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公开(公告)号：US11686264B1
公开(公告)日：2023-06-27
申请号：US17822172
申请日：2022-08-25
发明人： J. Michael Gwidt , Daniel P. Himes
CPC分类号： F02D41/029 , F02D13/0261 , F02D41/0007 , F02D41/1446 , F02D41/1466
摘要： In accordance with exemplary embodiments, methods and systems are provided for controlling particulate filter regeneration for a particulate filter of a drive system of a vehicle, including: obtaining sensor data pertaining to the drive system via one or more sensors of the vehicle; determining, via a processor of the vehicle, when particulate filter regeneration is warranted, using the sensor data; and providing particulate filter regeneration while performing scavenging with respect to the drive system, via instructions provided by the processor, when it is determined that particulate filter regeneration is warranted.
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公开(公告)号：US10001043B2
公开(公告)日：2018-06-19
申请号：US15105410
申请日：2014-12-12
申请人： Robert Bosch GmbH
CPC分类号： F01N9/00 , F01N11/00 , F02D41/1446 , F02D41/1466 , F02D41/1494 , F02D41/222 , F02D2200/0802 , G01N15/0606 , G01N15/0656 , G01N2015/0046 , Y02T10/40
摘要： The invention relates to a method and a device, in particular a control and evaluation unit, for operating at least one exhaust gas sensor for monitoring the functionality of an emission control system in the exhaust tract of an internal combustion engine, wherein the exhaust gas sensor is operated at least intermittently at high temperatures and has a thermal shock sensitivity inherent to the design, and in which a heating phase can be implemented at least intermittently prior to a regeneration phase or prior to a measuring operation phase, wherein a clearly lower temperature is set in this heating phase in comparison to the regeneration temperature or the measuring operation temperature. According to the invention, the function for dew point recognition and re-release of a dew point end is adaptively implemented and influenced by at least one water detection criterion or at least one flood detection criterion. By this means, an improved dew point detection is achieved after driving through water, as a result of a significant reduction of tolerances and an earlier release of the dew point end for the exhaust gas sensor.
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3.发明授权公开(公告)号：US09964056B2
公开(公告)日：2018-05-08
申请号：US14858523
申请日：2015-09-18
发明人： Roy James Primus , Omowoleola Chukwuemeka Akinyemi , Thomas Michael Lavertu , James Robert Mischler , Venu Gummadavelli Gupta
IPC分类号： F02D41/00 , F02B37/00 , F02B37/013 , F02B37/18 , F02M26/43 , F02M26/05 , F02M26/08 , F02B29/04 , F02D41/14 , F02D41/24 , F02M26/10 , F02M26/23 , F02M26/34 , F02M26/47
CPC分类号： F02D41/0052 , F02B29/0412 , F02B29/0425 , F02B29/0437 , F02B37/004 , F02B37/013 , F02B37/18 , F02D41/0007 , F02D41/1454 , F02D41/146 , F02D41/1466 , F02D41/2422 , F02D2200/0406 , F02D2200/0414 , F02D2200/703 , F02M26/05 , F02M26/08 , F02M26/10 , F02M26/23 , F02M26/34 , F02M26/43 , F02M26/47 , Y02T10/144 , Y02T10/47
摘要： A method includes controlling an engine speed based on: intake manifold air temperature and/or intake manifold pressure one, or more, of the following data parameters: an engine load as a function of a fuel level, a fuel injecting timing, an intake oxygen concentration, a constituent concentration from the exhaust gas flow, an engine power, and an engine torque. The method also recirculates a portion of the exhaust gas flow to the combustion cylinders of the engine via a recirculation channel, as a function of intake manifold temperature and/or intake manifold pressure at which the engine is operated. An engine system, other methods, and a non-transitory computer readable medium encoded with a program, to enable a processor-based control unit to control aspects of the engine are also disclosed.
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公开(公告)号：US20170328248A1
公开(公告)日：2017-11-16
申请号：US15519943
申请日：2016-01-07
申请人： DENSO CORPORATION
发明人： Hiroaki FUJII , Shingo NAKATA
CPC分类号： F01N3/022 , F01N3/023 , F01N3/035 , F01N3/204 , F02D41/1466 , F02D41/22 , F02D41/222 , F02D2200/0812 , F02M35/02 , Y02T10/40
摘要： An abnormality diagnosis device includes a partially-plugged filter, a pressure difference sensor, a PM sensor, a first estimation portion estimating a diagnosis amount of PM from the partially-plugged filter, according to a running condition of the internal combustion engine, a second estimation portion estimating the diagnosis amount of PM according to an output of the pressure difference sensor, a third estimation portion estimating the diagnosis amount of PM according to an output of the PM sensor, and an abnormality diagnosis portion distinctly determining an abnormality of the internal combustion engine, an abnormality of the partially-plugged filter, and an abnormality of the PM sensor by comparing the diagnosis amount of PM estimated by the first estimation portion, the diagnosis amount of PM estimated by the second estimation portion, and the diagnosis amount of PM estimated by the third estimation portion.
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公开(公告)号：US09790854B2
公开(公告)日：2017-10-17
申请号：US14663483
申请日：2015-03-20
发明人： Kouseki Sugiyama , Sho Sakurai
CPC分类号： F02B77/04 , F02D35/023 , F02D35/024 , F02D41/1466 , F02P19/026 , F02P19/027 , F02P19/028 , F23Q7/001 , F23Q2007/002
摘要： When only smoke is generated, the sensor sensitivity is not substantially changed from the initial value. When both smoke and unburned HC are generated, the number of times the sensor sensitivity becomes lower than the initial value is increased. From these results, it can be understood that a deposit is formed in the presence of unburned HC and smoke existing simultaneously. The degree of reduction in sensor sensitivity becomes higher if the smoke concentration is increased when the unburned HC concentration condition is fixed. From this result, it can also be understood that while the coexistence of smoke and unburned HC is a prerequisite, unburned HC contributes largely to the formation of a deposit.
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公开(公告)号：US09617899B2
公开(公告)日：2017-04-11
申请号：US13706048
申请日：2012-12-05
CPC分类号： F01N11/007 , F01N11/00 , F01N2550/04 , F01N2900/1411 , F02D41/1466 , F02D41/1494 , F02D41/222 , Y02T10/40 , Y02T10/47
摘要： Various systems and methods are described for a particulate matter sensor coupled to an exhaust system of an engine. One example method comprises, during a measurement mode, generating a particulate flow rate based on the sensor and adjusting one or more engine operating parameters based on the flow rate. The method further includes, during a reduced contamination mode, heating the sensor to repel particulate from the sensor, and not adjusting the one or more operating parameters based on the sensor.
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公开(公告)号：US09534524B1
公开(公告)日：2017-01-03
申请号：US14743606
申请日：2015-06-18
IPC分类号： F01N11/00 , F01N3/025 , F02D41/30 , F02D41/00 , F01N9/00 , F01N3/023 , F01N3/021 , B01D46/00 , F02D41/14 , F02D41/22
CPC分类号： F01N3/025 , B01D46/0086 , F01N3/021 , F01N3/023 , F01N9/002 , F01N11/00 , F01N2430/00 , F01N2550/04 , F01N2560/05 , F01N2560/20 , F01N2900/0416 , F01N2900/0418 , F01N2900/0421 , F01N2900/0422 , F01N2900/1606 , F02D41/029 , F02D41/1466 , F02D41/1494 , F02D2041/227 , F02D2041/228 , F02D2200/0812 , Y02T10/47 , Y02T10/54
摘要： Methods and systems are provided for detecting leaks in a diesel particulate filter (DPF). In one example, a faster leak detection routine may be performed during a single drive cycle to detect large leaks in the DPF. However, if there are no large leaks in the DPF, a slower leak detection may be performed over a plurality of drive cycles, to detected smaller leaks in the DPF.
摘要翻译： 提供了用于检测柴油微粒过滤器（DPF）中的泄漏的方法和系统。 在一个示例中，可以在单个驱动周期期间执行更快的泄漏检测程序以检测DPF中的大泄漏。 然而，如果DPF中没有大的泄漏，则可以在多个驱动循环中执行较慢的泄漏检测，以检测DPF中较小的泄漏。
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公开(公告)号：US09528419B2
公开(公告)日：2016-12-27
申请号：US13979730
申请日：2011-02-01
申请人： Keiichiro Aoki
发明人： Keiichiro Aoki
CPC分类号： F01N11/00 , F02D41/1466 , F02D41/1494 , F02D41/2441 , F02D41/2474
摘要： Disclosed is a method for correcting characteristic variation of a PM sensor and improving detection accuracy of the sensor. The PM sensor has a pair of electrodes for capturing the PM in an exhaust gas, and a sensor output changes in accordance with a captured amount of the PM. If the sensor output gets close to a saturated state, the PM combustion control for combusting and removing the PM is executed. If a zero-point output of the PM sensor is to be corrected, first, a sensor output at a point of time when predetermined time required for combustion of the PM has elapsed after electrical conduction to the heater is started by the PM combustion control is obtained. Then, the sensor output at an arbitrary point of time is corrected. As a result, correction of the sensor can be made smoothly by using existing PM combustion control.
摘要翻译： 公开了一种用于校正PM传感器的特性变化并提高传感器的检测精度的方法。 PM传感器具有用于捕获废气中的PM的一对电极，并且传感器输出根据PM的捕获量而变化。 如果传感器输出接近于饱和状态，则执行用于燃烧和去除PM的PM燃烧控制。 如果要校正PM传感器的零点输出，首先，通过PM燃烧控制开始通过加热器的导通之后经过了PM的燃烧所需的预定时间的时间点的传感器输出 获得。 然后，校正任意时间点的传感器输出。 结果，可以通过使用现有的PM燃烧控制来平稳地校正传感器。
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9.发明申请公开(公告)号：US20160326971A1
公开(公告)日：2016-11-10
申请号：US15214533
申请日：2016-07-20
发明人： Daniel R. Cohn , Leslie Bromberg
CPC分类号： F02D37/02 , F02B2075/125 , F02D13/0215 , F02D13/06 , F02D19/084 , F02D41/0007 , F02D41/0025 , F02D41/0027 , F02D41/047 , F02D41/064 , F02D41/10 , F02D41/1466 , F02D41/3094 , F02D41/345 , F02D41/3836 , F02D2041/001 , F02D2041/389 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1521 , Y02T10/123 , Y02T10/144 , Y02T10/36 , Y02T10/46
摘要： The present invention describes a fuel-management system for minimizing particulate emissions in turbocharged direct injection gasoline engines. The system optimizes the use of port fuel injection (PFI) in combination with direct injection (DI), particularly in cold start and other transient conditions. In the present invention, the use of these control systems together with other control systems for increasing the effectiveness of port fuel injector use and for reducing particulate emissions from turbocharged direct injection engines is described. Particular attention is given to reducing particulate emissions that occur during cold start and transient conditions since a substantial fraction of the particulate emissions during a drive cycle occur at these times. Further optimization of the fuel management system for these conditions is important for reducing drive cycle emissions.
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10.发明授权公开(公告)号：US09388759B2
公开(公告)日：2016-07-12
申请号：US14001668
申请日：2012-02-28
CPC分类号： F02D41/1467 , F02D35/021 , F02D35/023 , F02D41/005 , F02D41/1466 , F02D41/1497 , F02D41/30 , F02D41/40
摘要： A system and method is provided for the use of the ion current signal characteristics for onboard cycle-by-cycle, cylinder-by-cylinder measurement, for example soot measurement, load measurement such as indicated or brake mean effective pressure, or fuel consumption measurement in an internal combustion engine. The system may acquire an ion current signal, measures one or more of soot, load, fuel consumption and may control the engine operating parameters accordingly.
摘要翻译： 提供了一种用于使用离子电流信号特性的系统和方法，用于车载逐个循环，逐缸测量，例如烟灰测量，诸如指示或制动平均有效压力的负载测量或燃料消耗测量 在内燃机中。 系统可以获取离子电流信号，测量煤烟，负荷，燃料消耗中的一种或多种，并且可以相应地控制发动机工作参数。
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