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    • 1. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2010031750A
    • 2010-02-12
    • JP2008194946
    • 2008-07-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAJIMA TOYOKAZU
    • F02M25/07
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To restrain deterioration of emissions to the minimum even if passage re-circulating EGR gas is clogged, in a control device for an internal combustion engine provided with an EGR device re-circulating part of exhaust gas discharged to an exhaust gas passage from a combustion chamber to an intake air passage.
      SOLUTION: When, for example, an EGR passage 83 at an EGR cooler 83 side is clogged in a bypass passage 84 and the EGR passage 81 provided with the EGR cooler 83, frequency of using the EGR passage 81 is reduced and frequency of using the bypass passage 84 is increased according to clogging quantity of the EGR passage 81. Even if the EGR passage 81 is clogged, exhaust emission level is prevented from exceeding an allowance (for example, OBD regulation value) by such control.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:即使通过再循环EGR气体被堵塞,为了将排放物的劣化抑制到最小,在具有EGR装置的内燃机的控制装置中,再循环排出的废气的一部分被排放到 从燃烧室到进气通道的废气通道。 解决方案:例如,当EGR冷却器83侧的EGR通路83在旁通通路84和设置有EGR冷却器83的EGR通路81堵塞时,使用EGR通路81的频率降低,频率 根据EGR通路81的阻塞量而增加使用旁通通道84.即使EGR通路81堵塞,也可以通过这种控制来防止排气排放水平超过容许量(例如OBD调节值)。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Control device for internal combustion engine
    • 内燃机控制装置
    • JP2010031749A
    • 2010-02-12
    • JP2008194945
    • 2008-07-29
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAJIMA TOYOKAZU
    • F02M25/07
    • F02D41/22F02D41/0055F02D41/18F02D2200/0406F02M26/26F02M26/49Y02T10/47
    • PROBLEM TO BE SOLVED: To inhibit promotion of clogging of an EGR cooler during detection of abnormality of an EGR passage, in a control device for an internal combustion engine provided with an EGR device re-circulating part of exhaust gas discharged to an exhaust gas passage from a combustion chamber to an intake air passage. SOLUTION: Abnormality of the EGR passage 81 is diagnosed by detecting clogging quantity of the EGR passage 81 at a point of time when prescribed delay time DT elapses after abnormality detection conditions of the EGR passage 81 of a EGR device 8 are satisfied, namely, at a point of time when EGR gas and added fuel remaining in an exhaust manifold 72 at an upstream side of an EGR cooler 83 are scavenged by fresh air. Since EGR gas containing unburned fuel component and added fuel are prevented from going around into the EGR cooler 83 when abnormality is detected by executing abnormality detection of the EGR passage 81 after the inside of the exhaust manifold 72 is scavenged by the fresh air in such a manner, promotion of clogging of the EGR cooler 83 can be inhibited. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了防止在检测到EGR通道的异常时检测到EGR冷却器的阻塞,在内燃机的控制装置中,在内燃机的控制装置中,设有将EGR排出的废气再循环的EGR装置 从燃烧室到进气通道的废气通道。 解决方案:通过在满足EGR装置8的EGR通路81的异常检测条件之后经过规定的延迟时间DT的时刻检测EGR通路81的堵塞量来诊断EGR通路81的异常, 即,在EGR冷却器83的上游侧的排气歧管72中剩余的EGR气体和添加的燃料被新鲜空气清扫的时刻。 由于在排气歧管72的内部被这样的空气清扫后,通过执行EGR通路81的异常检测来检测到异常时,由于含有未燃烧燃料成分和添加的燃料的EGR气体被阻止进入EGR冷却器83 可以抑制EGR冷却器83的堵塞的促进。 版权所有(C)2010,JPO&INPIT
    • 3. 发明专利
    • Valve timing control device of internal combustion engine
    • 内燃机的时间控制装置
    • JP2014190295A
    • 2014-10-06
    • JP2013068160
    • 2013-03-28
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAJIMA TOYOKAZUYAMAMOTO SHUNSUKENAKAGAWA TAKASHI
    • F02D13/02F01L1/356
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To shorten a time necessary for the completion of fixing at an intermediate lock phase of a relative rotation phase of a cam shaft with respect to a crank shaft in an engine stop process.SOLUTION: In an engine stop process, an oil control valve 25 is operated as follows for completing a prohibition operation of a lock mechanism. That is, a spool valve in displaced in a first region within a moving range of the spool valve in the oil control valve 25, and a relative rotation phase of an intake cam shaft 12 with respect to a crank shaft 7 is adjusted to an intermediate lock phase by the drive of a valve timing variable mechanism 16 through the displacement of the spool valve. After the adjustment is performed, the spool valve is moved to a second region for performing the prohibition operation of the lock mechanism from the first region. A moving speed of the spool valve at this time is made higher than that at the time of the displacement of the spool valve in the first region for adjusting the relative rotation phase to the intermediate lock phase.
    • 要解决的问题:缩短在发动机停止过程中在凸轮轴相对于曲轴的相对旋转相位的中间锁定阶段完成固定所需的时间。解决方案:在发动机停止过程中, 如下操作油控制阀25,以完成锁定机构的禁止操作。 也就是说,在油控阀25中的滑阀的移动范围内的第一区域中移动的滑阀,并且进气凸轮轴12相对于曲轴7的相对旋转相位被调节到中间 通过阀芯定位可变机构16的驱动通过滑阀的位移来锁定相位。 在执行调整之后,滑阀被移动到用于执行锁定机构从第一区域的禁止操作的第二区域。 此时的滑阀的移动速度比在第一区域中的滑阀位移时的移动速度高,用于将相对旋转相位调整到中间锁定相位。
    • 4. 发明专利
    • Variable valve gear for internal combustion engine
    • 用于内燃机的变速阀齿轮
    • JP2014152709A
    • 2014-08-25
    • JP2013023400
    • 2013-02-08
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAGAWA TAKASHINAKAJIMA TOYOKAZU
    • F01L13/00F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a variable valve gear for an internal combustion engine, capable of improving the fuel consumption performance of the internal combustion engine by reducing the generating power of an actuator.SOLUTION: A cam for changing the moving position of a control shaft is actuated to be rotated by an electric motor. On the cam face of the cam, a shape change region and a shape hold region are formed where the diameter of the cam is gradually increased as the cam is rotated in one direction and where the diameter of the cam is gradually increased after gradually reduced as the cam is rotated in one direction, respectively. A roller connected to the control shaft is pushed against the cam face. When the operation part of the cam changes from the hold region into the change region (S100:YES) and the direction of rotating the cam during the change into the change region is the direction of reducing the diameter of the cam (S101:YES), the execution mode of the actuating control of the electric motor is switched over between before the change into the change region and after the change into the change region to make generating power (S103) of the electric motor in the hold region greater than generating power (S104) thereof in the change region.
    • 要解决的问题:提供一种用于内燃机的可变气门齿轮,其能够通过降低致动器的发电功率来改善内燃机的燃料消耗性能。解决方案:一种用于改变控制器的运动位置的凸轮 轴被致动以由电动机旋转。 在凸轮的凸轮面上,形成形状变化区域和形状保持区域,其中当凸轮沿一个方向旋转时凸轮的直径逐渐增加,并且随着凸轮的直径逐渐减小,凸轮的直径逐渐增加 凸轮分别沿一个方向旋转。 连接到控制轴的辊被推靠在凸轮面上。 当凸轮的操作部分从保持区域变化到变化区域(S100:是)并且在改变到变化区域期间使凸轮旋转的方向是减小凸轮直径的方向(S101:是) 电动机的动作控制的执行模式在切换到变化区域之前和改变为变化区域之后切换,使得电动机在保持区域的发电电力(S103)大于发电功率 (S104)。
    • 5. 发明专利
    • Controller for variable valve device
    • 可变阀装置的控制器
    • JP2013024089A
    • 2013-02-04
    • JP2011158199
    • 2011-07-19
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAJIMA TOYOKAZU
    • F02D13/02
    • F01L1/3442F01L1/185F01L2001/34466F01L2001/34469F01L2001/34476F01L2800/05
    • PROBLEM TO BE SOLVED: To provide a controller for a variable valve device that can secure as much conditions in which a valve timing can be changed according to an engine operating state.SOLUTION: A variable valve device 20 of an internal combustion engine 1 includes a hydraulic valve timing changing mechanism 30 for changing valve timing VT of an intake valve 21, a valve timing locking mechanism 40 for locking the valve timing VT to an intermediate angle phase VTmdl, and an electronic controller 81 for controlling an operation of the valve timing changing mechanism 30. The electronic controller 81 limits the variable range of the valve timing VT in accordance with the composition of hydraulic oil, when the operational state of the valve timing changing mechanism 30 is a phase-unlocked state in which the valve timing VT can be changed.
    • 要解决的问题:提供一种可变阀装置的控制器,其可以确保根据发动机运行状态可以改变气门正时的多个条件。 解决方案:内燃机1的可变气门装置20包括用于改变进气门21的气门正时VT的液压气门正时改变机构30,用于将气门正时VT锁定到中间位置的气门正时锁定机构40 角度相位VTmd1,以及用于控制气门正时变更机构30的动作的电子控制器81.电子控制器81根据液压油的组成来限制气门正时VT的可变范围,当阀的运转状态 定时改变机构30是可以改变气门正时VT的相位解锁状态。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • 可変動弁装置の制御装置
    • 可变阀门齿轮控制装置
    • JP2014238100A
    • 2014-12-18
    • JP2014194195
    • 2014-09-24
    • トヨタ自動車株式会社Toyota Motor Corp
    • NAKAJIMA TOYOKAZU
    • F02D13/02F01L1/356
    • 【課題】バルブタイミングを機関運転状態に応じて変更することが可能な状況をより多く確保することのできる可変動弁装置の制御装置を提供する。【解決手段】内燃機関1の可変動弁装置20は、吸気バルブ21のバルブタイミングを変更する油圧式のバルブタイミング変更機構30と、バルブタイミングを中間角位相に固定するバルブタイミング固定機構40と、バルブタイミング変更機構30の動作を制御する電子制御装置81とを備える。電子制御装置81は、進角時のバルブタイミングの動作速度を学習し、バルブタイミング変更機構30の動作状態がバルブタイミングを変更することが可能な位相解除状態のとき、学習したバルブタイミングの動作速度に応じてバルブタイミングの変更可能範囲を制限する。【選択図】図1
    • 要解决的问题:提供一种可变气门齿轮的控制装置,其可以确保根据发动机运行状态可更换气门正时的更多情况。解决方案:内燃机1的可变气门齿轮20包括: 用于改变进气门21的气门正时的液压气门正时改变机构30; 用于将气门正时固定到中间角相位的气门正时固定机构40; 以及用于控制气门正时变更机构30的动作的电子控制装置81.电子控制装置81学习前进时的气门正时的运转速度,当气门正时变更机构30的运转状态处于相位释放状态时 气门正时可改变的状态根据气门正时的学习操作速度限制气门正时的可变范围。
    • 7. 发明专利
    • Fault diagnostic device of variable valve train
    • 可变阀门故障诊断装置
    • JP2013181489A
    • 2013-09-12
    • JP2012046863
    • 2012-03-02
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAGAWA TAKASHINAKAJIMA TOYOKAZU
    • F02D45/00F01L1/46F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To provide a fault diagnostic device of a variable valve train capable of further optimizing electric power to be supplied to a drive part, in diagnosing a fault of a connecting part for connecting a variable mechanism part and the drive part.SOLUTION: An internal combustion engine includes a variable mechanism part 300 for changing a maximum lift quantity of an intake valve, a drive part 200 for driving the variable mechanism part 300, and a connecting part 400 for connecting the variable mechanism part 300 and the drive part 200. A control device 500 supplies electric power to the drive part 200 so that the maximum lift quantity becomes a target lift quantity when engine stall occurs, and executes diagnostic processing for diagnosing disconnection in the connecting part 400 on the basis of a driving state of the drive part 200 when supplying electric power. The control device 500 reduces power to be supplied to the drive part 200 during diagnostic processing when the maximum lift quantity is smaller than the target lift quantity when the engine stall occurs, as compared with when the maximum lift quantity is larger than the target lift quantity when the engine stall occurs.
    • 要解决的问题:提供一种能够进一步优化供应给驱动部件的电力的可变气门机构的故障诊断装置,用于诊断用于连接可变机构部件和驱动部件的连接部件的故障。解决方案 内燃机包括用于改变进气门的最大提升量的可变机构部分300,用于驱动可变机构部分300的驱动部分200和用于连接可变机构部分300和驱动部分的连接部分400 控制装置500向驱动部200供给电力,使得当发动机停转发生时最大提升量成为目标提升量,并且基于驾驶状态来执行用于诊断连接部400中的断开的诊断处理 驱动部200供电。 与最大提升量大于目标提升量的情况相比,当最大提升量小于发动机失速发生时的目标提升量时,控制装置500减少在诊断处理期间向驱动部200供给的动力 发动机失速时发生。
    • 8. 发明专利
    • Abnormality diagnostic device of exhaust recirculation device
    • 排气装置的非正常诊断装置
    • JP2010236516A
    • 2010-10-21
    • JP2009087912
    • 2009-03-31
    • Toyota Motor Corpトヨタ自動車株式会社
    • NAKAJIMA TOYOKAZU
    • F02M25/07F02D21/08
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide an abnormality diagnostic device of an exhaust recirculation device executing abnormality diagnosis without causing an excessive temperature rise of an exhaust purifying catalyst and instability of combustion. SOLUTION: This EGR device includes an EGR passage connecting an intake system and an exhaust system of an engine, and an EGR valve provided in the EGR passage for controlling the EGR flow rate returned from the exhaust system to the intake system. The exhaust system includes the exhaust purifying catalyst. When an execution condition of abnormality diagnosis of the EGR device is established, after the EGR valve is temporary driven to close (step S210), it is started to be driven to open (step S240). Assuming that a change amount ΔFegr of the EGR flow rate accompanying opening drive of the EGR valve is a determination value ΔFegrp or more, and it its determined that abnormality is not occurring in the EGR device (step S290), forcible drive of the EGR valve is interrupted, and the opening of the EGR valve is set to an opening based on the engine operation state (step S300). COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供执行异常诊断的排气再循环装置的异常诊断装置,而不会引起排气净化催化剂的过度升温和燃烧不稳定。 解决方案:该EGR装置包括连接发动机的进气系统和排气系统的EGR通路,以及设置在EGR通路中的用于控制从排气系统返回到进气系统的EGR流量的EGR阀。 排气系统包括排气净化催化剂。 当EGR装置的异常诊断的执行条件成立时,在EGR阀临时驱动关闭之后(步骤S210),开始被驱动打开(步骤S240)。 假设伴随EGR阀的打开驱动的EGR流量的变化量ΔFegr为判定值ΔFegrp以上,判断为在EGR装置中不发生异常(步骤S290),则EGR阀的强制驱动 并且基于发动机运转状态将EGR阀的开度设定为开度(步骤S300)。 版权所有(C)2011,JPO&INPIT
    • 9. 发明专利
    • 内燃機関の制御装置
    • 内燃机控制装置
    • JP2014202081A
    • 2014-10-27
    • JP2013076399
    • 2013-04-01
    • トヨタ自動車株式会社Toyota Motor Corp
    • YAMAMOTO SHUNSUKENAKAJIMA TOYOKAZU
    • F02D13/02F01L1/356
    • F02D13/0203F01L1/344F01L1/3442F01L1/356F01L2001/34453F01L2001/34476F02D13/0219Y02T10/18
    • 【課題】クランク軸に対する吸気カム軸の相対回転位相を中間位相に固定する際に、機関出力が急に変動することを好適に抑制することができる。【解決手段】電子制御装置90は、吸気カム軸17の相対回転位相Pinに応じて排気カム軸18の相対回転位相Qexを制御する一方、吸気カム軸17の相対回転位相Pinを中間位相Prockに固定する要求が出された場合には、吸気カム軸17の相対回転位相Pinとは独立して排気カム軸18の相対回転位相Qexが中間位相Prockに対応する位相Qrockに変更されるように排気カム軸18の相対回転位相Qexを制御する制御部91を備える。【選択図】図1
    • 要解决的问题:适当地抑制将进气凸轮轴相对于曲轴固定到中间相的发动机输出的突然变化。解决方案:电子控制装置90包括控制单元91,控制单元91 根据进气凸轮轴17的相对旋转相位Pin控制排气凸轮轴18的相对旋转相位Qex,另一方面,当将进气凸轮轴17的相对旋转相位Pin固定到 发出中间相位Prock,控制排气凸轮轴18的相对旋转相位Qex,使得排气凸轮轴18的相对旋转相位Qex与相对旋转相位Pin相对应的相位Qrock变化为与中间相位Prock对应的相位Qrock 的进气凸轮轴17。
    • 10. 发明专利
    • Valve timing control device of internal combustion engine
    • 内燃机的时间控制装置
    • JP2014181676A
    • 2014-09-29
    • JP2013058400
    • 2013-03-21
    • Toyota Motor Corpトヨタ自動車株式会社
    • YAMAMOTO SHUNSUKENAKAJIMA TOYOKAZU
    • F01L1/356F01L13/00F02D13/02
    • Y02T10/18
    • PROBLEM TO BE SOLVED: To suppress deterioration of an engine operation state caused by change of a relative rotation phase of a cam shaft to a crank shaft from an intermediate lock phase, due to variation of an operation of an oil control valve, to an operation command value during filling a valve timing variable mechanism with oil.SOLUTION: An operation command value of an oil control valve 25 is set to a filling command value stored in a non-volatile RAM of an electronic control device 51 to set an operation mode of the valve 25 to an oil filling mode. A relative rotation phase of an intake cam shaft 12 to a crank shaft 7 may be changed from an intermediate lock phase to an advancing side due to variation of an operation of the oil control valve 25 to the operation command value (filling command value). When the change occurs, the filling command value is updated to a value in the direction to suppress the variation, and the filling command value after updating is stored in the non-volatile RAM of the electronic control device 51.
    • 要解决的问题:为了抑制由于油控制阀的操作的变化而导致的由中间锁定相位将凸轮轴相对于曲轴的相对旋转相位变化引起的发动机运转状态的劣化, 在用油填充气门正时可变机构时的指令值。解决方案:将油控制阀25的操作指令值设定为存储在电子控制装置51的非易失性RAM中的填充指令值,以设定操作模式 阀25进入注油模式。 进气凸轮轴12与曲轴7的相对旋转相位可以由于油控制阀25的操作变化到操作指令值(填充指令值)而从中间锁定相位改变为前进侧。 当发生变化时,填充命令值被更新为抑制变化的方向的值,并且更新后的填充命令值被存储在电子控制装置51的非易失性RAM中。