Patents by Inventor Yuji Miyoshi
Yuji Miyoshi 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: 20210283984Abstract: A temperature control system includes a heater core utilizing heat of a heat medium; an engine heat exchanger utilizing exhaust heat of an engine to heat the heat medium; a condenser utilizing heat other than the exhaust heat to heat the heat medium; a heat circuit having the heater core and condenser; a communication flow path making the engine heat exchanger communicate with the heat circuit; and a connection state switching mechanism switching a flow state of the heat medium, between a first state and a second state. In the first state, the heat medium flows through the heat circuit, while flowing through the heater core, and in the second state, the heat medium flows through the heat circuit without flowing through the heater core. The heat circuit is arranged at a front of a passenger compartment, and the engine heat exchanger is arranged at a rear of the compartment.Type: ApplicationFiled: February 5, 2021Publication date: September 16, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yuji MIYOSHI
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Patent number: 11072223Abstract: A control apparatus of a heat exchanging system according to the invention activates a connection system to connect an engine water passage to a heater water passage and then, shuts off a heater water passage portion between a portion, into which heat exchanging water flows from the engine water passage and a portion, from which the heat exchanging water flows out toward the engine water passage, and decreases heater pump and engine pump duty ratios when the duty ratios should be decreased for controlling core and engine flow rates to requested flow rates after the particular water passage is shut off, and the engine water passage is connected to the heater water passage.Type: GrantFiled: July 9, 2018Date of Patent: July 27, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hidefumi Aikawa, Yoichi Ogura, Masatoshi Yano, Yuji Miyoshi, Yu Ofune
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Patent number: 11047285Abstract: A control apparatus of an internal combustion engine controls a heat exchange cooling water flow rate which is a flow rate of cooling water supplied to an exhaust heat recovery cooler apparatus, to a larger flow rate when the control apparatus executes an EGR control, and the exhaust heat recovery cooler apparatus performs an exhaust heat recovery function, than when the control apparatus executes the EGR control, and the exhaust heat recovery cooler apparatus does not perform the exhaust heat recovery function.Type: GrantFiled: November 1, 2019Date of Patent: June 29, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuya Hirai, Takashi Hotta, Yuji Miyoshi
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Publication number: 20210101448Abstract: A vehicle-mounted temperature controller 100 provided with a compressor 2 having a compression part 2a compressing a refrigerant and a drive motor 2b driving the compression part 2a and using waste heat accompanying driving of the compression part 2a to make the temperature of the refrigerant rise, a blower 61 blowing air to a heater core 145 raised in temperature by receiving heat of the refrigerant and blowing air exchanged in heat with the heater core 145 to the inside of the passenger compartment, and an electronic control unit 51 controlling a current phase of the drive motor 2b to a phase by which a ratio of change of an output of the drive motor 2b to a change of the current phase becomes relatively larger to thereby drive the drive motor 2b by an inefficient drive operation when the blower 61 is in a nondriven state and controlling the current phase to a phase by which a ratio of change of an output of the drive motor 2b to a change of the current phase becomes relatively smaller to thereby drive theType: ApplicationFiled: September 29, 2020Publication date: April 8, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuya HIRAI, Hidefumi AIKAWA, Yuji MIYOSHI
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Patent number: 10906592Abstract: A vehicle body structure satisfies at least one of the following (A), (B), and (C): (A) an adhesive amount per unit area of a first adhesive in a second adjacent part is smaller than an adhesive amount per unit area of the first adhesive in a first adjacent part; (B) an adhesive amount per unit area of a panel adhesive in a second panel adjacent part is smaller than an adhesive amount per unit area of the panel adhesive in a first panel adjacent part; and (C) an adhesive amount per unit area of a second adhesive in a stacking adjacent part is smaller than an adhesive amount per unit area of the second adhesive in a non-stacking adjacent part.Type: GrantFiled: November 23, 2018Date of Patent: February 2, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Yuji Miyoshi, Tomoya Yoshida, Junichi Tanaka, Masanobu Kobashi
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Patent number: 10906387Abstract: A cooling apparatus of a vehicle driving system of the invention connects an engine water circulation passage to a hybrid system water circulation passage and flows cooling water in the engine water circulation passage and the hybrid system water circulation passage to cool a first hybrid system component by the cooling water cooled by an engine radiator and cool a second hybrid system component by the cooling water cooled by a hybrid system radiator when an engine cooling process is not requested, a first hybrid system cooling process is requested, a second hybrid system cooling process is requested, and a connection condition is satisfied. The connection condition is satisfied when the engine cooling process is not requested, and the cooling water flowing into the hybrid system water circulation passage from the engine water circulation passage, can cool the first hybrid system component.Type: GrantFiled: April 16, 2019Date of Patent: February 2, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takuya Hirai, Yuji Miyoshi, Tomohiro Shinagawa, Masatoshi Yano, Hiroyuki Sugihara, Ryo Michikawauchi, Kunihiko Hayashi, Yoichi Ogura, Hidefumi Aikawa, Yu Ofune
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Publication number: 20210008951Abstract: A vehicle-mounted temperature controller has a first heat circuit and a refrigeration circuit. The first heat circuit has a first radiator exchanging heat with outside air, a first heat exchanger, and a first pump, and configured so that a first heat medium is circulated therethrough. The refrigeration circuit has the first heat exchanger discharging heat from the refrigerant to a first heat medium to make a refrigerant condense, a second heat exchanger absorbing heat to the refrigerant to thereby make the refrigerant evaporate and to cool an object to be cooled, and a compressor, and is configured so that the refrigerant circulates through the first heat exchanger and the second heat exchanger and thereby a refrigeration cycle is realized. When the object to be cooled starts being cooled, the compressor is started up after the first pump is started up.Type: ApplicationFiled: May 29, 2020Publication date: January 14, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hidefumi AIKAWA, Yuji MIYOSHI
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Patent number: 10890102Abstract: A cooling apparatus of an internal combustion engine according to the invention controls an activation of a flow rate changing valve such that a block water flow rate proportion when an engine output is relatively large in a range of the engine output equal to or larger than a predetermine engine output, is larger than the block water flow rate proportion when the engine output is relatively small in the range of the engine output equal to or larger than a predetermine engine output.Type: GrantFiled: April 27, 2018Date of Patent: January 12, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiharu Hirata, Yuji Miyoshi, Tomohiro Shinagawa, Hiroyuki Sugihara
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Patent number: 10865694Abstract: A cooling apparatus of a vehicle of the invention comprises an engine cooling system, a device cooling system, and a connection apparatus configured to connect an engine circulation circuit of the engine cooling system and a device circulation circuit of the device cooling system to each other such that heat exchanging liquid cooled by a device radiator of the device cooling system, is supplied to an engine passage formed in an internal combustion engine without flowing through a device passage formed in the device including at least one of a motor of the vehicle, a battery for storing electric power to be supplied to the motor, and a power control unit for controlling a supply of the electric power from the battery to the motor.Type: GrantFiled: October 9, 2018Date of Patent: December 15, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Sugihara, Tomohiro Shinagawa, Yuji Miyoshi, Takuya Hirai, Keisuke Tokai
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Patent number: 10843742Abstract: A body structure of a vehicle satisfy at least one of the following (A), (B), and (C): (A) an adhesive amount per unit area of a first adhesive in a crossing part is smaller than an adhesive amount per unit area of the first adhesive in an adjacent part; (B) an adhesive amount per unit area of a panel adhesive in a panel crossing part is smaller than an adhesive amount per unit area of the panel adhesive in a panel adjacent part; and (C) an adhesive amount per unit area of a second adhesive in a second joining part crossing part is smaller than an adhesive amount per unit area of the second adhesive in a second joining part adjacent part.Type: GrantFiled: November 23, 2018Date of Patent: November 24, 2020Assignee: MAZDA MOTOR CORPORATIONInventors: Yuji Miyoshi, Tomoya Yoshida, Masanobu Kobashi, Junichi Tanaka
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Publication number: 20200353790Abstract: A vehicle-mounted temperature controller used in a vehicle having a motor, a battery, and a PCU is provided with a low temperature circuit and a refrigeration circuit. The low temperature circuit has a battery heat exchanger, a PCU heat exchanger, a radiator, and a chiller, and the cooling water circulates through them. The refrigeration circuit has a condenser and the chiller absorbing heat from the cooling water to the refrigerant, and the refrigerant circulates through them. The low temperature circuit is configured to be able to switch connection states between a first state where the battery heat exchanger and the chiller are connected, the PCU heat exchanger and the radiator are connected, and the battery heat exchanger and the chiller are not connected to the PCU heat exchanger and the radiator, and a second state where the chiller, the PCU heat exchanger, and the radiator are connected.Type: ApplicationFiled: April 20, 2020Publication date: November 12, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Yuji MIYOSHI
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Patent number: 10823040Abstract: An exhaust gas control system includes an upstream purification device disposed in an exhaust passage of the internal combustion engine, a downstream purification device disposed in a portion of the exhaust passage downstream from the upstream purification device, a fuel addition valve disposed in a portion of the exhaust passage upstream from the upstream purification device, and a urea addition valve disposed in a portion of the exhaust passage between the upstream purification device and the downstream purification device, and a cooling device. The cooling device is configured such that refrigerant cools the fuel addition valve first and then cools the urea addition valve subsequent to the fuel addition valve.Type: GrantFiled: June 27, 2017Date of Patent: November 3, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Asaura, Masaaki Sato, Ryohei Ono, Yuji Miyoshi
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Patent number: 10808599Abstract: A temperature control apparatus of a vehicle of the invention flows a cooling medium in an engine circulation circuit and a battery circulation circuit and an activation of an engine heat exchanging system so as not to perform an engine heat exchanging when an engine temperature is lower than an engine warming end temperature and a battery temperature is lower than a predetermined battery temperature lower than a battery warming end temperature, and flows the cooling medium in the engine circulation circuit and the battery circulation circuit and the activation of the engine heat exchanging system so as to perform the engine heat exchanging when the engine temperature is lower than the engine warming end temperature, and the battery temperature is equal to or higher than the predetermined battery temperature.Type: GrantFiled: January 4, 2019Date of Patent: October 20, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoichi Ogura, Kunihiko Hayashi, Yuji Miyoshi, Masatoshi Yano, Yu Ofune
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Publication number: 20200324611Abstract: A vehicle-mounted temperature controller includes a first heat circuit having a heat exchanger for a heat generating device and a first heat exchanger; a second heat circuit having a heat medium flow path of an engine and a second heat exchanger; and a refrigeration circuit having the first heat exchanger to make the refrigerant evaporate and the second heat exchanger to make the refrigerant condense. A circulation mode control device control a circulation mode so that the second heat medium raised in temperature by absorbing heat from the refrigerant at the second heat exchanger flows into the flow path, when the engine is stopped and heat is discharged from the heat generating device to the first heat medium in the heat exchanger for the heat generating device and heat is absorbed from the first heat medium to the refrigerant in the first heat exchanger.Type: ApplicationFiled: April 9, 2020Publication date: October 15, 2020Inventors: Masatoshi YANO, Yuji MIYOSHI
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Publication number: 20200317026Abstract: A vehicle-mounted temperature controller, comprising: a first heat circuit having a heater core used for heating and a first heat exchanger and configured so that a first heat medium is circulated therethrough; a refrigeration circuit having the first heat exchanger condensing the refrigerant and an evaporator evaporating the refrigerant, and configured to realize a refrigeration cycle; and a heat medium flow path of an internal combustion engine configured to communicate with the first heat circuit so that the first heat medium circulates therethrough. The first heat circuit is configured so that an outlet of the heat medium flow path is communicated with a core downstream side part positioned downstream of the heater core and upstream of the first heat exchanger and a core upstream side part positioned downstream of the first heat exchanger and upstream of the heater core.Type: ApplicationFiled: April 1, 2020Publication date: October 8, 2020Applicant: Toyota Jidosha Kabushiki KaishaInventors: Manabu Kitamura, Hidefumi Aikawa, Yuji Miyoshi, Masaki Suzuki
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Publication number: 20200290426Abstract: A vehicle-mounted temperature controller includes a low temperature circuit and a refrigeration circuit. The low temperature circuit has a heat generating equipment heat exchanger exchanging heat with heat generating equipment, a radiator, a first heat exchanger, and a three-way valve. The refrigeration circuit has a second heat exchanger discharging heat from the refrigerant to a high temperature circuit to make the refrigerant condense, and the first heat exchanger making the refrigerant absorb heat from the cooling water to make the refrigerant evaporate. The low temperature circuit includes a first partial circuit through which the cooling water flows through the radiator and the first heat exchanger, and a second partial circuit through which the cooling water flows through the heat generating equipment heat exchanger without passing through the radiator and the first heat exchanger. The cooling water circulates simultaneously and separately at these first partial circuit and second partial circuit.Type: ApplicationFiled: March 12, 2020Publication date: September 17, 2020Inventors: Hidefumi AIKAWA, Manabu ORIHASHI, Yoshio HASEGAWA, Takashi OGAWA, Yuji MIYOSHI, Kunihiko HAYASHI
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Publication number: 20200248640Abstract: A control apparatus of an internal combustion engine controls a heat exchange cooling water flow rate which is a flow rate of cooling water supplied to an exhaust heat recovery cooler apparatus, to a larger flow rate when the control apparatus executes an EGR control, and the exhaust heat recovery cooler apparatus performs an exhaust heat recovery function, than when the control apparatus executes the EGR control, and the exhaust heat recovery cooler apparatus does not perform the exhaust heat recovery function.Type: ApplicationFiled: November 1, 2019Publication date: August 6, 2020Inventors: Takuya HIRAI, Takashi HOTTA, Yuji MIYOSHI
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Patent number: 10647177Abstract: A control apparatus of a heat exchanging system according to the invention, decreases a duty ratio of the heater pump after connecting an engine water passage to a heater water passage, shutting off a predetermined water passage portion of the heater water passage, and increasing a duty ratio of an engine pump when the controls for shutting off the predetermined water passage portion, connecting the engine water passage to the heater water passage, decreasing the duty ratio of the heater pump, and increasing the duty ratio of the engine pump, are requested to be executed.Type: GrantFiled: July 5, 2018Date of Patent: May 12, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masatoshi Yano, Hidefumi Aikawa, Yoichi Ogura, Yuji Miyoshi, Yu Ofune
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Patent number: 10634039Abstract: The cooling apparatus of the internal combustion engine according to the invention executes an incompletely-warmed state control for supplying the cooling water to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and supplying the cooling water to the cylinder head water passage from the cylinder block water passage when the temperature of the cooling water is lower than the engine completely-warmed water temperature at which the engine is estimated to be warmed completely.Type: GrantFiled: March 27, 2018Date of Patent: April 28, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroyuki Sugihara, Yuji Miyoshi
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Patent number: 10625570Abstract: A control apparatus according to the invention is applied to a heat exchanging system comprising a connection system for connecting an engine water passage for heat exchanging water for cooling an internal combustion engine and the heater water passage for the heat exchanging water for heating a heater core to each other. The apparatus activates the connection system to connect the engine water passage to the heater water passage when a temperature of the heat exchanging water circulating through the engine water passage, is equal to or higher than the temperature of the heat exchanging water circulating through the heater water passage, and an interior of a vehicle is requested to be warmed up.Type: GrantFiled: July 5, 2018Date of Patent: April 21, 2020Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hidefumi Aikawa, Yoichi Ogura, Yuji Miyoshi, Masatoshi Yano, Yu Ofune