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

JP2014231761A 内燃機関の排気浄化装置有权
标题翻译：内燃机排气净化装置
公开(公告)号：JP2014231761A
公开(公告)日：2014-12-11
申请号：JP2013112177
申请日：2013-05-28
申请人：トヨタ自動車株式会社 , Toyota Motor Corp
发明人： TAKADA KEI , KAMOSHITA SHINJI , OHASHI NOBUMOTO , NAKAYAMA SHIGEKI , KENJO AKIRA , MATSUO JUNICHI
IPC分类号： F01N3/08 , B01D53/94 , F01N3/02 , F01N3/20 , F01N3/24 , F01N3/28 , F02D43/00 , F02D45/00
CPC分类号： F02D21/08 , F01N3/035 , F01N3/106 , F01N3/2066 , F02D41/0052 , F02D41/027 , F02D2200/0802 , F02M26/15 , Y02T10/47
摘要：【課題】内燃機関の排気通路に、酸化触媒と、アンモニアを用いて排気内の窒素酸化物を選択還元するSCR触媒と、を直列に備える内燃機関の排気浄化装置において、酸化触媒にHC被毒が発生した場合に、大気へのNOxの放出を抑制しながら酸化触媒のHC被毒を回復する。【解決手段】酸化触媒のHC被毒量を取得する酸化触媒被毒量取得部と、混合気の酸素濃度を増大させる酸素濃度増大部と、該酸化触媒のHC被毒を回復させる酸化触媒被毒回復部と、を備え、酸化触媒のHC被毒量がHC被毒による該酸化触媒の酸化能力の低下によって該酸化触媒から流出する排気内のNOに対するNO2の比率が所定の閾比率未満になる量である場合は、SCR触媒の温度が活性温度以上のときに、該温度が該活性温度未満のときよりも混合気の酸素濃度を増大させるようにした。【選択図】図2
摘要翻译：要解决的问题：在具有氧化催化剂和SCR的内燃机的排气净化装置中，在发生HC氧化催化剂的HC中毒时，抑制氧化催化剂的HC中毒，同时抑制NOx的排放催化剂，使用氨选择性还原排气中的氮氧化物，串联在内燃机的排气通道上。解决方案：一种用于内燃机的排气净化装置，包括：氧化催化剂中和量获取部，其获取HC中毒量氧化催化剂; 氧浓度增加部，其增加空气 - 燃料混合物中的氧浓度; 以及从HC中毒中回收氧化催化剂的氧化催化剂中毒回收部。在氧化催化剂的HC中毒量达到由于HC中毒引起的氧化催化剂的氧化能力降低导致从氧化催化剂流出的排气的NO与NOO的比例低于预定阈值的程度的情况下比例，当SCR催化剂的温度不低于活化温度时，空气 - 燃料混合物中的氧浓度在SCR催化剂的温度低于活化温度时比其大。

2. 发明专利

JP2010209753A Operational object parameter adapting device and method for internal combustion engine 有权
标题翻译：操作对象参数适配装置和内燃机的方法
公开(公告)号：JP2010209753A
公开(公告)日：2010-09-24
申请号：JP2009055383
申请日：2009-03-09
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TAKASU YUSUKE , NAKAYAMA SHIGEKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To appropriately calculate the ratings of a plurality of output evaluation objects to be evaluated during the operation of an internal combustion engine, and to adjust a variation of the rating of each of them with [one operation].
SOLUTION: The ratings xi of the plurality of output evaluation objects are calculated in accordance with an equation [xi=(di-ti)/bi], using a target value ti, a measurement value di and a reference value bi. In this equation, the target value ti is on a numerator side and so the ratings xi can be appropriately calculated even when the target value ti is nearly zero or zero. The reference value bi is set and updated to be an average value for [an absolute value for a variation of the measurement value di] obtained for every [one operation]. Thus, a variation of the rating xi of each of the plurality of output evaluation objects with [one operation] becomes adjusted to be nearly [1]. Namely, the variation of the rating xi of one of the plurality of output evaluation objects with [one operation] is adjusted to be almost equal to that of the other.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了适当地计算在内燃机的操作期间要评估的多个输出评估对象的等级，并且通过[一个操作]来调整它们中的每个的等级的变化。解决方案：使用目标值ti，测量值di和参考值bi，根据等式[xi =（di-ti）/ bi]来计算多个输出评估对象的等级xi。在该等式中，目标值ti在分子侧，因此即使目标值ti几乎为零或零，也可以适当地计算额定值xi。参考值bi被设置和更新为每[一个操作]获得的[用于测量值di的变化的绝对值]的平均值。因此，使用[一个操作]的多个输出评估对象中的每一个的评级xi的变化被调整为接近[1]。也就是说，将[一个操作]的多个输出评估对象之一的等级xi的变化调整为几乎等于另一个。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2010043549A Air fuel ratio control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：JP2010043549A
公开(公告)日：2010-02-25
申请号：JP2008206161
申请日：2008-08-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： SHIMADA MASANORI , NAKAYAMA SHIGEKI
IPC分类号： F02D41/14 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To improve response and convergence of an air fuel ratio and secure performance in removing sulfur components of a NOx reduction catalyst.
SOLUTION: An air fuel ratio control device 100 includes a catalyst unit 8 purifying exhaust gas and recovering exhaust gas purification capacity, an air fuel ratio sensor 9 detecting actual air fuel ratio of exhaust gas, and an ECU 12 converging air fuel ratio of exhaust gas flowing in the catalyst unit 8 to a target air fuel ratio by proportional integral control when exhaust gas purification capacity of the catalyst unit 8 is recovered. The ECU 12 gradually transfers from a process for calculating a proportional term based on a rich target air fuel ratio rTrg lower than a final target air fuel ratio Trg when the value of actual air fuel ratio is not lower than stoichiometric value ST, and calculating the proportional term based on the rich target air fuel ratio rTrg when the value of actual air fuel ratio is lower than the final target air fuel ratio Trg, to a process calculating the proportional term based on the final target air fuel ratio Trg so as to inhibit erratic fluctuation of the actual air fuel ratio.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：改善空燃比的响应和收敛性，并确保除去NOx还原催化剂的硫成分的性能。解决方案：空燃比控制装置100包括净化排气并回收废气净化能力的催化单元8，检测排气的实际空燃比的空燃比传感器9和收集空燃比的ECU12 在催化剂单元8的废气净化能力恢复时，通过比例积分控制在催化剂单元8中流动的废气达到目标空燃比。当实际空燃比值不低于化学计量值ST时，ECU 12基于比最终目标空燃比Trg低的浓空燃比rTrg，从计算比例项的处理逐渐转移，当实际空燃比低于最终目标空燃比Trg时，基于富目标空燃比rTrg的比例项，基于最终目标空燃比Trg计算比例项，以抑制实际空燃比波动不稳定。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009299507A Fuel injection control system for internal combustion engine 审中-公开
标题翻译：内燃机燃油喷射控制系统
公开(公告)号：JP2009299507A
公开(公告)日：2009-12-24
申请号：JP2008152106
申请日：2008-06-10
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： IBUKI TAKU , MATSUNAGA AKIO , NAKAYAMA SHIGEKI
IPC分类号： F02D41/38 , F02D41/40 , F02D45/00
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To suppress the degree of combustion noise and/or the generation amount of smoke during transitional operation of an internal combustion engine, within an allowable range as much as possible.
SOLUTION: This fuel injection control system for an internal combustion engine estimates the degree of combustion noise and the generation amount of smoke, which occur under an actual cylinder oxygen concentration, and the degree of combustion noise and the generation amount of smoke, which occur under a target cylinder oxygen concentration. When the difference between them exceeds an allowable value, an actual fuel injection pressure is changed.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：尽可能地将内燃机的过渡操作期间的燃烧噪声和/或烟的产生量抑制在容许范围内。解决方案：用于内燃机的燃料喷射控制系统估计在实际气缸氧浓度下发生的燃烧噪声的程度和烟的产生量，以及燃烧噪声的程度和烟的产生量，其发生在目标气缸氧浓度下。当它们之间的差超过允许值时，改变实际的燃料喷射压力。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2009156034A Fuel injection control system for internal combustion engine 有权
标题翻译：内燃机燃油喷射控制系统
公开(公告)号：JP2009156034A
公开(公告)日：2009-07-16
申请号：JP2007331838
申请日：2007-12-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： IBUKI TAKU , MATSUNAGA AKIO , NAKAYAMA SHIGEKI
IPC分类号： F02D41/38 , F02D41/10 , F02D41/40 , F02D45/00
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection control system for a compression ignition type internal combustion engine where fuel is injected several split times for keeping the degree of combustion noise in an allowable range to a maximum during transient operation.
SOLUTION: The fuel injection control system for the internal combustion engine predicts the degree of combustion noise (an actual combustion noise predicted value) cntemp which can be generated under an actual cylinder oxygen concentration roxc (S104), predicts the degree of combustion noise (target combustion noise) cntrg which can be generated under a target oxygen concentration (S106), specifies a correlation between a fuel injection parameter and the degree of combustion noise under the actual cylinder oxygen concentration roxc when a difference therebetween exceeds an allowable value, and corrects the fuel injection parameter according to the correlation.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于压燃式内燃机的燃料喷射控制系统，其中燃料被喷射几次，用于在暂时操作期间将燃烧噪声的程度保持在最大允许范围内。解决方案：内燃机的燃料喷射控制系统预测在实际气缸氧浓度下可产生的燃烧噪声（实际燃烧噪声预测值）cntemp（S104），预测燃烧程度可以在目标氧气浓度下产生的噪声（目标燃烧噪声）cntrg（S106）指定了当实际气缸氧浓度roxc之间的差异超过允许值时燃料喷射参数与燃烧噪声之间的相关性，并根据相关性来校正燃油喷射参数。版权所有（C）2009，JPO＆INPIT

6. 发明专利

JP2009138688A Device for estimating amount of soot generated in internal combustion engine 审中-公开
标题翻译：用于估计在内燃机中产生的烟量的装置
公开(公告)号：JP2009138688A
公开(公告)日：2009-06-25
申请号：JP2007317860
申请日：2007-12-10
申请人： Toyota Central R&D Labs Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： ONISHI TOMOMI , NAKAYAMA SHIGEKI , TAKATORI YOSHIKI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a device for estimating the amount of soot generated, accurately estimating the amount of soot generated in consideration of soot oxidation reaction under a comparatively low temperature atmosphere. SOLUTION: In this device, an oxidization rate of formed soot is calculated in consideration of, as the soot oxidation reaction, reaction (C+O 2 ) of soot oxidized by collision of stabilized carbon atoms out of a number of carbon atoms composing soot with an oxidant (O 2 , O), reaction (C radical+O 2 ) of soot oxidized by collision of carbon atoms having radical portions, out of a number of carbon atoms composing soot with the oxidant (O 2 , O), and reaction (C+OH) of soot oxidized by collision of the stabilized carbon atoms out of a number of carbon atoms composing soot with a hydroxyl radical (OH). The amount of soot generated is estimated based on the oxidization rate of soot. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于估计产生的烟灰量的装置，准确估计在较低温度的气氛下考虑烟灰氧化反应产生的烟灰量。解决方案：在该装置中，考虑到作为烟灰氧化反应，通过稳定的碳原子的碰撞氧化的烟灰的反应（C + O 2 ）来计算形成的煤烟的氧化速率在与氧化剂（O SB 2，O）组成烟灰的多个碳原子中，通过碳原子碰撞氧化的烟灰的反应（C自由基+ O SBC 2，在氧化剂（O 2 O）构成烟灰的多个碳原子中的自由基部分和通过稳定的碳原子碰撞而氧化的烟灰的反应（C + OH）的碳原子与羟基（OH）组成烟灰。基于烟灰的氧化速率来估计生成的烟灰量。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008298023A Egr system for internal combustion engine 有权
标题翻译：内燃机EGR系统
公开(公告)号：JP2008298023A
公开(公告)日：2008-12-11
申请号：JP2007147324
申请日：2007-06-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MATSUNAGA AKIO , NAKAYAMA SHIGEKI , ONISHI TOMOMI , IEMURA AKIYUKI
IPC分类号： F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide a technique for suppressing poor combustion and emission deterioration in a transition period in which an operating status of an internal combustion engine changes in an EGR system having an exhaust emission purification catalyst in a circulation path of EGR gas. SOLUTION: The EGR system includes: an EGR means for returning a part of exhaust emission from the internal combustion engine thereto as EGR gas; an exhaust emission purification catalyst disposed in the circulation path of the EGR gas returned to the internal combustion engine by the EGR means and having an oxidizing capability; a catalyst temperature obtaining means for obtaining the temperature of the exhaust emission purification catalyst; and a correction means for correcting an amount of the EGR gas returned to the internal combustion engine by the EGR means to become less than a standard amount of the EGR gas determined according to an operating status of an internal combustion engine, if a catalyst transient condition is met in which a temperature obtained by the catalyst temperature obtaining means is higher than a temperature of a standard exhaust emission purification catalyst determined according to the operating status of an internal combustion engine, and at the same time, if a catalyst activity condition is met in which the temperature obtained by the catalyst temperature obtaining means is higher than a temperature of a prescribed activation temperature of the exhaust emission purification catalyst. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种在EGR循环路径中具有排气净化催化剂的EGR系统中内燃机的运转状态变化的过渡期间抑制不良燃烧和排放恶化的技术加油站。解决方案：EGR系统包括：EGR装置，用于将来自内燃机的排气的一部分返回到其中作为EGR气体; 排气净化催化剂，其设置在通过EGR装置返回到内燃机的EGR气体的循环路径中并具有氧化能力; 用于获得排气净化催化剂的温度的催化剂温度获取装置; 以及校正装置，用于将由EGR装置返回到内燃机的EGR气体的量校正为小于根据内燃机的运行状态确定的EGR气体的标准量，如果催化剂过渡条件满足通过催化剂温度获得装置获得的温度高于根据内燃机的运行状态确定的标准排气净化催化剂的温度的情况，同时如果满足催化剂活性条件其中由催化剂温度获得装置获得的温度高于废气排放净化催化剂的规定活化温度的温度。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2008195109A Control system for compression ignition type internal combustion engine 审中-公开
标题翻译：压缩点火式内燃机控制系统
公开(公告)号：JP2008195109A
公开(公告)日：2008-08-28
申请号：JP2007029626
申请日：2007-02-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KANEKO TOMOHIRO , NAKAYAMA SHIGEKI , IBUKI TAKU , FUJIWARA KIYOSHI , KOYAMA TAKASHI
IPC分类号： B60W10/04 , B60W10/06 , B60W10/10 , B60W10/101 , F02B1/12 , F02D21/08 , F02D29/00 , F02D41/02 , F02D41/12 , F16H61/02 , F16H63/50
摘要： PROBLEM TO BE SOLVED: To provide a control system for a compression ignition type internal combustion engine introducing a predetermined quantity or more of EGR gas to a cylinder for premixing combustion, to shift the internal combustion engine quickly and suitably from a fuel-cut operation state to a premixed combustion operation state. SOLUTION: When it is predicted that engine operation conditions are shifted from a fuel-cut operation region to a premixing combustion operation region, fuel-cut is released while the engine operation conditions are belonging to the fuel-cut operation region, so that oxygen concentration in a cylinder can be decreased to concentration enough to suppress pre-ignition by the time when the internal combustion engine starts a premixing combustion operation. Furthermore, the transmission gear ratio of an automatic transmission is changed to an acceleration side when the fuel-cut is released, so that it is possible to minimize deterioration in fuel economy due to fuel-cut release. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于将预定量或更多的EGR气体引入到用于预混合燃烧的气缸的压缩点火式内燃机的控制系统，以便使内燃机快速且适当地从燃料 - 切割操作状态到预混合燃烧操作状态。解决方案：当预测发动机操作条件从燃料切割操作区域转移到预混合燃烧操作区域时，在发动机操作条件属于燃料切断操作区域的同时释放燃料切断，因此当内燃机开始预混合燃烧操作时，气缸中的氧浓度可以降低到足以抑制预点火的浓度。此外，当燃料切断被释放时，自动变速器的变速比变化到加速侧，从而可以最小化由燃料切断释放引起的燃料经济性的劣化。版权所有（C）2008，JPO＆INPIT

9. 发明专利

JP2008175139A Exhaust gas recirculation system of internal combustion engine 有权
标题翻译：内燃机排气回送系统
公开(公告)号：JP2008175139A
公开(公告)日：2008-07-31
申请号：JP2007009422
申请日：2007-01-18
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： MURATA HIROKI , NAGAE MASAHIRO , SHIMIZU HAJIME , NAKAYAMA SHIGEKI , ONISHI TOMOMI
IPC分类号： F02M25/07
CPC分类号： F02D41/0052 , F02D9/04 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/24 , F02M26/53 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To properly control a suction air amount during the transient operation of an internal combustion engine in an EGR system in which both a high-pressure EGR and a low-pressure EGR are used. SOLUTION: This exhaust gas recirculation system comprises a turbocharger having a compressor in a suction passage and a turbine in an exhaust passage, a high-pressure EGR means for performing EGR through a high-pressure EGR passage connecting the exhaust passage on the upstream side of the turbine to the suction passage on the downstream side of the compressor, a low-pressure EGR means for performing EGR through a low-pressure EGR passage connecting the exhaust passage on the downstream side of the turbine to the suction passage on the upstream side of the compressor, a high-pressure EGR valve installed in the high-pressure EGR passage, and a low-pressure EGR valve installed in the low-pressure EGR passage. During the transient operation of the internal combustion engine, first the opening of the high-pressure EGR valve is controlled by feedback. After the opening of the high-pressure EGR valve is fully closed, the opening of the low-pressure EGR valve is controlled by feedback. The suction air amount is quickly controlled to a target suction air amount without causing hunching. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了在使用高压EGR和低压EGR的EGR系统中对内燃机的过渡操作期间适当地控制吸入空气量。解决方案：该排气再循环系统包括在吸入通道中具有压缩机的涡轮增压器和排气通道中的涡轮机;高压EGR装置，用于通过连接排气通道上的排气通道的高压EGR通道进行EGR 涡轮的上游侧到压缩机的下游侧的吸入通路，低压EGR装置，通过将涡轮下游侧的排气通路与吸入通路连接的低压EGR通路进行EGR 压缩机的上游侧，安装在高压EGR通路中的高压EGR阀和安装在低压EGR通路中的低压EGR阀。在内燃机的瞬时运转中，首先通过反馈来控制高压EGR阀的开度。在高压EGR阀的打开完全关闭之后，通过反馈来控制低压EGR阀的打开。吸入空气量迅速地控制到目标吸入空气量而不会产生捶打。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2008082244A Fuel injection control device for internal combustion engine 有权
标题翻译：用于内燃机的燃油喷射控制装置
公开(公告)号：JP2008082244A
公开(公告)日：2008-04-10
申请号：JP2006262936
申请日：2006-09-27
申请人： Nippon Soken Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所
发明人： HAYASHI TOMOHIRO , ITO MASAHARU , NAKAYAMA SHIGEKI , IBUKI TAKU , FUKUMA TAKAO
IPC分类号： F02D41/38 , F02D41/40 , F02D45/00
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide technology enabling more accurate control of combustion noise in a device controlling combustion noise of an internal combustion engine by performing pilot injection. SOLUTION: This device is provided with a noise detection means S202 estimating or detecting combustion noise of the internal combustion engine; a fuel injection means capable of performing pilot injection prior to main injection; a combustion state detection means S204 estimating or detecting an actual combustion state of fuel injected by the fuel injection means; and control means S205, S206, S207 operating fuel injection parameters relating to main injection and/or pilot injection by the fuel injection means based on the combustion state of fuel detected by the combustion state detection means to make combustion noise detected by the noise detection means consistent with predetermined target noise. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供通过执行引燃喷射来控制内燃机的燃烧噪声的装置中的燃烧噪声更准确的控制技术。解决方案：该装置设置有估计或检测内燃机的燃烧噪声的噪声检测装置S202; 燃料喷射装置，能够在主喷射之前执行先导喷射; 燃烧状态检测单元S204，估计或检测由燃料喷射单元喷射的燃料的实际燃烧状态; 并且控制装置S205，S206，S207根据由燃烧状态检测装置检测到的燃料的燃烧状态，操作与燃料喷射装置的主喷射和/或引燃喷射有关的燃料喷射参数，以使由噪声检测装置检测到的燃烧噪声与预定的目标噪声一致。版权所有（C）2008，JPO＆INPIT

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