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    • 2. 发明专利
    • Control device of internal combustion engine
    • 内燃机控制装置
    • JP2014077388A
    • 2014-05-01
    • JP2012225185
    • 2012-10-10
    • Toyota Motor Corpトヨタ自動車株式会社
    • HIRAI TAKUYAKUROKI RENTAROTOMITA SHO
    • F02M25/07F02D21/08F02D45/00F28F1/40F28F21/04
    • Y02T10/121
    • PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine capable of suppressing occurence of a problem of a heat exchange body due to thermal shock.SOLUTION: A control device (100) of an internal combustion engine is applied to an internal combustion engine including an EGR cooler (30) having a heat exchange body (33) disposed in an EGR passage (22) in which an exhaust gas recirculated to a cylinder, of the exhaust gas discharged from the cylinder (11), passes, and a refrigerant passage (34) disposed around the heat exchange body, and includes a control portion executing EGR increase control for increasing an opening of an EGR valve (51) to open and close the EGR passage in comparison with a case when the difference between a temperature of the exhaust gas and a temperature of the heat exchange body is less than a prescribed value, when the difference between a temperature of the exhaust gas existing at an upstream side with respect to the heat exchange body, of the exhaust gas discharged from the cylinder, and the temperature of the heat exchange body is a prescribed value or more.
    • 要解决的问题:提供一种能够抑制由于热冲击而引起的热交换体的问题的内燃机的控制装置。解决方案:将内燃机的控制装置(100)应用于内燃机 内燃机,其包括EGR冷却器(30),所述EGR冷却器具有设置在EGR通路(22)中的热交换体(33),在所述EGR通路(22)中从所述气缸(11)排出的废气中的再循环到气缸的废气通过, 设置在所述热交换体周围的制冷剂通路(34),并且包括执行EGR增加控制的控制部分,用于增加EGR阀(51)的开度以打开和关闭所述EGR通道,与所述EGR阀 当存在于相对于热交换体的上游侧的废气的温度之间的差异,排气的温度和热交换体的温度小于规定值时, 从气缸排出的废气,热交换体的温度为规定值以上。
    • 3. 发明专利
    • Working gas circulation type engine
    • 工作气体循环型发动机
    • JP2011094565A
    • 2011-05-12
    • JP2009250844
    • 2009-10-30
    • Toyota Motor Corpトヨタ自動車株式会社
    • KATO SUSUMUSAWADA DAISAKUKUROKI RENTARO
    • F02B47/10F01N5/02F01P1/06F01P3/22
    • Y02T10/121Y02T10/16
    • PROBLEM TO BE SOLVED: To provide a working gas circulation type engine, effective for suppressing leakage of sealed working gas. SOLUTION: The working gas circulation type engine 1 includes: an engine body 10 having a combustion chamber CC to which fuel and the working gas generating power along with combustion of fuel are supplied; a working gas circulation path 20 connecting an intake port with a discharge port of the combustion chamber CC to prevent release of the working gas to the atmosphere; and a condenser 60 disposed on the working gas circulation path 20 condensing and removing products in burnt exhaust gas containing the working gas and the products made by combustion of the fuel. A whole/part of a second working gas circulation passage 21B connecting the condenser 60 with an exhaust outlet of the engine body 10 in the working gas circulation path 20 is provided with a cooling device 70 suppressing increase in temperature of the second working gas circulation passage 21B. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种有效地抑制密封工作气体泄漏的工作气体循环型发动机。 解决方案:工作气体循环型发动机1包括:发动机主体10,其具有供给燃料和工作气体发电以及燃料燃烧的燃烧室CC; 连接进气口与燃烧室CC的排出口的工作气体循环路径20,以防止工作气体释放到大气中; 以及设置在工作气体循环路径20上的冷凝器60,冷凝和除去包含工作气体的燃烧废气中的产物和由燃料燃烧产生的产物。 在工作气体循环路径20中连接有冷凝器60和发动机主体10的排气口的第二工作气体循环路21B的全部/一部分设置有抑制第二工作气体循环路径的温度上升的冷却装置70 21B。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Variable compression ratio internal combustion engine, and abnormality determining method for variable compression ratio mechanism
    • 可变压缩比内部燃烧发动机和可变压缩比机构的异常确定方法
    • JP2009293497A
    • 2009-12-17
    • JP2008147416
    • 2008-06-04
    • Toyota Motor Corpトヨタ自動車株式会社
    • KUROKI RENTAROKIMURA KOICHICHIBA FUMITO
    • F02D45/00F02B75/04F02D15/04
    • PROBLEM TO BE SOLVED: To provide a technology for determining abnormality of a variable compression ratio mechanism with more accuracy. SOLUTION: A command for changing a compression ratio is output (S103) during the fuel cut-off operation of an internal combustion engine (S101). The rotating speed of a crankshaft at that time is detected (S104), and whether changes in the variation amount of the detected rotating speed before and after the change of the compression ratio belong to a reference range is determined (S105). When the changes in the variation amount of the rotating speed belong to the reference range, the variable compression ratio mechanism is determined to be normal (S106). When the changes in the variation amount of the rotating speed do not belong to the reference range, the variable compression ratio mechanism is determined to be abnormal (S107). COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种更准确地确定可变压缩比机构的异常的技术。 解决方案:在内燃机的燃料切断操作期间输出用于改变压缩比的命令(S103)(S101)。 检测此时的曲轴的转速(S104),判断压缩比变更前后的检测转速的变化量的变化是否属于基准范围(S105)。 当转速的变化量的变化属于基准范围时,可变压缩比机构被确定为正常(S106)。 当转速变化量的变化不属于基准范围时,可变压缩比机构被判定为异常(S107)。 版权所有(C)2010,JPO&INPIT
    • 5. 发明专利
    • Internal combustion engine
    • 内燃机
    • JP2009281207A
    • 2009-12-03
    • JP2008132547
    • 2008-05-20
    • Toyota Motor Corpトヨタ自動車株式会社
    • KUROKI RENTAROSAWADA DAISAKU
    • F02D19/02F01N13/00F01N99/00F02B47/10F02D21/02F02D21/04F02D21/06F02M21/02F02M25/00
    • F02D9/08F02B43/10F02M25/10F02M25/12Y02T10/121Y02T10/32
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine capable of improving startability.
      SOLUTION: In the engine 1 including a circulation route 30 in which argon which is working medium is circulated between a combustion chamber 15 and the same, and using hydrogen for fuel during operation, oxygen is supplied during start of the engine 1 with supply rate increased as compared to oxygen supply rate during normal operation. All of hydrogen supplied to the combustion chamber 15, thereby, can be reacted with oxygen and burn. Namely, mixing of hydrogen and oxygen tends to be deteriorated since turbulence of gas is small during start. Consequently, probability of encounter of hydrogen and oxygen can be increased by supplying oxygen higher than theoretical rate to the supplied hydrogen even if mixing is somewhat bad. As a result, combustion during start can be improved and startability can be improved.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供能够提高起动性的内燃机。 解决方案:在包括循环路径30的发动机1中,其中在工作介质中的氩在燃烧室15与其之间循环,并且在运行期间使用氢气作为燃料,在发动机1起动期间, 供应量比正常运行时的供氧量提高。 供应到燃烧室15的氢气全部可以与氧气反应并燃烧。 即,由于起动时气体的湍流小,所以氢和氧的混合倾向于劣化。 因此,即使混合有些差,也可以通过向所提供的氢提供比理论速率高的氧气来提高遇到氢气和氧气的可能性。 结果,能够提高起动时的燃烧,提高起动性。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Control device for variable compression ratio internal combustion engine
    • 可变压缩比内燃机的控制装置
    • JP2009264229A
    • 2009-11-12
    • JP2008114188
    • 2008-04-24
    • Toyota Motor Corpトヨタ自動車株式会社
    • KIMURA KOICHICHIBA FUMITONAKASAKA YUKIHIROKUROKI RENTARO
    • F02D15/04F01N3/18F01N13/08F02B75/04F02M25/00
    • PROBLEM TO BE SOLVED: To provide a control device for a variable compression ratio internal combustion engine for accelerating activation of a catalyst and reducing quantity of hydrocarbon emitted to atmosphere from the engine during a period until the catalyst is activated after start of the engine or the like. SOLUTION: This control device is applied to the engine provided with a mechanical compression ratio change mechanism, and "an upstream catalyst 33 and a hydrocarbon adsorption device 34" disposed in the exhaust gas passage. The control device emits exhaust gas from the engine to atmosphere after making the same pass through the upstream catalyst and the hydrocarbon adsorption device if temperature of the upstream catalyst is lower than a prescribed temperature. Consequently, hydrocarbon is adsorbed by the hydrocarbon adsorption device. The control device drops mechanical compression ratio then. Accordingly, temperature of the upstream catalyst immediately rises. When temperature of the upstream catalyst reaches the prescribed temperature, the control device returns the mechanical compression ratio to a normal value with exhaust gas from the engine passing through the upstream catalyst and not passing through the hydrocarbon adsorption device. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种可变压缩比内燃机的控制装置,用于加速催化剂的活化和减少从发动机排放到大气中的碳氢化合物的量,直到催化剂在起动后为止 发动机等。 解决方案:将该控制装置应用于设置有机械压缩比变化机构的发动机和设置在排气通路中的上游催化剂33和烃吸附装置34。 如果上游催化剂的温度低于规定温度,则控制装置在通过上游催化剂和烃吸附装置后,从发动机向大气排放废气。 因此,碳氢化合物被烃吸附装置吸附。 控制装置会降低机械压缩比。 因此,上游催化剂的温度立即上升。 当上游催化剂的温度达到规定温度时,控制装置通过来自发动机的废气通过上游催化剂而不通过烃吸附装置将机械压缩比恢复到正常值。 版权所有(C)2010,JPO&INPIT
    • 7. 发明专利
    • Controller of variable compression ratio internal combustion engine
    • 可变压缩比率内燃机的控制器
    • JP2009250163A
    • 2009-10-29
    • JP2008101250
    • 2008-04-09
    • Toyota Motor Corpトヨタ自動車株式会社
    • KIMURA KOICHICHIBA FUMITONAKASAKA YUKIHIROKUROKI RENTARO
    • F02D15/04F02B75/04F02D43/00
    • F02D41/126F02D15/04F02D41/123F02D2200/0802
    • PROBLEM TO BE SOLVED: To provide an internal combustion engine controller capable of making an occluded oxygen amount of a catalyst rapidly approach an appropriate value by decreasing a mechanical compression ratio to promptly raise a catalyst temperature after the end of a fuel cutting (FC) operation only when the catalyst temperature is lowered during the fuel cutting (FC) operation. SOLUTION: The controller is applied to an engine equipped with a compression ratio varying mechanism for varying the mechanical compression ratio and a catalyst in an exhaust passage. The controller determines a basic target mechanical compression ratio εmtgtb at a normal operation depending on the operational state of the engine (step 710). When the catalyst temperature has reached a temperature below, e.g., a given temperature during the fuel cutting operation, a compression ratio drop flag XD is set at "1". When the flag is set to "1", the controller sets, as "a final target mechanical compression ratio εmtgt", "a compression ratio created by decreasing "the basic target mechanical compression ratio εmtgtb" by a given mechanical compression ratio B (steps 720, 750 or 770). COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种能够使催化剂的吸留氧量快速接近适当值的内燃机控制器,通过降低机械压缩比来迅速提高燃料切断结束后的催化剂温度( FC)操作,只有在燃料切割(FC)操作期间催化剂温度降低时。 解决方案:将控制器应用于配备有用于改变机械压缩比的压缩比变化机构的发动机和排气通道中的催化剂。 控制器根据发动机的运行状态来确定正常运行时的基本目标机械压缩比εmtgtb(步骤710)。 当催化剂温度达到低于燃料切割操作期间的给定温度的温度时,压缩比下降标志XD被设定为“1”。 当标志设置为“1”时,控制器将“最终目标机械压缩比εmtgt”设定为“通过将基本目标机械压缩比εmtgtb”减小而得到的压缩比通过给定的机械压缩比B(步骤 720,750或770)。版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Variable compression ratio internal combustion engine
    • 可变压缩比内燃机
    • JP2009079545A
    • 2009-04-16
    • JP2007249447
    • 2007-09-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • CHIBA FUMITOKUROKI RENTARO
    • F02D15/04F02D41/12F02D45/00
    • PROBLEM TO BE SOLVED: To provide a technology by which combustion stability in an internal combustion engine can be more surely maintained in control for changing a compression ratio at the start of the internal combustion engine. SOLUTION: After full explosion has been performed at the start of a variable compression ratio internal combustion engine (S101), a combustion state in one cylinder is detected (S103) to derive a target compression ratio in the next cycle of the cylinder according to the combustion state in the cylinder (S104). As a result, a target compression ratio is determined for each cycle of the cylinder to control a compression ratio. COPYRIGHT: (C)2009,JPO&INPIT
    • 解决的问题:提供一种可以更可靠地保持内燃机的燃烧稳定性以改变内燃机启动时的压缩比的控制的技术。 解决方案:在可变压缩比内燃机开始完成爆炸之后(S101),检测到一个气缸中的燃烧状态(S103),以在气缸的下一个循环中导出目标压缩比 根据气缸内的燃烧状态(S104)。 结果,针对气缸的每个循环确定目标压缩比以控制压缩比。 版权所有(C)2009,JPO&INPIT
    • 9. 发明专利
    • Starting control device of internal combustion engine
    • 内燃机起动控制装置
    • JP2009013916A
    • 2009-01-22
    • JP2007178115
    • 2007-07-06
    • Toyota Motor Corpトヨタ自動車株式会社
    • KUROKI RENTAROICHINOSE HIROKIOTSUKA TAKAYUKI
    • F02D29/02F02D9/02F02N19/00
    • F02N19/005F01L9/04F01L2009/0411F01N2240/36F02B29/02F02B33/32F02D13/0242F02D41/0002F02D41/042F02D41/065F02D2009/0249F02D2009/025F02D2009/0252F02D2013/0292F02M23/06F02M69/044F02N2019/008Y02T10/146Y02T10/18Y02T10/42
    • PROBLEM TO BE SOLVED: To provide a starting control device of an internal combustion engine capable of quickly starting the internal combustion engine, by improving combustion of a cylinder of stopping a piston in an intake stroke when starting the internal combustion engine.
      SOLUTION: This starting control device of the internal combustion engine is applied to a port injection type engine 1, and starts the internal combustion engine 1 by supplying fuel to an intake stroke cylinder of stopping the piston 5 in the intake stroke when a predetermined starting condition is realized, and has a throttle valve 20 switchable to a closing position P1 for reducing the flow passage cross-sectional area of an intake port 3a and an opening position P2 for fully opening the intake port 3a, and starts the engine 1 after switching the throttle valve 20 to the closing position P1 when determining that the piston 5 of the intake stroke cylinder stops in a predetermined crank angle range θ by determining whether or not the piston 5 of the intake stroke cylinder stops in the predetermined crank angle range θ set in the last stage of the intake stroke when the predetermined starting condition is realized.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够快速启动内燃机的内燃机的启动控制装置,通过改善在启动内燃机时在进气冲程中停止活塞的气缸的燃烧。 解决方案:将内燃机的起动控制装置应用于端口喷射式发动机1,并通过向进气冲程缸内供给燃料来启动内燃机1,该进气冲程气缸在进气冲程中停止活塞5 实现了预定的启动条件,并且具有切换到关闭位置P1的节流阀20,用于减小进气口3a的流路横截面积和用于完全打开进气口3a的打开位置P2,并且启动发动机1 在通过判定进气冲程气缸的活塞5是否停止在规定的曲柄角范围内的情况下,在将进气冲程气缸的活塞5停止在预定的曲柄角范围θ内时,将节流阀20切换到关闭位置P1 θ设定在进气行程的最后阶段,当达到预定的启动条件时。 版权所有(C)2009,JPO&INPIT
    • 10. 发明专利
    • Stop controller of internal combustion engine
    • 内燃机停止控制器
    • JP2008303845A
    • 2008-12-18
    • JP2007153478
    • 2007-06-11
    • Toyota Motor Corpトヨタ自動車株式会社
    • OTSUKA TAKAYUKIICHINOSE HIROKIKUROKI RENTARO
    • F02D29/02
    • PROBLEM TO BE SOLVED: To provide a stop controller of an internal combustion engine capable of performing stop control with enhanced responsiveness by shortening the time required by the time when the engine is actually stopped after the requirements for stoppage of the engine are satisfied.
      SOLUTION: In this stop controller of an internal combustion engine for so controlling the operation of the internal combustion engine that it is stopped at a target stop position when the predetermined requirements for stoppage are satisfied, the operations of the devices providing an external force to the engine are so controlled that the external load is reduced when the requirements for stoppage are satisfied (S4). A fuel supply to the engine is temporarily stopped in association with the operation control of the devices (S8, S9, S11). Then, the operating condition of the engine is so controlled that the rotational speed of the engine comes into a fuel-cut allowable rotational speed range corresponding to a target stop position (S12), and the fuel supply to the engine is stopped under the condition that the rotational speed of the engine comes into the fuel-cut allowable rotational speed range (S14).
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种内燃机的停止控制器,其能够通过在满足发动机停止要求之后缩短发动机实际停止时间所需的时间,从而以更高的响应性进行停止控制 。 解决方案:在内燃机的该停止控制器中,当满足预定的停止要求时,用于控制内燃机的运转,使其停止在目标停止位置,提供外部的装置的操作 控制发动机的力被控制为当满足停止要求时外部负载减小(S4)。 发动机的燃料供应与设备的操作控制相关联地暂时停止(S8,S9,S11)。 然后,控制发动机的运转状态,使发动机的转速进入与目标停止位置对应的燃料切断允许转速范围(S12),在发动机的燃料供给停止的条件下 发动机的转速进入燃料切割允许转速范围(S14)。 版权所有(C)2009,JPO&INPIT