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公开(公告)号：JP2011220205A
公开(公告)日：2011-11-04
申请号：JP2010089574
申请日：2010-04-08
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YOSHIZAKI SATOSHI , IRISAWA YASUYUKI , MITANI SHINICHI , KADOOKA TAKU , SATO SATORU , URANO SHIGEYUKI
CPC classification number: F02M31/18 , Y02T10/126
Abstract: PROBLEM TO BE SOLVED: To quickly supply vaporized fuel into a cylinder even at the time of low-temperature start and to enhance startabilty.SOLUTION: An engine 10 includes a normal fuel tank 34, a vaporized fuel tank 42, an in-tank injection valve 44, a vaporized fuel supply valve 48, an atmosphere introduction valve 50 and so forth. An ECU 70 supplies the vaporized fuel accumulated in the vaporized fuel tank 42 during operation of the engine to a surge tank 20 at the start-up. In this case, the ECU 70 drives a throttle valve 18 based on a required flow rate at the start-up of the vaporized fuel, and controls a supply flow rate of the vaporized fuel depending on a throttle opening degree. Thereby, even when, for example, a simple solenoid valve of a two-position switching type is used, as the vaporized fuel supply valve 48 or the atmosphere introduction valve 50, a supply amount of the vaporized fuel can be smoothly controlled by utilizing existing throttle valve 18.
Abstract translation: 要解决的问题：即使在低温启动时也能将蒸发的燃料快速供应到气缸中，并提高可燃性。 解决方案：发动机10包括正常燃料箱34，汽化燃料箱42，槽内喷射阀44，汽化燃料供给阀48，大气引入阀50等。 在起动时，ECU70将发动机运转期间积聚在蒸发燃料箱42中的蒸发燃料供给缓冲罐20。 在这种情况下，ECU70基于汽化燃料的启动时的所需流量驱动节气门18，并根据节气门开度来控制汽化燃料的供给流量。 因此，即使例如使用二位开关式的简单电磁阀作为蒸发燃料供给阀48或大气引入阀50，也可以通过利用现有的燃料供给阀48或大气引入阀50来平稳地控制蒸发燃料的供给量 节气门18.版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011220114A
公开(公告)日：2011-11-04
申请号：JP2010086435
申请日：2010-04-02
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
CPC classification number: Y02T10/32
Abstract: PROBLEM TO BE SOLVED: To improve stating performance by quickly supplying vaporized fuel to a cylinder even upon cold start.SOLUTION: An engine 10 includes a normal fuel tank 32, a vaporized fuel tank 38, an in-tank injection valve 40, and a vaporized fuel supply valve 42 and the like. An ECU 70 supplies vaporized fuel stored in the vaporized fuel tank 38 during engine running to a surge tank 20 upon start. In this case, the ECU 70 performs cranking in a closed state of a vaporized fuel supply valve 42 and a throttle valve 18, and discharges residual air of the surge tank 20 etc. by the cranking. When the discharging of the residual air is ended, supplying of vaporized fuel is started. Thus, flowing of the vaporized fuel together with the residual air to the cylinder is suppressed, and the vaporized fuel of a high concentration is quickly supplied into the cylinder immediately after the supplying start of the vaporized fuel.
Abstract translation: 要解决的问题：即使在冷启动时，通过快速将蒸发的燃料提供给气缸来改善表现性能。 解决方案：发动机10包括正常燃料箱32，汽化燃料箱38，舱内喷射阀40和汽化燃料供给阀42等。 ECU70在启动时将发动机运行期间储存在蒸发的燃料箱38中的蒸发燃料提供给缓冲箱20。 在这种情况下，ECU70在汽化燃料供给阀42和节流阀18的关闭状态下进行起动，并通过起动来排出缓冲罐20等的残留空气。 当剩余空气的排出结束时，开始供应汽化燃料。 因此，将蒸发的燃料与残留空气一起流动到气缸中，并且在蒸发的燃料的供应开始之后立即将高浓度的蒸发燃料快速供应到气缸中。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011202540A
公开(公告)日：2011-10-13
申请号：JP2010068659
申请日：2010-03-24
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： YOSHIZAKI SATOSHI , IRISAWA YASUYUKI , MITANI SHINICHI , KADOOKA TAKU , SATO SATORU , URANO SHIGEYUKI
Abstract: PROBLEM TO BE SOLVED: To improve the startability of an internal combustion engine by quickly supplying a gasified fuel into cylinders even during a cold startup.SOLUTION: The engine 10 includes a normal fuel tank 32, a gasified fuel tank 36, an in-tank injection valve 38, a gasified fuel supply valve 40, and others. An ECU 70 operates to supply the gasified fuel stored in the gasified fuel tank 36 during the operation of the engine to a surge tank 20 during the startup. When the cumulative supply amount Qsum of the gasified fuel exceeds a startup requested amount Qreq, the ECU operates to stop the supply of the gasified fuel, and changes over the fuel supply to a normal fuel injection. Thereby, during the startup, the consumption of the gasified fuel can be suppressed while the startability is secured by supplying the gasified fuel stored beforehand into the cylinders. Also, the disturbance of an air-fuel ratio or a mis-fire are prevented from occurring due to the excessive supply of the gasified fuel.
Abstract translation: 要解决的问题：即使在冷启动期间，通过将气化燃料快速供给到气缸中来提高内燃机的启动性。解决方案：发动机10包括正常燃料箱32，气化燃料箱36，内箱 喷射阀38，气化燃料供给阀40等。 在启动期间，ECU70操作以将发动机操作期间储存在气化燃料箱36中的气化燃料供应到缓冲箱20。 当气化燃料的累积供给量Qsum超过起动要求量Qreq时，ECU动作停止气化燃料的供给，并将燃料供给转换为通常的燃料喷射。 由此，在起动时，通过将预先存储的气化燃料供给到气缸来确保起动性，可以抑制气化燃料的消耗。 此外，由于气化燃料的过量供应，防止发生空燃比或误火的干扰。
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公开(公告)号：JP2011064103A
公开(公告)日：2011-03-31
申请号：JP2009214535
申请日：2009-09-16
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： IRISAWA YASUYUKI , MITANI SHINICHI , KADOOKA TAKU , YOSHIZAKI SATOSHI , SATO SATORU , URANO SHIGEYUKI
CPC classification number: Y02T10/46
Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine reducing THC (Total HydroCarbon) emission by stabilizing air-fuel ratio feedback control when alcohol-mixed fuel is directly injected into a cylinder in an engine cold start.
SOLUTION: When an alcohol concentration in fuel is lower than E
0 % or when the engine is not started under a cold condition, the engine 10 is subjected to normal processing. Meanwhile, when the alcohol concentration in a fuel tank 40 is higher than the E
0 % predetermined as a concentration higher than about 20% in the engine cold start, control changing an operation action line to the side of high torque and low engine speed is performed. Thereby, fresh air volume led to flow into the cylinder is increased, and filling efficiency is increased to raise compression end temperature. Since it is possible to promote vaporization of fuel and to reduce unvaporized fuel, the THC emission is reduced by stabilizing the air-fuel ratio feedback control.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种内燃机的控制装置，通过在酒精混合燃料在发动机冷起动中直接喷射到气缸中时，通过稳定空燃比反馈控制来减少THC（总氢碳）排放。
解决方案：当燃料中的酒精浓度低于E
0 ％时，或者当发动机在寒冷条件下未起动时，发动机10进行正常的处理。 同时，当在发动机冷启动中燃料箱40中的酒精浓度高于预定为高于约20％的浓度的E 0 ％时，控制将操作动作线改变为 执行高扭矩和低发动机转速。 由此，导致流入气缸的新鲜空气量增加，并且提高填充效率以提高压缩端温度。 由于可以促进燃料的蒸发和减少未蒸发的燃料，所以通过稳定空燃比反馈控制来减少THC排放。 版权所有（C）2011，JPO＆INPIT -
公开(公告)号：JP2010275961A
公开(公告)日：2010-12-09
申请号：JP2009131014
申请日：2009-05-29
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SATO SATORU , KADOOKA TAKU , MITANI SHINICHI , URANO SHIGEYUKI , HIROOKA SHIGEMASA
Abstract: PROBLEM TO BE SOLVED: To provide an engine cooling device capable of preventing or suppressing the deterioration of the exhaust emission due to the supercooling of the latter-stage catalyst when cooling, using a coolant, the exhaust system of an engine mounted with an earlier-stage catalyst and a latter-stage catalyst which are arranged in series. SOLUTION: The cooling device 100A includes an ECU 1A, a water pump 10, an engine 50, cooling adaptors 21 and 22, a radiator 30, catalysts 23 and 24, a UFC 25 and an open/close valve 40 permitting or prohibiting the circulation of the cooling water to the cooling adaptors 21 and 22. In the ECU 1A, a first control means for controlling the open/close valve 40 to prohibit the circulation of the cooling water to the cooling adaptors 21 and 22 when the accumulated amount taken in air calculated during the idling of the engine 50 exceeds a predetermined value is functionally realized. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种发动机冷却装置，其能够防止或抑制在使用冷却剂进行冷却时由于后段催化剂的过冷而导致的排气的劣化，发动机的排气系统安装有 早期催化剂和后期催化剂，它们串联排列。 解决方案：冷却装置100A包括ECU 1A，水泵10，发动机50，冷却适配器21和22，散热器30，催化剂23和24，UFC 25和开/关阀40，允许或 禁止冷却水循环到冷却适配器21和22.在ECU 1A中，第一控制装置用于控制打开/关闭阀40，以防止冷却水循环到冷却适配器21和22时累积 在发动机50的怠速期间计算的空气中的空气量超过预定值。 版权所有（C）2011，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2010248942A
公开(公告)日：2010-11-04
申请号：JP2009096900
申请日：2009-04-13
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： SATO SATORU , HIROOKA SHIGEMASA , MITANI SHINICHI , KADOOKA TAKU , YOSHIZAKI SATOSHI
Abstract: PROBLEM TO BE SOLVED: To provide a control device for an internal combustion engine capable of preventing the boiling of cooling water at a cold start. SOLUTION: The control device for the internal combustion engine includes: cooling water main paths 81-83 passing through an engine 10; a cooling water auxiliary path 90 passing through a cooling device 40 cooling exhaust gas from the engine 10 and communicating with the cooling water main paths 81-83, changeover valves 44, 45 changing over the cooling water main paths 81-83 and the cooling water auxiliary path 90 between communication states and cut-off states; a temperature sensor 50 detecting a temperature of cooling water; and an ECU 20 detecting the operation state of the engine 10 and controlling the changeover valves 44, 45 to the communication states when the temperature of the cooling water is lower than a prescribed value and the operation state of the engine 10 is at heavy loading. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供一种能够防止冷启动时冷却水沸腾的内燃机的控制装置。 解决方案：用于内燃机的控制装置包括：通过发动机10的冷却水主路径81-83; 通过冷却装置40的冷却水辅助路径90，冷却装置40将来自发动机10的废气冷却，并与冷却水主路径81-83连通，切换阀44,45的冷却水主路径81-83和冷却水 通信状态和截止状态之间的辅助路径90; 检测冷却水的温度的温度传感器50; 以及当冷却水的温度低于规定值并且发动机10的运转状态处于大负载时，ECU 20检测发动机10的运转状态并控制转换阀44,45为通讯状态。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010180754A
公开(公告)日：2010-08-19
申请号：JP2009024162
申请日：2009-02-04
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU
Abstract: PROBLEM TO BE SOLVED: To provide a control device of an on-vehicle internal combustion engine capable of suitably securing stopping performance and heating performance of a vehicle, when performing processing for reducing an idle rotating speed in a braking process of the vehicle on a low μ road.
SOLUTION: Driving force of the internal combustion engine is transmitted to a driving wheel via a torque converter. An electronic control device performs control for controlling the idle rotating speed of the internal combustion engine to a target idle rotating speed. The electronic control device variably sets a reduction quantity Nα of the target idle rotating speed Ni based on a speed difference α between an engine speed Ne of the engine and a turbine rotating speed Nt (Step S130, S140) when satisfying a condition that the engine speed Ne of the engine is higher than the turbine rotating speed Nt of a turbine impeller arranged in a torque converter in the braking process of the vehicle in the low μ road (Step S110, S120: YES). The target idle rotating speed Ni is reduced by the preset reduction quantity Nα (Step S150).
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：为了提供能够适当地确保车辆的停止性能和加热性能的车载内燃机的控制装置，当在车辆的制动过程中执行用于减小怠速转速的处理时 在低μ路上。 解决方案：内燃机的驱动力通过变矩器传递到驱动轮。 电子控制装置执行用于将内燃机的怠速转速控制为目标怠速转速的控制。 电子控制装置根据发动机的发动机转速Ne与涡轮转速Nt之间的速度差α可变地设定目标怠速转速Ni的减速量Nα（步骤S130，S140），当满足发动机 在低μ路的车辆制动过程中，发动机的速度Ne高于设置在变矩器中的涡轮叶轮的涡轮转速Nt（步骤S110，S120：是）。 目标怠速转速Ni减少预设的减速量Nα（步骤S150）。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010168990A
公开(公告)日：2010-08-05
申请号：JP2009012068
申请日：2009-01-22
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU , HIROOKA SHIGEMASA , MITANI SHINICHI , YOSHIZAKI SATOSHI , SATO SATORU
Abstract: PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine in which a difference of deterioration degrees among a plurality of catalysts is suppressed. SOLUTION: The control device of the internal combustion engine includes an engine body 10 provided with banks 12L, 12R, a cooling device 40L for cooling exhaust gas discharged from the bank 12L, a cooling device 40R for cooling the exhaust gas discharged from the bank 12R, a catalyst 20L for purifying the exhaust gas cooled by the cooling device 40L, a catalyst 20R for purifying the exhaust gas cooled by the cooling device 40R and ECUs 7L, 7R for estimating a cooling effect of the cooling device 40L and a cooling effect of the cooling device 40R and controlling the drive state of an engine body 10 according to the estimation result so that difference between a heating value that the catalyst 20L receives from the exhaust gas and a heating value that the catalyst 20R receives from the exhaust gas is decreased. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 解决的问题：提供抑制多种催化剂的劣化度差异的内燃机的控制装置。 解决方案：内燃机的控制装置包括设置有堤12L，12R的发动机主体10，用于冷却从组12L排出的排气的冷却装置40L，用于冷却从排出的废气排出的排气的冷却装置40R 用于净化由冷却装置40L冷却的废气的催化剂20L，用于净化由冷却装置40R冷却的废气的催化剂20R和用于估计冷却装置40L的冷却效果的ECU7L，7R， 冷却装置40R的冷却效果，并且根据估计结果来控制发动机主体10的驱动状态，使得催化剂20L从废气接收的发热量与催化剂20R从排气口接收的热值之间的差异 气体减少。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010121587A
公开(公告)日：2010-06-03
申请号：JP2008297928
申请日：2008-11-21
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU
Abstract: PROBLEM TO BE SOLVED: To improve startability while suppressing the excess rich condition of fuel.
SOLUTION: This control device for an internal combustion engine includes an intake air amount control valve in an intake passage. The device predicts and discriminates that the amount of fuel deposited on the wall face of the intake passage of the internal combustion engine is greater than a reference amount when starting the internal combustion engine. As a result, the device closes the intake air amount control valve when not discriminating that the amount of fuel deposited on the wall face is greater than the reference amount, and controls the opening of the intake air amount control valve to be larger than the opening of closed one when discriminating that the amount of fuel deposited on the wall face is greater than the reference amount.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：为了提高启动性，同时抑制燃料的富余状态。 解决方案：该内燃机的控制装置包括进气通道中的进气量控制阀。 该装置预测并判别在启动内燃机时沉积在内燃机的进气通道的壁面上的燃料量大于基准量。 结果，当不区分在壁面上沉积的燃料量大于基准量时，该装置关闭进气量控制阀，并且控制进气量控制阀的开度大于开启 当鉴别出沉积在壁面上的燃料量大于参考量时，其为闭合的。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2009144552A
公开(公告)日：2009-07-02
申请号：JP2007320823
申请日：2007-12-12
Applicant: Toyota Motor Corp , トヨタ自動車株式会社
Inventor： KADOOKA TAKU , SHINAGAWA TOMOHIRO , HOSOKAWA YOHEI
IPC: F02D45/00
Abstract: PROBLEM TO BE SOLVED: To accurately acquire the changes of fuel property, by excluding the influence of an abnormality in a fuel supply device.
SOLUTION: A control device (electronic control unit 1) for an internal combustion engine having a fuel property determination means determining the changes of the fuel property of fuel F supplied into a combustion chamber CC, based on detection values of an exhaust sensor 83 detecting an oxygen amount in exhaust gas or an air excess ratio. The fuel property determination means determines whether a deviation between an actual air-fuel ratio and a target air-fuel ratio is caused by the changes of the fuel property or an abnormality of a fuel supply device 50.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：通过排除燃料供应装置中的异常的影响，来准确地获得燃料特性的变化。 解决方案：一种用于内燃机的控制装置（电子控制单元1），其具有燃料特性确定装置，其基于排气传感器的检测值来确定供给到燃烧室CC中的燃料F的燃料特性的变化 83检测排气中的氧量或空气过剩率。 燃料特性确定装置确定实际空燃比和目标空燃比之间的偏差是否由燃料特性的变化或燃料供应装置50的异常引起。（C） 2009年，JPO＆INPIT
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