公开(公告)号：US20130340423A1

公开(公告)日：2013-12-26

申请号：US13635279

申请日：2011-03-16

Applicant: Takashi Tsunooka

Inventor： Takashi Tsunooka

IPC: F02B37/00

CPC classification number: F02B37/00 ,  F01N3/02 ,  F01N3/10 ,  F02B37/18 ,  F02B37/183 ,  F02D41/0007 ,  F02D41/008 ,  F02D41/14 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D41/2454 ,  F02D41/30 ,  F02D2041/1415 ,  F02D2041/1431 ,  Y02T10/144 ,  Y02T10/40 ,  Y02T10/44

Abstract: An object of this invention is to accurately control an exhaust air-fuel ratio, even when a WGV (waste gate valve) is operating. An ECU 60 is equipped with a turbine passing path constant At that corresponds to a time required for exhaust gas to flow to an air-fuel ratio sensor 56 via a turbine 36a of a turbosupercharger 36, and a bypass path constant Ab that corresponds to a time required for exhaust gas to flow to the air-fuel ratio sensor 56 via a bypass passage 38. The ECU 60 calculates first and second fuel injection correction amounts Δt and Δb in which the path constants At and Ab are reflected, respectively. When executing air-fuel ratio feedback control, the ECU 60 selects one of the fuel injection correction amounts Δt and Δb based on at least an open or closed state of the WGV 40, and corrects a fuel injection amount using the selected fuel injection correction amount. It is thus possible to appropriately compensate for differences in exhaust path lengths and air-fuel ratio fluctuations that arise due to opening or closing of the WGV 40.

Abstract translation: 本发明的目的是即使在WGV（废气闸阀）工作时也能够精确地控制排气空燃比。 ECU60配备有涡轮通过路径常数，其对应于排气通过涡轮增压器36的涡轮36a流向空燃比传感器56所需的时间，以及对应于涡轮增压器36的旁路路径常数Ab 废气通过旁路通路38流向空燃比传感器56所需的时间.ECC 60计算分别反映路径常数ΔA和Ab的第一和第二燃料喷射校正量Deltat和Deltab。 在执行空燃比反馈控制时，ECU60至少基于WGV40的打开或关闭状态选择燃料喷射修正量Deltat和Deltab中的一个，并且使用所选择的燃料喷射校正量来校正燃料喷射量 。 因此，可以适当地补偿由于WGV 40的打开或关闭而引起的排气路径长度和空燃比波动的差异。

公开(公告)号：US08393313B2

公开(公告)日：2013-03-12

申请号：US13162221

申请日：2011-06-16

Applicant: Akira Sato ,  Yasuyuki Irisawa ,  Shinichi Mitani ,  Takashi Tsunooka ,  Shigeyuki Urano ,  Satoshi Yoshizaki

Inventor： Akira Sato ,  Yasuyuki Irisawa ,  Shinichi Mitani ,  Takashi Tsunooka ,  Shigeyuki Urano ,  Satoshi Yoshizaki

IPC: F02G5/00 ,  F02G5/02

CPC classification number: F02M31/18 ,  F02D19/0605 ,  F02D19/0628 ,  F02D19/0655 ,  F02D19/0665 ,  F02D19/081 ,  F02D19/084 ,  Y02T10/126 ,  Y02T10/36

Abstract: A control apparatus and control method is provided for an internal combustion engine that includes a vaporized fuel tank in which vaporized fuel is stored, and a normally-closed vaporized fuel supply valve that opens and closes a connecting portion between the vaporized fuel tank and a surge tank. This apparatus and method produce vaporized fuel by injecting fuel into the tank while the vaporized fuel supply valve is closed while the engine is operating, then open the vaporized fuel supply valve at engine startup and supply the vaporized fuel stored in the tank to the surge tank. If there is no vaporized fuel remaining in the vaporized fuel tank when the engine stops, vacuum is generated in the vaporized fuel tank by temporarily opening the vaporized fuel supply valve before the engine stops. Vaporized fuel is then produced by injecting fuel into the vaporized fuel tank in this vacuum state.

Abstract translation: 提供一种用于内燃机的控制装置和控制方法，所述内燃机包括蒸发燃料的汽化燃料箱，其中储存蒸发燃料;以及常闭汽化燃料供给阀，其将所述汽化燃料箱与喘振之间的连接部分打开和关闭 坦克。 该装置和方法通过在发动机运转时关闭燃料燃料供给阀的同时将燃料喷射到罐中而产生汽化燃料，然后在发动机起动时打开汽化燃料供给阀并将储存在罐中的蒸发燃料供应到缓冲罐 。 如果在发动机停止时在蒸发的燃料箱中没有蒸发的燃料残留，则在发动机停止之前暂时打开蒸发的燃料供给阀，在蒸发的燃料箱中产生真空。 然后通过在该真空状态下将燃料喷射到蒸发的燃料箱中来产生汽化燃料。

公开(公告)号：US08113186B2

公开(公告)日：2012-02-14

申请号：US12527650

申请日：2008-02-04

Applicant: Takashi Tsunooka ,  Takashi Watanabe ,  Yohei Hosokawa

Inventor： Takashi Tsunooka ,  Takashi Watanabe ,  Yohei Hosokawa

IPC: F02D41/14 ,  F02M33/02 ,  F02M7/00 ,  G06F19/00

CPC classification number: F02D41/0032 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/047 ,  F02D2200/023 ,  F02D2250/11 ,  F02M25/06 ,  F02M25/089 ,  Y02T10/36

Abstract: A multifuel internal combustion engine in which single low boiling point component fuel and at least one kind of fuel having properties different from those of the single low boiling point component fuel are introduced into a combustion chamber CC separately or together thereby operating the multifuel internal combustion engine, includes lubricant-oil temperature detecting unit means (temperature sensor 91) that detects a temperature of lubricant oil, or lubricant-oil temperature estimating unit means that estimates the temperature, and purge control unit means (electronic control unit 1) that prohibits purge control by an evaporation gas purge apparatus (evaporation gas passage 42, check valve 43, canister 44, on-off valve 45) or reduces a purge flow rate of evaporation gas in the purge control, when the detected or estimated temperature of the lubricant oil is near a boiling point temperature of the single low boiling point component fuel at which it is necessary to reduce a fuel injection amount from a fuel injection valve to a predetermined amount or less to adjust an air/fuel ratio of the combustion chamber to a target air/fuel ratio.

Abstract translation: 一种多燃料内燃机，其中单个低沸点组分燃料和至少一种具有与单一低沸点组分燃料不同的性质的燃料分别或一起引入燃烧室CC中，从而操作多元燃料内燃机 包括检测润滑油的温度的润滑油温度检测单元装置（温度传感器91）或估计温度的润滑油温度估计单元装置，以及禁止清洗控制的清洗控制单元装置（电子控制单元1） 通过蒸发气体吹扫装置（蒸发气体通路42，止回阀43，罐44，开关阀45），或者当润滑油的检测或估计的温度为 接近需要减少燃料喷射的单一低沸点组分燃料的沸点温度 从燃料喷射阀到预定量以下的排出量，以将燃烧室的空气/燃料比调节到目标空气/燃料比。

公开(公告)号：US07983831B2

公开(公告)日：2011-07-19

申请号：US12227430

申请日：2007-05-22

Applicant: Takashi Tsunooka

Inventor： Takashi Tsunooka

IPC: F02B47/00 ,  F02M25/14

CPC classification number: F02D41/0025 ,  F02B2075/125 ,  F02B2275/16 ,  F02D19/061 ,  F02D19/0665 ,  F02D19/0684 ,  F02D19/0689 ,  F02D19/0692 ,  F02D19/0694 ,  F02D19/084 ,  F02D19/088 ,  F02D33/006 ,  F02D41/062 ,  F02D41/2454 ,  F02D2200/0612 ,  F02M37/0064 ,  F02M37/0094 ,  F02M37/18 ,  Y02T10/123 ,  Y02T10/36

Abstract: A fuel feed chamber and a residual fuel chamber that are connectable to each other via a shutoff valve are provided in a fuel tank. When the fuel tank is refueled, the fuel feed chamber and the residual fuel chamber, which have been connected to each other so far, are disconnected and then fuel is fed only into the fuel feed chamber to refuel the fuel tank. When the engine is restarted after the refueling, only the fuel in the residual fuel chamber is supplied to the engine while the fuel feed chamber and the residual fuel chamber remain disconnected from each other, and the engine is controlled in accordance with the property of the fuel in the residual fuel chamber, which has been determined in advance.

Abstract translation: 在燃料箱中设置有能够通过截止阀彼此连接的燃料供给室和剩余燃料室。 当燃料箱加油时，到目前为止已经连接的燃料供给室和剩余燃料室被断开，然后将燃料仅供给到燃料供给室以加油燃料箱。 当发动机在加油后再起动时，只有在燃料供给室和残余燃料室彼此断开的同时，将剩余燃料室中的燃料供给到发动机，并且根据发动机的特性来控制发动机 剩余燃料室中的燃料，其已被预先确定。

公开(公告)号：US20100083937A1

公开(公告)日：2010-04-08

申请号：US12527650

申请日：2008-02-04

Applicant: Takashi Tsunooka ,  Takashi Watanabe ,  Yohei Hosokawa

Inventor： Takashi Tsunooka ,  Takashi Watanabe ,  Yohei Hosokawa

IPC: F02M7/00 ,  F02M33/02

CPC classification number: F02D41/0032 ,  F02D19/084 ,  F02D41/0025 ,  F02D41/047 ,  F02D2200/023 ,  F02D2250/11 ,  F02M25/06 ,  F02M25/089 ,  Y02T10/36

Abstract: A multifuel internal combustion engine in which single low boiling point component fuel and at least one kind of fuel having properties different from those of the single low boiling point component fuel are introduced into a combustion chamber CC separately or together thereby operating the multifuel internal combustion engine, includes lubricant-oil temperature detecting unit means (temperature sensor 91) that detects a temperature of lubricant oil, or lubricant-oil temperature estimating unit means that estimates the temperature, and purge control unit means (electronic control unit 1) that prohibits purge control by an evaporation gas purge apparatus (evaporation gas passage 42, check valve 43, canister 44, on-off valve 45) or reduces a purge flow rate of evaporation gas in the purge control, when the detected or estimated temperature of the lubricant oil is near a boiling point temperature of the single low boiling point component fuel at which it is necessary to reduce a fuel injection amount from a fuel injection valve to a predetermined amount or less to adjust an air/fuel ratio of the combustion chamber to a target air/fuel ratio.

Abstract translation: 一种多燃料内燃机，其中单个低沸点组分燃料和至少一种具有不同于单一低沸点组分燃料的燃料的燃料分别或一起引入燃烧室CC中，从而操作多元燃料内燃机 包括检测润滑油的温度的润滑油温度检测单元装置（温度传感器91）或估计温度的润滑油温度估计单元装置，以及禁止清洗控制的清洗控制单元装置（电子控制单元1） 通过蒸发气体吹扫装置（蒸发气体通路42，止回阀43，罐44，开关阀45），或者当润滑油的检测或估计的温度为 接近需要减少燃料喷射的单一低沸点组分燃料的沸点温度 从燃料喷射阀到预定量以下的排出量，以将燃烧室的空气/燃料比调节到目标空气/燃料比。

公开(公告)号：US07464693B2

公开(公告)日：2008-12-16

申请号：US10867685

申请日：2004-06-16

Applicant: Keizo Hiraku ,  Akira Hashizume ,  Takashi Tsunooka ,  Hirohiko Yamada ,  Masakazu Yamada

Inventor： Keizo Hiraku ,  Akira Hashizume ,  Takashi Tsunooka ,  Hirohiko Yamada ,  Masakazu Yamada

IPC: F02D31/00 ,  F02M7/00

CPC classification number: F02D41/008 ,  F02B31/04 ,  F02B2031/006 ,  F02D13/02 ,  F02D15/04 ,  F02D37/02 ,  F02D41/0002 ,  F02D41/1497 ,  F02D41/187 ,  F02D2041/001 ,  F02D2250/18 ,  Y02T10/146 ,  Y02T10/18 ,  Y02T10/42

Abstract: A combustion condition for each of plural cylinders included in an internal combustion engine is set by the following control that is performed according to an intake air amount in each of the plural cylinders. A reference cylinder is set to a cylinder in which the intake air amount is smallest, and a fuel injection amount for the reference cylinder is set to a fuel injection amount for realizing a stoichiometric air-fuel ratio. The air-fuel ratio in each of the cylinders other than the reference cylinder is set according to the intake air amount in each of the cylinders such that the torque equal to reference torque generated in the reference cylinder is generated. When this setting is performed, air-fuel ratios that are out of a predetermined region in the vicinity of the stoichiometric air-fuel ratio (i.e., air-fuel ratios that are in an avoidance region) are excluded. With respect to a cylinder in which the torque equal to the reference torque cannot be generated only by setting the air-fuel ratio, correction of the ignition timing is further performed so as to suppress a difference between the torque generated in the cylinder and the reference torque.

Abstract translation: 包括在内燃机中的多个气缸中的每一个的燃烧条件通过根据多个气缸中的每个气缸中的进气量执行的以下控制来设定。 将基准气缸设定为吸气量最小的气缸，将基准气缸的燃料喷射量设定为实现理论空燃比的燃料喷射量。 根据每个气缸中的进气量设定与基准气缸以外的各个气缸的空燃比，使得产生与参考气缸中产生的基准转矩相等的转矩。 当执行该设定时，排除在理论空燃比附近（即，避开区域的空燃比）之外的预定区域之外的空燃比。 对于仅通过设定空燃比而不能产生与基准转矩相等的转矩的气缸，进一步进行点火正时的校正，以抑制气缸中产生的转矩和参考点之间的差 扭矩。

公开(公告)号：US10006382B2

公开(公告)日：2018-06-26

申请号：US14441555

申请日：2013-12-09

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  Takashi Tsunooka ,  Wataru Fukui

Inventor： Takashi Tsunooka ,  Wataru Fukui

IPC: F02B37/18 ,  F02D41/00 ,  F02D41/14 ,  F02B37/22

CPC classification number: F02D41/0007 ,  F02B37/18 ,  F02B37/183 ,  F02D41/0085 ,  F02D41/1456 ,  Y02T10/144

Abstract: An apparatus for detecting inter-cylinder air-fuel ratio imbalance in an engine is provided. The apparatus includes a turbocharger, a bypass passage configured to bypass a turbine of the turbocharger, a waste gate valve configured to selectively close the bypass passage, an air-fuel ratio sensor installed in a portion of an exhaust passage which portion is located on a downstream side of a junction between a downstream side of the turbine and a downstream side of the bypass passage, and a determination unit programmed to compare a value of a degree of fluctuation in an output from the air-fuel ratio sensor or a parameter correlated therewith with a predetermined threshold to perform inter-cylinder air-fuel ratio imbalance determination. The determination unit is programmed not to perform the imbalance determination when an opening degree of the waste gate valve is equal to or higher than a predetermined reference value.

公开(公告)号：US09103270B2

公开(公告)日：2015-08-11

申请号：US13635279

申请日：2011-03-16

Applicant: Takashi Tsunooka

Inventor： Takashi Tsunooka

IPC: F02D23/00 ,  F01N5/04 ,  G06F19/00 ,  F02B37/00 ,  F02B37/18 ,  F02D41/24 ,  F02D41/14 ,  F02D41/30 ,  F01N3/02 ,  F02D41/00

CPC classification number: F02B37/00 ,  F01N3/02 ,  F01N3/10 ,  F02B37/18 ,  F02B37/183 ,  F02D41/0007 ,  F02D41/008 ,  F02D41/14 ,  F02D41/1441 ,  F02D41/1454 ,  F02D41/1456 ,  F02D41/2454 ,  F02D41/30 ,  F02D2041/1415 ,  F02D2041/1431 ,  Y02T10/144 ,  Y02T10/40 ,  Y02T10/44

Abstract: An electronic control unit (ECU) is equipped with a turbine passing path constant that corresponds to a time required for exhaust gas to flow to an air-fuel ratio sensor via a turbine of a turbosupercharger, and a bypass path constant that corresponds to a time required for exhaust gas to flow to the air-fuel ratio sensor via a bypass passage. The ECU calculates first and second fuel injection correction amounts and in which the path constants and are reflected, respectively. The ECU selects one of the fuel injection correction amounts and based on at least an open or closed state of the waste gate valve (WGV), corrects a fuel injection amount using the selected fuel injection correction amount. It is thus possible to appropriately compensate for differences in exhaust path lengths and air-fuel ratio fluctuations that arise due to opening or closing of the WGV.

Abstract translation: 电子控制单元（ECU）配备有涡轮通过路径常数，其对应于废气通过涡轮增压器的涡轮流向空燃比传感器所需的时间，以及对应于时间的旁路路径常数 废气通过旁通通道流到空燃比传感器所需的。 ECU计算第一和第二燃料喷射校正量，并分别反映路径常数。 ECU根据废气门阀（WGV）的至少打开或关闭状态选择燃料喷射校正量中的一个，并使用所选择的燃料喷射校正量来校正燃料喷射量。 因此，可以适当地补偿由于WGV的打开或关闭而引起的排气路径长度和空燃比波动的差异。

公开(公告)号：US20120035829A1

公开(公告)日：2012-02-09

申请号：US13264087

申请日：2009-04-16

Applicant: Shinichi Mitani ,  Shigemasa Hirooka ,  Takashi Tsunooka ,  Akira Satou ,  Shigeyuki Urano

Inventor： Shinichi Mitani ,  Shigemasa Hirooka ,  Takashi Tsunooka ,  Akira Satou ,  Shigeyuki Urano

IPC: F01N3/02

CPC classification number: F01P3/20 ,  F01N3/043 ,  F01N3/046 ,  F01P2060/16 ,  Y02T10/20

Abstract: A control device for an internal combustion engine according to an embodiment includes: cooling units arranged on a path where a coolant is circulated, and cooling an exhaust gas of the internal combustion engine with the coolant flowing through the cooling units; a pump circulating the coolant; and ECUs estimating a heat quantity of the exhaust gas and deciding whether or not to operate the pump after an ignition switch is detected to be OFF in response to the estimated heat quantity of the exhaust gas.

Abstract translation: 根据一个实施例的用于内燃机的控制装置包括：布置在冷却剂循环的路径上的冷却单元，以及冷却剂流过冷却单元的内燃机的排气; 泵冷却液循环; 以及ECU，其估计排气的热量，并且响应于所估计的废气热量，判定在点火开关被检测为OFF之后是否操作所述泵。

公开(公告)号：US20110308501A1

公开(公告)日：2011-12-22

申请号：US13160178

申请日：2011-06-14

Applicant: Akira Sato ,  Yasuyuki Irisawa ,  Sinichi Mitani ,  Takashi Tsunooka ,  Shigeyuki Urano ,  Satoshi Yoshizaki

Inventor： Akira Sato ,  Yasuyuki Irisawa ,  Sinichi Mitani ,  Takashi Tsunooka ,  Shigeyuki Urano ,  Satoshi Yoshizaki

IPC: F02M33/04

CPC classification number: F02D19/0665 ,  F02D19/0605 ,  F02D19/0628 ,  F02D19/0636 ,  F02D19/0655 ,  F02D41/003 ,  F02M31/186 ,  Y02T10/126 ,  Y02T10/36

Abstract: In a control of an internal combustion engine control apparatus, the control apparatus includes: a fuel tank that stores a fuel; a vaporized fuel tank that is connected to an intermediate portion of an intake passageway of an internal combustion engine and that stores a vaporized fuel that is formed by vaporization of the fuel; an in-tank fuel supply device that supplies the fuel from the fuel tank into the vaporized fuel tank; and a normally-closed vaporized fuel supply valve that opens and closes a connecting portion between the vaporized fuel tank and the intake passageway. The control apparatus estimates air/fuel ratio in the vaporized fuel tank, and produces the vaporized fuel in the vaporized fuel tank by driving the in-tank fuel supply device, with the vaporized fuel supply valve closed, until the estimated air/fuel ratio becomes substantially zero, during operation of the engine. At the time of starting the engine, the control apparatus supplies the vaporized fuel stored in the vaporized fuel tank into the intake passageway by opening the vaporized fuel supply valve.

Abstract translation: 在控制内燃机控制装置中，控制装置包括：储存燃料的燃料箱; 蒸发燃料箱，其连接到内燃机的进气通道的中间部分，并存储通过燃料蒸发而形成的汽化燃料; 将来自燃料箱的燃料供给到蒸发的燃料箱中的燃料箱内燃料供给装置; 以及常闭气化燃料供给阀，其打开和关闭蒸发的燃料箱与进气通道之间的连接部分。 控制装置估计蒸发的燃料箱中的空燃比，并且通过驱动箱内燃料供应装置，在蒸发的燃料供给阀关闭的状态下，在蒸发的燃料箱中产生蒸发的燃料，直到估计的空气/燃料比变为 在发动机的运行期间基本为零。 在起动发动机时，控制装置通过打开蒸发的燃料供给阀将存储在蒸发的燃料箱中的蒸发燃料提供到进气通道中。