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公开(公告)号：US20180038297A1
公开(公告)日：2018-02-08
申请号：US15665699
申请日：2017-08-01
发明人： Keisuke SASAKI , Akira EIRAKU , Masanori HATTORI , Yoshiyuki KAGEURA , Teppei YOSHIOKA , Shinichi HIRAOKA
CPC分类号： F02D41/0085 , F02D15/02 , F02D35/023 , F02D35/028 , F02D41/008 , F02D41/047 , F02D41/3064 , F02D41/3094 , F02D2041/389
摘要： A control system is applied to an internal combustion engine having a plurality of cylinders, a variable compression ratio changer configured to change the compression ratio of each of the cylinders of the internal combustion engine individually, in-cylinder injection valves that inject fuel into the respective cylinders, and in-passage injection valves each of which injects fuel into an intake passage corresponding to each of the cylinders. To reduce differences in the air-fuel ratio among the cylinders during changing the compression ratio, the control system makes the proportion of the quantity of fuel injected through the in-passage injection valves to the total quantity of fuel injected through the in-cylinder injection valves and the in-passage injection valves larger during the time in which the compression ratios of all the cylinders are being changed than during the time in which the compression ratios of all the cylinders are fixed.
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公开(公告)号：US09885304B2
公开(公告)日：2018-02-06
申请号：US15519902
申请日：2014-12-02
发明人： Tomoyoshi Date , Futoshi Yoshimura , Ryo Uchida , Rina Kamio
CPC分类号： F02D41/126 , F02D29/02 , F02D35/026 , F02D41/02 , F02D41/025 , F02D41/0295 , F02D41/04 , F02D41/047 , F02D41/12 , F02D41/38 , F02D43/00 , F02D45/00 , F02D2041/389 , F02D2200/021 , F02P5/145 , F02P5/15 , F02P5/1504 , Y02T10/26
摘要： A vehicle control system for an internal combustion engine having a fuel injection valve for injecting fuel directly into a combustion chamber includes a controller configured to perform a fuel cut-off when a predetermined fuel cut-off condition is met during travel of the vehicle to thereby stop fuel injection from the fuel injection valve. The controller is configured to resume the fuel injection from the fuel injection valve when a predetermined fuel cut-off recovery condition is met during the fuel cut-off. The controller is configured, upon elapse of a predetermined time that is required for a wall temperature of the combustion chamber to rise after resuming the fuel injection from the fuel injection valve, to perform a rich spike that temporarily increases the fuel injection amount from the fuel injection valve.
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13.发明申请公开(公告)号：US20170370313A1
公开(公告)日：2017-12-28
申请号：US15608537
申请日：2017-05-30
发明人： Masanao IDOGAWA
CPC分类号： F02D41/0295 , F01N11/007 , F02D41/0052 , F02D41/047 , F02D41/1482 , F02D41/1483 , F02D41/2461 , F02D41/34 , F02D2200/021 , F02D2200/0614 , Y02T10/44
摘要： An air-fuel ratio controller of an internal combustion engine includes an open-loop processor setting a base injection amount, a feedback processor calculating a feedback operation amount, an increase processor performing an increase correction on the base injection amount when a temperature of the internal combustion engine is a specified temperature or lower, an operation processor operating a fuel injection valve based on the corrected base injection amount and that is corrected using the feedback operation amount and a learning value, and an update processor updating the learning value. If the increase processor performs the increase correction, the update processor updates the learning value to increase an increase correction rate of the base injection amount when a temperature of the cylinder wall surface is high.
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公开(公告)号：US20170363035A1
公开(公告)日：2017-12-21
申请号：US15691895
申请日：2017-08-31
发明人： Daniel R. Cohn , Leslie Bromberg
IPC分类号： F02D41/30 , F02D35/02 , F02D37/02 , F02D41/00 , F02M69/04 , F02D41/04 , F02P5/152 , F02P5/15 , F02D41/06 , F02D13/02 , F02P5/145
CPC分类号： F02D41/3094 , F02D13/0215 , F02D13/0242 , F02D35/027 , F02D37/02 , F02D41/0002 , F02D41/047 , F02D41/064 , F02D41/3023 , F02D2013/0292 , F02D2041/001 , F02D2250/38 , F02M69/046 , F02P5/145 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/46
摘要： Additional approaches for the reduction of particulate emissions in gasoline engines using optimized port+direct injection are described. These embodiments include control of the amount of directly injected fuel so as to avoid a threshold increase in particulates due to piston wetting and reduction of cold start emissions by use of air preheating using variable valve timing.
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公开(公告)号：US20170350342A1
公开(公告)日：2017-12-07
申请号：US15534909
申请日：2014-12-09
发明人： Ryo Uchida , Futoshi Yoshimura , Tomoyoshi Date , Rina Kamio
CPC分类号： F02D41/40 , F02B75/045 , F02D15/02 , F02D29/02 , F02D35/025 , F02D41/0295 , F02D41/047 , F02D41/126
摘要： A control device for an internal combustion engine has a controller configured to control a fuel injection valve arranged to directly inject a fuel into a combustion chamber, and a variable compression ratio mechanism arranged to vary an upper dead center position of a piston, and thereby to vary a compression ratio of the internal combustion engine. The controller is configured to control a fuel cut by which the fuel injection from the fuel injection valve is stopped, when a predetermined fuel cut condition is satisfied during a traveling of a vehicle. The fuel injection from the fuel injection valve is restarted when a predetermined fuel cut recovery condition is satisfied during the fuel cut.
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公开(公告)号：US20170350337A1
公开(公告)日：2017-12-07
申请号：US15519902
申请日：2014-12-02
发明人： Tomoyoshi Date , Futoshi Yoshimura , Ryo Uchida , Rina Kamio
CPC分类号： F02D41/126 , F02D29/02 , F02D35/026 , F02D41/02 , F02D41/025 , F02D41/0295 , F02D41/04 , F02D41/047 , F02D41/12 , F02D41/38 , F02D43/00 , F02D45/00 , F02D2041/389 , F02D2200/021 , F02P5/145 , F02P5/15 , F02P5/1504 , Y02T10/26
摘要： A vehicle control system for an internal combustion engine having a fuel injection valve for injecting fuel directly into a combustion chamber includes a controller configured to perform a fuel cut-off when a predetermined fuel cut-off condition is met during travel of the vehicle to thereby stop fuel injection from the fuel injection valve. The controller is configured to resume the fuel injection from the fuel injection valve when a predetermined fuel cut-off recovery condition is met during the fuel cut-off. The controller is configured, upon elapse of a predetermined time that is required for a wall temperature of the combustion chamber to rise after resuming the fuel injection from the fuel injection valve, to perform a rich spike that temporarily increases the fuel injection amount from the fuel injection valve.
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17.发明申请公开(公告)号：US20170342944A1
公开(公告)日：2017-11-30
申请号：US15681502
申请日：2017-08-21
申请人： HUSQVARNA AB
发明人： Mikael Larsson , Magnus Ottosson , Bo Carlsson
CPC分类号： F02M1/08 , F02D41/047 , F02D41/065 , F02D2400/02 , F02D2400/04 , F02D2400/06 , F02M1/10 , F02M17/04 , F02M19/0235 , F02N3/02
摘要： The invention concerns a method for controlling the fuel supply to an internal combustion engine at start-up. The fuel supply system can be set in at least two start modes, a lean mode and a rich mode, and the selection of mode is based on an evaluation of a previous start attempt or successful run. The invention also concerns a carburettor (10) having a fuel supply system including a main fuel path (13) with an actively controlled fuel valve (26) and an idling fuel path (14) branching off from the main fuel path (13) downstream of the valve (26). The fuel supply system further includes a start fuel line (23, 423) starting upstream (FIG. 1) or downstream (FIG. 4) of the fuel valve (26) and ending in at least one start fuel outlet near and downstream of a choke valve.
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公开(公告)号：US20170314500A1
公开(公告)日：2017-11-02
申请号：US15520200
申请日：2015-09-16
发明人： Kenichiroh OGATA , Takashi OKAMOTO , Yoshinobu ARIHARA , Kazuhiro ORYOJI , Yoshihiro SUKEGAWA , Yuusuke KIHARA
CPC分类号： F02D41/402 , F02D13/0219 , F02D13/0261 , F02D35/021 , F02D35/023 , F02D35/027 , F02D41/005 , F02D41/006 , F02D41/0072 , F02D41/0077 , F02D41/009 , F02D41/0225 , F02D41/047 , F02D41/18 , F02D41/40 , F02D2041/001 , F02D2041/288 , F02D2200/021 , F02D2200/023 , F02D2200/0414 , F02D2200/101 , F02D2200/501 , F02D2200/602 , F02M26/00 , F02M26/14 , F02M26/46 , F02P5/1506 , F02P5/152 , Y02T10/18 , Y02T10/44 , Y02T10/47
摘要： The purpose of the present invention is to provide an engine control device with which it is possible to minimize decreases in combustion speed even when the EGR rate has been increased. The present invention is an engine control device for: controlling an engine provided with an injector for injecting fuel directly into a cylinder, an ignition device for igniting the injected fuel, and an EGR means capable of recycling combustion gas and varying the EGR rate of the recycling combustion gas; and commanding the injector to perform multiple injections during one cycle, wherein a command is given to perform a control for increasing the injection quantity per compression stroke relative to the total injection quantity in one cycle so that the injection quantity per compression stroke is greater when the EGR rate is high than when the EGR rate is low, and/or a control for increasing the number of injections per compression stroke relative to the total number of injections in one cycle so that the number of injections per compression stroke is greater when the EGR rate is high than when the EGR rate is low.
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公开(公告)号：US20170167429A1
公开(公告)日：2017-06-15
申请号：US15259824
申请日：2016-09-08
发明人： Young Kyu OH
IPC分类号： F02D41/36
CPC分类号： F02D41/365 , F02D41/047 , F02D41/3094 , F02D41/345 , F02D2041/0015 , F02M69/044 , Y02T10/44
摘要： A control method for a vehicle injector includes an injection time determination step in which a controller determines whether it is necessary for multiple injectors to inject fuel according to a combustion cycle of a combustion chamber, an individual injection step in which the controller controls each of the multiple injectors to individually inject fuel at different times when the controller determines in the injection time determination step that it is necessary for the injectors to inject fuel, and a simultaneous injection step in which the controller controls each of the multiple injectors to simultaneously inject fuel after the multiple injectors individually inject fuel at different times in the individual injection step.
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公开(公告)号：US09663096B2
公开(公告)日：2017-05-30
申请号：US14627909
申请日：2015-02-20
CPC分类号： F02D41/22 , B60W10/06 , B60W10/11 , F02D41/008 , F02D41/047 , F02D41/1441 , F02D41/221 , F02D41/38 , F02D41/3845 , F02D41/40 , F02D2041/225 , F02D2041/226 , F02M65/00 , F02M65/006 , Y02T10/44
摘要： Methods and systems are provided for performing mitigating actions in response to detecting a fuel injector leak. In one example, a method may include in response to detecting a fuel injector leak, performing first high pressure mitigating actions including increasing a fuel rail pressure, increasing a pulse width delivered to the leaking fuel injector, and commanding fuel injection during compression stroke; in response to the first mitigating actions not reducing the leak below a threshold rate, performing second high pressure mitigating actions including increasing the fuel rail pressure, increasing the pulse width delivered to the leaking injector, and commanding fuel injection during intake stroke for a cylinder receiving fuel from the leaking injector; and in response to the second mitigating actions not reducing the leak below the threshold rate, reducing the fuel rail pressure, and commanding intake stroke fuel injection to all cylinders.
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