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公开(公告)号：US20240239158A1
公开(公告)日：2024-07-18
申请号：US18413746
申请日：2024-01-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Ryo MICHIKAWAUCHI , Hidefumi AIKAWA , Masanari NUMATA , Yu OFUNE , Satoshi ITO , Naoki KATO , Tatsuhito MATSUMOTO
CPC classification number: B60H1/32284 , B60H1/00278 , B60H2001/00307 , B60H1/323 , B60H2001/3255 , B60H2001/3285
Abstract: A system includes a refrigeration circuit, low-temperature circuit and controller. The refrigeration circuit includes: a tiller for absorbing heat from a colling water to a refrigerant; and a condenser for releasing heat from the refrigerant to an outside, and realizes a refrigeration cycle by circulating the refrigerant therethrough. The low-temperature circuit includes the tiller and an external heat exchanger for absorbing heat from an outside to the first heat medium, and circulate the cooling water therethrough. The controller can change a heat absorption amount of the refrigerant at the tiller. The controller controls the device so that a change in the heat absorption amount of the refrigerant at the first heat exchanger in accordance with a change in a temperature of the first heat medium is reduced, if the temperature of the cooling water flowing through the first heat exchanger changes by a reference value or more.
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公开(公告)号：US20210094390A1
公开(公告)日：2021-04-01
申请号：US17017817
申请日：2020-09-11
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA
Abstract: A cooling system mounted in a vehicle includes a radiator exchanging heat with the outside air; first and second flow paths; and a control device. The first path is configured so that when the first pump is operating, a heat medium circulates through the radiator and a first heat exchanger exchanging heat with the inverter. The second flow path is connected to the radiator in parallel with the first flow path, and is configured so that when the second pump is operating, the heat medium circulates through the radiator and a second heat exchanger exchanging heat with the battery. The control device controls the outputs of the first and second pumps so that when making both of the outputs rise or fall, the flow rate of the heat medium flowing through the first flow path becomes temporarily larger than the target flow rate.
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公开(公告)号：US20200290426A1
公开(公告)日：2020-09-17
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
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.
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公开(公告)号：US20200009941A1
公开(公告)日：2020-01-09
申请号：US16373724
申请日：2019-04-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA , Kei OKAMOTO , Minoru OHMIKAWA
Abstract: A heating apparatus of the invention executes a first heating control for heating a heater core by a heat generation device when a process of heating the heater core is requested while an engine operation is stopped. The heating apparatus executes a second heating control for heating the cooling water which cooled an internal combustion engine, by the heat generation device and supplying the heated cooling water to the heater core when a heater core temperature is not increased to a requested temperature only by the heat generation device. The heating apparatus executes a third heating control for stopping the engine operation, heating the cooling water which cooled the internal combustion engine, by the heat generation device, and supplying the heated cooling water to the heater core when an engine temperature becomes equal to or higher than a predetermined temperature while the second heating control is executed.
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公开(公告)号：US20190329644A1
公开(公告)日：2019-10-31
申请号：US16361210
申请日：2019-03-22
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoichi OGURA , Kunihiko HAYASHI , Masatoshi YANO , Yuji MIYOSHI , Takuya HIRAI , Tomohiro SHINAGAWA , Ryo MICHIKAWAUCHI , Hidefumi AIKAWA , Yu OFUNE
Abstract: A cooling apparatus of a vehicle driving system for driving a vehicle according to the invention activates a heat pump to cool a hybrid system by cooling medium and flows an engine cooling water in an engine water circulation passage through a condenser to cool the cooling medium by the engine cooling water at the condenser when an engine water circulation condition is satisfied. The engine water circulation condition is a condition that a heat pump activation condition is satisfied, and an engine cooling condition is not satisfied. The heat pump activation condition is a condition that a process of cooling the hybrid system by the cooling medium of the heat pump is requested. The engine cooling condition is a condition that a process of cooling an internal combustion engine by the engine cooling water is requested.
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Patent Agency Ranking
公开(公告)号：US20170253104A1
公开(公告)日：2017-09-07
申请号：US15504785
申请日：2015-08-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takashi AMANO , Hidefumi AIKAWA , Kojiro HAYAKAWA
IPC: B60H1/00
CPC classification number: B60H1/00885 , B60H1/00314 , B60H1/00321 , B60H1/00328 , B60H1/00421 , B60H1/00428 , B60H1/00642 , B60H1/00814 , B60H1/00878 , B60H1/00899 , B60H1/025 , B60H2001/00114 , B60H2001/00928 , B60L2240/10 , B60L2240/36 , B60L2240/445 , B60L2250/26 , F01P3/18 , F01P3/20 , F01P5/12 , F01P7/16
Abstract: A heat management system for vehicles comprises: a first circulation circuit which cools an engine body of an internal combustion engine and includes a first pump for pressure-feeding a refrigerant; a second circulation circuit including an exhaust heat recovery apparatus for recovering exhaust heat from the internal combustion engine, a heater core used for air-conditioning of a vehicle, and a second pump for pressure-feeding the refrigerant; communication passages allowing the first circulation circuit to communicate with the second circulation circuit; and an on-off valve provided in the first communication passage, and switching between the communication between the first circulation circuit and the second circulation circuit and the preventing of communication therebetween, wherein the on-off valve is controlled such that the refrigerant temperature of the first circulation circuit is higher than that of the second circulation circuit.
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公开(公告)号：US20160003177A1
公开(公告)日：2016-01-07
申请号：US14767383
申请日：2013-02-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA
Abstract: A control apparatus is applied to an internal combustion engine that is capable of implementing reduced-cylinder operation and all-cylinder operation. When the internal combustion engine is stopped during implementation of reduced-cylinder operation, and then the internal combustion engine is restarted in reduced-cylinder operation with the same cylinders as idling cylinders, the initial crank angle when cranking starts is controlled so that the position of the piston of at least one among the idling cylinders is in the vicinity of its top dead center.
Abstract translation: 将控制装置应用于能够实现减缸操作和全缸操作的内燃机。 当内燃机在减缸操作的实施期间停止时，然后内燃机在与空转缸相同的气缸的减缸运行中重新起动时，控制起动启动时的初始曲柄角， 空转缸中的至少一个的活塞在其上止点附近。
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公开(公告)号：US20240239157A1
公开(公告)日：2024-07-18
申请号：US18407988
申请日：2024-01-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , DENSO CORPORATION
Inventor： Ryo MICHIKAWAUCHI , Hidefumi AIKAWA , Masanari NUMATA , Yu OFUNE , Satoshi ITO , Naoki KATO , Tatsuhito MATSUMOTO
CPC classification number: B60H1/3228 , B60H1/00899
Abstract: A system includes: a low-temperature circuit having a chiller and in which a cooling water circulates therethrough; a heat dissipation unit for dissipating heat to an air; a refrigeration circuit in which a refrigerant circulates and for absorbing heat from the cooling water to the refrigerant at the chiller and dissipating heat from the refrigerant at the heat dissipation unit; a ratio adjusting device for adjusting a heat dissipation unit passing ratio; and a controller for controlling an heat transfer amount adjusting apparatus capable of adjusting the heat transfer amount in the refrigeration circuit and the ratio adjusting device. If it is predicted that the temperature of the cooling water decreases, the controller controls the apparatus so that the heat transfer amount is increased and controls the ratio adjusting device so that the ratio is decreased, before the temperature of the cooling water flowing through the chiller decreases.
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公开(公告)号：US20230070430A1
公开(公告)日：2023-03-09
申请号：US17847519
申请日：2022-06-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryo MICHIKAWAUCHI , Hidefumi AIKAWA , Tatsuhito MATSUMOTO
IPC: B60H1/00
Abstract: A refrigerant circuit system includes a compressor configured to compress refrigerant, a condenser configured to cause the compressed refrigerant to radiate heat, first and second evaporators each configured to decompress and expand the heat-radiated refrigerant by regulating a valve opening degree, first and second evaporators provided in parallel and configured to cause the refrigerant, respectively decompressed and expanded by the first and second expansion valves, to absorb heat, and a controller configured to, based on first information related to a temperature of a first temperature regulated object, regulated by the first evaporator, second information related to a temperature of a second temperature regulated object, regulated by the second evaporator, and third information related to a degree of superheat of the refrigerant at an inlet of the compressor, control the valve opening degrees of the first and second expansion valves and a compression ratio of the refrigerant by the compressor.
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公开(公告)号：US20210094443A1
公开(公告)日：2021-04-01
申请号：US17022762
申请日：2020-09-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA
Abstract: A cooling system includes a shared path; a first path connected to the shared path and having a first pump and a first heat exchanger exchanging heat with an inverter; a second path connected to the shared path in parallel with the first path and having a second pump and a second heat exchanger exchanging heat with a battery. The first and second paths are configured to be able to switch a flow state between a first state where the heat media flow through the shared path, and a second state where one of the heat media does not flow through the shared path. The control device controls the outputs of the pumps so that when switching the flow state between the first and second states, flow rate of the heat medium flowing through the first path becomes temporarily larger than the target flow rate.
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