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公开(公告)号：US20190055873A1
公开(公告)日：2019-02-21
申请号：US15767329
申请日：2016-10-27
申请人： Scania CV AB
发明人： Mikael LUNDSTRÖM
CPC分类号： F01N11/007 , F01N3/20 , F01N3/2066 , F01N9/00 , F01N11/00 , F01N2550/02 , F01N2550/03 , F01N2550/05 , F01N2560/026 , F01N2560/14 , F01N2590/08 , F01N2590/10 , F01N2610/02 , F01N2610/148 , F01N2900/0416 , F01N2900/1818 , Y02A50/2325
摘要： The present invention relates to a method for restricting work produced by combustion in a combustion chamber, wherein an aftertreatment system is arranged for reduction of at least one substance resulting from the combustion, wherein the work produced by the combustion is restricted when there is a malfunction regarding reduction of the at least one substance. The method includes: performing a first evaluation regarding the reduction of the at least one substance, when the first evaluation indicates a malfunction, performing a second evaluation regarding the reduction of the at least one substance, the second evaluation being different from the first evaluation, and restricting work produced by the combustion only when a malfunction regarding reduction of the at least one substance is indicated also by the second evaluation.
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公开(公告)号：US20180326838A1
公开(公告)日：2018-11-15
申请号：US15768145
申请日：2016-09-26
发明人： Hartmut WOLF
IPC分类号： B60K15/035 , G07C5/08 , F01N3/20 , F01N9/00
CPC分类号： B60K15/035 , B60K2015/03217 , B60K2015/03361 , B60K2015/03576 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2610/02 , F01N2610/142 , F01N2610/1466 , F01N2610/148 , F01N2900/102 , F01N2900/1814 , F01N2900/1818 , G01F22/00 , G01F23/0092 , G07C5/0825 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： The present invention discloses an operating liquid container system, comprising a fuel container with a fuel fill level sensor, a urea container with a urea fill level sensor, and a tank control device which is connected to the fuel fill level sensor in order to receive data representing a fill level of the fuel container and to the urea fill level sensor in order to receive data representing a fill level of the urea container, wherein the tank control device is designed to determine, taking into consideration the data representing the fill level of the fuel container, a first distance that can be covered with the fuel quantity situated in the fuel container, wherein the tank control device is furthermore designed to determine, taking into consideration the data representing the fill level of the urea container, a second distance that can be covered with the urea quantity situated in the urea container, and wherein the tank control device is furthermore designed to output a warning signal if the first distance is longer than or equal to the second distance.
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3.发明申请公开(公告)号：US20180320576A1
公开(公告)日：2018-11-08
申请号：US15773058
申请日：2016-11-03
发明人： Josh BUTLER , Jurgen DEDEURWAERDER , Mihai BAJA
CPC分类号： F01N11/002 , B60K15/03 , F01N3/2066 , F01N11/00 , F01N2550/05 , F01N2610/02 , F01N2610/03 , F01N2610/144 , F01N2610/148 , F01N2900/1808 , F01N2900/1818 , F01N2900/1822 , F02D2200/0611 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A method is provided for monitoring a chemical agent concentration in a chemical solution stored in a tank of a system of a motor vehicle. The system includes a pump driven by a motor where the pressure of the pump is controlled by a controller. The method includes measuring a plurality of values characteristic of the energy transmitted by the motor to the pump for a corresponding plurality of pump pressure values; determining at least one parameter of a relationship between the energy transmitted by the motor to the pump and applied pump pressure values from the plurality of measured values and the corresponding plurality of pump pressure value; and comparing the at least one parameter to predetermined reference parameters.
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公开(公告)号：US10077727B2
公开(公告)日：2018-09-18
申请号：US14994531
申请日：2016-01-13
CPC分类号： F02D41/0275 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N2430/02 , F01N2610/02 , F01N2900/08 , F01N2900/1614 , F01N2900/1622 , F01N2900/1818 , F02D13/00 , F02D13/06 , F02D41/0087 , F02D41/3005 , F02D2041/0012 , F02D2200/0806 , Y02T10/18 , Y02T10/24
摘要： A fuel control module controls fuel injection of an engine based on a predetermined lean air/fuel ratio. The predetermined lean air/fuel ratio is fuel lean relative to a stoichiometric air/fuel ratio for the fuel. A cylinder control module selectively deactivates opening of intake and exhaust valves of M cylinders of the engine to increase removal of nitrogen oxide (NOx) from exhaust. M is an integer greater than 0 and less than a total number of cylinders of the engine. The fuel control module further: disables fueling of the M cylinders while opening of the intake and exhaust valves of the M cylinders is deactivated; and, while fueling of the M cylinders is disabled and opening of the intake and exhaust valves of the M cylinders is deactivated, controls fuel injection of other cylinders based on a predetermined rich air/fuel ratio that is fuel rich relative to the stoichiometric air/fuel ratio.
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公开(公告)号：US20180178162A1
公开(公告)日：2018-06-28
申请号：US15802833
申请日：2017-11-03
申请人： DENSO CORPORATION
发明人： Daisuke HONDA , Taiyo HIROI , Jun SUZUKI , Shunsuke MURAKAMI , Saki OKAMOTO
CPC分类号： B01D53/346 , B01D53/92 , B01D53/9431 , B01D2251/2067 , C10G70/00 , F01N3/208 , F01N9/00 , F01N2240/10 , F01N2240/16 , F01N2560/06 , F01N2610/02 , F01N2610/10 , F01N2610/1406 , F01N2610/144 , F01N2610/146 , F01N2610/1486 , F01N2900/0602 , F01N2900/08 , F01N2900/12 , F01N2900/1811 , F01N2900/1818 , Y02T10/47
摘要： A urea water agitation control device has an agitation control portion and a temperature sensor which detects a temperature of a urea water. The agitation control portion operates an agitation portion in a specified period which includes a part of a period in which the urea water temperature detected by the temperature sensor is kept at a eutectic point and the urea water radiates a latent heat of solidification.
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公开(公告)号：US09890678B2
公开(公告)日：2018-02-13
申请号：US14503414
申请日：2014-10-01
申请人： Baohua Qi
发明人： Baohua Qi
CPC分类号： F01N3/208 , F01N9/00 , F01N13/0093 , F01N2610/02 , F01N2610/14 , F01N2610/146 , F01N2900/0408 , F01N2900/1621 , F01N2900/1818 , Y02T10/24 , Y02T10/47
摘要： A multi-stage SCR control system including a front reductant dosing device, a front SCR device, a back reductant dosing device, a back SCR device, and a dosing controller. In normal control cycles, a NSR of the front SCR device is controlled below a stoichiometric reaction ratio to decrease system sensitivity to catalyst aging. In a diagnostic cycle, the NSR of the front or the back SCR device is controlled lower than the stoichiometric reaction ratio, and a reductant quality ratio, which is indicative of reductant quality and dosing accuracy, is calculated. In another diagnostic cycle, the NSR is controlled above the stoichiometric reaction ratio, and an average deNOx efficiency is calculated. The reductant quality ratio and the average deNOx efficiency values are further used in SCR feedback control and permanent catalyst damages can also be isolated from temporary catalyst poisons with these values after a thermal recovery event is completed.
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公开(公告)号：US09884293B2
公开(公告)日：2018-02-06
申请号：US15098633
申请日：2016-04-14
CPC分类号： B01D53/9495 , B01D53/9418 , B01D2251/2067 , B01D2255/20738 , B01D2255/20761 , B01D2255/50 , B01D2255/9022 , B01D2255/911 , B01D2258/012 , B01J23/002 , B01J23/34 , B01J29/072 , B01J37/0244 , B01J37/0246 , B01J2229/186 , B01J2523/00 , F01N3/103 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N2510/06 , F01N2900/1411 , F01N2900/1602 , F01N2900/1818 , Y02T10/24 , Y02T10/47 , B01J2523/3712 , B01J2523/43 , B01J2523/72
摘要： An object is to provide technology that enables an NOx catalyst to exercise its NOx reduction capability satisfactorily at any flow speed of the exhaust gas flowing into the NOx catalyst. An exhaust gas purification apparatus for an internal combustion engine includes a selective catalytic reduction NOx catalyst including at least a first catalyst layer having capability of reducing NOx and a second catalyst layer having oxidation capability and arranged closer to a catalyst substrate than the first catalyst layer. The apparatus has a supply valve for adding a specific addition quantity of reducing agent for reducing NOx to inflowing exhaust gas flowing into the selective catalytic reduction NOx catalyst. The apparatus further has a controller that is configured to control addition of the reducing agent by the supply valve based on the flow speed of the inflowing exhaust gas in such a way that the concentration of the reducing agent in a reducing agent atmosphere formed in the inflowing exhaust gas in a reducing agent addition period becomes equal to a specific concentration that is determined based on the flow speed of the inflowing exhaust gas and at which the reducing agent is assumed not to reach the second catalyst layer, when the temperature of the selective catalytic reduction NOx catalyst exceeds a specific temperature at which reduction of NOx by the first catalyst layer is carried out.
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8.发明申请公开(公告)号：US20180023449A1
公开(公告)日：2018-01-25
申请号：US15362667
申请日：2016-11-28
发明人： Jae Yoon JUNG , Oheun KWON
CPC分类号： F01N11/00 , F01N3/2066 , F01N11/002 , F01N2610/02 , F01N2610/1406 , F01N2900/1811 , F01N2900/1814 , F01N2900/1818 , Y02T10/24 , Y02T10/47
摘要： A method of adjusting and displaying urea solution level measurement value may include measuring urea solution concentration injected into a urea solution tank by a urea solution quality sensor, determining whether unclean urea solution is injected into the urea solution tank by the measured urea solution concentration, adjusting urea solution level value according to the urea solution concentration when the unclean urea solution is injected into the urea solution tank, comparing urea solution level measurement value with reference urea solution level measurement value, and lighting up a warning lamp when the urea solution level measurement value is lower than the reference urea solution level measurement value.
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公开(公告)号：US09822685B2
公开(公告)日：2017-11-21
申请号：US14512609
申请日：2014-10-13
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N2610/02 , F01N2610/085 , F01N2610/1406 , F01N2610/1426 , F01N2610/1433 , F01N2610/144 , F01N2610/1453 , F01N2610/146 , F01N2610/1473 , F01N2610/1493 , F01N2900/1812 , F01N2900/1818 , Y02T10/24
摘要： An exhaust aftertreatment system may include a reductant supply and diluent supply conduits, an injector and a control module. The reductant supply conduit includes a first valve controlling a flow of reductant through the reductant supply conduit. The diluent supply conduit includes a second valve controlling a flow of diluent through the diluent supply conduit. The injector is in fluid communication with the reductant supply conduit and the diluent supply conduit and is configured to provide fluid to an exhaust stream. The control module may control the first valve to provide a targeted amount of reductant through the injector. The control module may control the second valve to maintain a fluid flow rate through the injector that is at or above a minimum flow rate threshold of the injector based on a difference between a flow rate through the reductant supply conduit and the minimum flow rate threshold.
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公开(公告)号：US20170268398A1
公开(公告)日：2017-09-21
申请号：US15329974
申请日：2015-06-20
申请人： Daimler AG
CPC分类号： F01N3/208 , F01N3/2066 , F01N9/00 , F01N11/00 , F01N2550/05 , F01N2560/026 , F01N2610/02 , F01N2900/0418 , F01N2900/1402 , F01N2900/1818 , Y02A50/2325 , Y02T10/24 , Y02T10/47
摘要： A method and a control assembly for operating an exhaust gas system of a motor vehicle is disclosed. Measuring values are evaluated, which indicate a content of nitrogen oxides in an exhaust gas downstream of a catalytic device. The catalytic device is adapted to diminish the content of nitrogen oxides in the exhaust gas produced by an engine of the motor vehicle. Based on the measuring values a quality of a reducing agent supplied to the catalytic device is assessed. The method includes determining whether reducing agent has been filled into a storage tank. A plurality of measuring values is captured during a predetermined period of time, and a magnitude and a frequency of the plurality of measuring values are taken into account to assess the quality of the reducing agent.
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