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公开(公告)号：US20180163645A1
公开(公告)日：2018-06-14
申请号：US15893619
申请日：2018-02-10
CPC分类号： F02D13/0219 , F01L1/344 , F01L2800/00 , F01L2800/14 , F01L2820/02 , F02D41/0002 , F02D41/009 , F02D41/1402 , F02D2041/001 , F02D2041/1412 , F02D2041/1422 , F02D2041/1432 , Y02T10/18 , Y02T10/42
摘要： A method for predicting a future camshaft position includes approximating a regulating circuit or a part of a regulating circuit that includes at least an adjusting device by a transfer function, and ascertaining a future camshaft position on the basis of the transfer function. An engine control unit is also provided.
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公开(公告)号：US20180051643A1
公开(公告)日：2018-02-22
申请号：US15557894
申请日：2016-02-12
申请人： Robert Bosch GmbH
CPC分类号： F02D41/20 , F02D41/2467 , F02D41/401 , F02D2041/1422 , F02D2041/202 , F02D2041/2055 , F02D2041/2058 , F02D2200/0618 , Y02T10/44
摘要： A method is described for controlling the metering of fuel. A feature, which characterizes the switching point in time of a valve, is ascertained based on a measured signal curve. The feature is fed as an actual variable to a controller. A criterion of the feature is ascertained, the controller taking the criterion of the feature into account.
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3.发明申请公开(公告)号：US20170363028A1
公开(公告)日：2017-12-21
申请号：US15605954
申请日：2017-05-26
发明人： Mitsuhiro IWADARE
CPC分类号： F02D41/1444 , F02B31/06 , F02D35/023 , F02D35/028 , F02D41/0072 , F02D41/1454 , F02D41/1475 , F02D41/401 , F02D2041/0015 , F02D2041/1422 , F02D2200/0602 , F02P5/153 , Y02T10/146 , Y02T10/46
摘要： A controller for an internal combustion engine includes a detector and a processor. The detector detects a combustion condition of a gas in a cylinder of the internal combustion engine. The processor is configured to calculate a target combustion condition. The processor is configured to calculate an ignition timing such that the combustion condition detected by the detector becomes equal to the target combustion condition via a feedback control with a gain. The processor is configured to calculate a fuel ratio in the gas in the cylinder. The processor is configured to determine the gain so as to increase as the fuel ratio decreases.
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公开(公告)号：US09845758B2
公开(公告)日：2017-12-19
申请号：US15149328
申请日：2016-05-09
CPC分类号： F02D41/2454 , F02D41/1454 , F02D41/1455 , F02D41/1458 , F02D41/1479 , F02D41/148 , F02D41/1482 , F02D41/1483 , F02D41/1495 , F02D2041/1422
摘要： An air-fuel ratio region detection unit, including a first determination voltage higher than a target voltage value indicating the stoichiometric air-fuel ratio, and a second determination voltage lower than the target voltage value, determines that an air-fuel ratio of an engine is within a first rich region when an oxygen sensor output equals or exceeds the first determination voltage, determines that the air-fuel ratio is within a second rich region when the oxygen sensor output equals or exceeds the target voltage value but is lower than the first determination voltage, determines that the air-fuel ratio is within a second lean region when the oxygen sensor output equals or exceeds the second determination voltage but is lower than the target voltage value, and determines that the air-fuel ratio is within a first lean region when the oxygen sensor output is lower than the second determination voltage.
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公开(公告)号：US09803581B2
公开(公告)日：2017-10-31
申请号：US14328087
申请日：2014-07-10
申请人： Yanmar Co., Ltd.
发明人： Hironori Yamane , Masahiro Koura , Hiroshi Sueto
CPC分类号： F02D41/405 , F01N2430/085 , F01N2560/06 , F01N2560/08 , F01N2560/14 , F01N2900/12 , F01N2900/1602 , F02D41/025 , F02D41/029 , F02D41/1446 , F02D41/1448 , F02D2041/1422 , F02D2041/1432 , F02D2200/0414 , F02D2200/70 , Y02T10/44
摘要： Provided is an exhaust gas purifying apparatus capable of making a filter entrance temperature reach a target temperature while suppressing excessive temperature increases and release of THC even upon extension of the exhaust path or decreases in outside air temperature. The exhaust gas purifying apparatus includes an oxidation catalyst 18 and a filter 19 that are placed in an exhaust path 5 of an engine 1, a fuel injection device 13 for injecting fuel in accordance with a fuel injection pattern, and a control device 50 configured to be capable of setting the fuel injection pattern including post-injection, wherein an upper-limit value of post-injection quantity increases with decreasing outside air temperature and/or with elongating path length of the exhaust path 5.
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公开(公告)号：US20170298883A1
公开(公告)日：2017-10-19
申请号：US15097644
申请日：2016-04-13
CPC分类号： F02M59/368 , F02D41/1401 , F02D41/3845 , F02D2041/1412 , F02D2041/1422 , F02D2041/224 , F02D2041/228 , F02M59/366 , F02M59/367 , F02M59/464 , F02M59/466
摘要： An engine fuel delivery system includes a fuel pump having a pumping chamber to increase fuel pressure and a closeable inlet valve, and a fuel rail to communicate pressurized fuel received from the fuel pump to at least one engine cylinder. The engine fuel delivery system also includes a controller programmed to issue a control signal to periodically close the inlet valve to generate a setpoint fuel pressure within the pumping chamber. The controller is also programmed to adjust a control signal gain value in response to deviation in an outlet fuel pressure relative to the setpoint fuel pressure. The controller is further programmed to issue a warning message in response to the control signal gain being adjusted by more than a predetermined threshold from a calibrated gain value.
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公开(公告)号：US09777657B2
公开(公告)日：2017-10-03
申请号：US14573554
申请日：2014-12-17
CPC分类号： F02D41/1401 , F02D41/0007 , F02D41/005 , F02D41/1402 , F02D41/1406 , F02D2041/1409 , F02D2041/141 , F02D2041/1422 , F02D2041/1427 , F02D2041/1434 , Y02T10/144 , Y02T10/47
摘要： An internal combustion engine includes an air charging system. A method to control the air charging system includes providing a desired operating target command for the air charging system, and monitoring operating parameters of the air charging system. An error between the desired operating target command for the air charging system and the corresponding one of said operating parameters of the air charging system is determined, and scheduled PID gains are determined based on the error utilizing a PID controller. An adaptive algorithm is applied to modify the scheduled PID gains, and a system control command for the air charging system is determined based upon the modified scheduled PID gains. The air charging system is controlled based upon the system control command for the air charging system.
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公开(公告)号：US20170268454A1
公开(公告)日：2017-09-21
申请号：US15456728
申请日：2017-03-13
发明人： Tatsuya Fujii , Takeshi Genko , Seiji Hino
CPC分类号： F02D41/40 , F02D41/3082 , F02D41/3094 , F02D41/3845 , F02D2041/1422 , F02D2041/1432 , F02D2041/3881 , F02D2041/389 , F02D2200/0602 , Y02T10/44
摘要： A smoothing coefficient is set value such that a value of smoothing coefficient when the fuel pressure difference is larger than the threshold value is larger than a value of smoothing coefficient when a fuel pressure difference between a target fuel pressure and a detected fuel pressure is equal to or smaller than a threshold value. A smoothened fuel pressure is calculated by performing fuel pressure smoothing processing on the detected fuel pressure, using the smoothing coefficient. An in-cylinder injection valve is controlled such that fuel is injected during a target fuel injection duration according to the smoothened fuel pressure from the in-cylinder injection valve.
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公开(公告)号：US09670810B2
公开(公告)日：2017-06-06
申请号：US14781715
申请日：2014-03-05
申请人： ISUZU MOTORS LIMITED
发明人： Takayuki Sakamoto , Daiji Nagaoka
CPC分类号： F01N3/0885 , F01N3/0842 , F01N3/106 , F01N9/002 , F01N2570/14 , F02D41/0002 , F02D41/028 , F02D41/029 , F02D41/1475 , F02D41/1482 , F02D41/18 , F02D2041/1422 , F02D2250/21 , Y02T10/42
摘要： An exhaust gas purification system which can suppress a decrease in engine torque during a desulfurization process applied to a NOx storage reduction catalyst. The system includes a NOx storage reduction catalyst in an exhaust pipe of an engine, and a desulfurization process control unit that controls an amount of intake air introduced to the engine to enrich the exhaust gas, and performs a desulfurization process to the NOx storage reduction catalyst. The desulfurization process control unit is configured to gradually reduce an amount of intake air when the desulfurization process is commenced.
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公开(公告)号：US20170152807A1
公开(公告)日：2017-06-01
申请号：US15149328
申请日：2016-05-09
CPC分类号： F02D41/2454 , F02D41/1454 , F02D41/1455 , F02D41/1458 , F02D41/1479 , F02D41/148 , F02D41/1482 , F02D41/1483 , F02D41/1495 , F02D2041/1422
摘要： An air-fuel ratio region detection unit, including a first determination voltage higher than a target voltage value indicating the stoichiometric air-fuel ratio, and a second determination voltage lower than the target voltage value, determines that an air-fuel ratio of an engine is within a first rich region when an oxygen sensor output equals or exceeds the first determination voltage, determines that the air-fuel ratio is within a second rich region when the oxygen sensor output equals or exceeds the target voltage value but is lower than the first determination voltage, determines that the air-fuel ratio is within a second lean region when the oxygen sensor output equals or exceeds the second determination voltage but is lower than the target voltage value, and determines that the air-fuel ratio is within a first lean region when the oxygen sensor output is lower than the second determination voltage.
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