Patents by Inventor Yoshihiro Furuya
Yoshihiro Furuya 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).
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Publication number: 20240001929Abstract: During the execution of the combustion stopping process for continuing the combustion of the remaining cylinders while the combustion of some of the plurality of cylinders provided in the engine is stopped, the first vibration damping process for generating the vibration damping torque in the first rotary electric machine M1 and the second vibration damping process for generating the vibration damping torque in the second rotary electric machine M2 are executed.Type: ApplicationFiled: April 19, 2023Publication date: January 4, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keita OBARA, Yoshihiro FURUYA, Hideyuki HANDA
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Patent number: 11433871Abstract: An ECU is configured to control an SOC control center of a battery and perform an engine torque suppression control. The engine torque suppression control is a control that suppresses output of an engine during a predetermined period of time after starting a system, and causes motor generators to output torque supplementing the suppressed output of the engine. When a deposition amount of PM on a filter exceeds a first specified amount, the ECU raises the SOC control center by controlling the motor generators before stopping the system as compared to when the deposition amount of PM is lower than a specified amount, and performs the engine torque suppression control at a next start after stopping the system.Type: GrantFiled: July 30, 2020Date of Patent: September 6, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihiro Furuya
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Patent number: 11131232Abstract: A cooling system of an internal combustion engine includes a control valve that regulates the flow of a coolant in a circulation circuit, and an electronic control unit. The electronic control unit is configured to have the following functions: controlling the driving of a motor of the control valve; calculating a motor torque based on an effective voltage applied to the motor; calculating a valve body torque that is part of the motor torque, based on an angular acceleration rate of the motor; and calculating a driving stress based on a difference between the motor torque and the valve body torque.Type: GrantFiled: December 3, 2019Date of Patent: September 28, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihiro Furuya
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Publication number: 20210129826Abstract: An ECU is configured to control an SOC control center of a battery and perform an engine torque suppression control. The engine torque suppression control is a control that suppresses output of an engine during a predetermined period of time after starting a system, and causes motor generators to output torque supplementing the suppressed output of the engine. When a deposition amount of PM on a filter exceeds a first specified amount, the ECU raises the SOC control center by controlling the motor generators before stopping the system as compared to when the deposition amount of PM is lower than a specified amount, and performs the engine torque suppression control at a next start after stopping the system.Type: ApplicationFiled: July 30, 2020Publication date: May 6, 2021Inventor: Yoshihiro FURUYA
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Patent number: 10927747Abstract: A cooling system of an internal combustion engine includes an adjustment valve configured to adjust a flow rate of a cooling liquid discharged from a water jacket. A controller for the cooling system includes circuitry configured to execute flow-restriction control that controls the adjustment valve to restrict discharge of the cooling liquid from the water jacket, thereby increasing temperature of an engine body. The circuitry is configured to execute the flow-restriction control so that temperature of the cooling liquid in the water jacket at which the flow-restriction control is terminated is lower when an ambient pressure is low than when the ambient pressure is high.Type: GrantFiled: June 6, 2018Date of Patent: February 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Rihito Kaneko, Noboru Takagi, Naoto Hisaminato, Mitsuru Yamaguchi, Hirokazu Andoh, Masaaki Yamaguchi, Yoshihiro Furuya
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Patent number: 10808596Abstract: A cooling device of an internal combustion engine includes a control valve that regulates the flow of a cooling liquid in a circulation circuit, and an electronic control unit. The electronic control unit is configured to have the following functions: controlling driving of a motor of the control valve; determining whether or not the shifting speed of a valve body of the control valve has decreased rapidly; calculating a motor torque based on an effective voltage applied to the motor; deriving a collision factor based on a smoothed angular speed value; and when the electronic control unit determines that the shifting speed of the valve body has decreased rapidly, calculating a rapid-decrease-caused stress so as to become larger as a product of the motor torque and the collision factor becomes larger.Type: GrantFiled: December 4, 2019Date of Patent: October 20, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihiro Furuya
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Patent number: 10808597Abstract: An internal combustion engine includes a water jacket, a cooling water pump as a cooling liquid pump, and an adjusting valve. A control device for the internal combustion engine executes the water stoppage control of increasing the temperature of the engine body by limiting the discharge of the cooling liquid from the water jacket by the adjusting valve, and an automatic stop and automatic startup control of automatically stopping and automatically starting the internal combustion engine. The control device increases the fuel injection amount for automatically starting the internal combustion engine in a case where the water stoppage control is being executed when the internal combustion engine is automatically stopped as compared with a case where the water stoppage control is not being executed when the internal combustion engine is automatically stopped.Type: GrantFiled: September 7, 2018Date of Patent: October 20, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshihiro Furuya, Rihito Kaneko, Noboru Takagi, Masaaki Yamaguchi, Hirokazu Ando, Mitsuru Yamaguchi
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Publication number: 20200240315Abstract: A cooling system of an internal combustion engine includes a control valve that regulates the flow of a coolant in a circulation circuit, and an electronic control unit. The electronic control unit is configured to have the following functions: controlling the driving of a motor of the control valve; calculating a motor torque based on an effective voltage applied to the motor; calculating a valve body torque that is part of the motor torque, based on an angular acceleration rate of the motor; and calculating a driving stress based on a difference between the motor torque and the valve body torque.Type: ApplicationFiled: December 3, 2019Publication date: July 30, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihiro FURUYA
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Publication number: 20200240316Abstract: A cooling device of an internal combustion engine includes a control valve that regulates the flow of a cooling liquid in a circulation circuit, and an electronic control unit. The electronic control unit is configured to have the following functions: controlling driving of a motor of the control valve; determining whether or not the shifting speed of a valve body of the control valve has decreased rapidly; calculating a motor torque based on an effective voltage applied to the motor; deriving a collision factor based on a smoothed angular speed value; and when the electronic control unit determines that the shifting speed of the valve body has decreased rapidly, calculating a rapid-decrease-caused stress so as to become larger as a product of the motor torque and the collision factor becomes larger.Type: ApplicationFiled: December 4, 2019Publication date: July 30, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventor: Yoshihiro Furuya
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Patent number: 10619554Abstract: A coolant circuit of an engine cooling apparatus includes a first passage where coolant flows through a radiator and a second passage where coolant flows without passing through the radiator. A coolant control valve controls a first passage flow rate Frad and a second passage flow rate Fsec. An outlet coolant temperature sensor detects an outlet coolant temperature Tout, which is a coolant temperature before a branching point of the first passage and the second passage. An inlet coolant temperature sensor detects an inlet coolant temperature Tin, which is a coolant temperature after a merging point of the first passage and the second passage. A coolant temperature estimator calculates a radiator coolant temperature Trad, which is a coolant temperature at a coolant exit of the radiator, when the first passage flow rate Frad is greater than or equal to a specified flow rate using equation (1).Type: GrantFiled: September 12, 2018Date of Patent: April 14, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Noboru Takagi, Masaaki Yamaguchi, Rihito Kaneko, Hirokazu Ando, Mitsuru Yamaguchi, Yoshihiro Furuya
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Patent number: 10508588Abstract: A cooling device includes: an air blast passage; a heater core that is disposed in the air blast passage; an air blast volume adjusting member that is opened and closed to adjust an air blast volume which flows in the heater core; a flow rate adjuster that adjusts a flow rate of the coolant which is introduced into the heater core; and a controller. The controller sets the flow rate of the coolant which is adjusted by the flow rate adjuster to be less than a lower limit value of an adjustable range of the flow rate of the coolant which is adjusted by the flow rate adjuster in a vehicle compartment air-conditioning state in which the air blast volume adjusting member allows an air blast to flow to the heater core when the air blast volume adjusting member fully closes the heater core side of the air blast passage.Type: GrantFiled: April 24, 2018Date of Patent: December 17, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Rihito Kaneko, Noboru Takagi, Naoto Hisaminato, Mitsuru Yamaguchi, Hirokazu Andoh, Masaaki Yamaguchi, Yoshihiro Furuya
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Patent number: 10371115Abstract: A control device for an internal combustion engine includes a knock control system, a cooling system, and an electronic control unit. The knock control system is configured to ignite a spark plug an ignition crank angle obtained by retarding the ignition crank angle in response to an occurrence of the knocking. The electronic control unit is configured to supply a command value corresponding to a target value of a cooling parameter to the cooling system such that the cooling system performs cooling of the internal combustion engine according to the command value. The electronic control unit is configured to correct the command value based on a KCS learned value such that as the KCS learned value increases, a correction amount for correcting the command value increases in correction amount in a direction in which a cooling capacity of the cooling system increases.Type: GrantFiled: June 3, 2016Date of Patent: August 6, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takeshi Kitayama, Yoshiyuki Yamashita, Yoshihiro Furuya, Hiroki Murata
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Publication number: 20190093546Abstract: A coolant circuit of an engine cooling apparatus includes a first passage where coolant flows through a radiator and a second passage where coolant flows without passing through the radiator. A coolant control valve controls a first passage flow rate Frad and a second passage flow rate Fsec. An outlet coolant temperature sensor detects an outlet coolant temperature Tout, which is a coolant temperature before a branching point of the first passage and the second passage. An inlet coolant temperature sensor detects an inlet coolant temperature Tin, which is a coolant temperature after a merging point of the first passage and the second passage. A coolant temperature estimator calculates a radiator coolant temperature Trad, which is a coolant temperature at a coolant exit of the radiator, when the first passage flow rate Frad is greater than or equal to a specified flow rate using equation (1).Type: ApplicationFiled: September 12, 2018Publication date: March 28, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Noboru TAKAGI, Masaaki YAMAGUCHI, Rihito KANEKO, Hirokazu ANDO, Mitsuru YAMAGUCHI, Yoshihiro FURUYA
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Publication number: 20190078496Abstract: An internal combustion engine includes a water jacket, a cooling water pump as a cooling liquid pump, and an adjusting valve. A control device for the internal combustion engine executes the water stoppage control of increasing the temperature of the engine body by limiting the discharge of the cooling liquid from the water jacket by the adjusting valve, and an automatic stop and automatic startup control of automatically stopping and automatically starting the internal combustion engine. The control device increases the fuel injection amount for automatically starting the internal combustion engine in a case where the water stoppage control is being executed when the internal combustion engine is automatically stopped as compared with a case where the water stoppage control is not being executed when the internal combustion engine is automatically stopped.Type: ApplicationFiled: September 7, 2018Publication date: March 14, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro FURUYA, Rihito KANEKO, Noboru TAKAGI, Masaaki YAMAGUCHI, Hirokazu ANDO, Mitsuru YAMAGUCHI
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Patent number: 10184419Abstract: A cooling device for an internal combustion engine includes a HT cooling system, a LT cooling system, and an electronic control unit. The electronic control unit is configured to, if a HT temperature has reached a HT determination value, control an operation state of the HT cooling system to start cooling for maintaining the HT temperature at a HT target temperature. The electronic control unit is configured to, if a LT temperature being a temperature of a LT cooling medium has reached a LT determination value, start a LT cooling control for maintaining the LT temperature at a LT target temperature under a specific condition where an early warm-up of the internal combustion engine is not required. The electronic control unit is configured to start the LT cooling control if the HT temperature has reached the HT determination value under a condition where the early warm-up is required.Type: GrantFiled: June 21, 2016Date of Patent: January 22, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Satoko Tofukuji, Yoshihiro Furuya
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Publication number: 20190010857Abstract: A cooling system of an internal combustion engine includes an adjustment valve configured to adjust a flow rate of a cooling liquid discharged from a water jacket. A controller for the cooling system includes circuitry configured to execute flow-restriction control that controls the adjustment valve to restrict discharge of the cooling liquid from the water jacket, thereby increasing temperature of an engine body. The circuitry is configured to execute the flow-restriction control so that temperature of the cooling liquid in the water jacket at which the flow-restriction control is terminated is lower when an ambient pressure is low than when the ambient pressure is high.Type: ApplicationFiled: June 6, 2018Publication date: January 10, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Rihito KANEKO, Noboru TAKAGI, Naoto HISAMINATO, Mitsuru YAMAGUCHI, Hirokazu ANDOH, Masaaki YAMAGUCHI, Yoshihiro FURUYA
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Publication number: 20180347445Abstract: A cooling device includes: an air blast passage; a heater core that is disposed in the air blast passage; an air blast volume adjusting member that is opened and closed to adjust an air blast volume which flows in the heater core; a flow rate adjuster that adjusts a flow rate of the coolant which is introduced into the heater core; and a controller. The controller sets the flow rate of the coolant which is adjusted by the flow rate adjuster to be less than a lower limit value of an adjustable range of the flow rate of the coolant which is adjusted by the flow rate adjuster in a vehicle compartment air-conditioning state in which the air blast volume adjusting member allows an air blast to flow to the heater core when the air blast volume adjusting member fully closes the heater core side of the air blast passage.Type: ApplicationFiled: April 24, 2018Publication date: December 6, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Rihito Kaneko, Noboru Takagi, Naoto Hisaminato, Mitsuru Yamaguchi, Hirokazu Andoh, Masaaki Yamaguchi, Yoshihiro Furuya
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Patent number: 9759120Abstract: High temperature (HT) and low temperature (LT) cooling water, the LT cooling water being at a lower temperature than the HT cooling water, circulate in HT and LT cooling water flows in respective channels. A controller controls to set the temperature of the LT cooling water lower in a case where an operating point of an engine lies in a particular region in an operational region of the engine, the particular region including a region in which the load is high and the engine speed is low, than in a case where the operating point lies in an operational region other than the particular region. Furthermore, the controller narrows the particular region in a direction toward higher loads in a case where the temperature of the HT cooling water is lower than a predetermined temperature.Type: GrantFiled: April 7, 2016Date of Patent: September 12, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro Furuya, Yuji Miyoshi, Satoko Tofukuji, Nobuki Kawamoto, Daishi Takahashi
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Patent number: 9688277Abstract: If a predicted compression-time in-cylinder temperature Tp having a positive correlation with the intensity of predicted pre-ignition is equal to or higher than a pre-ignition threshold value Tig when a request for automatic start is made, a forward/reverse switching mechanism is placed in a released state, and an engine is automatically started. If the predicted compression-time in-cylinder temperature Tp is lower than the pre-ignition threshold value Tig, the forward/reverse switching mechanism is placed in an engaged state, and the engine is automatically started.Type: GrantFiled: January 5, 2016Date of Patent: June 27, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yoshihiro Furuya
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Publication number: 20170100380Abstract: A tablet characterized by comprising 5-methyl-1-phenyl-2-(1H)-pyridone as the main ingredient and, based on the main ingredient, 10 to 50 wt. % excipient, 5 to 40 wt. % disintegrator, 1 to 10 wt. % binder, 0.5 to 5 wt. % lubricant, 2 to 6 wt. % coating basis, and 0.05 to 3 wt. % light-shielding agent, wherein the odor or bitterness of the 5-methyl-1-phenyl-2-(1H)-pyridone is masked and the light stability is improved.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: Gakuji Kiyonaka, Yoshihiro Furuya, Yusuke Suzuki