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公开(公告)号：JP2013227887A
公开(公告)日：2013-11-07
申请号：JP2012099263
申请日：2012-04-24
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust control device and method for an internal combustion engine capable of detecting a sulfur component concentration in fuel with high accuracy.SOLUTION: An exhaust purification device for an internal combustion engine includes: an exhaust purification catalyst having an oxidation function; a SOsensor that is disposed downstream the exhaust purification catalyst and detects a SOconcentration in emission; a temperature increasing means for increasing the temperature of the exhaust purification catalyst; and a sulfur concentration acquisition means for acquiring the sulfur component concentration in used fuel by using the SOconcentration detected by the SOsensor when the temperature increasing means increases the temperature of the exhaust purification catalyst to a predetermined value.
Abstract translation: 要解决的问题：提供一种能够高精度地检测燃料中的硫成分浓度的内燃机的排气控制装置和方法。解决方案：一种内燃机的排气净化装置，具备：排气净化催化剂，具有： 氧化功能; 设置在排气净化催化剂下游的SO传感器，并检测发射中的SO浓度; 用于提高排气净化催化剂的温度的升温装置; 以及硫浓度获取装置，用于当升温装置将排气净化催化剂的温度升高到预定值时，通过使用由SO传感器检测到的SO浓度来获取废燃料中的硫成分浓度。
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公开(公告)号：JP2012041852A
公开(公告)日：2012-03-01
申请号：JP2010183186
申请日：2010-08-18
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU , SHIBATA TAKASHI , YAMAMOTO TAKASHI
CPC classification number: Y02T10/144 , Y02T10/18
Abstract: PROBLEM TO BE SOLVED: To promptly boost a supercharging pressure while preventing overshoot of exhaust pressure during accelerating operation.SOLUTION: An engine 10 includes a VVT (variable valve timing system) 32 for setting a phase of an exhaust valve 30 variable; and a supercharger 34 which is variable capacity. An ECU 60 measures acceleration time t required for the exhaust pressure to boost from a state before the accelerating operation to a threshold, when the accelerating operation has started. The shorter the acceleration time t is, the later valve-opening period of the exhaust valve 30 is. As a result, the overshoot of the exhaust pressure is prevented, and thereby the ECU 60 decrease nozzle opening of the supercharger 34 at the accelerating operation and promptly boosts the supercharging pressure. Accordingly, the efficiency of supercharging is enhanced and accelerating performance is improved, while boost of the exhaust pressure is moderately prevented.
Abstract translation: 要解决的问题：为了及时提高增压压力，同时防止加速运转时排气压力过大。 解决方案：发动机10包括用于设定排气门30的相位可变的VVT（可变气门正时系统）32; 以及可变容量的增压器34。 当加速操作开始时，ECU60测量排气压力从加速操作之前的状态升高到阈值所需的加速时间t。 加速时间t越短，排气阀30的稍后的开阀时间越短。 结果，防止排气压力的过冲，从而ECU60在加速操作中减小增压器34的喷嘴开度，并且迅速地提高增压压力。 因此，提高增压效率，提高加速性能，同时适度地防止排气压力的提高。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2009002179A
公开(公告)日：2009-01-08
申请号：JP2007161824
申请日：2007-06-19
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU , AOYAMA TARO
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine more effectively utilizing HC adsorbed by an HC adsorbing catalyst after catalyst light-off to increase a temperature increasing effect of a catalyst floor temperature due to catalyst combustion of the HC adsorbing catalyst and activate an exhaust-gas purification catalyst in an early stage using the temperature-increased exhaust gas, and thereby improving a purification performance of the exhaust gas.
SOLUTION: The exhaust emission control device for the internal combustion engine uses fuel supplied from a fuel tank 16 by a fuel injection valve 21 as fuel for combustion inside an engine cylinder, and uses a reducing agent adding valve 22 for reducing NOx. When it is before the catalyst light-off of a NOx purification catalyst 43a and an exhaust-gas flow rate is less than a predetermined value, the purification device makes a discharging amount of HC in the exhaust gas to be in a greater amount condition to positively adsorb HC by the HC adsorbing catalyst. Therefore, the catalyst floor temperature is rapidly increased by the catalyst combustion after the catalyst light-off of the HC adsorbing catalyst, a warm-up performance of the NOx purification catalyst 43a is improved, and a NOx purification performance is improved.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 解决的问题：为了在催化剂熄灭后更有效地利用HC吸附催化剂吸附的HC来提供用于内燃机的废气排放控制装置，以增加催化剂燃烧引起的催化剂底板温度的升温效果 的HC吸附催化剂，并且使用升温废气在早期使活性化废气净化催化剂，从而提高废气的净化性能。 解决方案：内燃机的废气排放控制装置使用燃料喷射阀21从燃料箱16供给的燃料作为发动机气缸内的燃烧用燃料，并且使用用于还原NOx的还原剂添加阀22。 当在NOx净化催化剂43a的催化剂熄灭之前和废气流量小于预定值时，净化装置使废气中的HC的排出量处于更大的量条件下， 通过HC吸附催化剂正向吸附HC。 因此，在HC吸附催化剂的催化剂熄灭之后催化剂燃烧迅速地提高了催化剂底板温度，提高了NOx净化催化剂43a的预热性能，提高了NOx净化性能。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2007054751A
公开(公告)日：2007-03-08
申请号：JP2005243933
申请日：2005-08-25
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KANTO YUJI , GOTO ISAMU
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust-gas cleaning apparatus of an internal combustion engine which can control adhesion of particulate material in an exhaust gas to a catalyst carrier. SOLUTION: The carrier 2 is housed in a case 3 which has an exhaust-gas inlet 4a which is an inlet of the exhaust gas and a cone part 3a in which the passage sectional area gradually increases from the exhaust-gas inlet 4a to the lower stream, wherein a part which is the upstream end side of the carrier 2 and shows that a passage sectional shape of the exhaust-gas inlet 4a is reflected in the flowing direction of the exhaust gas, is projected upstream, a side 2a, which is projected upstream, is flat and located upstream below the position where the passage sectional area of the cone part 3a is maximum, and a side 2b in the range of the periphery of the side 2a projected upstream to the periphery above the carrier is located downstream as the periphery of the carrier 2 approaches and also is concave downstream. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够控制排气中的颗粒材料与催化剂载体的粘附的内燃机的废气净化装置。 解决方案：载体2容纳在具有作为排气入口的排气入口4a和从排气入口4a逐渐增大通道截面面积的锥形部分3a的壳体3中 到下游，其中作为载体2的上游端侧的部分，并且表示排气入口4a的通道截面形状在排气的流动方向上被反射，上游侧2a 在上游设置的平坦部分位于锥形部分3a的通道截面积最大的位置的上游，并且在沿着载体上方突出到上游的侧面2a的周边范围内的侧面2b是 位于下游，因为载体2的周边接近并且也是凹下游。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2006022769A
公开(公告)日：2006-01-26
申请号：JP2004203175
申请日：2004-07-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： HASHIZUME TAKESHI , GOTO ISAMU , TOMINAGA HIROYUKI
CPC classification number: F01N3/035 , F01N13/009 , F01N13/0093 , F02B37/00 , F02D41/0007 , F02D41/029 , Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of enlarging an executable region of filter regeneration onto the low load side compared with conventional ones. SOLUTION: This exhaust emission control device 1 applied to a diesel engine equipped with a turbocharger 10, comprises a prior stage oxidation catalyst 13 provided downstream of a turbine 10b of the turbocharger 10; a post-stage oxidation catalyst 14 provided downstream of the prior stage oxidation catalyst 13; a particulate filter 15 provided downstream of the post-stage oxidation catalyst 14; and an injector 5 for supplying fuel required for filter regeneration of oxidizing to eliminate particulates accumulated on the particulate filter 15. The prior stage oxidation catalyst 13 is set in its volume so that space velocity during idling operation of the diesel engine 2 is 175,000 (1/h) or less. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 解决的问题：提供一种内燃机的排气排放控制装置，该排气排放控制装置能够与现有技术相比能够扩大到低负载侧的过滤器再生的可执行区域。 解决方案：该排气排放控制装置1应用于配备有涡轮增压器10的柴油机，包括设置在涡轮增压器10的涡轮10b的下游的前级氧化催化剂13。 设置在前一级氧化催化剂13的下游的后期氧化催化剂14; 设置在后段氧化催化剂14的下游的微粒过滤器15; 以及用于提供用于过滤器再生氧化所需的燃料的喷射器5，以消除颗粒过滤器15上积聚的微粒。将前一级氧化催化剂13设定为其体积，使得柴油发动机2的空转操作期间的空速为175,000（1 / h）以下。 版权所有（C）2006，JPO＆NCIPI
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Patent Agency Ranking
公开(公告)号：JP2000064891A
公开(公告)日：2000-02-29
申请号：JP23299898
申请日：1998-08-19
Applicant: TOYOTA MOTOR CORP
Inventor： KIBE KAZUYA , GOTO ISAMU , KANEKO TOMOHIRO , ISHIGAKI HIROTATSU , YAMAMOTO TAKASHI
Abstract: PROBLEM TO BE SOLVED: To optimally adjust the combustion of an internal combustion engine according to a working state. SOLUTION: Fuel injecting valves 10a to 10d are provided in a combustion chamber of an internal combustion engine 1, which carry out main fuel injection and auxiliary fuel injection before the main fuel injection. An electronic control unit (ECU) 30 sets up auxiliary fuel injection timing so as to make a delay in ignition of fuel of the auxiliary injection amount in practically working equal to a delay in ignition in an engine normal working state, and sets up the maximum fuel amount in a range where combustion can be finished between the auxiliary injection timing and main injection timing as the auxiliary injection amount. Therefore, the fuel of the auxiliary injection is completely burned by a start of the main injection, so that a combustion state of the fuel of the main injection is improved, and the generation of exhaust white fumes and the like is prevented.
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公开(公告)号：JP2010216434A
公开(公告)日：2010-09-30
申请号：JP2009066565
申请日：2009-03-18
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU
CPC classification number: Y02T10/144
Abstract: PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine, capable of preventing an air-fuel ratio from shifting on a rich-air-fuel-ratio side. SOLUTION: The exhaust emission control device for an internal combustion engine is applied to an internal combustion engine having: first and second superchargers provided on an intake passage and an exhaust passage; and an intake switching valve and an exhaust switching valve which switch operation modes between a mode of operating both the first and the second superchargers and a mode of operating only the first supercharger. Such an internal combustion engine is also called a twin-turbo system. The exhaust emission control device for an internal combustion engine includes: a NOx storage reduction catalyst which is disposed on the exhaust passage; and a reducing agent adding valve which is disposed on the exhaust passage on an upstream side of the NOx storage reduction catalyst. The exhaust emission control device for an internal combustion engine also includes a determination means and a control means. The determination means determines, according to the opening of the exhaust switching valve, whether a quantity of change in a supercharging pressure per predetermined time period is equal to or more than a predetermined value. The control means prohibits the reducing agent adding valve from adding a reducing agent, if the quantity of change in the supercharging pressure is equal to or more than the predetermined value. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 解决的问题：提供一种能够防止空燃比在富燃比侧移动的内燃机废气排放控制装置。 解决方案：一种用于内燃机的废气排放控制装置被应用于具有设置在进气通道和排气通道上的第一和第二增压器的内燃机; 以及进入切换阀和排气切换阀，其切换操作第一和第二增压器两者的操作模式以及仅操作第一增压器的模式。 这种内燃机也称为双涡轮增压系统。 用于内燃机的废气排放控制装置包括：设置在排气通道上的NOx储存还原催化剂; 以及还原剂添加阀，其设置在NOx吸留还原催化剂的上游侧的排气通路上。 用于内燃机的废气排放控制装置还包括确定装置和控制装置。 确定装置根据排气切换阀的打开来确定每预定时间段的增压压力的变化量是否等于或大于预定值。 如果增压压力的变化量等于或大于预定值，则控制装置禁止还原剂添加阀加入还原剂。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2005105949A
公开(公告)日：2005-04-21
申请号：JP2003340527
申请日：2003-09-30
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU
CPC classification number: Y02A50/2322
Abstract: PROBLEM TO BE SOLVED: To provide a technology capable of continuously performing the regeneration of a filter and the recovery thereof from SOx poisoning in a range where white smoke is not generated in an exhaust emission control device of an internal combustion engine. SOLUTION: This exhaust emission control device of the internal combustion engine for recovering the function of an exhaust emission control means by supplying a reducer to the exhaust emission control means comprises a navigation system detecting the present position of a vehicle and an internal combustion engine stop prediction means predicting whether the internal combustion engine is stopped or not based on the present position of the vehicle obtained by the navigation system. By this, when the prediction means predicts that the internal combustion engine is stopped while the function of the exhaust emission control means is recovered, it stops the supply of the reducer to the exhaust emission control means (S106). COPYRIGHT: (C)2005,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种能够在内燃机的废气排放控制装置中不产生白烟的范围内从SOx中毒继续进行过滤器的再生和回收的技术。 解决方案：用于通过向排气排放控制装置供给减速器来恢复废气排放控制装置的功能的内燃机的排气排放控制装置包括检测车辆的当前位置和内燃的导航系统 发动机停止预测意味着基于由导航系统获得的车辆的当前位置来预测内燃机是否停止。 由此，当预测装置预测内燃机在废气排放控制装置的功能恢复的同时停止时，停止向排气排放控制装置供给减速器（S106）。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2004340073A
公开(公告)日：2004-12-02
申请号：JP2003139450
申请日：2003-05-16
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： GOTO ISAMU
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine capable of carrying out auxiliary fuel injection under appropriate setting and securing lubrication of a cylinder wall surface simultaneously.
SOLUTION: This engine is provided with a fuel injection valve 2 injecting fuel in a cylinder 1, an oil injection part 4 injecting oil for cooling to at least one of a back surface of a piston 3 and an inside of the cylinder 1, and an injection control part 5 making the fuel injection valve 2 carry out main fuel injection and post fuel injection injecting with delay after the main fuel injection and controlling operation and stop of an oil injection part 4. The injection control part 5 stops oil injection by the oil injection part 4 for a predetermined period with synchronizing with post fuel injection timing. Temperatures of the piston and the cylinder wall which heretofore have been cooled by oil injection rises as oil injection is stopped. Since post fuel injection in the cylinder 1 is carried out under this condition, fuel evaporates quickly in the atmosphere of raised temperature of the inside of the cylinder and adhesion on the cylinder wall surface can be suppressed.
COPYRIGHT: (C)2005,JPO&NCIPIAbstract translation: 要解决的问题：提供能够在适当设定下进行辅助燃料喷射并同时确保气缸壁面的润滑的内燃机。 解决方案：该发动机设置有在气缸1中喷射燃料的燃料喷射阀2，向活塞3的后表面和气缸1的内部中的至少一个喷射油的喷油部4 以及使得燃料喷射阀2在主燃料喷射和控制操作和喷油部分4的停止之后延迟地执行主燃料喷射和后燃料喷射喷射的喷射控制部分5.喷射控制部分5停止喷油 通过喷油部4与后燃料喷射正时同步一段预定时间。 迄今为止，通过注油冷却的活塞和气缸壁的温度随着注油停止而升高。 由于在该状态下进行气缸1内的后燃料喷射，所以在气缸内部的升温温度的气氛中燃料迅速蒸发，能够抑制气缸壁面的粘附。 版权所有（C）2005，JPO＆NCIPI
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公开(公告)号：JP2003184526A
公开(公告)日：2003-07-03
申请号：JP2001381179
申请日：2001-12-14
Applicant: TOYOTA MOTOR CORP
Inventor： GOTO ISAMU
Abstract: PROBLEM TO BE SOLVED: To provide a controller for engine-oil temperature for obtaining an appropriate temperature of lubricating oil. SOLUTION: At the time when temperature of a lubricating oil OIL in an oil pan 2 is low, a switch A is turned on to the side of (1), and a switch B is turned on to the side of (4), and a circulation medium flows from a pump 3 to the engine block 1 and an oil pan 2 in order, and returns to the pump 3. At the time when temperature of the lubricating oil OIL in the oil pan 2 is high, the switch A is turned on to the side of (2) and the switch B is turned on to the side of (3), and the circulation medium flows from the pump 3 to the oil pan 2 and the engine block 1 in order, and then returns to the pump 3 in reverse to the preceding case. COPYRIGHT: (C)2003,JPO
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