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公开(公告)号：US20200049086A1
公开(公告)日：2020-02-13
申请号：US16519401
申请日：2019-07-23
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Keiichi MYOJO , Hirokazu ANDO
Abstract: A controller is configured to control an internal combustion engine. The controller is configured to execute a catalyst temperature-increasing control of increasing a temperature of the three-way catalyst device by introducing air-fuel mixture, which contains the fuel injected by a fuel injection valve, into an exhaust passage without burning the air-fuel mixture in a cylinder. The controller includes an air-fuel ratio control unit configured to control an air-fuel ratio of the air-fuel mixture during the execution of the catalyst temperature-increasing control such that the air-fuel ratio becomes a richer air-fuel ratio during a first period from a beginning of the catalyst temperature-increasing control to a specified air-fuel ratio switching timing than during a second period from the air-fuel ratio switching timing to a completion of the catalyst temperature-increasing control.
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12.发明申请公开(公告)号：US20250109720A1
公开(公告)日：2025-04-03
申请号：US18827947
申请日：2024-09-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Satoshi IDO , Makoto YAMAZAKI , Katsuhiro ITO , Koji UMEZAWA
Abstract: A controller and a control method for an internal combustion engine are provided. The internal combustion engine uses hydrogen as fuel. A base value of a fuel injection amount is calculated based on a requested torque. A smaller one of an upper limit value of the fuel injection amount and the base value is set as a target value. The upper limit value corresponds to an engine load factor. A NOx concentration difference is a difference between a NOx concentration in exhaust gas and a reference value for the NOx concentration. When the NOx concentration difference is greater than or equal to a threshold value, a relationship between the engine load factor and the upper limit value is corrected such that the upper limit value decreases.
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公开(公告)号：US20230119192A1
公开(公告)日：2023-04-20
申请号：US17932672
申请日：2022-09-16
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Yasuyuki TAKAMA
Abstract: A CPU prompts a user to drive a vehicle to a repair shop by operating a display when an amount of PM deposited in a GPF increases. When a regeneration request for the GPF is input from a shop-side terminal in the repair shop, the CPU performs a regeneration process in a state in which the vehicle stops. The CPU controls a temperature of the GPF such that the temperature at the time of execution of the regeneration process becomes lower when an opening/closing member is in a closed state than when the opening/closing member is in an open state.
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公开(公告)号：US20220307437A1
公开(公告)日：2022-09-29
申请号：US17702791
申请日：2022-03-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Takanobu GOTOH
Abstract: A CPU of a control device is configured to perform a specific cylinder fuel cutoff process of causing an internal combustion engine to operate such that supply of fuel to some cylinders out of a plurality of cylinders is stopped and supply of fuel to the other cylinders is maintained and a fastening force decreasing process of decreasing a fastening force of a lockup clutch of a torque converter. The CPU is configured to start the specific cylinder fuel cutoff process in a state in which the fastening force has been decreased through the fastening force decreasing process when the specific cylinder fuel cutoff process is performed in a state in which the internal combustion engine operates with a load.
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公开(公告)号：US20220266814A1
公开(公告)日：2022-08-25
申请号：US17674758
申请日：2022-02-17
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Suguru KUMAZAWA , Takanobu GOTOH
Abstract: A controller and a control method for a hybrid electric vehicle are provided. An internal combustion engine and a first rotating electric machine are capable of applying power to a driven wheel via a power split device. A deactivating process deactivates combustion control in a deactivated cylinder that corresponds to one or more of cylinders of the internal combustion engine. A first compensation process sets, when the deactivating process is executed, torque of the first rotating electric machine to be larger than torque of the first rotating electric machine obtained prior to starting the deactivating process so as to compensate for at least some of a decrease amount of torque of the internal combustion engine resulting from the deactivating process.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20220235724A1
公开(公告)日：2022-07-28
申请号：US17457520
申请日：2021-12-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuki NOSE , Yuto IKEDA , Takanobu GOTOH
Abstract: A controller and a control method for internal combustion engine, and a memory medium are provided. A port injection ratio is changed according to an engine operating state of the internal combustion engine. The port injection ratio is a ratio of a port injection amount that is an amount of fuel injected by port injection valves to an amount of fuel supplied to cylinders from the port injection valves and direct injection valves. An injection reducing process causes a fuel injection amount in a reduced-injection cylinder to be smaller than a fuel injection amount in other cylinders. An increase limiting process limits increases in an adhered fuel amount in intake ports by regulating the port injection ratio during execution of the injection reducing process.
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公开(公告)号：US20220178287A1
公开(公告)日：2022-06-09
申请号：US17457493
申请日：2021-12-03
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Takanobu GOTOH
Abstract: When a temperature increasing process is performed, a CPU sets a target temperature of a catalyst to be lower when a coolant temperature is low than when the coolant temperature is high. The CPU decreases an increase coefficient of fuel in the temperature increasing process when a value obtained by subtracting an estimated value of a temperature of the catalyst from the target temperature is equal to or less than a first prescribed value.
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公开(公告)号：US20200049121A1
公开(公告)日：2020-02-13
申请号：US16459823
申请日：2019-07-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Yuki NOSE , Keiichi MYOJO , Hirokazu ANDO
Abstract: A 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. The controller executes a discharge process of performing spark discharge of an ignition plug at non-combustion ignition timing during the execution of the fuel introduction process. The non-combustion ignition timing is timing within a period in which the air-fuel mixture is not burned in the cylinder even if the spark discharge of the ignition plug is performed.
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公开(公告)号：US20240271582A1
公开(公告)日：2024-08-15
申请号：US18436036
申请日：2024-02-08
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Koji UMEZAWA , Makoto YAMAZAKI
CPC classification number: F02D41/0235 , F01N3/208 , F02D41/0027 , F02D41/1475 , F01N2610/02 , F01N2900/1814 , F02D2250/36
Abstract: An internal combustion engine includes a fuel injection valve configured to inject hydrogen gas into the cylinder, a selective catalytic reduction catalyst located in an exhaust passage and configured to remove NOx, a urea water injection valve configured to inject urea water into the catalyst, a tank that stores urea water injected by the urea water injection valve, and a remaining amount detection sensor configured to detect a remaining amount of urea water stored in the tank. A controller for the internal combustion engine is configured to execute a restriction process that controls, when the remaining amount is less than a set value, an injection amount of hydrogen gas by the fuel injection valve such that an air excess ratio in the cylinder becomes greater than or equal to a specified excess ratio that is greater than 1.
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公开(公告)号：US20230407801A1
公开(公告)日：2023-12-21
申请号：US18134294
申请日：2023-04-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yuto IKEDA , Ryota SUGIYAMA , Takanobu GOTOH
IPC: F02D41/00
CPC classification number: F02D41/0087 , F02D2200/02 , F02D2250/12
Abstract: The vehicle control device executes: a stop process for stopping fuel supply to two cylinders to be stopped; and a selection process of selecting one cylinder to be a stop instruction for stopping fuel supply from among the cylinders to be stopped. The selection process is a process of selecting a cylinder whose compression top dead center appears earliest among the stop target cylinders. The crank angle interval from when the cylinder to be the stop instruction target is selected until the stop instruction target cylinder is switched to the next cylinder among the stop target cylinders is the stoppable angle interval. The stop instruction for the selected cylinder is received before the fuel injection start time and at the stoppable angle interval. The control device executes a retard process of retarding the fuel injection start timing so that the stoppable angle interval includes the fuel injection start timing.
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