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公开(公告)号：US11499510B2
公开(公告)日：2022-11-15
申请号：US16929110
申请日：2020-07-15
发明人： Koji Ichikawa , Hisayuki Itoh , Hirokazu Kato , Masaaki Yamaguchi
摘要： In an engine system including an engine, and an exhaust gas recirculation device including a communicating pipe that communicates an exhaust pipe of the engine with an intake pipe, and a valve provided in the communicating pipe, and an electronic control unit, and its control method, the electronic control unit estimates the pressure in the intake pipe as an estimated intake pressure, and performs a jamming diagnosis to determine whether foreign matter is stuck in the valve, by comparing an intake pressure difference between a detected intake pressure and the estimated intake pressure with a threshold value, when a diagnosis condition including an opening change condition that the target opening becomes equal to or larger than a first predetermined opening and then becomes equal to or smaller than a second predetermined opening that is smaller than the first predetermined opening is satisfied.
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公开(公告)号：US11365701B2
公开(公告)日：2022-06-21
申请号：US17356660
申请日：2021-06-24
发明人： Masanao Idogawa , Takahiro Uchida , Koji Ichikawa , Hiroaki Mizoguchi , Takuya Okubo , Sohichi Imai , Hirokazu Andoh
摘要： An engine device includes an engine including an in-cylinder injection valve and a spark plug, an exhaust gas control device, and a controller. The controller is configured to perform a last fuel injection from the in-cylinder injection valve in an expansion stroke and to set a fuel injection amount for the last fuel injection in expansion stroke injection driving, based on a coolant start temperature, post-start time, and volumetric efficiency. The expansion stroke injection driving is a control that is performed by performing the ignition by the spark plug in synchronization with the fuel injection in the expansion stroke.
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公开(公告)号：US11035324B2
公开(公告)日：2021-06-15
申请号：US16996902
申请日：2020-08-19
发明人： Hisayuki Itoh , Koji Ichikawa , Masaaki Yamaguchi , Hirokazu Kato
摘要： A vehicle including: an engine; an exhaust gas recirculation device including a communication pipe by which an exhaust pipe of the engine and an intake pipe of the engine communicating, and a valve that is provided in the communication pipe; and a control device configured to control the engine, to control the valve based on a target opening of the valve, to perform automatic stopping of the engine based on satisfaction of an automatic stopping condition, and to perform automatic starting of the engine based on satisfaction of an automatic starting condition. The control device is configured to prohibit automatic stopping of the engine when it is determined that foreign matter is caught in the valve through catching diagnosis which is diagnosis of whether foreign matter is caught in the valve.
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公开(公告)号：US11959449B2
公开(公告)日：2024-04-16
申请号：US18069900
申请日：2022-12-21
CPC分类号： F02N11/0859 , F02D41/062 , F02D41/3017 , F02N11/0851 , F02N2200/022 , F02N2200/041
摘要： A control device for a hybrid electric vehicle includes an electronic control unit. The electronic control unit is configured to perform a start-up control of shifting the connection and disconnection clutch to a coupled state at the time of starting the internal combustion engine to rotate the internal combustion engine by the driving torque of the electric motor, and starting the first fuel injection mode using the direct injection injector. The electronic control unit is configured to switch from the first fuel injection mode to a second fuel injection mode for using the port injector prior to an end of the start-up control when the number of times of combustion cycles of the internal combustion engine with the first fuel injection mode reaches a predetermined first target number of times.
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公开(公告)号：US11761373B1
公开(公告)日：2023-09-19
申请号：US18183333
申请日：2023-03-14
发明人： Masaya Kubo , Koji Ichikawa , Takahiro Yoshida , Takahiro Nishigaki , Noriaki Kumagai , Sohichi Imai , Masahiro Noguchi
IPC分类号： F01P7/16
CPC分类号： F01P7/164 , F01P2025/36 , F01P2037/00 , F01P2050/24
摘要： A cooling device is employed in a vehicle including an internal combustion engine provided with a forced-induction device and an intercooler. The cooling device includes a circulation circuit configured to circulate coolant supplied to the intercooler, an electric pump configured to operate to circulate the coolant in the circulation circuit, and processing circuitry configured to control a discharge amount of the coolant of the pump. The processing circuitry is configured to execute a control amount deriving process of deriving a control amount of the pump based on a requested flow rate and a coolant temperature, and an operation process of causing the pump to operate based on the control amount when the requested flow rate is larger than 0.
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公开(公告)号：US10704494B2
公开(公告)日：2020-07-07
申请号：US16021675
申请日：2018-06-28
发明人： Toshio Murata , Koji Ichikawa
摘要： A heat recovery structure includes a pipe portion, a heat exchanging portion and an actuator. The pipe portion is inclined such that a side face of the pipe portion faces a diagonally lower side, and is configured such that exhaust gas from an engine circulates through the pipe portion. The heat exchanging portion is configured to communicate with the pipe portion and to perform heat-exchange between a heat medium and the exhaust gas flowing into the heat exchanging portion from the pipe portion such that the exhaust gas thus subjected to the heat-exchange with the heat medium flows out to the pipe portion. The actuator is configured to operate a selector valve configured to switch between a state where the exhaust gas circulates through the pipe portion and a state where the exhaust gas circulates through the heat exchanging portion.
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公开(公告)号：US20190301386A1
公开(公告)日：2019-10-03
申请号：US16361916
申请日：2019-03-22
发明人： Toshio Murata , Yuuichi Kaido , Keiichi Koshin , Masahiro Shirai , Koji Ichikawa
摘要： An exhaust heat recovery structure includes a first pipe through which exhaust gas from an engine flows; a second pipe that branches from the first pipe, the second pipe including a heat exchanger that implements heat exchange with the exhaust gas; and an opening and closing valve provided at the first pipe, the opening and closing valve adjusting flow amounts of the exhaust gas flowing into the second pipe, wherein the first pipe includes a first pipe body and a second pipe body that, are adjacent in a flow direction of the exhaust gas, and a join portion between the first pipe body and the second pipe body is provided along a circumferential direction of the first pipe.
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公开(公告)号：US11802531B2
公开(公告)日：2023-10-31
申请号：US18056721
申请日：2022-11-18
CPC分类号： F02M65/008 , B60K6/24 , F02D41/38 , B60Y2200/92 , B60Y2400/433 , F02D2041/389
摘要： A hybrid electric vehicle includes an engine having an in-cylinder injection valve, a fuel supply device that supplies fuel to the in-cylinder injection valve, a motor that can generate an electric power through the use of a motive power output from the engine and can output a running motive power, and an electrical storage device that exchanges electric power with the motor. A deposit removal process where deposits adherent to the in-cylinder injection valve are removed by setting a pressure of fuel supplied to the in-cylinder injection valve to a predetermined pressure higher than a normal pressure and injecting fuel from the in-cylinder injection valve is performed during the performance of a forcible charging process for the electrical storage device, and the forcible charging process is continued until the pressure of fuel is returned to the normal pressure after the end of the deposit removal process.
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公开(公告)号：US12012908B2
公开(公告)日：2024-06-18
申请号：US18459363
申请日：2023-08-31
CPC分类号： F02D41/047 , F02D41/083 , F02D41/30 , F02D2041/224 , F02D2200/0602
摘要： When the vehicle is stopped and removal of deposits is not required, and forced charging of a power storage device is not being performed, the controller controls the fuel supply device so that a supply fuel pressure is at the first fuel pressure. When the vehicle is stopped and the removal of deposits is required, and the forced charging of the power storage device is being performed, the controller controls the fuel supply device so that the supply fuel pressure is at a second fuel pressure higher than the first fuel pressure. When the vehicle is stopped and the removal of deposits is required, and the forced charging of the power storage device is not being performed, the controller controls the fuel supply device so that the supply fuel pressure is at a third fuel pressure higher than the first fuel pressure and lower than the second fuel pressure.
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公开(公告)号：US11359586B2
公开(公告)日：2022-06-14
申请号：US16989896
申请日：2020-08-11
发明人： Hisayuki Itoh , Koji Ichikawa , Hirokazu Kato , Masaaki Yamaguchi
摘要： A hybrid vehicle includes an engine, an exhaust gas recirculation device, a traveling motor, and a control device. The exhaust gas recirculation device includes a communication pipe that allows an exhaust pipe and an intake pipe of the engine to communicate with each other and a valve that is provided in the communication pipe. The control device is configured to perform foreign matter removal control for opening and closing the valve when foreign matter caught in the valve is detected and the hybrid vehicle stops.
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