Patents by Inventor Takuji Matsubara
Takuji Matsubara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240097441Abstract: A management system includes a plurality of resources configured to be electrically connected to an external power supply, and a management device configured to manage the resources. The management device includes a planning unit and a management unit. The planning unit is configured to determine a power balancing plan of each of the resources by using first information on a use schedule of each of the resources and second information indicating a magnitude of an environmental load in a process of generating electric power to be supplied by the external power supply. The management unit is configured to manage the resources to cause each of the resources to operate according to the power balancing plan or a modified power balancing plan in power balancing of the external power supply.Type: ApplicationFiled: August 3, 2023Publication date: March 21, 2024Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, CHUBU ELECTRIC POWER MIRAIZ CO., INC., CHUBU ELECTRIC POWER CO., INC.Inventors: Yusuke HORII, Eiko Megan UCHIDA, Masashi TANAKA, Masato EHARA, Sachio TOYORA, Tomoya TAKAHASHI, Akinori MORISHIMA, Takuji MATSUBARA, Tohru NAKAMURA, Ryou TAKAHASHI, Kenta ITO, Toshiki SUZUKI, Atsushi MIYASHITA, Takashi OCHIAI
-
Patent number: 9062620Abstract: A vehicle includes an engine, a first MG (motor generator), a second MG, a motive power split device, and an ECU. ECU temporarily determines whether or not an imbalance abnormality has occurred based on an air-fuel ratio, and when it is temporarily determined that the imbalance abnormality is present, controls the engine such that the engine is in an idle state and formally determines whether or not the imbalance abnormality has occurred based on fluctuations in engine rotation speed. During a stop at idle, ECU determines whether or not the formal determination process of the imbalance determination is ongoing and carries out pressing control to cause the first MG to generate pressing torque Tp when the formal determination process is not ongoing and does not carry out the pressing control so as not to cause the first MG to generate pressing torque Tp when the formal determination process is ongoing.Type: GrantFiled: January 12, 2011Date of Patent: June 23, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daigo Ando, Takuji Matsubara, Takahiro Nishigaki
-
Patent number: 8989938Abstract: Provided is a vehicle including an engine, a first MG (motor generator), a second MG, a power split device that couples them, and an ECU. ECU determines whether or not to permit execution of pressing control for suppressing idling vibrations produced by the power split device in an idling state of the engine depending on whether or not the combustion state of the engine is good, and sets a permission flag in accordance with a determination result. ECU determines whether or not the vehicle is stopping and is in the idling state. While the vehicle is stopping and is in the idling state and if the permission flag F is “ON”, ECU executes pressing control to cause the first MG to produce pressing torque Tp. If the permission flag F is “OFF”, ECU does not execute pressing control so that the first MG does not produce pressing torque Tp.Type: GrantFiled: December 22, 2010Date of Patent: March 24, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Daigo Ando, Takuji Matsubara
-
Publication number: 20130297180Abstract: A vehicle includes an engine, a first MG (motor generator), a second MG, a motive power split device, and an ECU. ECU temporarily determines whether or not an imbalance abnormality has occurred based on an air-fuel ratio, and when it is temporarily determined that the imbalance abnormality is present, controls the engine such that the engine is in an idle state and formally determines whether or not the imbalance abnormality has occurred based on fluctuations in engine rotation speed. During a stop at idle, ECU determines whether or not the formal determination process of the imbalance determination is ongoing and carries out pressing control to cause the first MG to generate pressing torque Tp when the formal determination process is not ongoing and does not carry out the pressing control so as not to cause the first MG to generate pressing torque Tp when the formal determination process is ongoing.Type: ApplicationFiled: January 12, 2011Publication date: November 7, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daigo Ando, Takuji Matsubara, Takahiro Nishigaki
-
Publication number: 20130268153Abstract: Provided is a vehicle including an engine, a first MG (motor generator), a second MG, a power split device that couples them, and an ECU. ECU determines whether or not to permit execution of pressing control for suppressing idling vibrations produced by the power split device in an idling state of the engine depending on whether or not the combustion state of the engine is good, and sets a permission flag in accordance with a determination result. ECU determines whether or not the vehicle is stopping and is in the idling state. While the vehicle is stopping and is in the idling state and if the permission flag F is “ON”, ECU executes pressing control to cause the first MG to produce pressing torque Tp. If the permission flag F is “OFF”, ECU does not execute pressing control so that the first MG does not produce pressing torque Tp.Type: ApplicationFiled: December 22, 2010Publication date: October 10, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Daigo Ando, Takuji Matsubara
-
Patent number: 7827784Abstract: An exhaust gas control apparatus for an internal combustion engine includes an exhaust gas purification catalyst device provided in an exhaust passage for the engine; an HC adsorption portion, provided in the exhaust passage, which adsorbs hydrocarbon in exhaust gas; a passage switching portion that selectively closes/opens a second passage bypassing the HC adsorption portion using an intake pipe negative pressure in the engine so that the exhaust gas flows in a first passage provided with the HC adsorption portion, or in the first passage and the second passage; and a control portion that controls the negative pressure so that the second passage is closed, when a predetermined condition is satisfied at the time of start of the engine. The control portion executes at least one of a control that advances the valve timing of an intake valve, and a control that reduces the opening amount of a throttle valve.Type: GrantFiled: August 2, 2007Date of Patent: November 9, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takuji Matsubara, Satoshi Yoshizaki
-
Patent number: 7822534Abstract: A fuel supply device (30) for an engine (1) pressurizes the fuel drawn up from a fuel tank (31) by the low-pressure fuel pump (32) and stores it in a delivery pipe (34), and injects the fuel stored in the delivery pipe (34) from an injector (35). The fuel supply device (30) includes a return passageway (50) connecting the delivery pipe (34) and the fuel tank (31), and a relief valve (51) that is provided on the return passageway (50) and that is capable of being switched between an open state for connecting the delivery pipe (34) and the fuel tank (31) in communication and a closed state for shutting off the delivery pipe (34) and the fuel tank (31) from each other in communication. An ECU (60) switches the relief valve (51) to the open state and operates the low-pressure fuel pump (32), if a predetermined stop condition for stopping the engine (1) is satisfied.Type: GrantFiled: February 26, 2007Date of Patent: October 26, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Takuji Matsubara
-
Patent number: 7814743Abstract: In an engine 5 including an in-cylinder injector, the valve timing of an intake valve is retarded by VVT (Variable Valve Timing) controlled by an engine ECU to decompress in a combustion chamber at engine startup. In accordance with a configuration in which the valve timing of intake valve is advanced in a stepped manner from an initial set value, fuel injection from in-cylinder injector is inhibited during the time when the advance is equal to or below a predetermined standard value, and fuel injection from in-cylinder injector is allowed when exceeding the predetermined standard value, whereby degradation in the exhaust emission level in accordance with start time decompression control can be suppressed.Type: GrantFiled: January 25, 2006Date of Patent: October 19, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Inoue, Tsukasa Abe, Shunsuke Fushiki, Mamoru Tomatsuri, Daigo Ando, Keiko Hasegawa, Osamu Harada, Katsuhiko Yamaguchi, Keita Fukui, Yukihiro Sonoda, Koji Morita, Takuji Matsubara, Yusuke Nakayama
-
Publication number: 20090271096Abstract: A fuel supply device (30) for an engine (1) pressurizes the fuel drawn up from a fuel tank (31) by the low-pressure fuel pump (32) and stores it in a delivery pipe (34), and injects the fuel stored in the delivery pipe (34) from an injector (35). The fuel supply device (30) includes a return passageway (50) connecting the delivery pipe (34) and the fuel tank (31), and a relief valve (51) that is provided on the return passageway (50) and that is capable of being switched between an open state for connecting the delivery pipe (34) and the fuel tank (31) in communication and a closed state for shutting off the delivery pipe (34) and the fuel tank (31) from each other in communication. An ECU (60) switches the relief valve (51) to the open state and operates the low-pressure fuel pump (32), if a predetermined stop condition for stopping the engine (1) is satisfied.Type: ApplicationFiled: February 26, 2007Publication date: October 29, 2009Inventor: Takuji Matsubara
-
Patent number: 7481101Abstract: A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.Type: GrantFiled: November 15, 2005Date of Patent: January 27, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takuji Matsubara, Toru Kidokoro, Yoshihiko Hyodo
-
Publication number: 20080028746Abstract: An exhaust gas control apparatus for an internal combustion engine includes an exhaust gas purification catalyst device provided in an exhaust passage for the engine; an HC adsorption portion, provided in the exhaust passage, which adsorbs hydrocarbon in exhaust gas; a passage switching portion that selectively closes/opens a second passage bypassing the HC adsorption portion using an intake pipe negative pressure in the engine so that the exhaust gas flows in a first passage provided with the HC adsorption portion, or in the first passage and the second passage; and a control portion that controls the negative pressure so that the second passage is closed, when a predetermined condition is satisfied at the time of start of the engine. The control portion executes at least one of a control that advances the valve timing of an intake valve, and a control that reduces the opening amount of a throttle valve.Type: ApplicationFiled: August 2, 2007Publication date: February 7, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuji Matsubara, Satoshi Yoshizaki
-
Publication number: 20070283684Abstract: An exhaust purifying apparatus has an adsorbent capable of adsorbing hydrocarbons in an exhaust passage of an internal combustion engine, estimates the temperature of the adsorbent by repeated processing to estimate the current value by adding an added value to the previous estimated value, and changes the added value in response to the intake air amount and the ignition timing of the internal combustion engine.Type: ApplicationFiled: June 7, 2007Publication date: December 13, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takuji Matsubara
-
Patent number: 7273043Abstract: When an injection sharing ratio r is neither 0 nor 1, an engine ECU executes a program including a step of calculating a purge reduction amount of an in-cylinder injector as fpg×r and calculating a purge reduction amount of an intake manifold injector as fpg×(1?r) when performing purge processing according to a current fuel injection sharing ratio of the injectors, and a step of calculating a correction fuel injection amount of the in-cylinder injector by raising the fuel injection amount to a minimum fuel injection amount, and calculating a correction fuel injection amount of the intake manifold injector by subtracting the raised amount from the fuel injection amount of the intake manifold injector when the fuel injection amount of the in-cylinder injector calculated by using the purge reduction amount is lower than the minimum injection amount.Type: GrantFiled: March 9, 2007Date of Patent: September 25, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeo Okubo, Zenichiro Mashiki, Nobuyuki Shibagaki, Hiroyuki Nomura, Yoshiyuki Shogenji, Kenichi Kinose, Takuji Matsubara, Yusuke Nakayama, Yukihiro Sonoda, Koji Morita
-
Publication number: 20070163536Abstract: Avoiding inconvenience during purge processing execution of fuel vapor in an internal combustion engine including an in-cylinder injector and an intake manifold injector. An engine ECU 300 executes a program including the steps of: when the purge control execution flag is ON (YES at S400), the step (S410) of calculating injection ratio (DI ratio) r; the step (420) of calculating the basic injection amounts of the in-cylinder injector and the intake manifold injector; when the injection ratio r is not 0 (NO at S430) and the injection ratio r is not 1 (NO at S460), the step (S480) of substituting 0 for purge reduction calculation value fpgd at the in-cylinder injector side, and substituting fpg for purge reduction calculation value fpgp of the intake manifold injector side; and the step (490) of calculating the final injection amounts of the in-cylinder injector and the intake manifold injector.Type: ApplicationFiled: March 9, 2007Publication date: July 19, 2007Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigeo Okubo, Zenichiro Mashiki, Nobuyuki Shibagaki, Hiroyuki Nomura, Yoshiyuki Shogenji, Kenichi Kinose, Takuji Matsubara, Yusuke Nakayama, Yukihiro Sonoda, Koji Morita
-
Patent number: 7234447Abstract: When an injection sharing ratio r is neither 0 nor 1, an engine ECU executes a program including a step of calculating a purge reduction amount of an in-cylinder injector as fpg×r and calculating a purge reduction amount of an intake manifold injector as fpg×(1-r) when performing purge processing according to a current fuel injection sharing ratio of the injectors, and a step of calculating a correction fuel injection amount of the in-cylinder injector by raising the fuel injection amount to a minimum fuel injection amount, and calculating a correction fuel injection amount of the intake manifold injector by subtracting the raised amount from the fuel injection amount of the intake manifold injector when the fuel injection amount of the in-cylinder injector calculated by using the purge reduction amount is lower than the minimum injection amount.Type: GrantFiled: June 13, 2005Date of Patent: June 26, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeo Okubo, Zenichiro Mashiki, Nobuyuki Shibagaki, Hiroyuki Nomura, Yoshiyuki Shogenji, Kenichi Kinose, Takuji Matsubara, Yusuke Nakayama, Yukihiro Sonoda, Koji Morita
-
Patent number: 7213450Abstract: A sealing valve 28 that controls a communication state between a fuel tank 10 and a canister 26 is provided. During stop of an internal combustion engine, the sealing valve 28 is generally closed, and the canister 26 is opened to the atmosphere. The sealing valve 28 is opened when the internal combustion engine is stopped, and differential pressure exceeding a valve opening determination value is generated between tank internal pressure and atmospheric pressure. A change in the tank internal pressure generated between before and after the sealing valve 28 is opened is detected. When the change in the tank internal pressure is below a predetermined determination value, closing failure of the sealing valve is determined.Type: GrantFiled: November 15, 2005Date of Patent: May 8, 2007Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takuji Matsubara, Toru Kidokoro, Yoshihiko Hyodo
-
Publication number: 20060168944Abstract: In an engine 5 including an in-cylinder injector, the valve timing of an intake valve is retarded by VVT (Variable Valve Timing) controlled by an engine ECU to decompress in a combustion chamber at engine startup. In accordance with a configuration in which the valve timing of intake valve is advanced in a stepped manner from an initial set value, fuel injection from in-cylinder injector is inhibited during the time when the advance is equal to or below a predetermined standard value, and fuel injection from in-cylinder injector is allowed when exceeding the predetermined standard value, whereby degradation in the exhaust emission level in accordance with start time decompression control can be suppressed.Type: ApplicationFiled: January 25, 2006Publication date: August 3, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshio Inoue, Tsukasa Abe, Shunsuke Fushiki, Mamoru Tomatsuri, Daigo Ando, Keiko Hasegawa, Osamu Harada, Katsuhiko Yamaguchi, Keita Fukui, Yukihiro Sonoda, Koji Morita, Takuji Matsubara, Yusuke Nakayama
-
Patent number: 7082815Abstract: Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.Type: GrantFiled: March 24, 2006Date of Patent: August 1, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takuji Matsubara, Toru Kidokoro, Yoshihiko Hyodo
-
Publication number: 20060162433Abstract: Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.Type: ApplicationFiled: March 24, 2006Publication date: July 27, 2006Inventors: Takuji Matsubara, Toru Kidokoro, Yoshihiko Hyodo
-
Patent number: 7043972Abstract: Disclosed is an evaporated fuel treatment device that includes a sealing valve installed between a fuel tank and a canister, a pump module pressure sensor for detecting the pressure on the canister side pressure, and a tank internal pressure sensor for detecting a tank internal pressure. Upon detection of a significant difference between the canister side pressure and tank internal pressure, the device concludes that no open failure exists in the sealing valve.Type: GrantFiled: November 5, 2003Date of Patent: May 16, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takuji Matsubara, Toru Kidokoro, Yoshihiko Hyodo