake manifold; and a variable valve assembly to regulate a flow passing through the first or second PCV branches.

公开(公告)号：US09797323B2

公开(公告)日：2017-10-24

申请号：US14818646

申请日：2015-08-05

Applicant: Ford Global Technologies, LLC

Inventor： Gopichandra Surnilla ,  Daniel A. Makled ,  Richard E. Soltis

IPC: F02D41/00 ,  F02D13/02 ,  F01M13/00 ,  G01M15/10 ,  F02D41/12 ,  F02D41/14

CPC classification number: F02D41/0055 ,  F01M13/00 ,  F02D13/0203 ,  F02D41/0005 ,  F02D41/123 ,  F02D41/1456 ,  F02D2041/1472 ,  F02D2250/08 ,  G01M15/104 ,  Y02T10/42 ,  Y02T10/47

Abstract: Methods and systems are provided for estimating a PCV flow to an engine based on the output of an exhaust gas oxygen sensor. During DFSO conditions, a reference voltage of the sensor is modulated initially with an intake throttle open and then with the intake throttle closed. PCV flow leaking past the piston valves in an aging engine, as well as an ambient humidity estimate, are inferred based on the outputs of the sensor during the modulating with the intake throttle open and closed.

公开(公告)号：US09669825B1

公开(公告)日：2017-06-06

申请号：US15004674

申请日：2016-01-22

Applicant: Ford Global Technologies, LLC

Inventor： Aed M. Dudar

IPC: B60W20/40 ,  B60K6/445 ,  B63H5/10 ,  F01L9/04 ,  B60W10/06 ,  B60W10/08 ,  F02M25/08 ,  F01M1/02 ,  F02D41/26

CPC classification number: B60W20/40 ,  B60W10/06 ,  B60W10/08 ,  B60W2900/00 ,  B60Y2200/92 ,  B60Y2306/03 ,  F01M1/02 ,  F01M13/022 ,  F02D41/0032 ,  F02D41/20 ,  F02D2041/2072 ,  F02D2250/08 ,  F02D2250/41 ,  F02M25/08 ,  Y10S903/93

Abstract: Methods and systems are provided for periodically activating a vehicle engine such that issues that may occur responsive to engine inactivity, such as rust and the sticking of components of the valve train, may be prevented. In one example, a vehicle engine increment off timer is used to monitor a duration wherein the vehicle engine has not been active, and responsive to expiration of the timer, spinning the engine unfueled in reverse while concurrently activating an onboard pump to direct air and fuel vapor to be stored in a fuel vapor canister. In this way, periodic engine lubrication operations may be conducted that do not require the use of fueled engine operation, thereby improving fuel economy and reducing undesired evaporative emissions.

公开(公告)号：US20160348599A1

公开(公告)日：2016-12-01

申请号：US15169048

申请日：2016-05-31

Applicant: MAN TRUCK & BUS AG

Inventor： Franz Werner PRÜMM

IPC: F02D41/08 ,  F02D41/14 ,  F02P15/10 ,  F01N1/00 ,  F02P23/04 ,  F02D41/00 ,  F01N3/10

CPC classification number: F02D41/08 ,  F01N1/00 ,  F01N3/101 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/0007 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0404 ,  F02D2200/1015 ,  F02D2250/08 ,  F02D2250/22 ,  F02P9/002 ,  F02P15/10 ,  F02P23/04 ,  Y02T10/22

Abstract: An operating method for an apparatus, having an internal combustion engine that can be operated in a lean mode and a stoichiometric mode, a crankcase, at least one combustion chamber and preferably a throttle element via which charge air can be fed from a charge air cooler to the combustion chamber internal combustion engine is switched to a lean mode during idling and is operated in the lean mode, with the result that, in particular, the pressure difference between the crankcase and the combustion chamber is reduced.

Abstract translation: 一种装置的操作方法，具有能够以稀模和化学计量模式操作的内燃机，曲轴箱，至少一个燃烧室，优选地节流元件，通过该装置可以从增压空气冷却器 在空转期间，燃烧室内燃机切换为稀薄模式，并且以稀薄模式运转，结果特别地减小了曲轴箱与燃烧室之间的压力差。

公开(公告)号：US20160341099A1

公开(公告)日：2016-11-24

申请号：US15155120

申请日：2016-05-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shintaro UTSUMI ,  Kohei KODAMA ,  Hiroki MURATA

IPC: F01P3/02 ,  F02D41/00 ,  F01P5/12 ,  F02B31/04 ,  F02M26/13

CPC classification number: F01P3/02 ,  F01M13/00 ,  F01P7/165 ,  F01P2003/024 ,  F01P2005/105 ,  F02B31/04 ,  F02D41/0002 ,  F02D2041/0015 ,  F02D2250/08 ,  F02F1/40 ,  F02M25/06 ,  F02M26/20 ,  Y02T10/146 ,  Y02T10/42

Abstract: An internal combustion engine includes: a low-temperature cooling water circulation system including a low-temperature cooling water channel; a high-temperature cooling water circulation system including a high-temperature cooling water channel; an intake port including a first branch port part and a second branch port part that are connected to a common combustion chamber; and a swirl control device configured to restrict the inflow of intake air from the first branch port part to the combustion chamber to increase the strength of a swirl flow generated inside a cylinder. The low-temperature cooling water channel includes a water jacket that covers the periphery of the first branch port part.

Abstract translation: 内燃机包括：低温冷却水循环系统，包括低温冷却水通道; 包括高温冷却水通道的高温冷却水循环系统; 进气口，包括连接到公共燃烧室的第一分支口部分和第二分支端口部分; 以及涡流控制装置，其被配置为限制从第一分支端口部分到燃烧室的进气的流入，以增加在气缸内产生的涡流的强度。 低温冷却水通道包括覆盖第一分支端口部分的周边的水套。

公开(公告)号：US20160251987A1

公开(公告)日：2016-09-01

申请号：US15053691

申请日：2016-02-25

Applicant: MAGNETI MARELLI S.p.A.

Inventor： Luigi DE LUCA ,  Jacopo BUCCHI ,  Stefano SGATTI ,  Massimo ZANOTTI

IPC: F01M13/00 ,  F01M13/04

CPC classification number: F01M13/0011 ,  F01M11/10 ,  F01M13/04 ,  F01M13/0416 ,  F01M2013/0072 ,  F01M2013/0438 ,  F02D41/22 ,  F02D2200/0406 ,  F02D2250/08 ,  G01M3/00 ,  G01M15/09 ,  Y02T10/40

Abstract: Method to control the sealing of a blow-by gas breather circuit of an internal combustion engine, comprising a separator device to agglomerate the particles of finely atomised lubricating oil and to remove the solid particulate particles and having an outlet connected by a pipe to an intake pipe through which the gas purified from the lubricating oil and the particulate flows out and a pressure sensor; the method providing the following steps: acquiring the signal coming from said pressure sensor; filtering the signal coming from the pressure sensor; integrating over time the square of the filtrated signal coming from the pressure sensor; and determining the sealing of the pipe according to the integrated signal which is the combustion energy generated by the internal combustion engine.

Abstract translation: 一种控制内燃机窜气通气回路密封的方法，包括一个分离器装置，使细雾化的润滑油颗粒结块，并除去固体颗粒，并将出口通过管道连接到进气口 从润滑油中净化的气体和颗粒流出的管道和压力传感器; 该方法提供以下步骤：获取来自所述压力传感器的信号; 过滤来自压力传感器的信号; 随着时间的推移积分来自压力传感器的过滤信号的平方; 以及根据作为内燃机产生的燃烧能量的积分信号确定管道的密封。

公开(公告)号：US09316131B2

公开(公告)日：2016-04-19

申请号：US13619856

申请日：2012-09-14

Applicant: John Eric Rollinger ,  Robert Roy Jentz ,  Ross Dykstra Pursifull

Inventor： John Eric Rollinger ,  Robert Roy Jentz ,  Ross Dykstra Pursifull

IPC: F01M13/00 ,  F01M11/10 ,  F01M13/02

CPC classification number: F01M11/10 ,  F01M13/021 ,  F01M13/023 ,  F01M2013/027 ,  F02D2250/08

Abstract: Methods and systems are provided for using a crankcase vent tube pressure or flow sensor for diagnosing a location and nature of crankcase system integrity breach. The same sensor can also be used for diagnosing air filter plugging and PCV valve degradation. Use of an existing sensor to diagnose multiple engine components provides cost reduction and sensor compaction benefits.