公开(公告)号：US11358436B2

公开(公告)日：2022-06-14

申请号：US16816265

申请日：2020-03-12

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hidefumi Aikawa ,  Manabu Orihashi ,  Yoshio Hasegawa ,  Takashi Ogawa ,  Yuji Miyoshi ,  Kunihiko Hayashi

IPC: B60H1/00 ,  B60H1/22

Abstract: 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.

公开(公告)号：US10906387B2

公开(公告)日：2021-02-02

申请号：US16384935

申请日：2019-04-16

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Takuya Hirai ,  Yuji Miyoshi ,  Tomohiro Shinagawa ,  Masatoshi Yano ,  Hiroyuki Sugihara ,  Ryo Michikawauchi ,  Kunihiko Hayashi ,  Yoichi Ogura ,  Hidefumi Aikawa ,  Yu Ofune

IPC: B60K11/02 ,  B60K6/26 ,  F01P3/12 ,  F01P7/16 ,  B60K1/00

Abstract: 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.

公开(公告)号：US10428720B2

公开(公告)日：2019-10-01

申请号：US15936065

申请日：2018-03-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshio Hasegawa ,  Yuji Miyoshi ,  Tomohiro Shinagawa ,  Yoshiharu Hirata

IPC: F01P7/16 ,  F01P3/00 ,  F01P3/02 ,  F01P5/10 ,  F01P11/16

Abstract: The cooling apparatus of the engine according to the invention supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage when the engine temperature is between first and second temperatures, and a supply of the cooling water to the heat exchanger is not requested. The first and second temperatures are lower than the engine completely-warmed temperature. The apparatus supplies the cooling water discharged from the cylinder block and head water passages, to the water passages through the heat exchanger when the engine temperature is between the second temperature and the engine completely-warmed temperature, and the supply of the cooling water to the heat exchanger is not requested.

公开(公告)号：US20190234289A1

公开(公告)日：2019-08-01

申请号：US16154851

申请日：2018-10-09

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Hiroyuki Sugihara ,  Tomohiro Shinagawa ,  Yuji Miyoshi ,  Takuya Hirai ,  Keisuke Tokai

IPC: F01P7/14 ,  B60K6/22 ,  B60K11/02 ,  B60L11/18 ,  F01P3/20 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6568

CPC classification number: F01P7/14 ,  B60K6/22 ,  B60K11/02 ,  B60L58/26 ,  B60Y2200/92 ,  B60Y2306/05 ,  F01P3/20 ,  F01P2023/08 ,  F01P2025/30 ,  F01P2050/24 ,  F01P2060/00 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6568 ,  H01M2220/20

Abstract: 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.

公开(公告)号：US10119446B2

公开(公告)日：2018-11-06

申请号：US15200327

申请日：2016-07-01

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koji Hagiwara ,  Toru Kidokoro ,  Yasushi Iwazaki ,  Hirotaka Saitoh ,  Yuji Miyoshi

IPC: F01N3/08 ,  F01N3/20 ,  F02D41/02 ,  F01N11/00 ,  F02D41/14 ,  F02D41/32 ,  F02D41/40 ,  F02D41/00

Abstract: A deterioration diagnosis apparatus for an exhaust gas purification apparatus according to the invention performs an induction process when an internal combustion engine is operating at a lean air-fuel ratio, measures the air-fuel ratio of the exhaust gas flowing into the SCR catalyst and the air-fuel ratio of the exhaust gas flowing out of the SCR catalyst by the air-fuel ratio sensor during the period through which the induction process is performed, and diagnoses deterioration of the SCR catalyst based on the difference between the air-fuel ratios thus measured. The diagnosis apparatus adjusts the quantity of reducing agent supplied to a hydrogen production catalyst during the period through which the induction process is performed, taking account of the degree of deterioration of the hydrogen production catalyst.

公开(公告)号：US20180313255A1

公开(公告)日：2018-11-01

申请号：US15965569

申请日：2018-04-27

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiharu Hirata ,  Yuji Miyoshi ,  Tomohiro Shinagawa ,  Hiroyuki Sugihara

IPC: F01P7/16 ,  F02F1/10 ,  F01P3/04

Abstract: 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.

公开(公告)号：US20180298808A1

公开(公告)日：2018-10-18

申请号：US15949732

申请日：2018-04-10

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yasuhiko SUGIURA ,  Rentaro Kuroki ,  Ryo Michikawauchi ,  Yuji Miyoshi

IPC: F01P7/16 ,  F01P3/02

Abstract: A cooling apparatus of an internal combustion engine according to the invention comprises a first passage formed in the cylinder block, through which the cooling medium flows for cooling between-bores portions, a second passage formed in the cylinder block, through which the cooling medium flows for cooling a bore-surrounding portion, and a cooling medium supplying mechanism for supplying the cooling medium to the first and second passages such that ability of the cooling medium for cooling the between-bore portions, is different from the ability of the cooling medium for cooling the bore-surrounding portion.

公开(公告)号：US20180283259A1

公开(公告)日：2018-10-04

申请号：US15936051

申请日：2018-03-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshio HASEGAWA ,  Yuji Miyoshi ,  Tomohiro Shinagawa ,  Yoshiharu Hirata ,  Ryo Michikawauchi

IPC: F01P7/16 ,  F01P3/02 ,  F01P5/10

CPC classification number: F01P7/165 ,  F01P3/02 ,  F01P5/10 ,  F01P7/162 ,  F01P2003/027 ,  F01P2003/028 ,  F01P2007/146 ,  F01P2037/00 ,  F02F1/10 ,  F02F1/36

Abstract: A cooling apparatus of an engine of the invention has a circulation passage for supplying cooling water to head and block passages through a heat exchanger. The apparatus circulates the cooling water through the circulation passage when a second condition is satisfied and then, a first condition is satisfied. The first condition includes a water supply condition that a supply of the cooling water to the exchanger is requested. The second condition includes the water supply condition and a condition that a cooling water temperature is lower than an engine completely-warmed water temperature.

公开(公告)号：US10087853B2

公开(公告)日：2018-10-02

申请号：US15591839

申请日：2017-05-10

Applicant: Toyota Jidosha Kabushiki Kaisha

Inventor： Yuji Yamaguchi ,  Hirokazu Ito ,  Yuji Miyoshi

IPC: F01N3/00 ,  F02D9/02 ,  F02D41/00 ,  F02D41/02 ,  F02D41/26

Abstract: An object is to supply fresh air and EGR gas into a cylinder in good balance according to the required load in a naturally aspirated gasoline engine. When the operation state of the engine falls in a low load range, a control apparatus adjusts the degree of opening of the second throttle while keeping the first throttle fully open and controls EGR gas quantity by adjusting the degree of opening of the EGR valve. When the operation state falls in a middle load range, the apparatus controls EGR gas quantity by adjusting the degree of opening of the first throttle while keeping the EGR valve fully open. When the operation state falls in a high load range, the apparatus adjusts the degree of opening of the first throttle while keeping the second throttle fully open and controls EGR gas quantity by adjusting the degree of opening of the EGR valve.

公开(公告)号：US10012165B2

公开(公告)日：2018-07-03

申请号：US15313739

申请日：2015-05-22

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Norifumi Takada ,  Yasuyuki Takama ,  Yuji Miyoshi

IPC: F01N3/00 ,  F02D41/14 ,  F01N3/20 ,  F01N3/08 ,  F01N11/00 ,  F01N3/10 ,  F02D41/30

CPC classification number: F02D41/1454 ,  F01N3/0814 ,  F01N3/0864 ,  F01N3/101 ,  F01N3/20 ,  F01N11/007 ,  F01N2430/06 ,  F01N2560/025 ,  F01N2570/10 ,  F01N2570/12 ,  F01N2570/14 ,  F01N2900/1402 ,  F02D41/0295 ,  F02D41/126 ,  F02D41/1439 ,  F02D41/1475 ,  F02D41/3005 ,  F02D2200/0814 ,  F02D2200/0816 ,  Y02T10/20

Abstract: A control device for an internal combustion engine is provided. The control device includes an electronic control unit. The electronic control unit is configured to set a target air-fuel ratio to a rich air-fuel ratio from a time at which fuel cut control for terminating fuel supply to a combustion chamber during operation of the internal combustion engine is terminated to a time at which an output air-fuel ratio of a downstream-side air-fuel ratio sensor becomes a rich determination air-fuel ratio or lower, temporarily set the target air-fuel ratio to the rich air-fuel ratio after the output air-fuel ratio of the downstream-side air-fuel ratio sensor becomes the rich determination air-fuel ratio or lower, and thereafter set the target air-fuel ratio to a lean air-fuel ratio.