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1. 发明专利

JP2004150383A Internal combustion engine operated while switching compressed self-ignition combustion and spark ignition combustion 有权
公开(公告)号：JP2004150383A
公开(公告)日：2004-05-27
申请号：JP2002318306
申请日：2002-10-31
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： NAKADA KOICHI , KIKORI SHIGEO , KATSUMATA MASAJI , KOBAYASHI TATSUO , CHIBA FUMITO , NAKANO MICHITAKA
IPC分类号： F02P5/15 , F02B1/12 , F02B11/00 , F02D13/02 , F02D41/02 , F02D41/04 , F02D41/30 , F02D41/34 , F02D41/40 , F02D45/00
CPC分类号： F02D41/307 , F02B1/12 , F02D41/3029 , F02D41/3035
摘要： PROBLEM TO BE SOLVED: To suitably switch operating conditions of an internal combustion engine from compressed self-ignition operation to spark ignition operation.
SOLUTION: When the operating conditions are switched from the compressed self-ignition operation to the spark ignition operation according to increase of target torque, a quantity of fuel injection is once gradually increased in a condition of stratified spark ignition operation and air-fuel ratio of a fuel-air mixture is gradually decreased. Then, when the air-fuel ratio is decreased to a predetermined value, the operation is switched into the spark ignition operation while the air-fuel ratio is decreased to a theoretical air-fuel ratio at a stretch. Thus, the operating conditions can be stably switched by passing through the stratified spark ignition operation, and output torque is not rapidly increased and the operating conditions can be switched without sense of incongruity by switching the operating conditions while gradually increasing the fuel. Further, discharge of atmospheric pollutants such as nitrogen oxides is not increased by switching the air-fuel ratio to the theoretical air-fuel ratio at a stretch when the air-fuel ratio reaches predetermined air-fuel ratio.
COPYRIGHT: (C)2004,JPO

2. 发明专利

JP2004116446A Switching control of combustion method in variable combustion method engine 有权
标题翻译：可变燃烧方法发动机燃烧方法的切换控制
公开(公告)号：JP2004116446A
公开(公告)日：2004-04-15
申请号：JP2002282863
申请日：2002-09-27
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： KIKORI SHIGEO , KATSUMATA MASAJI , KOBAYASHI TATSUO , CHIBA FUMITO , NAKADA KOICHI , NAKANO MICHITAKA
IPC分类号： F02B69/06 , F02B1/12 , F02B11/00 , F02D13/02 , F02D41/02 , F02D41/30 , F02M25/07 , F02P5/15
CPC分类号： F02B1/12 , F02D41/3035 , F02D41/3058 , F02D41/3064
摘要： PROBLEM TO BE SOLVED: To make a stable, quick switch to self-ignition in an engine which uses both spark ignition and self-ignition.
SOLUTION: A combustion method of the engine is switched to self-ignition of two cycles or spark ignition of four cycles in accordance with rotation speed and required load. At the time of switching from the spark ignition to the self-ignition, processing for raising temperature of compression end is applied in order to realize stable self-ignition when temperature of exhaust is low, whereas the processing is skipped when temperature of exhaust is high. Quick switching can be realized while simultaneously starting stable self-ignition by judging whether not or processing for raising the temperature of the compression end is required on the basis of the temperature of the exhaust.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：在使用火花点火和自点火的发动机中，使自动点火稳定快速切换。
解决方案：根据转速和所需负载，发动机的燃烧方式切换为两个循环的自点火或四个循环的火花点火。在从火花点火切换到自点火时，施加压缩端温度的加工，以便在排气温度低时实现稳定的自点火，而当排气温度高时，跳过加工。可以通过基于排气的温度判断是否需要提高压缩端的温度来进行加热，同时开始稳定的自点火，实现快速切换。版权所有（C）2004，JPO

3. 发明专利

JP2004132304A Variable cycle engine to perform four-cycle operation and two-cycle operation 审中-公开
公开(公告)号：JP2004132304A
公开(公告)日：2004-04-30
申请号：JP2002298971
申请日：2002-10-11
申请人： Toyota Central Res & Dev Lab Inc , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社豊田中央研究所
发明人： KOBAYASHI TATSUO , KIKORI SHIGEO , KATSUMATA MASAJI , CHIBA FUMITO , NAKADA KOICHI , NAKANO MICHITAKA
IPC分类号： F02B69/06 , F02D13/02 , F02D15/00 , F02D41/02 , F02D41/04 , F02D43/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To smoothly switch a four-cycle operation and a two-cycle operation in a variable cycle engine. SOLUTION: An engine has a first operational mode to perform the four-cycle operation and the two-cycle operation while igniting fuel in a fuel chamber by an ignition unit. The first operational mode comprises a first normal mode of relatively high real compression ratio and a first transition mode of relatively low real compression ratio which is performed before starting the first normal mode after completing the second operational mode. The four-cycle operation is smoothly switched from the two-cycle operation without any knocking by performing the operation in the first transition mode of relatively low real compression ratio. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2011256766A Control device of internal combustion engine 审中-公开
标题翻译：内燃机控制装置
公开(公告)号：JP2011256766A
公开(公告)日：2011-12-22
申请号：JP2010131155
申请日：2010-06-08
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： CHIBA FUMITO , YOSHIOKA MAMORU , TSUKAKOSHI TAKAHIRO
IPC分类号： F02D45/00 , F01P3/20 , F02D19/08 , F02N19/10
摘要： PROBLEM TO BE SOLVED: To provide a control device of an internal combustion engine, which uses a mixed fuel of gasoline and alcohol and improves starting performance at a low temperature.SOLUTION: The control device of the internal combustion engine includes: a heat storage tank 32 for storing warm cooling water (hot water) in a condition of keeping warm while the internal combustion engine 10 is sufficiently warmed up; a water pump for heat storage 30 for supplying the hot water stored in the heat storage tank 32 into a refrigerant passage formed in the internal combustion engine 10; a fuel property sensor 44 for obtaining the alcohol concentration of the mixed fuel; and a controller for performing preheat treatment where the internal combustion engine 10 before starting is warmed up by driving the water pump for heat storage 30 when a request for cold start of the internal combustion engine 10 is issued. The controller is set so that a supply flow rate of the hot water becomes a large quantity as the alcohol concentration is higher. The supply flow rate of the hot water is set to be a large quantity during an initial period of the preheat treatment while the flow rate is set smaller than that in the initial period during the later period.
摘要翻译：解决的问题：提供一种使用汽油和酒精的混合燃料并提高低温起动性能的内燃机的控制装置。解决方案：内燃机的控制装置包括：蓄热箱32，用于在内燃机10充分加热的同时保温的状态下储存温暖的冷却水（热水）; 用于将存储在储热箱32中的热水供给到形成在内燃机10中的制冷剂通道的蓄热水30; 用于获得混合燃料的醇浓度的燃料特性传感器44; 以及用于执行预热处理的控制器，其中当内燃机10的冷起动请求被发出时，通过驱动用于储热的水泵30来启动启动之前的内燃机10。控制器被设定为随着酒精浓度较高，热水的供给流量变大。在预热处理的初始阶段，将热水的供给流量设定为大量，同时将流量设定为比后期的初始期间的流量小。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2010025080A Failure determination system of variable compression-ratio mechanism 有权
标题翻译：可变压缩比机制的故障确定系统
公开(公告)号：JP2010025080A
公开(公告)日：2010-02-04
申请号：JP2008190831
申请日：2008-07-24
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： CHIBA FUMITO , KIMURA KOICHI , KUROKI RENTARO
IPC分类号： F02D15/04 , F02B75/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a failure determination system of a variable compression ratio mechanism by which, at the determination of whether an operation failure occurs or not in the variable compression ratio mechanism, malfunctions such as deterioration in output performance, fuel economy, and the deterioration of exhaust emission are restrained. SOLUTION: During an idling operation of an internal combustion engine, compression ratio forced-variation control is executed by which a compression ratio ε is varied in accordance with the transition of a desired compression ratio εtf for failure determination set for the failure determination of the variable compression ratio mechanism to obtain a maximum value Pcumax and a minimum value Pcumin of a cylinder pressure Pcu at the end of compression (S103), whether the variation range of a calculated maximum cylinder pressure ΔPcuw is not higher than ΔBw or not is determined (S104, S105), and if the variation range of the maximum cylinder pressure ΔPcuw is not higher than ΔBw, it is determined that an operation failure occurs in the variable compression ratio mechanism 9 (S106). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种可变压缩比机构的故障判定系统，其中，在确定可变压缩比机构中是否发生操作故障时，输出性能的劣化，燃料经济，废气排放的恶化受到限制。解决方案：在内燃机的空转操作期间，执行压缩比强制变化控制，通过该压缩比强制变化控制压缩比ε根据用于故障确定设定的故障判定的期望压缩比εtf的变化而变化以获得压缩结束时的气缸压力Pcu的最大值Pcumax和最小值Pcumin（S103），计算出的最大气缸压力ΔPcuw的变化范围是否不高于ΔBw，确定（S104，S105），并且如果最大气缸压力ΔPcuw的变化范围不高于ΔBw，则确定在可变压缩比机构9中发生操作故障（S106）。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2009293496A Variable compression ratio internal combustion engine 审中-公开
标题翻译：可变压缩比内燃机
公开(公告)号：JP2009293496A
公开(公告)日：2009-12-17
申请号：JP2008147415
申请日：2008-06-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KUROKI RENTARO , KIMURA KOICHI , CHIBA FUMITO
IPC分类号： F02D15/04 , F02B75/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a technology for determining abnormality of a variable compression ratio mechanism more easily with more accuracy. SOLUTION: A change in the amount of so-called blow-by gas leaking out to the crankcase side from a combustion chamber of an internal combustion engine when a command for changing a compression ratio is output by a variable compression ratio mechanism (S105) is acquired (S103, S106). When the change in the amount of blow-by gas is too small or too large in relation to the change of the compression ratio, the variable compression mechanism is determined to be abnormal (S109). COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种更准确地更容易地确定可变压缩比机构的异常的技术。解决方案：当通过可变压缩比机构输出用于改变压缩比的命令时，从内燃机的燃烧室泄漏到曲轴箱侧的所谓的窜气的量的变化（ S105）（S103，S106）。当窜气量的变化相对于压缩比的变化而言太小或太大时，可变压缩机构被确定为异常（S109）。版权所有（C）2010，JPO＆INPIT

7. 发明专利

JP2009264151A Engine control device 审中-公开
标题翻译：发动机控制装置
公开(公告)号：JP2009264151A
公开(公告)日：2009-11-12
申请号：JP2008112091
申请日：2008-04-23
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KIMURA KOICHI , CHIBA FUMITO , NAKASAKA YUKIHIRO , KUROKI RENTARO
IPC分类号： F02D15/04 , F01N3/20 , F01N3/24 , F02B75/04 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To improve accuracy of catalyst deterioration diagnosis more than ever. SOLUTION: An engine control device (3) controls operation of an engine (1) constructed in such a manner that its compression ratio is changed, and includes a gas sensor (318b), a compression ratio control part and a catalyst diagnosis part (300). The gas sensor is installed in an exhaust gas passage (202) at an exhaust gas flow direction downstream side of a catalyst (205) for purifying exhaust gas discharged from the engine, and generates output corresponding to concentration of specific component in exhaust gas passing through the catalyst. A compression ratio control part (300) controls compression ratio of the engine according to operation conditions. A catalyst diagnosis part (300) diagnoses degree of deterioration of the catalyst based on the output of the gas sensor. The compression ratio control part prohibits change of compression ratio during diagnosis of the degree of deterioration of the catalyst by the catalyst diagnosis part. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提高催化剂劣化诊断的准确性。发动机控制装置（3）控制以压缩比改变的方式构造的发动机（1）的操作，并且包括气体传感器（318b），压缩比控制部和催化剂诊断部分（300）。气体传感器安装在用于净化从发动机排出的废气的催化剂（205）的排气流动方向下游侧的废气通道（202）中，并产生与通过的排气中的特定成分浓度相对应的输出催化剂。压缩比控制部（300）根据运转条件控制发动机的压缩比。催化剂诊断部（300）基于气体传感器的输出来诊断催化剂的劣化程度。压缩比控制部在由催化剂诊断部诊断催化剂劣化程度时，抑制压缩比的变化。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JP2005282466A Control device for premixed compression self ignition internal combustion engine 审中-公开
标题翻译：用于预先压缩自控点火内燃机的控制装置
公开(公告)号：JP2005282466A
公开(公告)日：2005-10-13
申请号：JP2004097919
申请日：2004-03-30
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KOBAYASHI TATSUO , CHIBA FUMITO , AIKAWA TSUGUFUMI
IPC分类号： F02D13/02 , F02D41/02 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To provide a control device for a two cycle premixed compression self ignition internal combustion engine capable of suppressing fluctuation of combustion conditions between cycles due to combustion conditions of previous cycle.
SOLUTION: This control device sends out drive signal to a drive circuit 38 to make an air supply valve 32 open by an air supply valve drive mechanism 32a when cylinder pressure detected by a cylinder pressure sensor 63 provided in a combustion chamber 25 becomes reference cylinder pressure predetermined according to operation conditions of an internal combustion engine 10 or less. Consequently, fluctuation of combustion gas quantity remaining in the combustion chamber 25 and air quantity introduced in the combustion chamber 25 between cycles can be made small and fluctuation of combustion conditions between cycles can be suppressed.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够抑制由于前一循环的燃烧条件引起的循环之间的燃烧条件的波动的两循环预混压缩自点火内燃机的控制装置。解决方案：当由设置在燃烧室25中的气缸压力传感器63检测到的气缸压力变为变量时，该控制装置向驱动电路38发送驱动信号，使供气阀32由供气阀驱动机构32a打开根据内燃机10的运转条件预定的基准气缸压力。因此，可以使在燃烧室25中残留的燃烧气体量的波动和在循环之间引入到燃烧室25中的空气量变小，并且可以抑制循环之间的燃烧条件的波动。版权所有（C）2006，JPO＆NCIPI

9. 发明专利

JP2010116805A Control device for engine 审中-公开
标题翻译：发动机控制装置
公开(公告)号：JP2010116805A
公开(公告)日：2010-05-27
申请号：JP2008289278
申请日：2008-11-11
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TSUKAKOSHI TAKAHIRO , CHIBA FUMITO , YOSHIOKA MAMORU
IPC分类号： F02D19/08 , F02D13/02 , F02D41/06 , F02D45/00
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To suppress self-ignition of fuel, in an engine using alcohol-mixed fuel.
SOLUTION: A control device 2 for an engine 1 includes an injector 4 for supplying mixed fuel with ethanol and gasoline into an engine cylinder 3, a variable fuel pressure system 5 for making the fuel pressure of fuel to be supplied to the injector 4 to be variable, a fuel property sensor 13 for detecting the ethanol concentration of fuel, a variable valve lift mechanism 8 for making a lift amount of an air inlet valve 6 to be variable, and an ECU 9. The ECU 9, when deciding that ethanol concentration of fuel, which the fuel property sensor 13 detects, is higher than C1, makes small an operating angle of the air inlet valve 6 by the variable valve lift mechanism 8 before engine shut-off. Moreover, the ECU 9, when the engine 1 is re-started after making small the operating angle of the air inlet valve 6 and the engine shut-off, and when cooling water temperature of the engine 1 is higher than W1, reduces the fuel pressure of the fuel to be supplied from the injector 4 into the cylinder 3 by the variable fuel pressure system 5.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在使用醇混合燃料的发动机中抑制燃料的自燃。解决方案：用于发动机1的控制装置2包括用于将混合燃料与乙醇和汽油供应到发动机气缸3中的喷射器4，用于使燃料的燃料压力提供给喷射器的可变燃料压力系统5 4是可变的，用于检测燃料的乙醇浓度的燃料特性传感器13，用于使进气阀6的升程量变化的可变气门升程机构8和ECU9。ECU9在决定燃料特性传感器13检测到的燃料的乙醇浓度高于C1，在发动机关闭之前通过可变气门升程机构8使进气阀6的操作角小。此外，ECU9在使进气阀6的动作角小且发动机关闭后再次起动时，发动机1的冷却水温度高于W1时，能够减少燃料通过可变燃料压力系统5从喷射器4供给到气缸3中的燃料的压力。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2010065604A Control device of multi-cylinder engine 审中-公开
标题翻译：多缸发动机控制装置
公开(公告)号：JP2010065604A
公开(公告)日：2010-03-25
申请号：JP2008232621
申请日：2008-09-10
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： TSUKAKOSHI TAKAHIRO , CHIBA FUMITO , YOSHIOKA MAMORU , NAKAGAWA NORIHISA
IPC分类号： F02D41/04 , F02D19/08 , F02D41/02
摘要： PROBLEM TO BE SOLVED: To provide a control device of a multi-cylinder engine improving startability in the engine under a very low temperature condition, in the multi-cylinder engine using alcohol-mixed fuel.
SOLUTION: An ECU 1A is equipped with an ignition timing advance control means for advancing the fuel injection timing of a first cylinder, when a fuel injection indicating signal to the first cylinder in the first combustion cycle after generating an initial explosion, overlaps with a fuel injection indicating signal to a second cylinder different from the first cylinder under the very low temperature condition, on an engine 50 using ethanol-mixed fuel being the alcohol-mixed fuel. The ignition timing advance control means is constituted so as to advance the fuel injection timing when the ethanol concentration of the ethanol-mixed fuel is actually higher than a predetermined value A. The ignition timing advance control means is also constituted so as to advance the fuel injection timing in a larger degree as the ethanol concentration actually becomes high in response to the ethanol concentration of the ethanol-mixed fuel.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在使用醇混合燃料的多缸发动机中，提供一种多缸发动机的控制装置，其在非常低的温度条件下提高发动机的起动性。解决方案：ECU 1A配备有点火正时提前控制装置，用于在产生初始爆炸之后的第一燃烧循环中的燃料喷射指示信号到第一气缸时，使第一气缸的燃料喷射正时提前重叠在使用乙醇混合燃料作为醇混合燃料的发动机50上，向与第一气缸不同的第二气缸的燃料喷射指示信号施加在非常低的温度条件下。点火正时提前控制装置构成为当乙醇混合燃料的乙醇浓度实际上高于预定值A时推进燃料喷射正时。点火正时提前控制装置也构成为使燃料随着乙醇浓度实际上响应于乙醇混合燃料的乙醇浓度而变高，喷射正时更大。版权所有（C）2010，JPO＆INPIT

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