61 |
内燃機関の制御装置 |
JP2014058324 |
2014-03-20 |
JP6259332B2 |
2018-01-10 |
篠▲崎▼ 祐也; 岡本 直樹; 清村 章 |
|
62 |
車両用駆動機構の制御装置及び制御方法 |
JP2015043516 |
2015-03-05 |
JP6258887B2 |
2018-01-10 |
岡本 直樹; 篠▲崎▼ 祐也 |
|
63 |
内燃機関の制御装置 |
JP2013123069 |
2013-06-11 |
JP6006178B2 |
2016-10-12 |
清水 博和 |
|
64 |
Engine control unit |
JP2011503635 |
2009-03-10 |
JP5083456B2 |
2012-11-28 |
秀幹 中園; 大輔 秋久 |
A hybrid type vehicle designed to use an engine and motor generators to drive the vehicle, wherein the engine is provided with a variable compression ratio mechanism and a variable valve timing mechanism. When the vehicle is backing up, one motor generator is used to generate an output for vehicle drive use. If the engine is made to operate at this time, the engine torque and the engine speed are made to change along a minimum fuel consumption rate operation line. |
65 |
Diesel engine for vehicle |
JP2010150151 |
2010-06-30 |
JP2012012998A |
2012-01-19 |
NAKAI EIJI; MATSUMOTO SADAHARU; SHIROHASHI HISATOSHI; MORINAGA SHINICHI |
PROBLEM TO BE SOLVED: To stabilize combustion in cylinders 11a within a low load region where a fuel injection amount is decreased in a diesel engine 1 for a vehicle.SOLUTION: An injection control means (PCM 10, injector 18) performs main injection and, at least once, pre-injection so as to cause pre-combustion having a peak heat release rate at a predetermined timing before the top dead center by the pre-injection. The injection control means also performs a cylinder-cutoff operation mode where fuel supply to some of a plurality of cylinders 11a is stopped when the engine body 1 is under a low load condition, where the fuel injection amount per cylinder is below a predetermined amount. |
66 |
Combustion control device of internal combustion engine |
JP2007082799 |
2007-03-27 |
JP2008240644A |
2008-10-09 |
KAKUHO AKIHIKO; SHINJO TAKASHI; ASHIDA KOICHI |
<P>PROBLEM TO BE SOLVED: To perform optimal combustion in response to an operation condition, by using a plurality of fuels different in an octane number. <P>SOLUTION: High octane number fuel is supplied from a fuel injection valve 11, and low octane number fuel is supplied from a fuel injection valve 12, and the high octane number fuel and the low octane number fuel are distributed in different parts (the central side and the peripheral side) in a combustion chamber 1. Ignition source fuel (the low octane number fuel) is discretely injected into the combustion chamber 1 from a fuel injection valve 13 in the vicinity of the compression top dead center, and an ignition starting position is controlled by making the injection timing different in response to the operation condition. In a low load, the high octane number fuel is ignited, and in a high load, the low octane number fuel is ignited. <P>COPYRIGHT: (C)2009,JPO&INPIT |
67 |
ROD FOR A VARIABLE COMPRESSION RATIO ENGINE |
US15776730 |
2016-11-17 |
US20180334956A1 |
2018-11-22 |
Philippe Dury; Yves Miehe |
A rod (1), the length of which is variable, is used for adjusting the compression ratio of an engine. The rod comprises a cylinder rigidly connected to a first end of the rod; a piston that is movable within the cylinder, and is rigidly connected to the second end of the rod, and defines, in the cylinder, a first hydraulic chamber referred to as the “high-pressure” hydraulic chamber, capable of transmitting compression forces, and a second hydraulic chamber referred to as the “low-pressure” hydraulic chamber, capable of transmitting tensile forces; at least one conduit calibrated to enable fluid to flow between the low-pressure chamber and the high-pressure chamber; and return means to bring the rod back to its nominal length, wherein the cross-sections of the low-pressure hydraulic chamber and the high-pressure hydraulic chamber are equal. |
68 |
APPARATUS AND METHOD FOR DIAGNOSING ENGINE HAVING VARIABLE COMPRESSION RATIO APPARATUS |
US15793777 |
2017-10-25 |
US20180306126A1 |
2018-10-25 |
Jae-Hyeok SONG |
An apparatus for diagnosing an engine including a variable compression ratio apparatus according to an exemplary embodiment of the present invention, may include a piston configured to reciprocally move in a cylinder of the engine, a detector configured to determine a position of the piston, a variable compression ratio apparatus configured to adjust a moving range of the piston, and a controller configured to determine whether the variable compression ratio apparatus is defective based on a position signal of the piston determined by the detector. |
69 |
INTERNAL COMBUSTION ENGINE |
US15945329 |
2018-04-04 |
US20180291777A1 |
2018-10-11 |
Yukihiro Nakasaka |
An internal combustion engine includes a turbocharger, a variable valve timing mechanism, a variable compression ratio mechanism, and an electronic control unit that controls the variable compression ratio mechanism such that the mechanical compression ratio becomes a target mechanical compression ratio and controls the variable valve timing mechanism such that the valve closing timing of the intake valve becomes a target valve closing timing. The electronic control unit brings the target valve closing timing close to an intake bottom dead center and make the target mechanical compression ratio low, compared to a steady state after the intake pressure reaches a target pressure, in a transient state before the intake pressure reaches the target pressure in a case where the intake pressure is increased to the target pressure higher than an atmospheric pressure by the turbocharger. |
70 |
METHOD AND SYSTEM FOR ENGINE CONTROL |
US15467957 |
2017-03-23 |
US20180274458A1 |
2018-09-27 |
Chris Paul Glugla |
Methods and systems are provided for indicating degradation of a VCR mechanism that mechanically alters a cylinder compression ratio. Degradation is detected based on an elevated knock incidence and increased spark retard usage. If the VCR mechanism is stuck, knock and pre-ignition that could be induced by continued operation in a higher than intended compression ratio is mitigated by limiting the engine load. |
71 |
CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE |
US15742099 |
2016-06-22 |
US20180195487A1 |
2018-07-12 |
Kazuhiro ORYOJI; Yoshihiko AKAGI |
It is an object of the present invention to provide a control device for an internal combustion engine capable of appropriately controlling compression ratio and ignition timing before the target compression ratio that is set according to humidity is attained. A control device for an internal combustion engine controls the internal combustion engine including a cylinder, humidity detection means for detecting humidity of outside air supplied to the cylinder, a variable compression ratio mechanism for changing a compression ratio of the cylinder, and an ignition device igniting air-fuel mixture in the cylinder, and the control device includes: a compression ratio control unit controlling the variable compression ratio mechanism; and an ignition control unit controlling ignition timing of the ignition device, wherein corresponding characteristics between compression ratio and ignition timing are determined for each humidity according to a predetermined condition of an operation state of the internal combustion engine, the compression ratio control unit determines a target compression ratio of the variable compression ratio mechanism according to the detected humidity, and while the variable compression ratio mechanism changes a compression ratio to the target compression ratio, the ignition control unit controls the ignition device on the basis of corresponding characteristics determined according to the detected humidity. |
72 |
Internal Combustion Engine |
US15570247 |
2015-04-03 |
US20180142618A1 |
2018-05-24 |
Katsutoshi Nakamura; Masayoshi Tsubokawa |
When a stopper portion is brought into abutment against body high-compression-ratio side stopper portion, when viewed in the control shaft axial direction, it is configured that the distance between body high-compression-ratio side stopper surface and control-shaft high-compression-ratio side stopper surface becomes relatively longer as being closer to the control shaft rotation center. Similarly, when a stopper portion is brought into abutment against body low-compression-ratio side stopper portion, when viewed in the control shaft axial direction, the distance between body low-compression-ratio side stopper surface and control-shaft, low-compression-ratio side stopper surface becomes relatively longer as being closer to the control shaft rotation center. |
73 |
COMPRESSION RATIO ADJUSTMENT APPARATUS FOR INTERNAL COMBUSTION ENGINE |
US15565235 |
2016-04-08 |
US20180106199A1 |
2018-04-19 |
Makoto NAKAMURA; Masahiro SHOJI |
An object of the present invention is to provide a variable mechanism apparatus for an internal combustion engine capable of preventing a crown surface of a piston and intake and exhaust valves from interfering with each other or sufficiently acquiring an internal EGR effect during an exhaust stroke when a piston position at a compression top dead center is raised to achieve a high mechanical compression ratio. The variable mechanism apparatus is configured to set a piston position at an intake (exhaust) top dead center to a lower position than the piston position at the compression top dead center by a variable compression ratio mechanism. According thereto, the variable mechanism apparatus can prevent the crown surface of the piston and the intake and exhaust valves from interfering with each other or sufficiently acquiring the internal EGR effect during the exhaust stroke by setting the piston position at the exhaust top dead center to the low position when the piston position at the compression top dead center is raised to achieve the high mechanical compression ratio. |
74 |
Device and method for controlling internal combustion engine for vehicle |
US15106499 |
2014-08-06 |
US09617926B2 |
2017-04-11 |
Eiji Takahashi |
In a vehicle with an automatic transmission, an internal combustion engine is provided with a variable compression ratio mechanism. A target compression ratio of the variable compression ratio mechanism is determined based on a demand load and an engine rotation speed with reference to a compression ratio map. A reverse-drive compression ratio map is selected when the automatic transmission is in a reverse drive position; a first compression ratio map is selected when an actual speed reduction ratio of the transmission is low; and a second compression ratio map is selected when the actual speed reduction ratio of the transmission is high. A variable control range of the compression ratio is narrower in the second compression ratio map than in the first compression ratio map and is narrower in the reverse-drive compression ratio map than in the first and second compression ratio maps. |
75 |
Method and device for controlling an internal combustion engine with a variable compression ratio |
US14762356 |
2014-01-21 |
US09599038B2 |
2017-03-21 |
Reza Azadeh |
In a method for operating an internal combustion engine a compression ratio is set to a setpoint compression ratio by means of an adjustment device, wherein in a normal operating mode of the internal combustion engine the setpoint compression ratio is determined as a function of an, operating variable of the internal combustion engine. The internal combustion engine is at least temporarily operated in a predictive operating mode in which the setpoint compression ratio is determined on the basis of an anticipated estimated operating variable which is estimated on the basis of the instantaneous gradient of the operating variable over time. |
76 |
Apparatus for detecting abnormal combustion in a combustion engine |
US14421306 |
2013-11-13 |
US09512788B2 |
2016-12-06 |
Hiroyuki Tanaka |
A spark ignition internal combustion engine includes: a compression ratio changing mechanism by which a volume of a combustion chamber varies; a cylinder internal pressure sensor that acquires a pressure signal of a pressure vibration inside a cylinder; and an abnormal combustion detector including a filter that passes the pressure signal, of a set frequency band among the pressure signal, and detecting an occurrence of abnormal combustion based on the pressure signal having passed through the filter. The abnormal combustion detector sets a frequency band of the filter based on a crank angle section in which abnormal combustion occurs and on a mechanical compression ratio. |
77 |
DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE FOR VEHICLE |
US15106499 |
2014-08-06 |
US20160333804A1 |
2016-11-17 |
Eiji TAKAHASHI |
In a vehicle with an automatic transmission, an internal combustion engine is provided with a variable compression ratio mechanism. A target compression ratio of the variable compression ratio mechanism is determined based on a demand load and an engine rotation speed with reference to a compression ratio map. A reverse-drive compression ratio map is selected when the automatic transmission is in a reverse drive position; a first compression ratio map is selected when an actual speed reduction ratio of the transmission is low; and a second compression ratio map is selected when the actual speed reduction ratio of the transmission is high. A variable control range of the compression ratio is narrower in the second compression ratio map than in the first compression ratio map and is narrower in the reverse-drive compression ratio map than in the first and second compression ratio maps. |
78 |
Variable compression ratio engine |
US14067492 |
2013-10-30 |
US09303558B2 |
2016-04-05 |
Scott Blackstock |
A system and method for providing a variable compression ratio internal combustion engine is disclosed. The system can include a frame affixed to the engine crankcase and a complementary frame affixed to the block/cylinder head assembly. The system can further comprise an actuating system to enable the block/head assembly to be moved up and down with respect to the crankcase, varying the compression ratio of the engine. A number of mechanisms can be used to achieve this movement, including a rack and pinion, a hydraulic or pneumatic actuator, and a gear drive. The compression ratio can be varied continuously during use. The frames substantially limit movement of the engine components to the y-axis, thus reducing, or eliminating, unwanted movement and stresses in other directions. |
79 |
METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE WITH A VARIABLE COMPRESSION RATIO |
US14762356 |
2014-01-21 |
US20150354469A1 |
2015-12-10 |
REZA AZADEH |
In a method for operating an internal combustion engine a compression ratio is set to a setpoint compression ratio by means of an adjustment device, wherein in a normal operating mode of the internal combustion engine the setpoint compression ratio is determined as a function of an, operating variable of the internal combustion engine. The internal combustion engine is at least temporarily operated in a predictive operating mode in which the setpoint compression ratio is determined on the basis of an anticipated estimated operating variable which is estimated on the basis of the instantaneous gradient of the operating variable over time. |
80 |
INTERNAL COMBUSTION ENGINE PROVIDED WITH VARIABLE COMPRESSION RATIO MECHANISM |
US14434027 |
2012-10-09 |
US20150260113A1 |
2015-09-17 |
Hiroyuki Tanaka |
This internal combustion engine provided with a variable compression ratio mechanism is equipped with a turbocharger, the opening degree of a wastegate valve is controlled to a target opening degree for each engine operating state, and when the mechanical compression ratio is changed, the target opening degree of the wastegate valve for the current engine operating state is revised. |