-
公开(公告)号：US20200047605A1
公开(公告)日：2020-02-13
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
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：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.
-
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.
-
公开(公告)号：US20240337420A1
公开(公告)日：2024-10-10
申请号：US18745661
申请日：2024-06-17
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masanari NUMATA , Yu OFUNE , Satoshi ITO , Naoki KATO , Nobuharu KAKEHASHI , Tatsuhito MATSUMOTO , Kaoru OHTSUKA , Yasuhiro OI , Hidefumi AIKAWA , Ryo MICHIKAWAUCHI
Abstract: A heat pump system includes a heat pump cycle, a heating unit, a low-temperature side heat medium circuit, and a control unit. The heat pump cycle includes a compressor, a condenser, and an evaporator. The heating unit heats ventilation air with heat released form refrigerant in the condenser. The low-temperature side heat medium circuit circulates a low-temperature side heat medium such that the refrigerant in the evaporator absorbs heat of the low-temperature side heat medium, and includes a heat source device and a heat amount adjustment unit. The control unit causes an amount of heat transfer in the heating unit for heating the ventilation air to approach a predetermined target value via adjustment in temperature of the low-temperature side heat medium by controlling a rotation speed of the compressor and an operation of at least one of the heat source device and the heat amount adjustment unit.
-
公开(公告)号：US20190009644A1
公开(公告)日：2019-01-10
申请号：US16027604
申请日：2018-07-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA , Yoichi OGURA , Masatoshi YANO , Yuji MIYOSHI , Yu OFUNE
Abstract: A control apparatus of a heat exchanging system according to the invention executes a control for activating a connection system to connect an engine water passage to a heater water passage and a control for increasing an engine pump duty ratio, and then executes a control for decreasing a heater pump duty ratio when the control for decreasing the heater pump duty ratio and the control for increasing the engine pump duty ratio are requested to be executed in order to control a core flow rate to a requested core flow rate and an engine flow rate to a requested engine flow rate after the engine water passage is connected to the heater water passage by the connection system.
-
Patent Agency Ranking
公开(公告)号：US20190009643A1
公开(公告)日：2019-01-10
申请号：US16027586
申请日：2018-07-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Masatoshi YANO , Hidefumi AIKAWA , Yoichi OGURA , Yuji MIYOSHI , Yu OFUNE
Abstract: 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.
-
公开(公告)号：US20190009642A1
公开(公告)日：2019-01-10
申请号：US16027569
申请日：2018-07-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA , Yoichi OGURA , Yuji MIYOSHI , Masatoshi YANO , Yu OFUNE
Abstract: 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.
-
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.
-
公开(公告)号：US20190291710A1
公开(公告)日：2019-09-26
申请号：US16283825
申请日：2019-02-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoichi OGURA , Kunihiko HAYASHI , Yuji MIYOSHI , Masatoshi YANO , Yu OFUNE
IPC: B60W20/00 , B60K11/02 , B60K6/40 , B60L58/26 , B60L58/27 , B60K6/28 , B60K6/26 , B60K6/24 , F01P3/20
Abstract: A temperature control apparatus of a vehicle according to the invention stops activating a heat pump and supplies heat exchanging liquid from an engine passage to a battery passage when a warming of the battery is requested and a temperature of the heat exchanging liquid flowing out of the engine passage is equal to or lower than a permitted upper limit temperature. On the other hand, the apparatus activates the heat pump to cool the heat exchanging liquid and supplies the cooled heat exchanging liquid from the engine passage to the battery passage when the warming of the battery is requested and the temperature of the heat exchanging liquid flowing out of the engine passage is higher than the permitted upper limit temperature.
-
公开(公告)号：US20190009646A1
公开(公告)日：2019-01-10
申请号：US16030587
申请日：2018-07-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hidefumi AIKAWA , Yoichi OGURA , Masatoshi YANO , Yuji MIYOSHI , Yu OFUNE
IPC: B60H1/06
Abstract: 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.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.02 seconds)
