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公开(公告)号：JP2013245659A
公开(公告)日：2013-12-09
申请号：JP2012122306
申请日：2012-05-29
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , NOMURA HIROSHI
Abstract: PROBLEM TO BE SOLVED: To provide a particulate matter processing device capable of preventing a drop in fuel consumption for the condensation of particulate matters.SOLUTION: In a particulate matter processing device having an electrode capable of changing an applied voltage while being arranged on an exhaust passage of an internal combustion engine, a detection device for detecting a current passing through the electrode, a voltage control device for making adjustment to raise the applied voltage to the electrode within a range where no pulse current is generated in the current detected by the detection device, an in-cylinder injection valve for injecting fuel in a cylinder of the internal combustion engine, and an in-passage injection valve for injecting the fuel in an air intake passage of the internal combustion engine, an amount of fuel injected from the in-cylinder injection valve is reduced as an amount of current conduction to the electrode is increased, and an amount of fuel injected from the in-passage injection valve is increased.
Abstract translation: 要解决的问题：提供一种能够防止颗粒物冷凝的燃料消耗下降的颗粒物质处理装置。解决方案：在具有能够在排气排列时能够改变施加电压的电极的颗粒物质处理装置中 内燃机的通过，用于检测通过电极的电流的检测装置，用于进行调节的电压控制装置，以在由检测检测到的电流中不产生脉冲电流的范围内升高对电极的施加电压 装置，用于在内燃机的气缸中喷射燃料的缸内喷射阀，以及用于将燃料喷射到内燃机的进气通道中的通道内喷射阀， 当电极的电流传导量增加时，气缸喷射阀减少，燃料量i增加 从通道内注射阀注射的量增加。
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公开(公告)号：JP2013142305A
公开(公告)日：2013-07-22
申请号：JP2012002206
申请日：2012-01-10
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , MURASE EIJI , TSUKAKOSHI TAKAHIRO , MATSUDA KAZUHISA
CPC classification number: F02D41/3094 , F02D19/084 , F02D19/087 , F02D41/047 , F02D41/062 , F02D2200/0611 , Y02T10/36
Abstract: PROBLEM TO BE SOLVED: To improve air-fuel ratio controllability when starting, by simultaneously using intake passage injection by considering a characteristic of alcohol fuel, while securing startability by cylinder injection.SOLUTION: An ECU 50 injects fuel only from a cylinder injection valve 28 in at least a first cycle when starting an engine, and simultaneously uses fuel injection of an intake passage injection valve 26 on and after a second cycle. When an alcohol concentration in the fuel is a predetermined value or more, a portion of the fuel injected from the intake passage injection valve 26 in the second cycle, is injected from the intake passage injection valve 26 by moving up to the first cycle. Thus, even when the alcohol concentration in the fuel is high, a portion of an intake passage injection quantity of becoming excessive in the second cycle, is moved up to the first cycle, and this fuel can be burnt in the second cycle by a transport delay, and quantity of fuel to be burnt in the respective cycles can be properly controlled.
Abstract translation: 要解决的问题：为了提高起动时的空燃比控制性，通过考虑醇燃料的特性同时使用进气通道喷射，同时通过气缸喷射确保启动性。解决方案：ECU50仅从气缸喷射阀28喷射燃料 在起动发动机时的至少第一循环中，并且同时在第二循环之
间和之后使用进气通道喷射阀26的燃料喷射。 当燃料中的酒精浓度为预定值以上时，从进气通道喷射阀26在第二循环中喷射的燃料的一部分从进气通道喷射阀26通过向上移动直到第一循环来喷射。 因此，即使当燃料中的醇浓度高时，在第二循环中进入通道喷射量变得过大的部分被移动到第一循环，并且该燃料可以在第二循环中通过运输 可以适当地控制延迟和在各循环中燃烧的燃料量。-
公开(公告)号：JP2013142301A
公开(公告)日：2013-07-22
申请号：JP2012002090
申请日：2012-01-10
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , MURASE EIJI , TSUKAKOSHI TAKAHIRO , MATSUDA KAZUHISA
Abstract: PROBLEM TO BE SOLVED: To excellently hold combustibility, even if an estimation error of an alcohol concentration exists when starting.SOLUTION: An ECU 50 injects fuel exceeding an allowable limit in a transport delay out of fuel tried to be injected from an intake passage injection valve 26, from a cylinder injection valve 28 as a transport delay increase quantity, when simultaneously using intake passage injection and cylinder injection when starting an engine. Thus, even when an estimation error is caused when estimating an alcohol concentration in the fuel, a cylinder injection quantity for improving startability can be increased. Thus, influence of the estimation error on an intake passage injection quantity and a transport delay increase quantity is restrained, and starting time combustibility can be excellently held. A variation in the air-fuel ratio and the deterioration in exhaust emission caused by the transport delay of the intake passage injection are restrained, and the startability and an exhaust characteristic can be improved.
Abstract translation: 要解决的问题：即使在启动时存在酒精浓度的估计误差，也能够保持可燃性。解决方案：ECU 50将超过允许极限的燃料从运行延迟中喷出，从尝试从进气通道注入喷射的燃料 阀26，作为输送延迟增加量，来自气缸喷射阀28，同时在起动发动机时同时使用进气通道喷射和气缸喷射。 因此，即使当估计燃料中的酒精浓度时发生估计误差时，也可以提高用于提高启动性的气缸喷射量。 因此，抑制了估计误差对进气通道喷射量和运送延迟增加量的影响，并且可以良好地保持起动时间可燃性。 抑制由于进气通道喷射的输送延迟引起的空燃比的变化和废气排放的劣化，能够提高起动性和排气特性。
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公开(公告)号：JP2013119822A
公开(公告)日：2013-06-17
申请号：JP2011268774
申请日：2011-12-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , MURASE EIJI , TSUKAKOSHI TAKAHIRO , MATSUDA KAZUHISA
IPC: F02P5/15
CPC classification number: Y02T10/46
Abstract: PROBLEM TO BE SOLVED: To suitably control ignition timing for catalyst warmup on the basis of an alcohol concentration even if the alcohol concentration in fuel is varied.SOLUTION: The ECU 50 executes second catalyst warmup control after first catalyst warmup control is executed at the ignition retard angle permissible number α after starting the engine. In the first catalyst warmup control, an ignition action is executed while an amount of a retard angle of ignition timing is reduced than that of the second catalyst warmup control. An amount of an ignition retard angle is considerably retarded on the second catalyst warmup control on the basis of the alcohol concentration. Even though errors are contained in an acquired value of the alcohol concentration caused by refueling, such the errors can be prevented from being reflected to the ignition timing at an early stage of the catalyst warmup control. Consequently, catalyst warmup control can be performed at an optimal state in the internal combustion engine using alcohol fuel, and a catalyst can be effectively warmed up.
Abstract translation: 要解决的问题：为了适当地控制基于醇浓度的催化剂预热的点火正时，即使燃料中的醇浓度变化。 解决方案：ECU50在启动发动机之后以点火延迟角许可数α执行第一催化剂预热控制之后执行第二催化剂预热控制。 在第一催化剂预热控制中，当点火正时的延迟角的量比第二催化剂预热控制的点降低时，执行点火动作。 基于醇浓度，第二催化剂预热控制上的点燃延迟角的量显着延迟。 即使在由加油引起的酒精浓度的获取值中包含误差，因此可以防止在催化剂预热控制的早期阶段反映到点火正时的误差。 因此，可以使用醇燃料在内燃机的最佳状态下进行催化剂预热控制，能够有效地预热催化剂。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2013036448A
公开(公告)日：2013-02-21
申请号：JP2011175308
申请日：2011-08-10
Applicant: Nippon Soken Inc , 株式会社日本自動車部品総合研究所 , Toyota Motor Corp , トヨタ自動車株式会社
Inventor： TAKAHASHI YUKIHIRO , HOSHI KOICHI , SHINODA SACHIHISA , MITANI SHINICHI
Abstract: PROBLEM TO BE SOLVED: To improve cooling efficiency of exhaust gas in an exhaust gas cooling adapter for an internal combustion engine.SOLUTION: A passage cross-sectional area of an exhaust passage 22 of the exhaust gas cooling adapter 8 is reduced as it goes from a side of an exhaust port 12 to a side of an exhaust manifold 10. The exhaust gas flowing from the exhaust port 12 into the exhaust passage 22 is cooled while flowing and the volume is reduced. The passage cross-sectional area of the exhaust passage 22 is also reduced, thereby preventing the reduction in flow velocity and improving cooling efficiency. The passage cross-sectional area of a water jacket 24 is enlarged in an exhaust downstream side, so that cooling water flows at high speed on the side of the exhaust port 12. Accordingly, the exhaust gas can be efficiently cooled on the side of the exhaust port 12, which is a high temperature side, and film boiling can be prevented. Thus, the cooling efficiency is not reduced. In addition, the passage cross-sectional area of the water jacket 24 is enlarged on the exhaust downstream side, thereby reducing the pressure loss of a pump.
Abstract translation: 要解决的问题：提高用于内燃机的排气冷却适配器中的废气的冷却效率。 解决方案：排气冷却适配器8的排气通道22的通道横截面积从排气口12的侧面到排气歧管10的侧面减小。排气从 进入排气通道22的排气口12在流动的同时被冷却并且体积减小。 排气通道22的通道横截面积也减小，从而防止流速的降低和提高冷却效率。 水套24的通道横截面积在排气下游侧被扩大，使得冷却水在排气口12的侧面高速流动。因此，排气可以在 作为高温侧的排气口12，能够防止膜沸腾。 因此，冷却效率不降低。 此外，水套24的通道横截面积在排气下游侧增大，从而减小了泵的压力损失。 版权所有（C）2013，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2012219733A
公开(公告)日：2012-11-12
申请号：JP2011087257
申请日：2011-04-11
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , NOMURA HIROSHI , MURASE EIJI
CPC classification number: F01N11/00 , F01N2550/04 , F01N2560/05 , F01N2560/12 , Y02T10/47
Abstract: PROBLEM TO BE SOLVED: To detect a failure in a particulate-matter processing device.SOLUTION: A particulate-matter processing device includes: an electrode provided in an exhaust passage of an internal combustion engine; a power supply connected to the electrode in order to apply a voltage thereto; a particle-number detecting device that detects the particle number of particulate matter on the downstream side from the electrode; and a determination device that determines the presence of a failure if the absolute value of a variation of the particle number of particulate matter to be detected by the particle-number detecting device when the voltage applied to the electrode is changed is less than the threshold.
Abstract translation: 要解决的问题：检测颗粒物处理装置中的故障。 解决方案：颗粒物处理装置包括：设置在内燃机的排气通道中的电极; 连接到电极以向其施加电压的电源; 粒子数检测装置，其检测来自所述电极的下游侧的颗粒物质的粒子数; 以及如果在施加到电极的电压改变时由粒子数检测装置检测的颗粒物质的粒子数的变化的绝对值小于阈值，则确定故障的存在的确定装置。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2012193697A
公开(公告)日：2012-10-11
申请号：JP2011059352
申请日：2011-03-17
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： MITANI SHINICHI , NOMURA HIROSHI , MURASE EIJI
Abstract: PROBLEM TO BE SOLVED: To accelerate aggregation of particulate matter by setting the appropriate voltage applied to an electrode.SOLUTION: A particulate-matter processing device includes: an electrode provided in an exhaust passage of an internal combustion engine; a power supply connected to the electrode in order to apply a voltage thereto; a current detecting device for detecting a current flowing through the electrode; a device for detecting a lower limit value of an applied voltage that detects an applied voltage which becomes a boundary of whether or not a current is detected by the current detecting device when the power supply applies a voltage to the electrode; a device for learning the lower limit value of the applied voltage that learns the applied voltage detected by the device for detecting a lower limit value of an applied voltage; and an applied-voltage control device for applying a voltage larger than the applied voltage learned by the device for learning the lower limit value of the applied voltage.
Abstract translation: 要解决的问题：通过设置施加到电极的适当电压来加速颗粒物质的聚集。 解决方案：颗粒物处理装置包括：设置在内燃机的排气通道中的电极; 连接到电极以向其施加电压的电源; 用于检测流过电极的电流的电流检测装置; 检测施加电压的下限值的装置，其检测施加电压，该电压成为当所述电源向所述电极施加电压时所述电流检测装置是否检测到电流的边界; 用于学习所施加的电压的下限值的装置，该装置获得用于检测施加电压的下限值的装置检测到的施加电压; 以及施加电压控制装置，用于施加大于由所述装置学习的用于学习所施加电压的下限值的施加电压的电压。 版权所有（C）2013，JPO＆INPIT
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公开(公告)号：JP2012007523A
公开(公告)日：2012-01-12
申请号：JP2010143200
申请日：2010-06-23
Applicant: 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
Inventor： TAKAHASHI YUKIHIRO , MITANI SHINICHI , HOSHI KOICHI , SHINODA SACHIHISA
Abstract: PROBLEM TO BE SOLVED: To provide a cooling device of an internal combustion engine that prevents boiling of a coolant circulating through an exhaust manifold.SOLUTION: An engine cooling system 1 includes: a coolant circulation channel 22 which circulates the coolant through a water jacket 111 installed on the exhaust manifold 110; and a bypass channel 23 which branches from the coolant circulation channel 22 to bypass the water jacket 111. In addition, the system predicts a temperature variation of a heat-exchanging part between the coolant and the water jacket 111 on the basis of an engine output and an amount of the coolant (Wt) circulating through the water jacket 111 (Ti); and determines the necessity of increase of the amount of the coolant circulating through the water jacket 111 from the predicted result. When it is determined that the amount of the coolant needs to be increased, a control valve 24 installed on the bypass channel 23 is closed to shut off a communication, Wt is increased, and which thus prevents boiling of the coolant circulating through the exhaust manifold 110.
Abstract translation: 要解决的问题：提供一种内燃机的冷却装置，其防止循环通过排气歧管的冷却剂的沸腾。 发动机冷却系统1包括：冷却剂循环通道22，其使冷却剂循环通过安装在排气歧管110上的水套111; 以及从冷却剂循环通道22分支以绕过水套111的旁通通道23.另外，系统基于发动机输出预测冷却剂和水套111之间的热交换部的温度变化 和通过水套111（Ti）循环的冷却剂量（Wt）的量; 并且根据预测结果确定需要增加从水套111循环的冷却剂的量。 当确定需要增加冷却剂的量时，安装在旁通通道23上的控制阀24被关闭以阻止通信，Wt增加，从而防止通过排气歧管循环的冷却剂的沸腾 （C）2012年，JPO＆INPIT
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公开(公告)号：JP2011220235A
公开(公告)日：2011-11-04
申请号：JP2010090490
申请日：2010-04-09
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： URANO SHIGEYUKI , IRISAWA YASUYUKI , KADOOKA TAKU , MITANI SHINICHI , SATO SATORU , YOSHIZAKI SATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine which improves starting performance by quickly supplying vaporized fuel to a cylinder even upon cold start.SOLUTION: When a starting request of an engine 10 is generated, a vaporized fuel supply valve 42 and an atmosphere introduction valve 44 are always kept closed, and a throttle valve 18 is held in a fully closed position (step 202). Then, inner pressure Pt in a vaporized fuel tank 38 is detected and is compared with atmospheric pressure P0 (steps 204 to 206). As a result, when Pt>P0 is not established, in other words, there is negative pressure generated in the vaporized fuel tank 38, in a state where the atmospheric pressure valve 44 is always kept closed and the throttle valve 18 is held in the fully closed position, the vaporized fuel supply valve 42 is opened (step 208). Then, the atmosphere introduction valve 44 is opened with a predetermined time difference (step 210). Then, ignition start conditions are changed to start cranking (steps 212 to 214).
Abstract translation: 要解决的问题：提供一种内燃机的控制装置，其通过即使在冷启动时也快速地向汽缸供应气缸来提高启动性能。 解决方案：当产生发动机10的起动请求时，气化燃料供给阀42和大气引入阀44总是保持关闭，并且节气门18保持在完全关闭位置（步骤202）。 然后，检测汽化燃料箱38中的内压Pt，并与大气压P0进行比较（步骤204至206）。 结果，当Pt> P0不成立时，换句话说，在蒸发的燃料箱38中产生负压，在大气压力阀44始终保持关闭并且节流阀18保持在 完全关闭位置，汽化燃料供给阀42打开（步骤208）。 然后，大气引入阀44以预定的时间差打开（步骤210）。 然后，改变点火开始条件开始起动（步骤212〜214）。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011196351A
公开(公告)日：2011-10-06
申请号：JP2010066974
申请日：2010-03-23
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： WATANABE TETSUJI , MITANI SHINICHI , INOUE FUJIO
CPC classification number: F01P3/12 , F01P2060/16
Abstract: PROBLEM TO BE SOLVED: To provide an internal combustion engine exhaust cooling system capable of efficiently cooling an exhaust flow path of an exhaust cooling adapter without enlarging the exhaust cooling adapter and increasing the burden of a water jet pump.SOLUTION: A main flow of cooling water from a cooling water inlet 36a of an exhaust cooling adapter heads a cooling water flow path 34a side from a cooling water flow path 34b side through a cooling water flow path 34d. A flow rate of cooling water heading the cooling water flow path 34b is small. For this reason, a flow rate of cooling water in a water jacket 34 is increased through acceleration in the cooling water flow path 34a and decreased in the cooling water flow path 34b. Therefore, the prevention of temperature rise and the enhancement of boilproof can be realized in an exhaust flow path inner peripheral surface corresponding to the cooling water flow path 34a which makes temperature easily rise. The prevention of temperature rise can be achieved even when a flow rate of cooling water is small in an exhaust flow path inner peripheral surface corresponding to the cooling water flow path 34b which resists temperature rise. A discharge direction of the cooling water outlet 38a and flow direction in the cooling water flow path 34a are the same, so that the system can enhance the effect.
Abstract translation: 要解决的问题：提供一种能够有效地冷却排气冷却适配器的排气流路而不扩大排气冷却适配器并增加喷水泵的负担的内燃机排气冷却系统。解决方案：主要的冷却流 来自排气冷却适配器的冷却水入口36a的水将冷却水流路34a侧从冷却水流路34b侧经过冷却水流路34d。 通向冷却水流路34b的冷却水的流量小。 因此，通过冷却水流路34a的加速度和冷却水流路34b的减少，水套34中的冷却水的流量增加。 因此，能够使与温度容易上升的冷却水流路34a对应的排气流路内周面能够实现防止温度上升和提高耐沸腾性。 即使当与冷却水流路34b相对应的排气流路内周面的冷却水的流量小的情况下也可以实现温度上升的防止温度上升。 冷却水出口38a的排出方向和冷却水流路34a的流动方向相同，能够提高该效果。
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