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1. 发明专利

JP2004068810A Fuel system diagnostic device of internal combustion engine 有权
公开(公告)号：JP2004068810A
公开(公告)日：2004-03-04
申请号：JP2003134554
申请日：2003-05-13
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI , YAMAMOTO NAOKI
IPC分类号： F02D45/00 , F02D41/14 , F02D41/22 , F02D41/38 , F02M63/02
CPC分类号： F02D41/3845 , F02D41/221 , F02D2041/224 , F02D2041/389 , F02D2200/0602 , F02D2250/18 , F02D2250/31 , F02M63/0225
摘要： PROBLEM TO BE SOLVED: To diagnose the anomaly of fuel system in high accuracy which executes variable control for fuel discharging rate of a fuel pump and feedback control for fuel discharging pressure simultaneously in accordance with required fuel injecting rate of a fuel injection valve.
SOLUTION: After starting fuel pressure feedback control, the diagnosis process comprises the steps of executing a primary diagnosis based on the fuel injecting rate and the fuel discharging rate (S1, S2), transferring a secondary diagnosis based on fuel pressure when a primary diagnostic result is judged at NG or the fuel discharging rate is judged to reach minimum value or maximum value (S3 to S6), and making a secondary diagnostic result be judged at NG (S9) when a state in which a deviation between target fuel pressure and actual fuel pressure is a specific value of ΔP or more lasts during a specific time of T or more (S7, S8).
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2010084683A Alcohol concentration estimating device for engine and control device for the engine 有权
标题翻译：用于发动机的发动机和控制装置的酒精浓度估算装置
公开(公告)号：JP2010084683A
公开(公告)日：2010-04-15
申请号：JP2008256130
申请日：2008-10-01
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： TAKAHASHI HIDEAKI , SEMII KAZUKUNI
IPC分类号： F02D45/00 , F02D19/08 , F02D41/06 , F02D41/14 , F02D43/00
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To provide an alcohol concentration estimating device for an engine, suitable for accurately estimating the alcohol concentration without deteriorating operating performance and a control device for the engine.
SOLUTION: This alcohol concentration estimating device includes a fuel supply means for controlling a fuel injection amount so that an actual air-fuel ratio detected during retard combustion becomes a target air-fuel ratio and supplying the fuel to the engine 1 (S28-S31), an ignition timing control means for controlling the ignition timing so that during retard combustion, the engine rotational speed becomes a target rotational speed (S12-S15), and an alcohol concentration calculating means for calculating the alcohol concentration of fuel being used based on an ignition timing when the actual air-fuel ratio matches the target air-fuel ratio, and the engine rotational speed is stabilized and becomes the target rotational speed (S34).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于发动机的酒精浓度估计装置，适合于精确地估计酒精浓度而不降低操作性能，以及用于发动机的控制装置。解决方案：该酒精浓度估计装置包括：燃料供给装置，用于控制燃料喷射量，使得在延迟燃烧期间检测到的实际空燃比成为目标空燃比并向发动机1供应燃料（S28 -S31），点火正时控制装置，用于控制点火正时，使得在延迟燃烧期间发动机转速成为目标转速（S12-S15）;以及酒精浓度计算装置，用于计算所使用的燃料的醇浓度基于实际空燃比与目标空燃比一致的点火正时，并且发动机转速稳定并成为目标转速（S34）。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2009209790A Fuel supply device of engine 有权
标题翻译：发动机燃油供应装置
公开(公告)号：JP2009209790A
公开(公告)日：2009-09-17
申请号：JP2008053863
申请日：2008-03-04
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MORI TOMOYA , SEMII KAZUKUNI
IPC分类号： F02D41/06 , F02D41/38 , F02D45/00 , F02M47/00
CPC分类号： F02D41/062 , F02D41/3809 , F02D2200/0604
摘要： PROBLEM TO BE SOLVED: To execute stable stratified charge combustion on starting an engine. SOLUTION: In the direct injection four-cylinder engine, on starting the engine, the fuel supply device determines whether a rise timing of an REF signal of this time is of a second cylinder or a third cylinder by a S11. If the rise timing is of the second cylinder or the third cylinder, it is determined that a fuel pressure will rise from a rise timing of the REF signal by a fuel injection timing, this fuel pressure rise quantity ΔP is calculated by an S12 and then an S13 is executed. On the other hand, if the REF signal in the S11 is of a first cylinder or a fourth cylinder, ΔP=0 is set in the S22 and the S13 is executed. In the S13, a fuel pressure lowering quantity Δpl owing to fuel leakage in a high pressure fuel pump is calculated. In a following step S14, correction of subtracting the Δpl from sum of an actual fuel pressure Pr at the rising timing of the REF signal and the ΔP is preformed to calculate a fuel pressure estimation value P est at a fuel injection timing. Then, when the P est exceeds an injection allowable fuel pressure, a compression stroke injection is allowed. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：在起动发动机时执行稳定的分层充气燃烧。解决方案：在直喷四缸发动机中，在启动发动机时，燃料供应装置通过S11确定此时的REF信号的上升时间是否为第二气缸或第三气缸。如果上升时刻为第二气缸或第三气缸，则判定燃料压力将从REF信号的上升时刻通过燃料喷射正时升高，该燃料压力上升量ΔP由S12计算然后执行S13。另一方面，如果S11中的REF信号是第一气缸或第四气缸，则在S22中设定ΔP= 0，执行S13。在S13中，计算由于高压燃料泵中的燃料泄漏引起的燃料压力下降量Δpl。在接下来的步骤S14中，执行在REF信号的上升定时与ΔP之间的实际燃料压力Pr之和减去Δpl的校正，以计算出在A 1的燃料压力估计值P est 燃油喷射正时。然后，当P est 超过喷射允许燃料压力时，允许压缩冲程喷射。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2006316656A Fuel supply device for multiple cylinder engine 有权
标题翻译：多缸发动机燃油供应装置
公开(公告)号：JP2006316656A
公开(公告)日：2006-11-24
申请号：JP2005138366
申请日：2005-05-11
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI
IPC分类号： F02D41/36 , F02D41/34 , F02M51/00 , F02M51/02
摘要： PROBLEM TO BE SOLVED: To provide a device keeping fuel injection pulse width actually given to a fuel injection valve not less than minimum injection pulse width per one cylinder even if operated value of fuel injection pulse width given to the fuel injection valve gets less than the minimum injection pulse width per one cylinder. SOLUTION: A fuel supply device for multiple cylinder engine provided with a high pressure fuel pump 11 driven by an actuator 12 and delivering high pressure fuel, and fuel injection valves 31A-31D supplying high pressure fuel from the high pressure fuel pump to the engine at predetermined fuel injection timing with an interval of predetermined fuel injection pulse width, is provided with a means 41 operating fuel injection pulse width given to the fuel injection valves 31A-31D, a means 41 making fuel injection of part of cylinders pause when the operated fuel injection pulse width is less then the minimum injection pulse width per one cylinder, and a means 41 increasing fuel injection pulse width of the injection cylinder when the operated fuel injection pulse is less than the minimum injection pulse width per one cylinder. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供实际给予不低于每个气缸的最小喷射脉冲宽度的燃料喷射阀的燃料喷射脉冲宽度的装置，即使给予燃料喷射阀的燃料喷射脉冲宽度的操作值获得小于每个气缸的最小喷射脉冲宽度。解决方案：一种用于多缸发动机的燃料供应装置，其具有由致动器12驱动并输送高压燃料的高压燃料泵11以及从高压燃料泵向高压燃料泵供给高压燃料的燃料喷射阀31A-31D 具有预定燃料喷射脉冲间隔的预定燃料喷射正时的发动机设置有操作燃料喷射阀31A-31D的燃料喷射脉冲宽度的装置41，使得部分气缸燃料喷射暂停的装置41 所操作的燃料喷射脉冲宽度小于每个气缸的最小喷射脉冲宽度，以及当所操作的燃料喷射脉冲小于每个气缸的最小喷射脉冲宽度时增加喷射气缸的燃料喷射脉冲宽度的装置41。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2011021570A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2011021570A
公开(公告)日：2011-02-03
申请号：JP2009168843
申请日：2009-07-17
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI , MOTO TOMOYUKI
IPC分类号： F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To secure combustion stability by reducing unburned HC emission during start of an engine.
SOLUTION: This control device includes a variable valve train 44 capable of variably controlling valve timing of exhaust valves 41 and a valve timing control means 55 controlling the variable valve train 44 according to an operation state. The valve timing control means 55 executes start control retarding exhaust valve close timing at timing of initial explosion during start of the engine than that during normal operation after warming up to give priority to in-cylinder oxidation of unburned HC due to shutting in combustion gas, and then advancing exhaust valve close timing according to increase of residual gas due to start of combustion.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：通过在发动机启动期间减少未燃烧的HC排放来确保燃烧稳定性。解决方案：该控制装置包括能够根据操作状态可变地控制排气门41的气门正时的可变气门机构44和控制可变气门机构44的气门正时控制装置55。气门正时控制装置55在发动机启动期间的初始爆炸正时在执行预热之后的正常操作期间执行启动控制延迟排气门关闭正时，从而优先关闭燃烧气体对未燃HC的缸内氧化，然后根据由燃烧开始引起的残余气体的增加而推进排气门关闭正时。版权所有（C）2011，JPO＆INPIT

6. 发明专利

JP2006299947A Fuel supply device for engine 审中-公开
标题翻译：发动机燃油供应装置
公开(公告)号：JP2006299947A
公开(公告)日：2006-11-02
申请号：JP2005123355
申请日：2005-04-21
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI
IPC分类号： F02M59/10 , F02D41/02 , F02D41/32 , F02M59/20 , F02M59/42
摘要： PROBLEM TO BE SOLVED: To provide a device capable of quickly raising common rail fuel pressure at a time of engine start with providing a motor generator as a motor on an output side of the engine without connecting to a crank shaft.
SOLUTION: In a fuel supply device for an engine provided with an actuator 12 driven by the crankshaft, a high pressure fuel pump 14 of which delivery stroke gets earlier as phase of the actuator 12 gets earlier, and fuel injection valves 31A-31D supplying high pressure fuel from the high pressure fuel pump 14 to the engine, an actuator phase advancing means 35, 41 keeping the crankshaft as it is and advancing phase of only the actuator 12 with synchronizing with operation of a starter motor at a time of engine start is provided.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在发动机起动时快速提高共轨燃料压力的装置，在发动机的输出侧设置作为电动机的电动发电机而不连接到曲轴。解决方案：在具有由曲轴驱动的致动器12的发动机的燃料供给装置中，随着致动器12的相位的输送行程变早的高压燃料泵14变得更早，燃料喷射阀31A- 31D，将来自高压燃料泵14的高压燃料供给到发动机，致动器相位推进装置35,41保持曲轴，并且与起动电动机的运行同步地仅使致动器12的相位前进提供发动机启动。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2006022677A Fuel system control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的燃油系统控制装置
公开(公告)号：JP2006022677A
公开(公告)日：2006-01-26
申请号：JP2004199798
申请日：2004-07-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI
IPC分类号： F02M55/00 , F02M55/02 , F02M59/02 , F02M59/46
摘要： PROBLEM TO BE SOLVED: To discharge air mixed in a fuel supply system after repair in failure. SOLUTION: Fuel pressure in a fuel gallery 13 is detected by a fuel pressure sensor 21 when restarted after repair due to engine failure. If fuel pressure is less than a predetermined value, it is determined that air is mixed by detachment of a fuel supply system part in repair and air is discharged from a fuel pressure relief valve 16 until fuel pressure gets to a predetermined value or higher by driving a fuel pump 5 while the fuel pressure relief valve 16 is intermittently opened. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：在故障修复后排出混合在燃料供应系统中的空气。解决方案：燃油箱13中的燃料压力由于发动机故障而在修理之后由燃料压力传感器21检测。如果燃料压力小于预定值，则通过拆卸燃料供给系统部件来确定空气被混合，并且从燃料压力释放阀16排出空气，直到燃料压力通过驱动达到预定值或更高在燃料压力释放阀16断续地打开的同时燃料泵5。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2004232574A Device and method of controlling combustion for direct injection type spark ignition device 有权
公开(公告)号：JP2004232574A
公开(公告)日：2004-08-19
申请号：JP2003023317
申请日：2003-01-31
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： KIKUCHI TSUTOMU , OKAMOTO SHINICHI , SUKETANI MASAHIKO , SEMII KAZUKUNI
IPC分类号： F02P5/15 , F02D37/02 , F02D41/02 , F02D41/04 , F02D41/12 , F02D41/38 , F02D41/40 , F02D43/00 , F02D45/00 , F02M47/00 , F02M55/02 , F02M57/02
CPC分类号： F02D41/401 , F02D37/02 , F02D41/126 , F02D41/3836 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To improve combustion control when resuming a fuel injection after the fuel injection is suspended temporarily in a device of controlling combustion of a direct-injection type spark ignition device where pressure within a pressure storage chamber is kept constant at a non-injection time of fuel. SOLUTION: This device includes target fuel pressure obtaining means for obtaining target fuel pressure (5 Mpa) based on the number of revolutions N2 and load T2, an actual fuel pressure detecting means for detecting actual fuel pressure (7 Mpa), a timing obtaining means for calculating a fuel injection timing and an ignition timing (50, 35 Deg.BTDC) based on the number of revolutions N2 and the load T2, and a first timing controlling means for controlling the fuel injection timing and the ignition timing in accordance with the fuel pressure (7 Mpa). The fuel injection timing and the ignition timing are delayed to 40, and 25 Deg. BTDC respectively. COPYRIGHT: (C)2004,JPO&NCIPI

9. 发明专利

JP2009162180A Fuel supply device for engine 审中-公开
标题翻译：发动机燃油供应装置
公开(公告)号：JP2009162180A
公开(公告)日：2009-07-23
申请号：JP2008002314
申请日：2008-01-09
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： TAKEDA TOMOYUKI , SEMII KAZUKUNI
IPC分类号： F02M59/20 , F02D41/04 , F02M55/00
摘要： PROBLEM TO BE SOLVED: To secure capacities of fuel pumps as a whole, and to secure a drive torque reduction margin by selectively operating the fuel pumps in a fuel supply device for an engine provided with a plurality of the fuel pumps driven by the engine. SOLUTION: This device is provided with a first fuel pump 3 driven by the engine and having a relatively small capacity and a second fuel pump 4 driven by the engine and having a capacity larger than that of the first fuel pump 3 as the fuel pumps for supplying the engine with fuel stored in the fuel tank 1. The fuel pumps 3, 4 are selectively operated according to engine operation conditions. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了确保燃料泵整体的容量，并且通过选择性地操作燃料泵来确保驱动扭矩减小余量，该燃料泵设置在具有多个燃料泵的燃料供应装置中，该多个燃料泵由引擎。解决方案：该装置设置有由发动机驱动并且具有相对较小容量的第一燃料泵3和由发动机驱动并且具有比第一燃料泵3的容量大的容量的第二燃料泵4作为用于向发动机供应存储在燃料箱1中的燃料的燃料泵。燃料泵3,4根据发动机运行条件选择性地运行。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2007239610A Device and method for setting target fuel pressure of engine 审中-公开
标题翻译：用于设定发动机目标燃油压力的装置和方法
公开(公告)号：JP2007239610A
公开(公告)日：2007-09-20
申请号：JP2006063209
申请日：2006-03-08
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SEMII KAZUKUNI
IPC分类号： F02M55/02 , F02D45/00 , F02M37/00 , F02M51/00
CPC分类号： F02D41/3845 , F02D41/221 , F02D2041/224 , F02D2250/31
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for setting a target fuel pressure for setting the target fuel pressure so that a fuel amount is not shorted irrespective of the operating conditions of an engine to which a fuel pressurized by a fuel pump driven by the engine is supplied.
SOLUTION: This target fuel pressure setting device sets the target fuel pressure of the engine to which the fuel pressurized by the fuel pump driven by the engine is supplied. This method for setting the target fuel pressure comprises the target fuel pressure setting means (step S5) of setting the target fuel pressure according to the operating conditions of the engine and target fuel pressure changing means (steps S1 to S4) for lowering the target fuel pressure when the fuel amount dischargeable from the fuel pump is short of the fuel amount required for the engine under a target fuel pressure.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于设定目标燃料压力的装置和方法，用于设定目标燃料压力，使得燃料量不会短路，而不管燃料加压的燃料的运行条件如何供应由发动机驱动的燃油泵。解决方案：该目标燃料压力设定装置设定由供给由发动机驱动的燃料泵加压的燃料的发动机的目标燃料压力。用于设定目标燃料压力的方法包括目标燃料压力设定装置（步骤S5），其根据发动机和目标燃料压力改变装置的操作条件来设定目标燃料压力（步骤S1至S4），用于降低目标燃料当从燃料泵排出的燃料量不足目标燃料压力下的发动机所需的燃料量时，压力。版权所有（C）2007，JPO＆INPIT

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