专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2006169997A Deterioration determining device of catalyst 审中-公开
标题翻译：催化剂测定装置的测定
公开(公告)号：JP2006169997A
公开(公告)日：2006-06-29
申请号：JP2004361094
申请日：2004-12-14
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
CPC分类号： F01N3/0842 , F01N3/0814 , F01N3/10 , F01N11/002 , F01N2250/12 , F01N2550/02 , F01N2550/03 , F02D2200/0811 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To precisely determine the deterioration of an NOx trap catalyst.
SOLUTION: The catalyst temperature of the NOx trap catalyst is detected or predicted, and adsorption efficiencies ηB and A before the deterioration and after the deterioration are set from the catalyst temperature (S4). An NOx trap quantity BNOx and ANOx per unit time is determined by the product of these adsorption efficiencies ηB and ηA and an NOx quantity Qn(S5) in exhaust gas (S6 and S7), and an NOx trap quantity SBNOx and SANOx before the deterioration and after the deterioration is predicted by integrating this quantity for a predetermined time (S8). An NOx trap quantity predicted value SBNOx before the deterioration is compared with an NOx trap quantity predicted value SANOx after the deterioration, and when its difference (SBNOx-SANOx) is less than a predetermined value #SL, it is determined as the deterioration (S10 and S11).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：精确地确定NOx捕集催化剂的劣化。解决方案：检测或预测NOx捕集催化剂的催化剂温度，并根据催化剂温度（S4）设定劣化之前和劣化后的吸附效率ηB和A。每单位时间的NOx捕集量BNOx和ANOx由废气中的这些吸附效率ηB和ηA与NOx排放量Qn（S5）的乘积（S6和S7）以及劣化前的NOx捕集量SBNOx和SANOx的乘积确定并且在通过将该量积分预定时间来预测劣化之后（S8）。恶化前的NOx捕集量预测值SBNOx与劣化后的NOx捕集量预测值SANOx进行比较，当其差（SBNOx-SANOx）小于规定值#SL时，判定为劣化（S10 和S11）。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2005240757A Control device of internal-combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2005240757A
公开(公告)日：2005-09-08
申请号：JP2004054516
申请日：2004-02-27
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 , F02B3/00 , F02B17/00 , F02D41/00 , F02D41/02 , F02D41/04 , F02D41/38 , F02D45/00
CPC分类号： F02D41/402 , F02D19/061 , F02D19/0649 , F02D19/088 , F02D41/0002 , F02D41/0025 , F02D41/024 , F02D41/028 , F02D41/403 , F02D2200/0611 , F02D2250/18 , Y02T10/26 , Y02T10/36 , Y02T10/42 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To make compensation of a torque drop during the specified combustion control even for varied fuel properties. SOLUTION: Calculation is made for a modification factor kal for modifying the first torque correction coefficient Ka1 in accordance with the air-fuel ratio on the basis of the specific gravity DST of the fuel, while calculation is made for a modification factor ka2 for modifying the second torque correction coefficient Ka2 in accordance with the working gas amount on the basis of the specific gravity DST of the fuel, and calculation is made for a modification factor ka3 for modifying the third torque correction coefficient Ka3 in accordance with the fuel injection timing on the basis of the aroma component content ARM of the fuel, and then the modification factor ka for modifying the torque correction value is calculated by multiplying all of these modification factors ka1-ka3. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：即使对于不同的燃料性质，也可以在指定的燃烧控制期间补偿转矩下降。解决方案：根据燃料的比重DST，根据空燃比修正第一转矩校正系数Ka1的修正系数kal，计算修正因子ka2 用于根据燃料的比重DST根据工作气体量修正第二扭矩校正系数Ka2，并且计算用于根据燃料喷射修正第三扭矩校正系数Ka3的修正系数ka3 基于燃料的芳香成分含量ARM的定时，然后通过乘以所有这些修正因子ka1-ka3来计算修正扭矩校正值的修正因子ka。版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005240717A Catalyst deterioration diagnostic device 有权
标题翻译：催化检测诊断装置
公开(公告)号：JP2005240717A
公开(公告)日：2005-09-08
申请号：JP2004053376
申请日：2004-02-27
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： G01N27/409 , F01N3/00 , F01N3/08 , F01N3/20 , F01N3/28 , F01N11/00 , F02B37/24 , F02D41/14 , F02D45/00 , G01N27/26
CPC分类号： F01N3/0835 , F01N3/0821 , F01N11/007 , F01N2550/02 , F01N2550/03 , F01N2900/0422 , F02B37/24 , F02D41/1441 , F02D41/1456 , F02D41/1495 , Y02T10/20 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To diagnose whether or not deterioration of a catalyst is generated even during operation at a lean air fuel ratio, and prevent misdiagnosis of catalyst deterioration even when exhaust condition amount varies. SOLUTION: This deterioration diagnostic device is provided with a catalyst (42) provided on an exhaust passage (2) and capable of removing detrimental components in exhaust gas; an air fuel ratio switching means (31) arbitrarily switching an air fuel ratio during operation to a lean air fuel ratio and other air fuel ratios; a detection means (31) for components derived from oxygen ions, which detects the components derived from oxygen ions before and after the catalyst (42) during operation after switching to the lean air fuel ratio; a catalyst deterioration determination means (31) determining that deterioration of the catalyst (42) is generated, when difference between the components derived from oxygen ions before and after the catalyst (42) detected by the detection means (31) is below a predetermined value; and an exhaust condition amount calculating means (31) calculating the predetermined value in accordance with the exhaust condition amount. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了诊断即使在稀薄空燃比的操作中催化剂的劣化是否发生，并且即使当排气条件量变化时也防止催化剂劣化的误诊。解决方案：该劣化诊断装置设置有设置在排气通道（2）上并能够去除废气中的有害成分的催化剂（42）空燃比切换装置（31）将运转中的空燃比任意切换为稀空燃比和其他空燃比; 用于从氧离子衍生的成分的检测装置（31），其在切换到所述稀薄空燃比之后检测在所述催化剂（42）之前和之后来自氧离子的成分; 当由检测装置（31）检测到的催化剂（42）之前和之后的氧离子成分之间的差异低于预定值时，确定催化剂（42）的劣化的催化剂劣化判定装置（31） ; 和排气条件量计算装置（31），根据排气条件量计算预定值。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2005048716A Exhaust circulation control device for internal combustion engine 有权
标题翻译：用于内燃机的排气循环控制装置
公开(公告)号：JP2005048716A
公开(公告)日：2005-02-24
申请号：JP2003283288
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： F02M25/07 , F02B47/08 , F02D21/08 , F02D41/00 , F02D41/04 , F02D41/14 , F02D43/00 , F02D45/00
CPC分类号： F02D41/0052 , F02B47/08 , F02D41/0002 , F02D41/0055 , F02D41/027 , F02D41/1488 , F02D2041/0017 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , F02M26/33 , Y02T10/42 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To stabilize engine operation performance by restricting fluctuation of the EGR ratio in changing the excess air ratio. SOLUTION: This device is provided with an exhaust circulation control valve 10 to circulate part of exhaust from an exhaust system of an engine to an intake system, and feedback-control circulation quantity, an intake restricting valve 8 disposed upstream of the intake system connected to an exhaust circulation passage 9, an excess air ratio control means to change suction air quantity through the intake restricting valve 8 in accordance with an excess air ratio changing demand, and a means to limit the excess air ratio in changing it by temporarily prohibiting feedback control to the exhaust circulation quantity of the exhaust circulation control valve or temporarily reducing feedback control gain. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过在改变过量空气比来限制EGR率的波动来稳定发动机运转性能。解决方案：该装置设置有排气循环控制阀10，用于将来自发动机的排气系统的排气的一部分循环到进气系统和反馈控制循环量，设置在进气口上游的进气限制阀8 连接到排气循环通道9的系统，过量空气比控制装置，用于根据过量空气比变化需求改变通过进气限制阀8的吸入空气量;以及用于限制过量空气比暂时改变的装置禁止对排气循环控制阀的排气循环量进行反馈控制，或者暂时减少反馈控制增益。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2005048702A 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：JP2005048702A
公开(公告)日：2005-02-24
申请号：JP2003282975
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： F02M45/04 , F02D41/02 , F02D41/38 , F02D41/40
CPC分类号： F02D41/401 , F02D41/027 , F02D41/0275 , F02D41/403 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To reduce torque fluctuation due to deflection of pilot injection intervals from the optimum value when a target excess air ratio is quickly changed from lean into rich as in dissociation/reduction processes to an NOx trap catalyst.
SOLUTION: When change quantity of the excess air ratio is large, correction is conducted in such a way that the pilot injection interval is changed in accordance with an actual excess air ratio by interpolation computation or the like based on the target excess air ratio and the actual excess air ratio. Since the pilot injection interval is changed in accordance with change of the actual excess air ratio when it is converged to the target excess air ratio, the pilot injection interval can be set proper to correspond to the actual excess air ratio. Action of the pilot injection interval quickly changed in steps between target values before and after change of the excess air ratio can be restricted. Torque fluctuation can therefore be reduced.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：当将目标过剩空气比从解吸/还原过程中的稀薄变成富集时，将减少由先导喷射间隔偏转的扭矩波动从最佳值减小到NOx捕集催化剂。解决方案：当过量空气比的变化量大时，进行校正，使得通过基于目标多余空气的插值计算等，根据实际的过量空气比来改变引燃喷射间隔比例和实际过量空气比。由于引燃喷射间隔根据实际过量空气比在会聚到目标空气过剩率时的变化而变化，所以可以将引燃喷射间隔设定为适合于实际的过量空气比。可以限制在过量空气比的变化之前和之后目标值之间的步骤中的先导喷射间隔的动作的速度变化。因此可以减小转矩波动。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2005048699A Engine exhaust emission control device 审中-公开
标题翻译：发动机排气控制装置
公开(公告)号：JP2005048699A
公开(公告)日：2005-02-24
申请号：JP2003282925
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： F02D9/02 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/04 , F02D41/14 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To precisely control fuel quantity in rich-spike control in a diesel engine provided with a NOx trap catalyst. SOLUTION: On starting the rich-spike control, fuel injection quantity is learned by feedback control to temporary stoichiometry. Error between a target excess air ratio and an actual value is thus corrected, and control can be executed with high precision. Since the feedback control is conducted to the target of stoichiometry, a relatively low-cost oxygen sensor can be applied for feedback of the actual excess air ratio. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：精确地控制设置有NOx捕集催化剂的柴油发动机中的浓油控制中的燃料量。
解决方案：启动丰量控制时，通过反馈控制将临时化学计量学习燃料喷射量。因此，校正了目标过剩空气比与实际值之间的误差，可以高精度地进行控制。由于反馈控制被进行到化学计量的目标，所以可以应用相对低成本的氧传感器来反馈实际的过量空气比。版权所有（C）2005，JPO＆NCIPI

7. 发明专利

JP2005048678A Combustion control device for internal combustion engine 审中-公开
标题翻译：内燃机用燃烧控制装置
公开(公告)号：JP2005048678A
公开(公告)日：2005-02-24
申请号：JP2003282360
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： TODOROKI HIKARI , MIURA MANABU
IPC分类号： F02D45/00 , F01N3/02 , F01N3/08 , F01N3/20 , F01N3/24 , F01N3/28 , F02D37/02 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/22 , F02D41/30 , F02D41/38
CPC分类号： F02D37/02 , F01N3/0821 , F02D41/0245 , F02D41/0285 , F02D41/1441 , F02D41/1446 , F02D41/3076 , F02D2200/0804 , F02D2250/18 , Y02T10/26
摘要： PROBLEM TO BE SOLVED: To achieve a target exhaust temperature matching in regenerating a DPF or releasing the poisoning of a NOx trapping catalyst and quickly cope with the catalyst whose temperature excessively rises. SOLUTION: Main combustion for generating main torque and preliminary combustion prior to the main combustion are performed. Fuel injection is controlled so that the preliminary combustion occurs near a top dead center in a compression stroke and the main combustion is started after the preliminary combustion is completed. On the other hand, the temperature of the catalyst is predicted, and when it exceeds a set value, a fuel injection timing for the main combustion is corrected to an advance side. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了实现DPF再生中的目标排气温度匹配或释放NOx捕集催化剂的中毒，并快速处理温度过度升高的催化剂。
解决方案：执行在主燃烧之前产生主扭矩和预燃的主燃烧。燃料喷射被控制，使得预备燃烧在压缩冲程中靠近上止点发生，并且在预燃烧完成之后开始主燃烧。另一方面，预测催化剂的温度，当超过设定值时，将主燃料的燃料喷射正时校正为提前侧。版权所有（C）2005，JPO＆NCIPI

8. 发明专利

JP2005048673A Exhaust emission control device for engine 审中-公开
标题翻译：用于发动机的排气排放控制装置
公开(公告)号：JP2005048673A
公开(公告)日：2005-02-24
申请号：JP2003282100
申请日：2003-07-29
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 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/24 , F02D41/02 , F02D41/04
CPC分类号： F01N3/0842 , B01D53/9431 , B01D53/9495 , F01N3/0871 , F02D41/0275 , F02D2200/0806 , Y02T10/24
摘要： PROBLEM TO BE SOLVED: To solve a problem that NOx desorption treatment may result in over-and-short desorption by a rich spike control, in a diesel engine provided with an NOx trap catalyst.
SOLUTION: Start timing of the rich spike control is determined based on a NOx deposition amount calculated in lean combustion operation, and a completion timing of the rich spike control is determined based on the NOx deposition amount and an NOx desorption speed. Since an actual NOx amount remaining in the NOx trap catalyst is estimated based on the NOx desorption speed during the rich spike control, the rich spike control is completed at a time point where the NOx amount reaches a target NOx residual amount.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决在具有NOx捕集催化剂的柴油发动机中，NOx解吸附处理可能导致富穗控制的短时解吸的问题。解决方案：基于在稀燃燃烧操作中计算的NOx沉积量来确定浓尖控制的开始定时，并且基于NOx沉积量和NOx解吸速度来确定富尖峰控制的完成定时。由于根据富穗控制时的NOx解吸速度来估计残留在NOx捕集催化剂中的实际NOx量，所以在NOx量达到目标NOx残留量的时间点完成浓穗控制。版权所有（C）2005，JPO＆NCIPI

9. 发明专利

JP2005042661A Combustion control device for internal combustion engine 审中-公开
标题翻译：内燃机用燃烧控制装置
公开(公告)号：JP2005042661A
公开(公告)日：2005-02-17
申请号：JP2003279629
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： ISHIBASHI YASUTAKA , MIURA MANABU
IPC分类号： F02D45/00 , F01N3/02 , F01N3/20 , F01N3/24 , F01N3/28 , F02D41/02 , F02D41/04 , F02D41/38 , F02D41/40
CPC分类号： F02D41/403 , F02D41/027 , F02D41/0275 , F02D41/028 , F02D41/029 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To realize a target exhaust temperature and a target air-fuel ratio corresponding to DPF regeneration and releasing of a NOx trap catalyst from S-poisoning, and to suppress a lowering of a torque, when a DPF is regenerated and the NOx trap catalyst is released from the S-poisoning. SOLUTION: Main combustion to develop a main torque and a preliminary combustion executed prior to the main combustion are performed. Fuel injection is so controlled that the preliminary combustion is performed near a compression top dead center and the main combustion is started after the preliminary combustion is finished. On the other hand, a target air amount to an engine is increased and corrected by a torque correction value, and a target fuel injection amount is calculated from an actual air amount and the target air-fuel ratio. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了实现对应于DPF再生和NOx捕集催化剂从S中毒释放的目标排气温度和目标空燃比，并且为了抑制转矩降低，当DPF为再生，并且NOx捕集催化剂从S中毒释放。解决方案：执行主燃烧以在主燃烧之前执行的主扭矩和初步燃烧。燃料喷射受到如此控制，使得在压缩上止点附近进行预燃，并且在预燃结束后开始主燃烧。另一方面，通过扭矩校正值来增加和校正发动机的目标空气量，并根据实际空气量和目标空燃比计算目标燃料喷射量。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2004308455A Diagnostic device of exhaust gas post-treatment device for internal combustion engine 有权
公开(公告)号：JP2004308455A
公开(公告)日：2004-11-04
申请号：JP2003099656
申请日：2003-04-02
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： SHIRAKAWA AKIRA , MIURA MANABU , YASUHARA KOSUKE
IPC分类号： F02D45/00 , F01N3/08 , F01N3/20 , F01N3/28 , F01N11/00 , F02B3/06 , F02B37/00 , F02D41/02 , F02D41/14 , F02D41/22 , F02M25/07 , F02M63/02
CPC分类号： F01N3/0842 , F01N3/0814 , F01N11/00 , F01N11/002 , F01N11/007 , F01N13/009 , F02B3/06 , F02B29/0406 , F02B37/00 , F02B2275/14 , F02D41/0275 , F02D41/1441 , F02D41/1475 , F02D41/1495 , F02D41/221 , F02M26/05 , F02M26/10 , F02M26/15 , F02M26/46 , F02M63/0225 , Y02T10/24 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To precisely diagnose deterioration of NOx trap catalyst.
SOLUTION: Deterioration of catalyst is diagnosed based on change of air-fuel ratio (or HC amount) on a catalyst outlet side for change of air-fuel ratio (or HC amount) on a catalyst inlet side when performing rich spike operation as first deterioration diagnosis. When it is determined that catalyst is deteriorated by the first deterioration diagnosis, operation is shifted to theoretical air-fuel ratio operation to feedback-control air-fuel ratio on the catalyst outlet side in order to diagnose deterioration of catalyst finally based on inversion cycle of feedback amount at this time.
COPYRIGHT: (C)2005,JPO&NCIPI

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式