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公开(公告)号：US20190299770A1
公开(公告)日：2019-10-03
申请号：US16270525
申请日：2019-02-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuji MIYOSHI , Takuya HIRAI , Tomohiro SHINAGAWA , Hiroyuki SUGIHARA
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).
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公开(公告)号：US20220089146A1
公开(公告)日：2022-03-24
申请号：US17482463
申请日：2021-09-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Daiki YOKOYAMA , Hiroya CHIBA , Yoshiyuki KAGEURA , Masanori SHIMADA , Yoshihiro SAKAYANAGI , Hiroyuki SUGIHARA , Yuji MIYOSHI
Abstract: The control device of a hybrid vehicle for controlling a hybrid vehicle includes a position estimating part configured to estimate a position of the hybrid vehicle using the vehicle position detection device, a reliability calculating part configured to calculate a reliability of position information of the hybrid vehicle, and a power output part configured to control the internal combustion engine and the electric motor to output power for driving use. The power output part is configured to reduce the output of the internal combustion engine when the reliability is equal to or less than a reference value, compared to when the reliability is higher than the reference value.
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公开(公告)号：US20180306069A1
公开(公告)日：2018-10-25
申请号：US15914580
申请日：2018-03-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Noriyasu ADACHI , Keisuke SASAKI , Shigehiro SUGIHIRA , Takayoshi KAWAI , Shinji SADAKANE , Hiroyuki SUGIHARA , Kaoru OHTSUKA
IPC: F01L1/047
Abstract: Provided is a control device for an internal combustion engine equipped with a cam switching device including a cam groove provided on the outer peripheral surface of a camshaft and an electromagnetic solenoid type actuator capable of protruding, toward the camshaft, an engagement pin that is engageable with the cam groove. The control device is configured, in causing the cam switching device to perform a cam switching operation, to perform energization of the actuator such that the engagement pin is seated on a forward outer peripheral surface, and to more lower, when an electric current (coil current) flowing through the actuator as a result of the energization is greater, an average electric voltage per unit time applied to the actuator in protruding the engagement pin toward the cam groove from the forward outer peripheral surface.
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公开(公告)号：US20210332740A1
公开(公告)日：2021-10-28
申请号：US17179412
申请日：2021-02-19
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroyuki SUGIHARA
Abstract: A cooling system of a hybrid vehicle includes a radiator, an openable and closable first shutter, an openable and closable second shutter, and a control device. The radiator is placed forward of an internal combustion engine and a heat generation device configured to generate heat along with operation of the drive motor, and the radiator communicates with the heat generation device and the internal combustion engine such that a coolant circulates through the internal combustion engine and the heat generation device. The first shutter extends from a front end of an undercover so as to cross between the radiator, and the heat generation device and the internal combustion engine. The second shutter extends between a front end part of the undercover and a lower part of the radiator. The control device controls opening and closing of the first shutter and the second shutter.
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公开(公告)号：US20180230869A1
公开(公告)日：2018-08-16
申请号：US15888563
申请日：2018-02-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Shigehiro SUGIHIRA , Noriyasu ADACHI , Keisuke SASAKI , Takayoshi KAWAI , Kaoru OTSUKA , Shinji SADAKANE , Hiroyuki SUGIHARA
Abstract: In a system that selects a large-cam as a driving cam at a time of a start of an engine, when an engine stop request is output, it is determined whether there is a small-cam cylinder for which a small-cam is selected as the driving cam. In a case where it is determined that there is a small-cam cylinder, a switching command for switching the driving cam from the small-cam to the large-cam is output. When an engine start request is output, the above determination is performed again. In a case where it is determined that there is a small-cam cylinder, the switching command is output to all solenoid actuators again. In addition, the drive of the fuel injector is suspended until the switching operation of the driving cam is completed for all cylinders.
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Patent Agency Ranking
公开(公告)号：US20180202329A1
公开(公告)日：2018-07-19
申请号：US15810306
申请日：2017-11-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kaoru OHTSUKA , Hiroyuki SUGIHARA , Shinji SADAKANE , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Takayoshi KAWAI
CPC classification number: F01L13/0036 , F01L1/047 , F01L2013/0052 , F01L2013/101 , F02B75/02 , F02B75/20 , F02B2075/027 , F02B2075/1816 , F02D13/0226 , F02D13/08 , F02D41/042 , F02D2041/001 , Y02T10/18
Abstract: When a stop request to the engine is issued, it is determined whether or not all of the drive cams are large cams. When it is determined that at least one of the small cams is included in the drive cams, the engine is continued to drive for a while and a switch control for switching the drive cams from the small cams to the large cams is executed within the duration. A self-holding type solenoid is used to switch between the small cams and the large cams. In the switch control, a permission to stop the engine is output at a timing when the “pin protrudable section” of the final cylinder #2 has elapsed.
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公开(公告)号：US20200088090A1
公开(公告)日：2020-03-19
申请号：US16505832
申请日：2019-07-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Hiroyuki SUGIHARA , Takuya HIRAI
Abstract: A cooling system for a hybrid vehicle that cools cooling medium for an air conditioner without reducing a driving performance, irrespective of a running condition. A detector detects data relating to operating conditions of a high-current device cooling circuit, a supercharger cooling circuit, a high-current device, an engine, a supercharger, and the hybrid vehicle. A controller selects one of a first water passage and a second water passage by manipulating a control valve based on the data collected by the detector, in such a manner as to maximize an amount of heat transferred from the cooling medium to high-current device cooling water or supercharger cooling water.
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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.
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公开(公告)号：US20180298807A1
公开(公告)日：2018-10-18
申请号：US15937534
申请日：2018-03-27
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： Hiroyuki SUGIHARA , Yuji MIYOSHI
Abstract: The cooling apparatus of the internal combustion engine according to the invention executes an incompletely-warmed state control for supplying the cooling water to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and supplying the cooling water to the cylinder head water passage from the cylinder block water passage when the temperature of the cooling water is lower than the engine completely-warmed water temperature at which the engine is estimated to be warmed completely.
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公开(公告)号：US20180274393A1
公开(公告)日：2018-09-27
申请号：US15877437
申请日：2018-01-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takayoshi KAWAI , Noriyasu ADACHI , Shigehiro SUGIHIRA , Keisuke SASAKI , Kaoru OTSUKA , Shinji SADAKANE , Hiroyuki SUGIHARA
CPC classification number: F01L1/047 , F01L1/08 , F01L13/0015 , F01L13/0036 , F01L2013/0052 , F01L2800/01 , F01L2820/04 , F01L2820/041 , F01L2820/042 , F02D41/00 , F02D41/0002 , F02D41/062 , F02D2041/001 , F02D2041/0092 , F16H53/025
Abstract: At crank angle CA10 at which the switch request of the drive cam was issued, the ejection operations of the pins at all the solenoid actuators started simultaneously. The ejected pins are seated on the cam carriers at erank angle CA12. The pin seated on the cam carrier moves along the grooves in accordance with the rotation of the cam carrier. The earliest finish timing of the switch operation of the drive cam is at crank angle CA13 (#4 cylinder). At the crank angle CA13, drive of the fuel injector and the ignition device in each cylinder is permitted.
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