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31. 发明专利

JP2007278070A Internal combustion engine 有权
标题翻译：内燃机
公开(公告)号：JP2007278070A
公开(公告)日：2007-10-25
申请号：JP2006101466
申请日：2006-04-03
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： YAMAMOTO RISA , MIURA MANABU
IPC分类号： F01N3/20 , B01D53/94 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To provide a rich spike control performing good reduction of an NO x trap catalyst without deteriorating exhaust performance. SOLUTION: In an internal combustion engine 1 having the NO x trap catalyst 11 in an exhaust passage, first enriching by decreasing an air excess ratio to a first target air excess ratio λ1 within a desorption range where NO x is desorbed from the NO x trap catalyst 11, and second enriching by decreasing the air excess ratio to be lower than the first target air excess ratio λ1 so as to reduce the NO x desorbed by the first enriching, are performed. When regeneration request is made, the first enriching is performed and start of the second enriching is prohibited until it is determined that the air excess ratio is shifted to the first target air excess ratio λ1 by the first enriching. On the other hand, when it is determined that the air excess ratio is shifted to the first target air excess ratio λ1, a control for starting the second enriching is performed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供丰富的尖峰控制，可以在不降低排气性能的情况下实现NO SBB x捕捉催化剂的良好还原。解决方案：在排气通道中具有NO x 捕集催化剂11的内燃机1中，首先通过在脱附范围内将空气过剩率降低到第一目标空气过剩率λ1来富集其中NO x 从NO x 捕集催化剂11解吸，并且通过将空气过剩率降低到低于第一目标空气过剩率λ1来进行第二次富集，以便减少由第一次富集脱附的NO x 。当进行再生请求时，执行第一浓缩，并且禁止第二浓缩开始，直到通过第一次浓缩确定空气过剩率转移到第一目标空气过剩比率λ1为止。另一方面，当确定空气过剩率偏移到第一目标空气过剩比率λ1时，执行用于开始第二浓缩的控制。版权所有（C）2008，JPO＆INPIT

32. 发明专利

JP2006275059A Control device for turbocharger 有权
标题翻译：涡轮增压器控制装置
公开(公告)号：JP2006275059A
公开(公告)日：2006-10-12
申请号：JP2006191635
申请日：2006-07-12
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SHIRAKAWA AKIRA , MIWA HIROMICHI , ITOYAMA HIROYUKI , MIURA MANABU
IPC分类号： F02B37/12 , F02B37/24 , F02D23/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To smooth operation of an actuator even in a cold time or the like by performing the control to confirm operation of the actuator. SOLUTION: The control device is equipped with a turbocharger for supercharging air taken in by an engine (1) through an intake passage (3), an exhaust flow adjusting means (53) for adjusting flow rate or flow velocity of the exhaust flowing into an exhaust turbine (52) of the turbocharger, the actuator (54) for driving the exhaust flow adjusting means (53) upon receipt of supply of the pressure corresponding to a command value, an operation target value setting means (41) for setting an operation target value of the exhaust flow adjusting means (53), a converting means (41) for converting the operation target value to a first command value, an operation confirmation command value generating means (41) for generating a second command value to confirm the operation of the actuator (54), and a command value selecting meas (41) for selecting one of the first command value and the second command value as a command value. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过执行控制以确认致动器的操作，即使在冷时间等中也能平滑操作致动器。解决方案：控制装置装备有用于通过进气通道（3）对由发动机（1）吸入的空气进行增压的涡轮增压器，用于调节排气流量或流速的排气流量调节装置（53）流入涡轮增压器的排气涡轮机（52），用于在接收到与指令值相对应的压力的供给时驱动排气流量调节装置（53）的致动器（54），用于设置排气流量调节装置的操作目标值，将操作目标值转换为第一指令值的转换装置（41），产生第二指令值的操作确认命令值生成装置（41）确认致动器（54）的操作，以及用于选择第一命令值和第二命令值中的一个作为指令值的命令值选择meas（41）。版权所有（C）2007，JPO＆INPIT

33. 发明专利

JP2006177241A Control device for internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2006177241A
公开(公告)日：2006-07-06
申请号：JP2004370959
申请日：2004-12-22
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA MANABU
IPC分类号： F02D45/00 , F02D41/08 , F02D41/16
CPC分类号： F02D31/001 , F02D41/083
摘要： PROBLEM TO BE SOLVED: To carry out rotating speed control of good response in idling operation even when an excess air ratio falls and the degree of constant volume falls in a diesel engine.
SOLUTION: The degree of constant volume CVOL during idling operation is predicted from at least one of the excess air ratio, ignition timing of fuel and a compression end temperature in a cylinder (S1). Motoring load FMO during idling operation is predicted from at least one of intake pressure, the excess air ratio, water temperature and auxiliary machine load (S2). An idling injection quantity is computed from the degree of constant volume CVOL and motoring load FMOT (S3-S6).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：即使当过量空气比下降并且恒定体积下降到柴油发动机中时，也执行怠速运转中良好响应的转速控制。解决方案：从空气过剩空气比，燃料点火正时和气缸中的压缩终止温度中的至少一个预测怠速运行期间的恒定体积CVOL的程度（S1）。从进气压力，过量空气比，水温和辅助机器负荷中的至少一个预测空转运行期间的运转负载FMO（S2）。从恒定体积CVOL和电动负载FMOT（S3-S6）的程度计算怠速喷射量。版权所有（C）2006，JPO＆NCIPI

34. 发明专利

JP2005048724A Fuel injection control device for engine 有权
标题翻译：发动机燃油喷射控制装置
公开(公告)号：JP2005048724A
公开(公告)日：2005-02-24
申请号：JP2003283787
申请日：2003-07-31
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA MANABU
IPC分类号： F01N3/02 , F01N3/08 , F01N3/20 , F01N3/28 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/40
CPC分类号： F02D41/401 , F02D41/027 , F02D41/0275 , F02D41/1456 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To reduce torque fluctuation due to deflection of fuel injection timing from the optimum value when the excess air ratio is quickly changed from lean into rich at the time of a dissociation/reduction process of a NOx trap catalyst or the like. SOLUTION: When change quantity of the excess air ratio is large, correction is performed to change the fuel injection timing in accordance with an actual excess air ratio by interpolation computation or the like based on a target excess air ratio and the actual excess air ratio. Since the fuel injection timing is changed in accordance with change of the actual excess air ratio as converging to the target excess air ratio, proper fuel injection timing can be set in accordance with the actual excess air ratio. Action of quick change of the fuel injection timing in steps between target values before and after change of the excess air ratio is restricted, thereby torque fluctuation can be reduced. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了在NOx捕集催化剂的解离/还原过程中将过量空气比迅速从稀燃变为浓时，减少由于燃料喷射时间的偏转引起的扭矩波动，类似。解决方案：当过量空气比的变化量大时，通过基于目标过剩空气比和实际超过量的内插计算等，根据实际过量空气比来进行修正，以改变燃料喷射正时空气比。由于燃料喷射正时根据实际过量空气比的变化而变化，因为会聚到目标过剩空气比，可以根据实际的过量空气比来设定适当的燃料喷射正时。限制了过量空气比变化前后的目标值之间的燃料喷射正时的快速变化的动作，能够降低转矩波动。版权所有（C）2005，JPO＆NCIPI

35. 发明专利

JP2005048701A Exhaust emission control device for engine 有权
标题翻译：用于发动机的排气排放控制装置
公开(公告)号：JP2005048701A
公开(公告)日：2005-02-24
申请号：JP2003282967
申请日：2003-07-30
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA MANABU
IPC分类号： F02M25/07 , F01N3/02 , F01N3/20 , F01N3/24 , F02D9/02 , F02D21/08 , F02D41/04 , F02D41/06 , F02D45/00
CPC分类号： F02M26/46 , F02M26/05
摘要： PROBLEM TO BE SOLVED: To solve a problem that an exhaust temperature rise is excessively performed from detection error of an activation state and a catalyst may be overheated, in an engine performing an exhaust temperature rise control for activating an oxidation catalyst disposed to an exhaust passage. SOLUTION: For a given period of time after the exhaust temperature rise is performed, another exhaust temperature rise is suppressed regardless of a determination result of the activation state by a temperature sensor. Therefore, the invention causes no inconvenience to supply an excess amount of heat to the oxidation catalyst whose activation is going on and to overheat the catalyst or a DPF. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题为了解决由激活状态的检测误差而过度地进行排气温度上升和催化剂过热的问题，在进行排气温度升高控制的发动机中，将排出温度上升控制用于激活设置在排气通道解决方案：在执行排气温升之后的给定时间段内，与温度传感器的启动状态的确定结果无关地抑制另一排气温度升高。因此，本发明不会对活化进行的氧化催化剂供给过量的热并使催化剂或DPF过热。版权所有（C）2005，JPO＆NCIPI

36. 发明专利

JP2005042664A Combustion controller of internal combustion engine 审中-公开
公开(公告)号：JP2005042664A
公开(公告)日：2005-02-17
申请号：JP2003279632
申请日：2003-07-25
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： YASUHARA KOSUKE , MIURA MANABU
IPC分类号： F02M25/07 , F01N3/02 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D21/08 , F02D23/00 , F02D23/02 , F02D41/02 , F02D41/04 , F02D41/38 , F02D43/00
CPC分类号： Y02T10/144 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an optimum supercharging pressure control when an exhaust temperature rise is aimed by realizing a target exhaust temperature and a target air-fuel ratio to meet a regeneration of a DPF or an S poisoning release, etc. of an NOx trap catalyst. SOLUTION: A combustion controller of an internal combustion engine performs a main combustion for generating a main torque and a preliminary combustion performed prior to the main combustion. The combustion controller controls a fuel injection so as to arise the preliminary combustion near a compression top dead center and to start the main combustion after the preliminary combustion is finished. At such a combustion time, the degree of variable nozzle opening of a supercharger is increased rather than the time of a normal combustion, and controlled to a non-supercharging side. COPYRIGHT: (C)2005,JPO&NCIPI

37. 发明专利

JP2005002852A Exhaust emission cleaning device for engine 有权
标题翻译：用于发动机的排气清洁装置
公开(公告)号：JP2005002852A
公开(公告)日：2005-01-06
申请号：JP2003166044
申请日：2003-06-11
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA MANABU
IPC分类号： F01N3/20 , B01D53/94 , F01N3/08 , F01N3/24 , F02D21/08 , F02D41/00 , F02D41/02 , F02D41/06
CPC分类号： F01N3/0835 , F01N3/0814 , F02D41/005 , F02D41/0255 , F02D2200/0802 , Y02T10/16 , Y02T10/26
摘要： PROBLEM TO BE SOLVED: To promote activation of HC adsorbing catalyst while suppressing degradation of emission as much as possible. SOLUTION: After starting of the engine, a target excess air ratio tLamd is set to a value Lamd1 smaller than a value in normal time to rise a exhaust gas temperature and promote the activation of the HC adsorbing catalyst. At this time, when a temperature of the HC adsorbing catalyst reaches a temperature TBED2# in starting oxidation of HC, the target excess air ratio tLamd is switched to a value larger than the Lamd1 and slightly larger than 1 to utilize heat generated by the oxidation of the HC for promoting the HC adsorbing catalyst. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：待解决的问题：尽可能地抑制排放的降解，促进HC吸附催化剂的活化。解决方案：发动机启动后，目标空气过剩率tLamd设定为小于正常时间值的值Lamd1，以提高排气温度并促进HC吸附催化剂的活化。此时，当HC吸附催化剂的温度在HC的起始氧化中达到温度TBED2＃时，目标过剩空气比tLamd被切换到大于Lamd1的值，稍大于1以利用由氧化产生的热量的HC用于促进HC吸附催化剂。版权所有（C）2005，JPO＆NCIPI

38. 发明专利

JP2004301103A Deterioration diagnostic device of waste gas purifying catalyst 有权
公开(公告)号：JP2004301103A
公开(公告)日：2004-10-28
申请号：JP2003097935
申请日：2003-04-01
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ONODERA HITOSHI , SHIRAKAWA AKIRA , KITAHARA YASUHISA , MIURA MANABU
IPC分类号： F02D45/00 , F01N3/08 , F01N3/20 , F01N3/28
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To appropriately diagnose the degree of deterioration of an NOx trap catalyst. SOLUTION: In a rich spike operation, when an output value VO2 F at an inlet O2 sensor reaches a predetermined value VO2 F , and an output value VO2 R at an outlet O2 sensor is lower than the output value VO2 F of the inlet 02 sensor, a difference VOBD 02 between the output value V02 F at the inlet 02 sensor and the output value VO2 R at the output O2 sensor is calculated. The deterioration of the NOx trap catalyst is diagnosed based on the difference VOBD O2 . COPYRIGHT: (C)2005,JPO&NCIPI

39. 发明专利

JP2004052561A Exhaust emission control device for diesel engine 有权
公开(公告)号：JP2004052561A
公开(公告)日：2004-02-19
申请号：JP2002206848
申请日：2002-07-16
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： MIURA MANABU
IPC分类号： F02D43/00 , F01N3/08 , F01N3/20 , F01N3/28 , F02D41/04
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To reduce a HC exhaust amount when performing rich spike for recovering a NOx trapping catalyst.
SOLUTION: The NOx trapping amount of the NOx trapping catalyst is estimated, and when it reaches a preset level, the percentage of excessive air is reduced by using an intake throttle valve and an EGR to recover the NOx trapping catalyst. An actual percentage of excessive λ reaches a first percentage of excess air by using the intake throttle valve and the EGR, it is momentarily reduced to a second percentage of excessive allowing the recovery by increasing a small injection amount of fuel. The first percentage of excessive is set at a limiting value avoiding a great increase of the HC exhaust amount. Thus, a period t2 in which the HC exhaust amount is increased with no recovery can be reduced and a period for the rich spike required for the recovery be reduced. The total HC exhaust amount each time for recovery is therefore restricted.
COPYRIGHT: (C)2004,JPO

40. 发明专利

JP2004003389A Exhaust gas recirculation controlling device of internal combustion engine 有权
公开(公告)号：JP2004003389A
公开(公告)日：2004-01-08
申请号：JP2002159901
申请日：2002-05-31
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ITOYAMA HIROYUKI , AIZAWA HIROYUKI , MIURA MANABU
IPC分类号： F02M25/07 , F02D21/08
CPC分类号： F02B29/0406 , F02M26/05 , Y02T10/121
摘要： PROBLEM TO BE SOLVED: To always realize a target EGR quantity and target EGR rate regardless of a change in opening of an intake throttle valve 7 in controlling the opening of an EGR valve 12 to realize the target EGR quantity and target EGR rate according to the operating condition. SOLUTION: An EGR flow velocity basic value is computed on the basis of the actual EGR quantity and actual EGR rate. The EGR flow velocity basic value is corrected according to the target intake amount set corresponding to the operating condition to obtain an EGR flow velocity. The opening of the EGR valve 12 is controlled according to the target EGR quantity and EGR flow velocity. COPYRIGHT: (C)2004,JPO

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