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51. 发明专利

JP2009156028A Combustion control system for internal combustion engine 审中-公开
标题翻译：内燃机燃烧控制系统
公开(公告)号：JP2009156028A
公开(公告)日：2009-07-16
申请号：JP2007331423
申请日：2007-12-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： IBUKI TAKU , NAKAYAMA SHIGEKI , MATSUNAGA AKIO
IPC分类号： F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a technology for suitably suppressing a misfire depending on the operating state of an internal combustion engine. SOLUTION: This combustion control system comprises an acquiring means for acquiring a crank angle range where the flow speed of a squish flow generated in a cylinder is a flow speed to activate the combustion of fuel, and a setting means for setting a timing delay guard for fuel injection timing according to the crank angle of a maximum-delay angle end in the crank angle range. The system calculates ignition timing for the fuel injection timing according to the operating state of the internal combustion engine to control fuel injection so that the fuel injection timing is on an advance side beyond the timing delay guard. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供根据内燃机的运行状态适当地抑制失火的技术。解决方案：该燃烧控制系统包括：获取装置，用于获取在气缸中产生的挤压流动的流速是燃料燃烧的流速的曲柄角范围;以及设定装置，根据曲柄角范围内的最大延迟角度端部的曲柄角度，进行燃料喷射正时的延迟保护。该系统根据内燃机的运转状态来计算燃料喷射正时的点火正时，以控制燃料喷射，使得燃料喷射正时超出定时延迟保护装置。版权所有（C）2009，JPO＆INPIT

52. 发明专利

JP2008303825A Exhaust gas recirculating device of internal combustion engine 有权
标题翻译：内燃机排气再循环装置
公开(公告)号：JP2008303825A
公开(公告)日：2008-12-18
申请号：JP2007152832
申请日：2007-06-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAYAMA SHIGEKI , MATSUNAGA AKIO , ONISHI TOMOMI , IEMURA AKIYUKI
IPC分类号： F02M25/07 , F02D21/08 , F02D41/12 , F02D43/00
CPC分类号： F02D41/144 , F02D41/0072 , F02D41/123 , F02M26/05 , F02M26/06 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculating device of an internal combustion engine capable of estimating a flow rate of recirculating exhaust gas of an intake passage via an EGR passage set as an estimation object, while restraining a cost increase in the internal combustion engine having a plurality of EGR passages. SOLUTION: This exhaust gas recirculating device of the internal combustion engine 1 has a low pressure EGR passage 20, a high pressure EGR passage 21, a low pressure EGR valve 23 and a high pressure EGR valve 24, and has an air-fuel ratio sensor 12 arranged in an exhaust passage 4 on the upstream side of a connecting position of the low pressure EGR passage 20. An ECU 30 respectively estimates the flow rate of the exhaust gas flowing in the low pressure EGR passage 20 and the high pressure EGR passage 21 based on the oxygen concentration acquired by the air-fuel ratio sensor 12 in the timing when the exhaust gas recirculated to the intake passage 3 respectively reaches the air-fuel ratio sensor 12 via the low pressure EGR passage 20 and the high pressure EGR passage 21 when a predetermined fuel cut condition is realized. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：提供一种内燃机的废气再循环装置，其能够经由设定为估计对象的EGR通路来估计进气通路的再循环排气的流量，同时抑制成本增加所述内燃机具有多个EGR通道。解决方案：内燃机1的排气再循环装置具有低压EGR通路20，高压EGR通路21，低压EGR阀23和高压EGR阀24，燃料比传感器12配置在低压EGR通路20的连接位置的上游侧的排气通路4中。ECU30分别估计在低压EGR通路20中流动的废气的流量和高压基于由空气燃料比传感器12获取的氧气浓度的EGR通路21在再循环到进气通路3的排气分别经由低压EGR通路20到达空燃比传感器12的时刻和高压当实现预定的燃料切断状态时，EGR通道21。版权所有（C）2009，JPO＆INPIT

53. 发明专利

JP2008291752A Feedback control system 有权
标题翻译：反馈控制系统
公开(公告)号：JP2008291752A
公开(公告)日：2008-12-04
申请号：JP2007138269
申请日：2007-05-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAYAMA SHIGEKI
IPC分类号： F02M25/07 , F02D21/08 , F02D23/00
CPC分类号： F02D41/1401 , F02D41/0007 , F02D41/0072 , F02D2041/1409 , F02D2041/1422 , F02M26/49
摘要： PROBLEM TO BE SOLVED: To provide a technique for improving the convergence and stability of feedback control with a variable value as a feedback gain. SOLUTION: A base gain as a constant value or a variable gain attenuated from a value greater than the base gain to the base gain is set as an F/B gain in accordance with the state of a control system and, in an F/B control system calculating an input value based on a function with at least two terms of proportional and integral terms as variables, the integral term is recalculated when a determination value obtained by assigning the basic proportional term calculated with the base gain and the normal integral term calculated with the F/B gain in accordance with the state of the control system respectively to the proportional term and integral term portions of the function is greater than an upper-limit value. The integral term is recalculated such that the value obtained by assigning the basic proportional term to the proportional term portion of the function and the recalculated integral term to the integral term portion thereof is not more than the upper-limit value. When the integral term is recalculated, a value is used as the input value which is obtained by assigning the normal proportional term calculated with the F/B gain in accordance with the state of the control system to the proportional term portion of the function and the recalculated integral term to the integral term portion thereof. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于提高具有可变值作为反馈增益的反馈控制的收敛和稳定性的技术。解决方案：根据控制系统的状态将基本增益作为常数值或从大于基本增益的基本增益的值衰减到可变增益的基准增益设置为F / B增益，并且在 F / B控制系统基于具有至少两个比例和积分项的项的函数来计算输入值作为变量，当通过分配由基本增益和正常值计算的基本比例项获得的确定值时，重新计算积分项根据控制系统的状态分别与功能的比例项和积分项部分的F / B增益计算的积分项大于上限值。积分项被重新计算，使得通过将基本比例项分配给函数的比例项部分而获得的值和重新计算的积分项到其积分项部分而不大于上限值。当重新计算积分项时，将值用作通过根据控制系统的状态将F / B增益计算的法定比例项分配给函数的比例项部分而获得的输入值，并且重新计算其积分项的积分项。版权所有（C）2009，JPO＆INPIT

54. 发明专利

JP2008261271A Exhaust gas recirculating device of internal combustion engine 审中-公开
标题翻译：内燃机排气再循环装置
公开(公告)号：JP2008261271A
公开(公告)日：2008-10-30
申请号：JP2007103990
申请日：2007-04-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： IEMURA AKIYUKI , MATSUNAGA AKIO , NAKAYAMA SHIGEKI , ONISHI TOMOMI
IPC分类号： F02D45/00 , F01N3/24 , F01N3/36 , F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculating device of an internal combustion engine capable of estimating a flow rate of exhaust gas flowing through an exhaust gas treatment catalyst with a simple structure.
SOLUTION: In the exhaust gas recirculating device of the internal combustion engine provided with the exhaust gas treatment catalyst 10 arranged in the exhaust passage 5, a fuel addition valve 9 for adding fuel from an upstream of the exhaust gas treatment catalyst 10, an EGR passage 20 for communicating the exhaust passage 5 downstream of the exhaust gas treatment catalyst 10 and an intake passage 4, an A/F sensor 33 arranged at the exhaust passage 5 downstream of the exhaust gas treatment catalyst 10 and upstream of a connection position of the EGR passage 20, an oxygen concentration Roxe of the exhaust gas in a state that the internal combustion engine 1 is operated in a predetermined operation state and the fuel is not added from the fuel addition valve 9 and an oxygen concentration Roxead of the exhaust gas in a state that the internal combustion engine 1 is operated in a predetermined operation state and the fuel is added from the fuel addition valve 9 are acquired and the flow rate of the exhaust gas flowing through the exhaust gas treatment catalyst 10 is estimated based on these oxygen concentrations.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够以简单的结构估计流过废气处理催化剂的废气的流量的内燃机的废气再循环装置。解决方案：在具有布置在排气通道5中的排气处理催化剂10的内燃机的废气再循环装置中，用于从废气处理催化剂10的上游添加燃料的燃料添加阀9，用于将废气处理催化剂10和进气通道4下游的排气通路5连通的EGR通道20，布置在废气处理催化剂10下游的排气通道5处的A / F传感器33和连接位置在内燃机1以预定的运转状态运转，燃料不与燃料添加阀9相加的状态下的废气的氧浓度Roxe和排气的氧浓度Roxead 获取内燃机1在预定操作状态下操作并且从燃料添加阀9添加燃料的状态下的气体，基于这些氧浓度来估计流经废气处理催化剂10的排气的速度。版权所有（C）2009，JPO＆INPIT

55. 发明专利

JP2008215210A Exhaust emission control system for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制系统
公开(公告)号：JP2008215210A
公开(公告)日：2008-09-18
申请号：JP2007054129
申请日：2007-03-05
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAYAMA SHIGEKI , MATSUNAGA AKIO , IEMURA AKIYUKI , ONISHI TOMOMI
IPC分类号： F01N3/20 , B01D46/42 , B01D53/94 , F01N3/02 , F01N3/08 , F01N3/10 , F01N3/24 , F01N3/28 , F02D21/08 , F02M25/07
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide a technology for activating an exhaust gas purifying catalyst while suppressing the degradation of fuel efficiency and exhaust performance. SOLUTION: This exhaust emission control system comprises a high pressure EGR device for returning exhaust gas on the upstream side of a turbocharger turbine into an intake passage on the downstream side of a compressor, a low pressure EGR device for returning exhaust gas on the downstream side of the turbine into an intake passage on the upstream side of the compressor, and an exhaust emission control device provided in the exhaust passage on the downstream side of the turbine and having the exhaust gas purifying catalyst for accumulating and purifying components to be purified in exhaust gas. In a non-activated condition that the exhaust gas purifying catalyst is not sufficiently activated, an intake air amount, a high pressure EGR gas amount and a low pressure EGR gas amount are controlled to increase the temperature of the exhaust gas purifying catalyst. At this time, in accordance with a control pattern of suppressing an increase of the component to be purified whose accumulated amount in the exhaust emission control device exceeds a predetermined criterion and permitting the increase of the component to be purified whose accumulated amount does not exceed the criterion, the intake air amount, the high pressure EGR gas amount and the low pressure EGR gas amount are controlled. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种在抑制燃料效率和排气性能劣化的同时激活废气净化催化剂的技术。解决方案：该废气排放控制系统包括用于将涡轮增压器涡轮机的上游侧的排气返回到压缩机的下游侧的进气通路的高压EGR装置，用于将废气返回的低压EGR装置涡轮机的下游侧成为压缩机上游侧的进气通路，在排气通路中设置在涡轮下游侧的排气净化催化剂，并且具有用于蓄积和净化部件的排气净化催化剂在废气中净化。在废气净化催化剂不能充分活化的非活化状态下，控制进气量，高压EGR气体量和低压EGR气体量，以提高废气净化催化剂的温度。此时，根据抑制废气排放控制装置中的累积量超过预定标准的待净化成分的增加的控制模式，并且允许累积量不超过预定标准的待净化成分的增加标准，进气量，高压EGR气体量和低压EGR气体量被控制。版权所有（C）2008，JPO＆INPIT

56. 发明专利

JP2008180175A Exhaust emission control system for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制系统
公开(公告)号：JP2008180175A
公开(公告)日：2008-08-07
申请号：JP2007014959
申请日：2007-01-25
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ONISHI TOMOMI , MATSUNAGA AKIO , NAKAYAMA SHIGEKI
IPC分类号： F02D21/08 , F02D41/04 , F02D43/00 , F02D45/00 , F02M25/07
CPC分类号： F02D41/0007 , F02B29/0406 , F02D9/04 , F02D41/0065 , F02D41/123 , F02D2041/0017 , F02M25/06 , F02M26/05 , F02M26/06 , F02M26/10 , F02M26/15 , F02M26/23 , Y02T10/144 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide a technology inhibiting poor combustion and increase of HC emission in recovery from fuel cut operation to normal operation under low temperature environment, in an internal combustion engine provided with a low pressure EGR device. SOLUTION: This system is provided with a turbocharger including a compressor provided in an intake passage and a turbine provided in an exhaust passage, a low pressure EGR means returning part of exhaust gas to an internal combustion engine via a low pressure EGR passage connecting the exhaust passage in a downstream of the turbine and the intake passage in an upstream of the compressor, a low pressure EGR valve provided in the low pressure EGR passage and changing passage section area of the low pressure EGR passage, and a valve control means controlling open and close of the low pressure EGR valve. When it is judged that the internal combustion engine is under a predetermined low temperature environment, the low pressure EGR valve is opened during fuel cut operation condition of the internal combustion engine. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在具有低压EGR装置的内燃机中，提供抑制燃烧不良的技术，并且在低温环境下从燃料切断运转到正常运转的HC排放增加。解决方案：该系统设置有涡轮增压器，其包括设置在进气通道中的压缩机和设置在排气通道中的涡轮机，低压EGR装置将废气的一部分经由低压EGR通路返回到内燃机将涡轮下游的排气通路与压缩机的上游侧的进气通路连接，设置在低压EGR通路中的低压EGR阀和低压EGR通路的变更通路部区域，以及阀控制单元控制低压EGR阀的打开和关闭。当判定内燃机处于预定的低温环境下时，低压EGR阀在内燃机的燃料切断运转状态下打开。版权所有（C）2008，JPO＆INPIT

57. 发明专利

JP2008128106A Control system of compression ignition type internal combustion engine 审中-公开
标题翻译：压缩点火式内燃机控制系统
公开(公告)号：JP2008128106A
公开(公告)日：2008-06-05
申请号：JP2006314372
申请日：2006-11-21
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KANEKO TOMOHIRO , FUJIWARA KIYOSHI , NAKAYAMA SHIGEKI , KOYAMA TAKASHI , IBUKI TAKU
IPC分类号： F02D21/08 , F02D23/00 , F02D41/02 , F02D41/12 , F02D43/00 , F02D45/00
CPC分类号： Y02T10/144
摘要： PROBLEM TO BE SOLVED: To quickly bring an internal combustion engine to a premixed combustion operation state from a fuel cut operation state, in a control system of a compression ignition type internal combustion engine for performing premixed combustion operation by introducing EGR gas of a predetermined quantity or more into a combustion chamber.
SOLUTION: This invention quickly reduces the oxygen concentration in a cylinder up to the concentration suitable for the premixed combustion operation, by reducing the suction air volume, while shortening a transport delay period of the EGR gas, by operating a negative pressure generator, when the internal combustion engine transfers to the premixed combustion operation state from the fuel cut operation state, by arranging the negative pressure generator in an intake passage on the downstream side of a connecting part of an EGR passage.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了快速地将内燃机从燃料切断操作状态引入预燃燃烧操作状态，在压缩点火式内燃机的控制系统中，通过引入EGR气体进行预混合燃烧操作预定量以上的燃烧室。解决方案：本发明通过减少吸入空气体积，同时缩短EGR气体的输送延迟时间，通过操作负压发生器，迅速将气缸中的氧气浓度降至适合于预混合燃烧操作的浓度当内燃机从燃料切断动作状态转移到预混合燃烧运转状态时，通过将负压发生器配置在EGR通路的连接部的下游侧的进气通路内。版权所有（C）2008，JPO＆INPIT

58. 发明专利

JP2008106706A Exhaust gas recirculation system for internal combustion engine 有权
标题翻译：用于内燃机的排气回送系统
公开(公告)号：JP2008106706A
公开(公告)日：2008-05-08
申请号：JP2006292005
申请日：2006-10-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： ONISHI TOMOMI , NAKAYAMA SHIGEKI , MIYAKE TERUHIKO , NAGAE MASAHIRO , SHIMIZU HAJIME , MATSUMOTO ISAO , ONO TOMOYUKI , MURATA HIROKI , YAMASHITA AKIRA , HAGA HIROYUKI
IPC分类号： F02M25/07 , F02D21/08 , F02D23/00
CPC分类号： Y02T10/121 , Y02T10/144
摘要： PROBLEM TO BE SOLVED: To provide a technology that makes it possible to achieve more reliable EGR rate control response in an exhaust gas recirculation system for an internal combustion engine in which a high pressure EGR device and a low pressure EGR device are used in combination. SOLUTION: The exhaust gas recirculation system includes the high pressure EGR means for recirculating exhaust gas through a high pressure EGR passage connecting an exhaust passage upstream of a turbine of a turbocharger and an intake passage downstream of a compressor, the low pressure EGR means for recirculating exhaust gas through a low pressure EGR passage connecting the exhaust passage downstream of the turbine and the intake passage upstream of the compressor, a high pressure EGR valve arranged in the high pressure EGR passage and a low pressure EGR valve arranged in the low pressure EGR passage. In an EGR mode in which the low pressure EGR means and the high pressure EGR means are used in combination, essentially, feedback control of the degree of opening of the high pressure EGR valve is executed and open-loop control of the degree of opening of the low pressure EGR valve is executed. When the high pressure EGR valve opening degree reaches a predetermined operating threshold, temporary feedback control of the low pressure EGR valve opening degree is executed. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种能够在其中使用高压EGR装置和低压EGR装置的内燃机的排气再循环系统中实现更可靠的EGR率控制响应的技术结合。解决方案：排气再循环系统包括高压EGR装置，用于通过将涡轮增压器的涡轮上游的排气通道和压缩机下游的进气通道连接的高压EGR通道再循环排气，低压EGR 用于使废气通过连接涡轮下游的排气通道和压缩机上游的进气通道的低压EGR通道的装置，设置在高压EGR通道中的高压EGR阀和布置在低压EGR通道中的低压EGR阀压力EGR通道。在其中组合使用低压EGR装置和高压EGR装置的EGR模式中，基本上执行高压EGR阀的打开程度的反馈控制，并且开度控制开度执行低压EGR阀。当高压EGR阀开度达到预定操作阈值时，执行低压EGR阀开度的临时反馈控制。版权所有（C）2008，JPO＆INPIT

59. 发明专利

JP2008101592A Control system of compression ignition type internal combustion engine 有权
标题翻译：压缩点火式内燃机控制系统
公开(公告)号：JP2008101592A
公开(公告)日：2008-05-01
申请号：JP2006286787
申请日：2006-10-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KANEKO TOMOHIRO , FUJIWARA KIYOSHI , NAKAYAMA SHIGEKI , KOYAMA TAKASHI , IBUKI TAKU
IPC分类号： F02D43/00 , F02D21/08 , F02D41/02 , F02D41/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a control system of a compression ignition type internal combustion engine performing premix combustion operation by introducing EGR gas of a predetermined amount or more into a cylinder and swiftly and suitably shifting the internal combustion engine from a fuel-cut operation state to a premix combustion operation state.
SOLUTION: During a period from the termination of fuel cut operation of the internal combustion engine until oxygen concentration in the cylinder decreases to desired concentration, a swirl flow is caused in the cylinder and the internal combustion engine is operated in diffusion combustion so that increasing correction of a fuel injection quantity can be made without involving misfire and increase of smoke and therefore the oxygen concentration in EGR gas and oxygen concentration in the cylinder promptly decrease.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过将预定量的或更多的EGR气体引入气缸中来进行预混合燃烧操作的压燃式内燃机的控制系统，并迅速且适当地从内燃机将燃料切割操作状态到预混合燃烧操作状态。解决方案：在从内燃机的燃料切断操作终止直到气缸中的氧气浓度降低到所需浓度的期间内，在气缸中引起涡流，并且内燃机在扩散燃烧中运行，可以在不引起失火和烟雾增加的情况下进行燃料喷射量的增加校正，因此EGR气体中的氧浓度和气缸中的氧浓度迅速降低。版权所有（C）2008，JPO＆INPIT

60. 发明专利

JP2008025374A Ignition timing control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的点火时序控制装置
公开(公告)号：JP2008025374A
公开(公告)日：2008-02-07
申请号：JP2006195895
申请日：2006-07-18
申请人： 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
发明人： SATO TAKAAKI , NAKASE YOSHIHIRO , NAKAYAMA SHIGEKI , IBUKI TAKU
IPC分类号： F02D21/08 , F02D13/02 , F02D45/00 , F02M25/07
CPC分类号： Y02T10/121 , Y02T10/18
摘要： PROBLEM TO BE SOLVED: To provide an ignition timing control device suitably control ignition timing and a combustion state of fuel in an internal combustion engine.
SOLUTION: The ignition timing control device comprises: an external EGR device recirculating part of exhaust from an internal combustion engine to a combustion chamber; an internal EGR device variably controlling valve timing so as to leave over part of burnt gas in the combustion chamber; an ignition timing acquiring means S103 estimating or detecting actual ignition timing of the fuel; correcting means S106, S107 correcting an internal EGR gas quantity so that the actual ignition timing acquired by the ignition timing acquiring means matches with a target ignition timing, and correcting an external EGR gas quantity so as to offset change in in-cylinder oxygen concentration along with the correction of the internal EGR gas quantity.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供点火正时控制装置适当地控制内燃机中的点火正时和燃料的燃烧状态。点火正时控制装置包括：外部EGR装置将排气部分从内燃机再循环到燃烧室; 内部EGR装置可变地控制气门正时以便在燃烧室中留下一部分燃烧气体; 点火正时获取装置S103估计或检测燃料的实际点火正时; 校正装置S106，S107，校正内部EGR气体量，使得由点火正时获取装置获取的实际点火正时与目标点火正时相匹配，并校正外部EGR气体量，以抵消沿缸内氧浓度的变化与内部EGR气体量的校正。版权所有（C）2008，JPO＆INPIT

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