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1. 发明专利

JP2014125976A Exhaust post-treatment device of diesel engine 有权
标题翻译：柴油发动机排气后处理装置
公开(公告)号：JP2014125976A
公开(公告)日：2014-07-07
申请号：JP2012283601
申请日：2012-12-26
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA , NAKANO MASAHIKO , NAITO TETSUO , NISHIZAWA TORU
IPC分类号： F01N3/24 , B01D53/94 , F01N3/08 , F01N3/20 , F02D41/04 , F02D45/00
CPC分类号： Y02T10/24
摘要： PROBLEM TO BE SOLVED: To provide a device which can make proper a supply amount of a reductant used in rich spike even after the deterioration of a catalyst.SOLUTION: The exhaust post-treatment device of a diesel engine comprises: means (21) for setting an excess air rate of exhaust in initial treatment to a rich-side first fundamental excess air rate when a regeneration time of a NOx trap catalyst (15) has come; means (21) for setting an excess air rate of exhaust in post-treatment to a second fundamental excess air rate in the vicinity of 1.0 after the excess air rate of the exhaust is set to the first fundamental excess air rate; means (21) for estimating a degree of the deterioration of the NOx trap catalyst (15); means (21) for predicting a remaining oxygen amount of the NOx trap catalyst depending on the estimated degree of the deterioration of the catalyst; and means (21) for controlling a supply amount of a reductant in the post-treatment on the basis of the remaining oxygen amount predicted by the remaining oxygen amount prediction means.
摘要翻译：要解决的问题：提供即使在催化剂劣化之后也能够使富含穗中使用的还原剂的供给量适当的装置。解决方案：柴油发动机的排气后处理装置包括：用于当NOx捕集催化剂（15）的再生时间到来时，将初始处理时的废气的过剩空气率设定为浓侧第一基本过量空气流量; 用于在排气的过剩空气速率设定为第一基本过量空气速率之后，将后处理中的排气的过量空气速率设定为1.0附近的第二基本过量空气的装置（21）用于估计NOx捕集催化剂（15）的劣化程度的装置（21）; 用于根据估计的催化剂劣化程度预测NOx捕集催化剂的剩余氧量的装置（21）; 以及用于基于由剩余氧量预测装置预测的剩余氧量来控制后处理中的还原剂的供给量的装置（21）。

2. 发明专利

JP2008008241A Control device for engine 有权
标题翻译：发动机控制装置
公开(公告)号：JP2008008241A
公开(公告)日：2008-01-17
申请号：JP2006181110
申请日：2006-06-30
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： KOGA TOSHIMASA , ISHIBASHI YASUTAKA
IPC分类号： F02D43/00 , F01N3/02 , F01N3/24 , F01N3/28 , F02D9/02 , F02D23/00 , F02D41/12 , F02D45/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To prevent a supercharger from shifting to its surge generation domain at the time of vehicular deceleration. SOLUTION: The control device includes a supercharger 21 driven by exhaust energy from an engine, an intake-throttle valve 18 disposed on the downstream side of a compressor 23 of the supercharger 21, a supercharging pressure control means 24 for controlling the supercharging pressure of the supercharger 21, and a throttle ratio control means 31 for controlling an opening of the intake throttle valve 18. The supercharging pressure control means 24 controls to decrease the supercharging pressure of the supercharger 21, and the throttle ratio control means 31 controls to reduce the opening of the intake throttle valve 18 with moderate-controlling the opening at the time of vehicular deceleration. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了防止增压器在车辆减速时转移到浪涌产生区域。解决方案：控制装置包括由发动机的排气能量驱动的增压器21，设置在增压器21的压缩机23的下游侧的进气节流阀18，用于控制增压器的增压压力控制装置24 增压器21的压力，以及用于控制进气节流阀18的打开的节气门比控制装置31.增压控制装置24控制减小增压器21的增压压力，并且节流比控制装置31控制为通过适度控制车辆减速时的开度来减小进气节流阀18的打开。版权所有（C）2008，JPO＆INPIT

3. 发明专利

JP2006183558A Control device of engine 有权
标题翻译：发动机控制装置
公开(公告)号：JP2006183558A
公开(公告)日：2006-07-13
申请号：JP2004377517
申请日：2004-12-27
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SHIRAKAWA AKIRA , ISHIBASHI YASUTAKA , TODOROKI HIKARI
IPC分类号： F02D21/08 , F02B37/00 , F02B37/24 , F02D9/02 , F02D23/00 , F02D23/02 , F02D41/02 , F02D41/12 , F02D41/38 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F02D41/005 , F02B29/0406 , F02D41/0005 , F02D41/0007 , F02D41/12 , F02M26/05 , Y02T10/144 , Y02T10/42 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of surge noise during deceleration of a vehicle. SOLUTION: The control device is equipped with a turbocharger 21 driven by exhaust energy of an engine 1; at least either of a NOx trap catalyst 29 or a DPF 28 which is arranged in an exhaust passage 2 of the engine 1 to purify exhaust; an EGR passage 4 through which the exhaust passage 2 communicates with an intake passage 3 of the engine 1; an EGR valve 6 for adjusting the flow passage cross section of the EGR passage 4; a means 31 for detecting deceleration of a vehicle; and a fuel cut control means 31 for performing fuel cut control for reducing a fuel injection volume during a period when specific conditions are satisfied, wherein the EGR valve 6 is closed during the vehicle deceleration period. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止在车辆减速期间发生浪涌噪声。解决方案：控制装置配备有由发动机1的排气能量驱动的涡轮增压器21; 排放在发动机1的排气通道2中的NOx捕集催化剂29或DPF 28中的至少一个净化排气; 排气通路2与发动机1的进气通路3连通的EGR通路4; 用于调节EGR通路4的流路截面的EGR阀6; 用于检测车辆减速度的装置31; 以及燃料切断控制装置31，用于在满足特定条件的时段内执行用于减少燃料喷射量的燃料切断控制，其中在车辆减速期间EGR阀6关闭。版权所有（C）2006，JPO＆NCIPI

4. 发明专利

JP2010112295A Fuel injection control device and control method of internal combustion engine 审中-公开
标题翻译：燃油喷射控制装置及内燃机的控制方法
公开(公告)号：JP2010112295A
公开(公告)日：2010-05-20
申请号：JP2008286486
申请日：2008-11-07
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA , YASUHARA KOSUKE
IPC分类号： F02D41/38 , F02D21/08 , F02D41/40 , F02D45/00
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To reduce combustion noise of an internal combustion engine while preventing deterioration of fuel economy and exhaust gas composition.
SOLUTION: A fuel injection control device of the internal combustion engine 1 performs pilot injection and main injection for suppressing combustion noise. A sensor 13 detects combustion sound or vibration of the internal combustion engine 1 and a controller 70 determines based on the combustion sound or vibration of the internal combustion engine 1 whether or not the pilot injection is performed. Further, the controller 70 corrects a pilot injection amount based on the determination result and causes pilot combustion to be surely performed with minimum increment correction of the pilot injection amount.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了减少内燃机的燃烧噪声，同时防止燃料经济性和废气组成的劣化。解决方案：内燃机1的燃料喷射控制装置执行用于抑制燃烧噪声的先导喷射和主喷射。传感器13检测内燃机1的燃烧声或振动，并且控制器70基于内燃机1的燃烧声音或振动来确定是否执行先导喷射。此外，控制器70基于确定结果来校正先导喷射量，并且以先导喷射量的最小增量校正来确定地执行先导燃烧。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008095554A Fuel injection control device and fuel injection control method 审中-公开
标题翻译：燃油喷射控制装置和燃油喷射控制方法
公开(公告)号：JP2008095554A
公开(公告)日：2008-04-24
申请号：JP2006275544
申请日：2006-10-06
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA
IPC分类号： F02D41/04 , F02D41/38
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control device capable of accurately learning a non-injection current carrying time without worsening a driving feeling.
SOLUTION: The fuel injection control device learning the non-injection current carrying time until fuel is actually injected after instructing fuel injection to an injector, has an injection instructing means for instructing fuel injection to the injector (step S33), an engine state determining means for determining whether a change has occurred to the engine operating state after the lapse of a reference time after instructing the fuel injection (step S36), a reference time updating means for updating the reference time by adding a predetermined time to the reference time when no change has occurred to the engine operating state (step S32), and a non-injection current carrying time learning means for learning the time obtained by subtracting the predetermined time from the reference time at that time, as the non-injection current carrying time (step S38).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够在不使驾驶感觉恶化的情况下准确地学习非喷射载流时间的燃料喷射控制装置。解决方案：燃料喷射控制装置具有注射指示装置，用于指示喷射器的燃料喷射（步骤S33），发动机状态确定装置，用于在指示燃料喷射之后确定在经过基准时间之后的发动机运行状态是否发生了变化（步骤S36）;参考时间更新装置，用于通过向参考值添加预定时间来更新参考时间发动机工作状态没有发生变化的时间（步骤S32），以及非注入电流承载时间学习装置，用于通过从该时刻的基准时间减去预定时间而获得的时间作为非注入电流携带时间（步骤S38）。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2007177640A Engine control device 审中-公开
标题翻译：发动机控制装置
公开(公告)号：JP2007177640A
公开(公告)日：2007-07-12
申请号：JP2005374525
申请日：2005-12-27
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： TODOROKI HIKARI , SHIRAKAWA AKIRA , ISHIBASHI YASUTAKA
IPC分类号： F02D23/00 , F02B37/00 , F02B37/007 , F02B37/02 , F02B37/16 , F02B37/18 , F02B37/24 , F02D9/02 , F02D9/04 , F02D21/10 , F02D23/02 , F02D41/02 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To optimally control exhaust performance in an engine equipped with an inlet-exhaust device separate for every one of a plurality of cylinder groups. SOLUTION: An intake passage 20, an exhaust passage 30, a fuel injection device group 53, a supercharger 10 and an EGR device 40, 41 are provided separately for every cylinder group of a multicylinder engine. An engine control system comprises an EGR control means 70, a fuel injection quantity control means 70, a supercharger control means 70, which respectively control the above devices at every cylinder group, a target engine torque calculation means 70 for calculating target engine torque based on an operation state and a target value setting means 70 for setting a target fuel injection quantity, a target EGR rate, a target air excess rate and a target air intake amount or a target charging pressure based on the operation state and the target engine torque, which are common to the respective cylinder groups, wherein the EGR control means 70, fuel injection quantity control means 70 and supercharger control means 70 perform control for attaining the target fuel injection quantity and the target air intake amount. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了最佳地控制配备有针对多个气缸组中的每一个分开的入口排气装置的发动机的排气性能。
解决方案：对于多缸发动机的每个气缸组，分别设置有进气通道20，排气通道30，燃料喷射装置组53，增压器10和EGR装置40,41。发动机控制系统包括：EGR控制装置70，燃料喷射量控制装置70，分别控制每个气缸组上述装置的增压器控制装置70，用于基于操作状态和目标值设定装置70，用于基于操作状态和目标发动机扭矩设定目标燃料喷射量，目标EGR率，目标空气过剩率和目标进气量或目标充气压力，对于各个气缸组是共同的，其中EGR控制装置70，燃料喷射量控制装置70和增压器控制装置70执行用于获得目标燃料喷射量和目标进气量的控制。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2005240587A Exhaust emission control device of diesel engine 有权
标题翻译：柴油发动机排气排放控制装置
公开(公告)号：JP2005240587A
公开(公告)日：2005-09-08
申请号：JP2004048272
申请日：2004-02-24
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NISHIZAWA TORU , KISHINO MASAYOSHI , ISHIBASHI YASUTAKA
IPC分类号： F02B37/24 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/08 , F01N3/24 , F01N3/28 , F02B37/00 , F02D21/08 , F02D23/00 , F02D41/04 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F02M26/46 , F02M26/05 , F02M26/23 , F02M26/47
摘要： PROBLEM TO BE SOLVED: To effectively reduce particulates and NOx even immediately after the regeneration of an exhaust gas trap. SOLUTION: This exhaust emission control device of a diesel engine comprises an exhaust gas recirculation means recirculating a part of the exhaust gases into an intake air, an adsorbing type NOx catalyst 13 adsorbing NOx in a lean atmosphere and releasing and reducing NOx adsorbed in a rich atmosphere, and the exhaust gas trap 14 collecting particulates in the exhaust gases. When the collected amount of the particulates by the exhaust gas trap 14 reaches a prescribed value, the exhaust gas trap 14 is regenerated. During a prescribed period after the regeneration of the exhaust gas trap 14, the recirculated amount of the exhaust gases is reduced and the sucked amount of air is reduced to a predetermined amount. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使在排气阱的再生之后立即有效地还原微粒和NOx。解决方案：柴油发动机的废气排放控制装置包括：废气再循环装置，其将一部分废气再循环到进气中;吸附型NOx催化剂13，其在贫气氛中吸附NOx，并释放和还原NOx吸附并且废气捕集器14收集废气中的微粒。当通过排气阱14收集的微粒量达到规定值时，废气捕集器14再生。在废气捕集器14再生后的规定时间内，废气的再循环量减少，吸入的空气量减少到规定量。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2010053842A Exhaust emission control device for diesel engine 有权
标题翻译：柴油发动机排气排放控制装置
公开(公告)号：JP2010053842A
公开(公告)日：2010-03-11
申请号：JP2008222364
申请日：2008-08-29
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： YAMAMOTO RISA , TODOROKI HIKARI , YONETANI SHUHEI , ISHIBASHI YASUTAKA
IPC分类号： F02D41/14 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of fuel consumption and exhausting performance in a diesel engine. SOLUTION: An exhaust emission control device for a diesel engine includes: an NOx deposition amount computing means for computing the amount of NOx to be deposited on an NOx trap catalyst 12 in the lean combustion condition; an NOx desorption rate computing means for computing the desorption rate of NOx to be desorbed from the NOx trap catalyst 12 in the rich combustion condition; and an exhaust air-fuel ratio rich control means for raising air-fuel ratio of the exhaust to a theoretical air-fuel ratio or more by performing post injection to reduce the excess air ratio of the exhaust. This exhaust emission control device executes the exhaust air-fuel ratio rich control based on the deposition amount of NOx deposited on the NOx trap catalyst. When computing the NOx desorption rate, the exhaust emission control device performs a first correction based on the excess air ratio detected by an exhaust sensor 20 in the exhaust air-fuel ratio rich control and a second correction considering unburned HC which is not detected by the exhaust sensor 20 in the exhaust air-fuel ratio rich control. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了防止柴油发动机的燃料消耗和排气性能的劣化。解决方案：一种用于柴油发动机的废气排放控制装置，包括：NOx沉积量计算装置，用于计算在稀燃燃烧条件下在NOx捕集催化剂12上沉积的NOx的量; NOx解吸率计算装置，用于计算在富燃燃烧条件下从NOx捕集催化剂12解吸的NOx的解吸速率; 以及通过进行后喷射来将排气的空燃比提高到理论空燃比以上的排气空燃比浓调控制装置，以减少排气的过剩空气比。该废气排放控制装置基于在NOx捕集催化剂上沉积的NOx的沉积量来执行排气空燃比浓缩控制。在计算NOx解吸速度时，排气排放控制装置基于在排气空燃比浓缩控制中由排气传感器20检测出的过剩空气比进行第一校正，以及考虑未被HC检测到的未燃HC的第二校正排气传感器20的排气空燃比丰富的控制。版权所有（C）2010，JPO＆INPIT

9. 发明专利

JP2008231978A Diagnostic device for nox catalyst 有权
标题翻译： NOX催化剂诊断装置
公开(公告)号：JP2008231978A
公开(公告)日：2008-10-02
申请号：JP2007070400
申请日：2007-03-19
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA
IPC分类号： F01N3/20 , B01D53/94 , F01N3/02 , F01N3/24
CPC分类号： B01D53/9495 , B01D53/9422 , B01D53/9431 , B01D53/944 , B01D53/9459 , B01D2257/404 , B01D2258/012 , B01D2259/4566 , F01N3/0821 , F01N3/0842 , F01N11/00 , F01N13/009 , F01N2550/03 , F01N2550/06 , F01N2550/14 , F01N2900/1606 , F02D41/1446 , F02D41/1467 , F02D2200/0812 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a device for determining the degradation of an NOx catalyst without installing an NOx sensor. SOLUTION: This diagnostic device for an NOx catalyst comprises: an NOx catalyst 3; a filter 4 positioned on the downstream side of the NOx catalyst 3 and collecting the particulates in the exhaust gas; a calculation means 11 for calculating the amount of the particulates flowing into the filter 4; an estimating means 11 for estimating the amount of the particulates deposited on the filter 4; and a degradation determination means 11 for determining whether the NOx catalyst 3 is degraded or not according to the amount of the particulates flowing into the filter 4 and the amount of the particulates deposited on the filter 4. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于在不安装NOx传感器的情况下确定NOx催化剂的劣化的装置。解决方案：该用于NOx催化剂的诊断装置包括：NOx催化剂3; 位于NOx催化剂3的下游侧并将废气中的微粒收集的过滤器4; 用于计算流入过滤器4的微粒量的计算装置11; 用于估计沉积在过滤器4上的微粒量的估计装置11; 以及用于根据流入过滤器4的微粒量和沉积在过滤器4上的微粒量来确定NOx催化剂3是否劣化的劣化确定装置11.版权所有（C）2009 ，JPO＆INPIT

10. 发明专利

JP2008111428A Exhaust gas temperature control method and exhaust gas temperature control device of internal combustion engine, and internal combustion engine system 有权
标题翻译：内燃机排气温度控制方法及排气温度控制装置及内燃机系统
公开(公告)号：JP2008111428A
公开(公告)日：2008-05-15
申请号：JP2007232837
申请日：2007-09-07
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ISHIBASHI YASUTAKA
IPC分类号： F02D41/04 , F02D41/38 , F02D41/40
CPC分类号： F02D41/024 , F02D41/401 , F02D41/405 , F02D2250/11 , Y02T10/26 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas temperature control device that is configured and arranged to raise the temperature of the exhaust gas and to restore the performance of an exhaust emission control device (e.g., regenerating a DPF or removing sulfur contamination from a NOx trapping catalytic converter) while suppressing dilution of the engine oil.
SOLUTION: In this method for controlling exhaust gas temperature, both of retardation of injection timing of main fuel injection and execution of post injection which is additional fuel injection after main fuel injection are performed to raise exhaust gas temperature when an internal combustion engine is operating in a first operating region. On the other hand, retardation of injection timing of main fuel injection is performed and post injection which is additional fuel injection after main fuel injection is prohibited to raise exhaust gas temperature when the internal combustion engine is operating in a second operation region which is a higher load condition than the first operating region. Consequently, performance of the exhaust emission control device can be restored while suppressing dilution of the engine oil.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种排气温度控制装置，其被配置和布置成升高废气的温度并恢复废气排放控制装置的性能（例如，再生DPF或除去硫污染来自NOx捕集催化转化器），同时抑制发动机油的稀释。解决方案：在这种用于控制排气温度的方法中，执行主燃料喷射的喷射正时的延迟和作为主燃料喷射之后的附加燃料喷射的后喷射的执行，以提高内燃机在第一操作区域中操作。另一方面，进行主燃料喷射的喷射正时的延迟，在主燃料喷射后作为附加燃料喷射的后喷射被禁止以在内燃机在较高的第二操作区域中操作时提高废气温度负载条件比第一操作区域。因此，可以在抑制发动机油的稀释的同时恢复废气排放控制装置的性能。版权所有（C）2008，JPO＆INPIT

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