公开(公告)号：US10434867B1

公开(公告)日：2019-10-08

申请号：US16270525

申请日：2019-02-07

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

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

IPC: B60K11/04 ,  B60K6/22 ,  F01P3/18 ,  F01P7/14

Abstract: A cooling apparatus of vehicle driving apparatuses of the invention controls flow of cooling water so as to cool engine cooling water by at least two radiators when a requested ability of cooling an internal combustion engine, is equal to or larger than a requested ability of cooling a hybrid device. The number of the radiators used for cooling the engine cooling water is larger than the number of the remaining radiator(s). The cooling apparatus controls the flow of the cooling water so as to cool device cooling water at least two radiators when the requested ability of cooling the hybrid device, is larger than the requested ability of cooling the internal combustion engine. The number of the radiators used for cooling the device cooling water is larger than the number of the remaining radiator(s).

公开(公告)号：US10415455B2

公开(公告)日：2019-09-17

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 ,  F01P3/00 ,  F01P3/02 ,  F01P5/10 ,  F02F1/36 ,  F02F1/10 ,  F01P7/14

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：US10385759B2

公开(公告)日：2019-08-20

申请号：US15895239

申请日：2018-02-13

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA ,  AISIN SEIKI KABUSHIKI KAISHA

Inventor： Yoshio Hasegawa ,  Tomohiro Shinagawa ,  Kenichi Kubota ,  Ryo Michikawauchi ,  Yuji Miyoshi ,  Yoshiharu Hirata ,  Naoto Yumisashi

IPC: F01P7/16 ,  F01P3/02 ,  F01P5/10 ,  F01P3/18 ,  F01P7/14

Abstract: A cooling system includes: a first coolant passage; a second coolant passage; a pump; a radiator; a third coolant passage; a connection switching mechanism that switches between a forward flow connection state and a reverse flow connection state; a fourth coolant passage; a fifth coolant passage; and a shutoff valve configured to open/shut off the fifth coolant passage. The radiator is disposed at a location at which coolant flowing from a second end of the first coolant passage into a fourth end of the second coolant passage is not cooled in the reverse flow connection state, and coolant flowing out from the second end of the first coolant passage and the fourth end of the second coolant passage is cooled in the forward flow connection state.

公开(公告)号：US10890102B2

公开(公告)日：2021-01-12

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 ,  F01P3/04 ,  F02F1/10 ,  F01P3/02 ,  F01P7/14

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：US10557400B2

公开(公告)日：2020-02-11

申请号：US15936114

申请日：2018-03-26

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshio Hasegawa ,  Tomohiro Shinagawa ,  Yuji Miyoshi

IPC: F01P3/02 ,  F01P7/16 ,  F01P5/10 ,  F02F1/36 ,  F02F1/10 ,  F01P7/14

Abstract: The cooling apparatus of the engine sets the first shut-off valve to the closed position, sets the second shut-off valve to the open position, and performs the opposite flow connection operation to supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and to the heat exchanger from the cylinder head water block when the engine temperature is lower than the completely-warmed temperature, and the cooling water is requested to be supplied to the heat exchanger.

公开(公告)号：US20180297445A1

公开(公告)日：2018-10-18

申请号：US15900824

申请日：2018-02-21

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoichi ONISHI ,  Keisuke Shibata ,  Yoshikazu Shinpo ,  Kei Okamoto ,  Tomohiro Shinagawa ,  Hidefumi Aikawa ,  Masaki Suzuki ,  Nobuharu Kakehashi

IPC: B60H1/00 ,  B60H3/02 ,  B60H1/12

Abstract: A vehicle heat management device includes a first circulator section, a second circulator section, and a flow rate change section. The first circulator section is provided at a first flow path of a first circulation path, and circulates a first heat exchange medium in the first circulation path, the first flow path passing a first heat exchanger, a second flow path passing a first expansion valve and a second heat exchanger, a third flow path passing a second expansion valve and a heat absorption section. The second circulator section circulates a second heat exchange medium in a second circulation path configured by a fourth flow path passing a heat generating body, a fifth flow path passing a radiator, and a sixth flow path passing a heat dissipating section and the first heat exchanger. The flow rate change section increases a flow rate of the second heat exchange medium.

公开(公告)号：US11721819B2

公开(公告)日：2023-08-08

申请号：US17659771

申请日：2022-04-19

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hiroki Okabe ,  Tomohiro Shinagawa ,  Yoshihiro Shinozaki

IPC: H01M8/04 ,  H01M8/04537 ,  H01M8/04082 ,  H01M8/04791

CPC classification number: H01M8/04552 ,  H01M8/04201 ,  H01M8/04798 ,  H01M2250/20

Abstract: A fuel cell system for air vehicles, wherein the fuel cell system comprises: a fuel cell, a fuel gas system for supplying fuel gas to the fuel cell, a potential sensor, and a controller; wherein the fuel gas system comprises a fuel gas supplier; wherein the controller determines whether or not a potential of the fuel cell measured by the potential sensor, is a reversal potential; and wherein, when the controller determines that the potential of the fuel cell is a reversal potential, the controller increases a fuel gas supply from the fuel gas supplier to the fuel cell.

公开(公告)号：US10428753B2

公开(公告)日：2019-10-01

申请号：US15514392

申请日：2015-09-18

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Atsushi Fukuda ,  Tomohiro Shinagawa

IPC: F02D41/08 ,  F02D31/00 ,  B60H1/32 ,  F02D41/16

Abstract: An ECU avoids engine stall by putting a compressor into a stationary state in a case where the rotation speed of a crankshaft is equal to or less than a predetermined speed during an idle operation of an internal combustion engine. During the idle operation, the ECU calculates a total load torque applied to the crankshaft by the compressor and an alternator. The ECU calculates the maximum torque of the internal combustion engine during the idle operation based on a target speed during the idle operation. Then, the ECU raises the predetermined speed in a case where the value obtained by subtracting the load torque from the maximum torque is equal to or less than a predetermined value.

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.