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公开(公告)号：US20210332825A1
公开(公告)日：2021-10-28
申请号：US17214117
申请日：2021-03-26
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shoichi AKIYAMA , Noboru TAKAGI , Daichi YAMAZAKI , Masaaki YAMAGUCHI
IPC: F04D27/00 , F04D29/40 , F04D29/053
Abstract: A controller includes: a control unit configured to calculate a control command value of an opening degree of a solenoid valve to control an opening degree of the solenoid valve; and an acquisition unit configured to acquire an estimated amount and a target amount of a working fluid in a labyrinth chamber, and a rotation speed of a drive shaft. The control unit calculates a final control command value based on a feedback control command value and a feedforward control command value, and controls the solenoid valve, the feedback control command value being calculated based on deviation between the estimated amount and the target amount, the feedforward control command value being used to maintain a rotation speed of a fan constant based on the estimated amount and the rotation speed of the drive shaft.
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公开(公告)号：US20200072100A1
公开(公告)日：2020-03-05
申请号：US16467292
申请日：2017-12-22
Inventor： Takayuki HOSOGI , Hisayuki ITO , Noboru TAKAGI , Kazuyoshi SHIMATANI , Takahiko AOYAGI , Masahiro YOSHIDA , Yoshinobu UCHIYAMA , Toshiki SATO , Hirotaka WATANABE
Abstract: A control device for an onboard engine is configured to control the oil discharge pressure of an oil pump and execute, when determining that there may be an abnormality in the control of the oil discharge pressure, a change process that increases the target discharge pressure to a value that is greater than that before it is determined that there may be an abnormality in the control. When a discharge pressure sensor value in a situation in which the discharge pressure is being controlled based on the target discharge pressure increased through execution of the change process does not become greater than or equal to a discharge pressure threshold, the control device sets an upper limit for the engine rotation speed and increases the upper limit as the discharge pressure sensor value increases.
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公开(公告)号：US20170218879A1
公开(公告)日：2017-08-03
申请号：US15408825
申请日：2017-01-18
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Rihito KANEKO , Noboru TAKAGI , Isao TAKAGI , Takashi MATSUTANI , Naoto HISAMINATO , Mitsuru YAMAGUCHI , Hirokazu ANDO
CPC classification number: F01P7/16 , F01P2007/146 , F01P2037/02 , F02B75/22
Abstract: An engine cooling apparatus includes a mechanical water pump having a suction hole and N discharge holes (N is an integer not less than two), N water jackets that are arranged in an engine and correspond to the N discharge holes, N joint passages, each of which joins one of the N discharge holes to the associated water jacket, a return passage that returns coolant to the suction hole after the coolant has passed through the N water jackets and has merged in a merging portion, a coolant stopping mechanism that blocks return flow of coolant through the return passage, and N communication passages each of which allows the corresponding one of the N joint passages to communicate with the suction hole while bypassing the N water jackets and the coolant stopping mechanism.
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公开(公告)号：US20150377375A1
公开(公告)日：2015-12-31
申请号：US14750221
申请日：2015-06-25
Inventor： Noboru TAKAGI , Satoru ONOZAWA , Yoshinobu UCHIYAMA
CPC classification number: F16K29/00 , F01L1/3442 , F01L2001/34426 , F01L2001/3443 , F01L2001/34436 , F01L2001/34443 , F16K31/0613
Abstract: A control system includes a hydraulic pressure control valve and an electronic control unit. The hydraulic pressure control valve includes a spool configured to be moved inside a sleeve. The hydraulic pressure control valve is configured to control a hydraulic pressure by moving the spool between a first end and a second end of the sleeve. The hydraulic pressure control valve includes a stopper configured to transmit vibration to the sleeve. The electronic control unit is configured to control the spool to vibrate in the first end or the second end when foreign matter is stuck in the hydraulic pressure control valve, such that the spool or a member that moves the spool repeatedly hits the stopper.
Abstract translation: 控制系统包括液压控制阀和电子控制单元。 液压控制阀包括构造成在套筒内移动的卷轴。 液压控制阀构造成通过在套筒的第一端和第二端之间移动阀芯来控制液压。 液压控制阀包括用于将振动传递到套筒的止动件。 电子控制单元被配置为当异物粘附在液压控制阀中时，控制卷轴在第一端或第二端中振动，使得卷轴或使卷轴移动的部件反复撞击止动件。
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公开(公告)号：US20190078496A1
公开(公告)日：2019-03-14
申请号：US16124779
申请日：2018-09-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshihiro FURUYA , Rihito KANEKO , Noboru TAKAGI , Masaaki YAMAGUCHI , Hirokazu ANDO , Mitsuru YAMAGUCHI
Abstract: An internal combustion engine includes a water jacket, a cooling water pump as a cooling liquid pump, and an adjusting valve. A control device for the internal combustion engine executes the water stoppage control of increasing the temperature of the engine body by limiting the discharge of the cooling liquid from the water jacket by the adjusting valve, and an automatic stop and automatic startup control of automatically stopping and automatically starting the internal combustion engine. The control device increases the fuel injection amount for automatically starting the internal combustion engine in a case where the water stoppage control is being executed when the internal combustion engine is automatically stopped as compared with a case where the water stoppage control is not being executed when the internal combustion engine is automatically stopped.
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Patent Agency Ranking
公开(公告)号：US20170074154A1
公开(公告)日：2017-03-16
申请号：US15264309
申请日：2016-09-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Rihito KANEKO , Noboru TAKAGI , lsao TAKAGI , Naoya KAWAMOTO , Kenji KIMURA , Shinji YUMI
CPC classification number: F01P11/18 , F01P7/14 , F01P2007/146
Abstract: An engine cooling system includes a coolant circuit, a multi-way valve, a relief route and a relief valve. The coolant circuit includes a first route and a second route into which the coolant circuit is branched off at a branched position. The first route passes through a radiator. The multi-way valve is provided at the branched position. The relief route sets a relief source to a portion downstream of a pump and upstream of the multi-way valve in the coolant circuit, sets a relief destination to a portion downstream of the radiator in the first route, and causes coolant to flow from the relief source to the relief destination so as to bypass the multi-way valve. The relief valve interrupts circulation of coolant through the relief route when the relief valve is closed, and permits circulation of coolant through the relief route when the relief valve is open.
Abstract translation: 发动机冷却系统包括冷却剂回路，多通阀，溢流路径和溢流阀。 冷却剂回路包括第一路线和第二路径，冷却剂回路在分支位置分支。 第一条路线通过散热器。 多通阀设置在分支位置。 救济路径将释放源设置在泵的下游部分和冷却剂回路中的多通阀的上游，将救生目的地设置在第一路径中的散热器下游的部分，并使冷却剂从 释放源到救济目的地，以便绕过多路阀。 当安全阀关闭时，安全阀中断冷却剂通过卸载路径的循环，并且在泄压阀打开时允许冷却剂循环通过泄放路径。
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7.发明公开公开(公告)号：US20230250773A1
公开(公告)日：2023-08-10
申请号：US18165329
申请日：2023-02-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shoichi AKIYAMA , Noboru TAKAGI , Rihito KANEKO , Hirokazu TANAKA
CPC classification number: F02D41/068 , F02D41/38 , F02D41/32 , F02D2200/021 , F02D2041/389
Abstract: Control circuitry executes an increase correction control for fuel when an internal combustion engine is started. A determination process determines whether warm-up in a cylinder is completed. A direct injection mode injects fuel only from a direct injection valve when it is determined that the warm-up in the cylinder is completed. A reduction process sets an increase correction amount of fuel obtained through the increase correction control when executing the direct injection mode to be less than an increase correction amount obtained prior to the execution of the direct injection mode.
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公开(公告)号：US20200158254A1
公开(公告)日：2020-05-21
申请号：US16660146
申请日：2019-10-22
Inventor： Noboru TAKAGI , Hirokazu KATO , Rihito KANEKO , Naoto HISAMINATO , Hirokazu ANDO , Masaaki YAMAGUCHI , Hirotaka WATANABE , Takahiko AOYAGI , Masahiro YOSHIDA , Koji NUNAMI , Naoto YUMISASHI , Masafumi YOSHIDA
IPC: F16K31/163 , F16K17/36 , F02F1/14 , F01P7/14
Abstract: A cooling apparatus includes a circulation circuit, a pump, a flow rate adjustment valve, and a controller. The flow rate adjustment valve includes a valve member that rotates to change an open degree of the flow rate adjustment valve and a stopper that moves between a restriction position and a retraction position. The controller is configured to execute, when maintaining the open degree of the flow rate adjustment, a preparatory process of moving the stopper to the restriction position after arranging the stopper at the retraction position and arranging the valve member further in the valve-closing direction than the stopper through control of the pump discharge amount.
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公开(公告)号：US20200158000A1
公开(公告)日：2020-05-21
申请号：US16685274
申请日：2019-11-15
Inventor： Masafumi YOSHIDA , Naoto YUMISASHI , Koji NUNAMI , Masahiro YOSHIDA , Hirotaka WATANABE , Takahiko AOYAGI , Noboru TAKAGI , Hirokazu KATO , Rihito KANEKO , Masaaki YAMAGUCHI
Abstract: A flow passage device includes a circulation flow passage, a swing valve provided in the circulation flow passage, an energizing part, and a lock mechanism including a lock pin. The lock pin is configured so as to hinder the swing valve from opening, and to allow the swing valve to open. The swing valve is configured so as to rotate from a first valve position to a second valve position. The lock mechanism is configured so as to set a locked state and to set an unlocked state. The lock pin is configured so as to protrude as being energized by pressure of the fluid on an upstream side of the swing valve, and to retract as being energized by pressure of the fluid on a downstream side of the swing valve.
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公开(公告)号：US20170037769A1
公开(公告)日：2017-02-09
申请号：US15227670
申请日：2016-08-03
Inventor： Masazumi YOSHIDA , Yuta HIRATSUKA , Kenichi KOMURO , Ryusuke SASAKI , Noboru TAKAGI
Abstract: An engine cooling device includes: a water pump; a radiator; a first cooling water channel going through the radiator; a second cooling water channel not going through the radiator; a solenoid valve provided in the second cooling water channel; and a control unit. The control unit moves, at a time of closing the solenoid valve, a valve body in a valve closing direction while the cooling water is passing at a decreased flow rate so as to close the solenoid valve to cut off passage of the cooling water in the second cooling water channel.
Abstract translation: 发动机冷却装置包括：水泵; 散热器 通过散热器的第一个冷却水通道; 第二个冷却水通道不通过散热器; 设置在第二冷却水通道中的电磁阀; 和控制单元。 控制单元在关闭电磁阀时移动阀体的关闭方向，同时冷却水以降低的流量通过，以关闭电磁阀以切断冷却水的通过 第二冷却水通道。
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