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公开(公告)号：US20220307441A1
公开(公告)日：2022-09-29
申请号：US17676227
申请日：2022-02-21
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Takanobu GOTOH
Abstract: A control device of an internal combustion engine including an electronic control unit configured to execute: a base injection amount calculation process of calculating a base value; an injection valve operation process of operative the fuel injection valve; a feedback process of correcting an injection amount in the injection valve operation process; and a determination process of determining whether or not the amount of fuel flowing into the cylinders other than fuel injected from the fuel injection valve is equal to or larger than a threshold value. When it is determined as a result of the determination that the amount of fuel flowing into the cylinders other than the fuel injected from the fuel injection valve is equal to or larger than the threshold value, the electronic control unit (does not execute the process of injecting fuel from the fuel injection valve with the feedback process stopped.
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公开(公告)号：US20220268231A1
公开(公告)日：2022-08-25
申请号：US17583204
申请日：2022-01-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Takanobu GOTOH
Abstract: A CPU increases an injection amount when a coolant temperature of an internal combustion engine is equal to or lower than a predetermined temperature. The CPU corrects the injection amount to control an air-fuel ratio to a target value in a feedback manner. The CPU performs a temperature raising process for a GPF, by stopping fuel injection in a second cylinder and making the air-fuel ratio of an air-fuel mixture in first, third, and fourth cylinders richer than a theoretical air-fuel ratio. In performing the temperature raising process, the CPU stops a feedback process of the air-fuel ratio. In performing the temperature raising process, the CPU corrects the injection amount in a decreasing manner in accordance with an operation amount of the feedback process before the performance of the temperature raising process.
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公开(公告)号：US20220268230A1
公开(公告)日：2022-08-25
申请号：US17540118
申请日：2021-12-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Takanobu GOTOH
Abstract: A control device and a control method for a multi-cylinder internal combustion engine including a post-processing device are provided. The control device includes an electronic control unit executing a temperature raising process of raising the temperature of the post-processing device and a recovery-time process. The temperature raising process includes a stopping process and a rich process. In the stopping process, supply of fuel to several of cylinders is stopped. In the rich process, the air-fuel ratio of an air-fuel mixture for different ones of the cylinders other than the several cylinders is made lower than the stoichiometric air-fuel ratio. In the recovery-time process, the concentration of unburned fuel in exhaust gas discharged to the exhaust passage is made higher than an equivalent concentration, when the temperature raising process is stopped. The equivalent concentration is the concentration of unburned fuel being just enough to react with oxygen in the exhaust gas.
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公开(公告)号：US20220145818A1
公开(公告)日：2022-05-12
申请号：US17521166
申请日：2021-11-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Takanobu GOTOH
Abstract: When an amount of PM trapped by a GPF is large and a request for regeneration is made, a CPU determines whether an execution condition for executing a temperature increasing process is satisfied. At a point in time t1, at which the execution condition is satisfied, the CPU executes a scavenging process to assign 1 to a condition satisfaction flag Ftr, cause the air-fuel ratio of air-fuel mixture in cylinders #1, #3, and #4 to be the stoichiometric air-fuel ratio, and stop a combustion operation in a cylinder #2. After a point in time t2, which is after a combustion cycle, the CPU executes a temperature increasing process. The temperature increasing process causes the air-fuel ratio of the air-fuel mixture in the cylinders #1, #3, and #4 to be richer than the stoichiometric air-fuel ratio, and stops the combustion operation in the cylinder #2.
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公开(公告)号：US20200049096A1
公开(公告)日：2020-02-13
申请号：US16530033
申请日：2019-08-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Yoshiyuki SHOGENJI , Hirokazu ANDO
Abstract: A controller for an internal combustion engine is configured to control the internal combustion engine. The internal combustion engine includes an in-cylinder injection valve, an ignition device, an exhaust passage, and a three-way catalyst. The controller includes a fuel introduction processor configured to execute a fuel introduction process of introducing air-fuel mixture of fuel and air, which has been introduced into a cylinder, into the exhaust passage without burning the air-fuel mixture in the cylinder. The fuel introduction processor is configured to execute the fuel introduction process in a state in which only a port injection valve of the in-cylinder injection valve and the port injection valve performs fuel injection.
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Patent Agency Ranking
公开(公告)号：US20200049087A1
公开(公告)日：2020-02-13
申请号：US16458293
申请日：2019-07-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Yoshiyuki SHOGENJI , Hirokazu ANDO
IPC: F02D41/02
Abstract: An engine controller executes a fuel introduction process of introducing, in a state in which the crankshaft of an internal combustion engine is rotating, air-fuel mixture that contains fuel injected by a fuel injection valve into the exhaust passage without burning the air-fuel mixture in the cylinder. When the oxygen concentration of exit gas that has passed through a three-way catalyst decreases during the execution of the fuel introduction process, the engine controller executes a stopping process of stopping the fuel introduction process.
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公开(公告)号：US20240344475A1
公开(公告)日：2024-10-17
申请号：US18587969
申请日：2024-02-27
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Koji UMEZAWA , Makoto YAMAZAKI
CPC classification number: F01N3/208 , F02D41/0245 , F02P5/1504 , F01N2610/02 , F01N2900/1602
Abstract: A controller for a hydrogen engine controls a hydrogen engine including a selective catalytic reduction (SCR) device installed in an exhaust passage and a urea addition valve that adds urea to exhaust gas flowing through a portion of the exhaust passage upstream of the SCR device. Processing circuitry of the controller executes a reduction process that causes a urea addition amount of the urea addition valve to be smaller when a urea deposition amount of the SCR device is greater than or equal to a prescribed value than when the urea deposition amount is less than the prescribed value. The processing circuitry executes a lean-burn limiting process that sets an air-fuel ratio of an air-fuel mixture to be burned in the hydrogen engine to a value less than or equal to a prescribed lean-burn limiting value while the reduction process is reducing the urea addition amount.
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公开(公告)号：US20230303057A1
公开(公告)日：2023-09-28
申请号：US18165367
申请日：2023-02-07
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA
CPC classification number: B60W20/10 , B60W10/06 , B60W10/08 , F01N3/023 , F02D41/0087 , F02D41/029 , B60W2710/0616 , B60W2710/08 , B60W2710/0622
Abstract: A controller for a vehicle is provided. An air supply passage is connected to a portion upstream of a filter in an exhaust passage. An air supplying process supplies air to the filter through an air supply passage by driving an air pump. An oxygen supplying process supplies oxygen to the filter through the exhaust passage, the oxygen having been passed through a combustion chamber of an internal combustion engine. A reducing process sets an air supply amount per unit time in the air supplying process obtained when the oxygen supplying process and the air supplying process are simultaneously executed to be lower than the air supply amount per unit time in the air supplying process obtained when the oxygen supplying process and the air supplying process are not simultaneously executed.
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公开(公告)号：US20230036865A1
公开(公告)日：2023-02-02
申请号：US17829362
申请日：2022-06-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Takanobu GOTOH
Abstract: When an amount of particulate matter (PM) collected by a gasoline particulate filter (GPF) reaches a predetermined amount, a central processing unit (CPU) executes a regeneration process for regenerating the GPF. That is, the CPU stops supply of fuel to any one of cylinders #1 to #4, while increasing an amount of fuel supplied to remaining cylinders. When a temperature of a three-way catalyst becomes equal to or higher than a first temperature, the CPU increases an injection amount to lower a temperature of exhaust gas. When the temperature of the three-way catalyst becomes equal to or higher than the first temperature during the execution of the regeneration process, the CPU does not increase the injection amount.
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30.发明申请公开(公告)号：US20220145843A1
公开(公告)日：2022-05-12
申请号：US17491718
申请日：2021-10-01
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Takanobu GOTOH
Abstract: A multi-cylinder internal combustion engine is configured to perform an all-cylinder operation and a partial-cylinder operation. The ignition timing controller executes a process that sets a knock control amount and a knock learning value, a process that determines whether knocking is occurring, a process that updates a value of the knock control amount in accordance with whether knocking is occurring, a process that updates the knock learning value such that the knock learning value gradually approaches a knock control operated amount, a process that operates ignition timing of each cylinder based on the knock control amount and the knock learning value, and a process that limits update of the knock learning value such that a followability of the knock learning value to the knock control operated amount is lower during the partial-cylinder operation than during the all-cylinder operation.
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