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. 发明申请

WO2016017125A1 ABNORMALITY DETERMINATION DEVICE FOR A NOX SENSOR IN A NOX STORAGE REDUCTION CATALYST USING AIR-FUEL RATIO CONTROL 审中-公开
标题翻译：使用空气 - 燃料比率控制的NOX储存还原催化剂中的NOX传感器的异常确定装置
公开(公告)号：WO2016017125A1
公开(公告)日：2016-02-04
申请号：PCT/JP2015/003705
申请日：2015-07-23
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SAITOH, Hirotaka , KIDOKORO, Toru , IWAZAKI, Yasushi
IPC分类号： F02D41/14 , F02D41/22 , F01N3/20
CPC分类号： F02D41/222 , F01N3/0814 , F01N3/0842 , F01N3/2073 , F01N11/00 , F01N11/007 , F01N2550/02 , F01N2560/025 , F01N2560/026 , F01N2610/03 , F02D41/1454 , F02D41/146 , Y02T10/40 , Y02T10/47
摘要： An improvement in the accuracy of abnormality determination of a NOx sensor, which is disposed at the downstream side of a NOx storage reduction catalyst, is attained. An abnormality determination of the NOx sensor is made based on an output integrated quantity which is an integrated quantity of detected values of the NOx sensor in a predetermined detection time period which includes at least a first detection time period of the NOx sensor corresponding to a time period in which predetermined air-fuel ratio control to enable ammonia to flow out from the NOx catalyst to the downstream side thereof is executed. In this case, by deciding a predetermined execution parameter with respect to the predetermined air-fuel ratio control based on the degree of deterioration of the NOx catalyst, and by further executing the predetermined air-fuel ratio control, an amount of ammonia generated in the NOx catalyst is adjusted.
摘要翻译：实现了设置在NOx储存还原催化剂的下游侧的NOx传感器的异常判定精度的提高。 NOx传感器的异常判定基于作为在预定检测时间段内的NOx传感器的检测值的积分量的输出积分量，该输出积分量至少包括与时间相对应的NOx传感器的第一检测时间段执行使氨从NOx催化剂流出到其下游侧的规定的空燃比控制的期间。在这种情况下，通过基于NOx催化剂的劣化程度来决定相对于规定的空燃比控制的规定的执行参数，通过进一步执行规定的空燃比控制，生成的氨的量调节NOx催化剂。

2. 发明授权

EP3037636B1 DETERIORATION DIAGNOSIS APPARATUS FOR THE EXHAUST GAS PURIFICATION APPARATUS 失效
标题翻译：排气净化装置的故障诊断装置
公开(公告)号：EP3037636B1
公开(公告)日：2018-01-31
申请号：EP15202326.3
申请日：2015-12-23
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： SAITOH, Hirotaka , HAGIWARA, Koji , FUJIWARA, Takahiko , KIDOKORO, Toru , IWAZAKI, Yasushi
IPC分类号： F01N3/20 , F01N11/00
CPC分类号： F01N3/0842 , F01N3/0814 , F01N3/0864 , F01N3/0871 , F01N3/2066 , F01N3/2073 , F01N3/208 , F01N11/007 , F01N13/009 , F01N2550/02 , F01N2900/0416 , F01N2900/1402 , F01N2900/1622 , F01N2900/1624 , F02D35/0015 , F02D41/0235 , F02D41/027 , F02D41/0275 , F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D41/405 , F02D2200/0816 , Y02T10/22 , Y02T10/24 , Y02T10/47
摘要： Deterioration of a selective catalytic reduction (SCR) catalyst (5) can be diagnosed with sufficient accuracy, by making use of a sensor (7) for measuring an air fuel ratio of exhaust gas flowing into an exhaust gas purification apparatus, which is equipped with the SCR catalyst (5), and a further sensor (8) for measuring an air fuel ratio of exhaust gas flowing out from the exhaust gas purification apparatus. In an exhaust gas purification apparatus for the exhaust gas purification apparatus, in a time period in which inducement-processing is carried out which is to induce a water gas shift reaction in a catalyst disposed at the upstream side of the SCR catalyst (5), by changing an air fuel ratio of exhaust gas discharged from an internal combustion engine (1) from a lean air fuel ratio into a predetermined rich air fuel ratio, an air fuel ratio of exhaust gas flowing into the SCR catalyst (5) and an air fuel ratio of exhaust gas flowing out from the SCR catalyst (5) are measured by said air fuel ratio sensors (7, 8), respectively, and deterioration of the SCR catalyst (5) is diagnosed based on a difference between the measured values of these sensors, wherein the inducement-processing is carried out when the amount of NH 3 adsorption in the SCR catalyst (5) is equal to or less than a predetermined amount.

3. 发明公开

EP3208437A1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
标题翻译：内燃机排气控制装置
公开(公告)号：EP3208437A1
公开(公告)日：2017-08-23
申请号：EP17156099.8
申请日：2017-02-14
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SAITOH, Hirotaka , TSUKAMOTO, Yoshihisa , HAGIMOTO, Yuriko , MATSUO, Junichi , NOTAKE, Yasumasa
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N3/2066 , F01N2610/02 , F01N2610/14 , F01N2610/1406 , F01N2610/144 , F01N2610/1493 , F01N2900/08 , F01N2900/1404 , Y02T10/24
摘要： An exhaust gas control apparatus for an internal combustion engine includes an addition valve (42), a tank (41), a urea water passage (43), a pump (44), a nitrogen oxides catalyst (31), and an electronic control unit (10). The electronic control unit (10) is configured to: (i) control the pump (44), as a first control, such that a specified amount of the urea water stored in the addition valve (42) and the urea water passage (43) is returned to the tank (41) after the internal combustion engine is stopped; (ii) control the pump (44), as a second control, such that the specified amount or more of the urea water in the tank (41) is discharged from the tank (41) to the urea water passage (43) after the first control is executed; and (iii) control the pump (44), as a third control, such that all the urea water stored in the addition valve (42) and the urea water passage (43) is returned to the tank after the second control is executed.
摘要翻译：一种内燃机的排气控制装置，其特征在于，具备：添加阀（42），罐（41），尿素水路（43），泵（44），氮氧化物催化剂（31），电子控制装置单元（10）。电子控制单元（10）构成为：作为第一控制而控制泵（44），使得在添加阀（42）和尿素水路径（43）中储存的规定量的尿素水）在内燃机停止后返回到油箱（41）中; （ii）作为第二控制，控制泵（44），使得在箱（41）内的规定量以上的尿素水从箱（41）向尿素水通路（43）首先执行控制; （iii）作为第三控制而控制泵（44），使得在执行第二控制之后，储存在添加阀（42）和尿素水通路（43）中的所有尿素水都返回到罐中。

5. 发明公开

EP3115583A1 DETERIORATION DIAGNOSIS APPARATUS FOR AN EXHAUST GAS PURIFICATION APPARATUS 有权
标题翻译： ÄUNG GS UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG
公开(公告)号：EP3115583A1
公开(公告)日：2017-01-11
申请号：EP16178268.5
申请日：2016-07-06
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： HAGIWARA, Koji , KIDOKORO, Toru , IWAZAKI, Yasushi , SAITOH, Hirotaka , MIYOSHI, Yuji
IPC分类号： F02D41/02 , F01N3/10 , F01N11/00 , F02D41/14 , F02D41/40 , F02D41/32 , F02D33/02
摘要： Diagnosing deterioration of an SCR catalyst (5) using air-fuel ratio sensors (7, 8). A deterioration diagnosis apparatus for an exhaust gas purification apparatus performs an induction process wherein reducing agent is supplied to a hydrogen production catalyst (4), taking account of the degree of deterioration of the hydrogen production catalyst, when an internal combustion engine is operating at a lean air-fuel ratio, measures the air-fuel ratio of the exhaust gas flowing into the SCR catalyst (5) and the air-fuel ratio of the exhaust gas flowing out of the SCR catalyst (5) by the air-fuel ratio sensors during the period through which the induction process is performed, and diagnoses deterioration of the SCR catalyst based on the difference between the air-fuel ratios thus measured.
摘要翻译：使用空燃比传感器（7,8）诊断SCR催化剂（5）的劣化。废气净化装置的劣化诊断装置进行感应处理，其中，当内燃机工作在氢气生成催化剂（4）时，考虑到氢气生成催化剂的劣化程度，向氢气生成催化剂（4）供给还原剂测量流入SCR催化剂（5）的废气的空燃比和通过空燃比传感器从SCR催化剂（5）流出的废气的空燃比在进行感应处理的期间，根据这样测定的空燃比的差异，诊断SCR催化剂的劣化。

6. 发明公开

EP3056702A1 DETERIORATION DIAGNOSIS DEVICE FOR AN EXHAUST GAS PURIFICATION APPARATUS 有权
标题翻译：排气净化装置的衰竭诊断装置
公开(公告)号：EP3056702A1
公开(公告)日：2016-08-17
申请号：EP16155486.0
申请日：2016-02-12
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： HAGIWARA, Koji , SAITOH, Hirotaka , IWAZAKI, Yasushi
IPC分类号： F01N3/08 , F01N3/10 , F01N3/20 , F02D41/02 , F01N11/00 , F01N13/00
CPC分类号： F01N11/007 , B01D53/9477 , B01D53/9495 , F01N3/0807 , F01N3/101 , F01N3/2066 , F01N3/2073 , F01N11/00 , F01N13/009 , F01N2430/06 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1624 , F02D41/0235 , F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D2041/147 , F02D2200/0816 , Y02T10/22 , Y02T10/47
摘要： A deterioration diagnosis device for an exhaust gas purification apparatus which performs inducement processing when the internal combustion engine (1) is operated at a lean air fuel ratio, measures, by means of air fuel ratio sensors, the air fuel ratio of exhaust gas flowing into the SCR catalyst (6) and the air fuel ratio of exhaust gas flowing out from the SCR catalyst (6) during a period while the inducement processing is performed, and diagnoses deterioration of the SCR catalyst (6) based on a difference between the measured values of these sensors, wherein an amount of hydrogen produced by each of a three-way catalyst and an NSR catalyst (5) is estimated based on the deterioration degree thereof, and an air fuel ratio of exhaust gas discharged from the internal combustion engine is feedback-controlled so that the air fuel ratio of the exhaust gas flowing into one of the three-way catalyst and the NSR catalyst (5) in which the hydrogen production amount thus estimated is larger than that in the other becomes a target value.
摘要翻译：一种废气净化装置的劣化诊断装置，其在内燃机（1）以稀空燃比运转时进行诱导处理，通过空燃比传感器测量流入的排气的空燃比在进行所述诱导处理的期间内，在所述SCR催化剂（6）和从所述SCR催化剂（6）流出的排气的空燃比之间，根据所述测定值这些传感器的值，其中基于其劣化程度估计由三元催化剂和NSR催化剂（5）中的每一个产生的氢的量，并且从内燃机排出的排气的空燃比是反馈控制，使得流入三元催化剂和其中估计的氢产生量较大的NSR催化剂（5）之一的排气的空燃比大于t 在另一方面成为目标价值。

7. 发明授权

EP3115583B1 DETERIORATION DIAGNOSIS APPARATUS FOR AN EXHAUST GAS PURIFICATION APPARATUS 有权
公开(公告)号：EP3115583B1
公开(公告)日：2020-05-06
申请号：EP16178268.5
申请日：2016-07-06
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： HAGIWARA, Koji , KIDOKORO, Toru , IWAZAKI, Yasushi , SAITOH, Hirotaka , MIYOSHI, Yuji
IPC分类号： F02D41/02 , F01N3/10 , F01N11/00 , F02D41/14 , F01N3/08 , F01N3/20 , F02D41/40 , F02D41/32 , F02D33/02

8. 发明公开

EP2636879A1 FAULT DIAGNOSIS DEVICE FOR EGR SYSTEM 失效
标题翻译：故障诊断装置的燃气回收系统
公开(公告)号：EP2636879A1
公开(公告)日：2013-09-11
申请号：EP11859654.3
申请日：2011-12-01
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SAITOH, Hirotaka , NAKAMURA, Yoshitaka , KIDOKORO, Toru
IPC分类号： F02M25/07
CPC分类号： F02M26/49 , F01P2025/06 , F02B29/04 , F02D41/0065 , F02M26/05 , F02M26/06 , F02M26/15 , F02M26/47 , Y02T10/121
摘要： In the engine including an MPL-EGR system having an HPL-EGR mechanism 6 and an LPL-EGR mechanism 7, a pressure difference between upstream side pressure and downstream side pressure of a low pressure EGR cooler 73 provided in the LPL-EGR mechanism 7 is detected by a pressure difference sensor 89. When an actual pressure difference value detected is higher than a reference pressure difference value in a state where no blocking occurs in the LPL-EGR mechanism 7, and the deviation amount therebetween reaches a predetermined amount, it is determined that the blocking occurs in the inside of the low pressure EGR cooler 73. In contrast, when the actual pressure difference value detected is lower than the reference pressure difference value, and the deviation amount therebetween reaches a predetermined amount, it is determined that the blocking occurs in the inside of the pipe members 74 and 75 except the low pressure EGR cooler 73.

9. 发明授权

EP3208437B1 EXHAUST GAS CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：EP3208437B1
公开(公告)日：2018-08-29
申请号：EP17156099.8
申请日：2017-02-14
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SAITOH, Hirotaka , TSUKAMOTO, Yoshihisa , HAGIMOTO, Yuriko , MATSUO, Junichi , NOTAKE, Yasumasa
IPC分类号： F01N3/20
CPC分类号： F01N3/208 , F01N3/2066 , F01N2610/02 , F01N2610/14 , F01N2610/1406 , F01N2610/144 , F01N2610/1493 , F01N2900/08 , F01N2900/1404 , Y02T10/24
摘要： An exhaust gas control apparatus for an internal combustion engine includes an addition valve (42), a tank (41), a urea water passage (43), a pump (44), a nitrogen oxides catalyst (31), and an electronic control unit (10). The electronic control unit (10) is configured to: (i) control the pump (44), as a first control, such that a specified amount of the urea water stored in the addition valve (42) and the urea water passage (43) is returned to the tank (41) after the internal combustion engine is stopped; (ii) control the pump (44), as a second control, such that the specified amount or more of the urea water in the tank (41) is discharged from the tank (41) to the urea water passage (43) after the first control is executed; and (iii) control the pump (44), as a third control, such that all the urea water stored in the addition valve (42) and the urea water passage (43) is returned to the tank after the second control is executed.

10. 发明公开

EP3361063A1 INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE 有权
公开(公告)号：EP3361063A1
公开(公告)日：2018-08-15
申请号：EP18156153.1
申请日：2018-02-09
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： SAITOH, Hirotaka , NISHIOKA, Hiromasa
IPC分类号： F01N3/20 , F01N11/00
摘要： An internal combustion engine (1) includes an electronic control unit (10) configured to supply additives to an exhaust gas cleaning catalyst (3, 30) having a temperature not more than a predetermined temperature. The electronic control unit (10) executes abnormality diagnosis of the exhaust gas cleaning catalyst (3, 30) based on ability to clean exhaust gas of the exhaust gas cleaning catalyst (3,30). When preforming abnormality diagnosis of the exhaust gas cleaning catalyst (3, 30) at a temperature not more than the predetermined temperature, the electronic control unit (10) reduces the amount of the additives to be supplied to the exhaust gas cleaning catalyst (3, 30) to less than the amount thereof when abnormality diagnosis of the exhaust gas cleaning catalyst (3, 30) at a temperature not more than the predetermined temperature is not executed.

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