Patents by Inventor Motohiro Sugimoto
Motohiro Sugimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11965473Abstract: An internal combustion engine includes a port injection valve, a direct injection valve, and a forced-induction device. A ratio of an amount of fuel injected from the port injection valve with respect to a total amount of fuel supplied for one fuel combustion in the cylinder is defined as a port injection ratio. The internal combustion engine is controlled such that, in a case in which a condition is satisfied that the forced-induction device is in an operation of performing forced induction and the internal combustion engine is in an engine operation region in which a valve overlap period is greater than zero, the port injection ratio is set to be small and a start timing of fuel injection from the port injection valve is delayed as compared with a case in which the condition is not satisfied.Type: GrantFiled: March 7, 2023Date of Patent: April 23, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Rihito Kaneko, Motohiro Sugimoto, Takahiro Uchida
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Publication number: 20230287844Abstract: An internal combustion engine includes a port injection valve, a direct injection valve, and a forced-induction device. A ratio of an amount of fuel injected from the port injection valve with respect to a total amount of fuel supplied for one fuel combustion in the cylinder is defined as a port injection ratio. The internal combustion engine is controlled such that, in a case in which a condition is satisfied that the forced-induction device is in an operation of performing forced induction and the internal combustion engine is in an engine operation region in which a valve overlap period is greater than zero, the port injection ratio is set to be small and a start timing of fuel injection from the port injection valve is delayed as compared with a case in which the condition is not satisfied.Type: ApplicationFiled: March 7, 2023Publication date: September 14, 2023Inventors: Masanao IDOGAWA, Rihito KANEKO, Motohiro SUGIMOTO, Takahiro UCHIDA
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Patent number: 11313314Abstract: A control apparatus of an internal combustion engine is provided. The internal combustion engine includes a port injection valve that injects fuel into an intake-air port, and a cylinder injection valve that injects fuel into a cylinder. The control apparatus includes an electronic control unit that controls the port injection valve and the cylinder injection valve such that when returning from a fuel cut, a value of a port increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a port injection, differs from a value of a cylinder increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a cylinder injection.Type: GrantFiled: June 28, 2021Date of Patent: April 26, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiromitsu Seo, Masatomo Yoshihara, Masanao Idogawa, Takahiro Uchida, Motohiro Sugimoto
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Publication number: 20210404409Abstract: A control apparatus of an internal combustion engine is provided. The internal combustion engine includes a port injection valve that injects fuel into an intake-air port, and a cylinder injection valve that injects fuel into a cylinder. The control apparatus includes an electronic control unit that controls the port injection valve and the cylinder injection valve such that when returning from a fuel cut, a value of a port increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a port injection, differs from a value of a cylinder increase amount correction, which is a fuel increase amount correction in which a fuel amount is decreased with a lapse of time during a cylinder injection.Type: ApplicationFiled: June 28, 2021Publication date: December 30, 2021Inventors: Hiromitsu SEO, Masatomo YOSHIHARA, Masanao IDOGAWA, Takahiro UCHIDA, Motohiro SUGIMOTO
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Patent number: 10711722Abstract: A controller includes a P/L learning unit that performs P/L learning, a purge learning unit that performs purge learning, an air-fuel ratio learning unit that performs air-fuel ratio learning, and a storage unit that stores learning result. When the learning result of each learning process is not stored in the storage unit at the time of engine start, the P/L learning unit learns an injection characteristic of an in-cylinder injection valve through the P/L learning process whenever the in-cylinder injection valve performs the P/L injection and interrupts the P/L learning process before the P/L learning process is completed. The purge learning unit performs the purge learning process, and the air-fuel ratio learning unit starts the air-fuel ratio learning process provided that the P/L learning process is interrupted. The P/L learning unit then resumes the P/L learning process provided that the purge learning process is completed.Type: GrantFiled: October 31, 2018Date of Patent: July 14, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao Idogawa, Narumi Murakami, Motohiro Sugimoto
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Patent number: 10487769Abstract: A fuel injection control apparatus for an internal combustion engine includes a low pressure fuel pump, a low pressure fuel passage, a high pressure fuel pump, a high pressure fuel passage, a fuel injection valve, a high pressure controller, and a low pressure controller. The low pressure controller calculates a feedforward correction amount that increases as a request injection amount of the fuel injection valve increases and an increase rate of the high pressure target value increases when a high pressure target value increases. The low pressure controller calculates a feedback correction amount based on a low-side pressure deviation when the high pressure target value increases. The low pressure controller controls driving of the low pressure fuel pump based on a sum of the feedforward correction amount and the feedback correction amount.Type: GrantFiled: August 28, 2018Date of Patent: November 26, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Sohichi Imai, Motohiro Sugimoto, Masanao Idogawa
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Publication number: 20190162132Abstract: An electronic control unit is configured to switch a drive mode of a first high-pressure fuel pump and a second high-pressure fuel pump, in accordance with an operating state of an internal combustion engine, either to a twin-drive mode, in which both the first high-pressure fuel pump and the second high-pressure fuel pump are driven, or to a single-drive mode, in which either one of the first high-pressure fuel pump and the second high-pressure fuel pump is driven. The electronic control unit is configured to determine whether or not a pump ambient temperature, which is the ambient temperature of the first high-pressure fuel pump and the second high-pressure fuel pump, is equal to or higher than a predetermined first temperature. In a case where the pump ambient temperature is equal to or higher than the first temperature, the electronic control unit turns ON a twin-drive mode request flag.Type: ApplicationFiled: November 12, 2018Publication date: May 30, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Motohiro SUGIMOTO, Masanao IDOGAWA, Narumi MURAKAMI
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Publication number: 20190153972Abstract: A controller includes a P/L learning unit that performs P/L learning, a purge learning unit that performs purge learning, an air-fuel ratio learning unit that performs air-fuel ratio learning, and a storage unit that stores learning result. When the learning result of each learning process is not stored in the storage unit at the time of engine start, the P/L learning unit learns an injection characteristic of an in-cylinder injection valve through the P/L learning process whenever the in-cylinder injection valve performs the P/L injection and interrupts the P/L learning process before the P/L learning process is completed. The purge learning unit performs the purge learning process, and the air-fuel ratio learning unit starts the air-fuel ratio learning process provided that the P/L learning process is interrupted. The P/L learning unit then resumes the P/L learning process provided that the purge learning process is completed.Type: ApplicationFiled: October 31, 2018Publication date: May 23, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanao IDOGAWA, Narumi MURAKAMI, Motohiro SUGIMOTO
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Publication number: 20190093591Abstract: A fuel injection control apparatus for an internal combustion engine includes a low pressure fuel pump, a low pressure fuel passage, a high pressure fuel pump, a high pressure fuel passage, a fuel injection valve, a high pressure controller, and a low pressure controller. The low pressure controller calculates a feedforward correction amount that increases as a request injection amount of the fuel injection valve increases and an increase rate of the high pressure target value increases when a high pressure target value increases. The low pressure controller calculates a feedback correction amount based on a low-side pressure deviation when the high pressure target value increases. The low pressure controller controls driving of the low pressure fuel pump based on a sum of the feedforward correction amount and the feedback correction amount.Type: ApplicationFiled: August 28, 2018Publication date: March 28, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Sohichi IMAI, Motohiro SUGIMOTO, Masanao IDOGAWA
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Patent number: 7493517Abstract: Each time a sync controller sequentially issues a read request to a memory controller, a count value of a first counter is incremented. When a read operation is conducted for the read request, a count value of a second counter is incremented and the data is transferred to a standby computer. If a memory write instruction is issued during a memory copy operation, an address comparator compares a write address of the memory write instruction with the count values of the first and second counters. If the write address is more than the count values, the memory write operation is permitted. If the write address is equal to the count value of the first counter, the process waits for termination of the data read operation. Otherwise, the write operation is immediately permitted and the write data is transferred to the sync controller. Data of a memory on the active side can be hence copied onto the standby computer without stopping the system operation.Type: GrantFiled: December 15, 2005Date of Patent: February 17, 2009Assignee: NEC CorporationInventor: Motohiro Sugimoto
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Publication number: 20060149903Abstract: Each time a sync controller sequentially issues a read request to a memory controller, a count value of a first counter is incremented. When a read operation is conducted for the read request, a count value of a second counter is incremented and the data is transferred to a standby computer. If a memory write instruction is issued during a memory copy operation, an address comparator compares a write address of the memory write instruction with the count values of the first and second counters. If the write address is more than the count values, the memory write operation is permitted. If the write address is equal to the count value of the first counter, the process waits for termination of the data read operation. Otherwise, the write operation is immediately permitted and the write data is transferred to the sync controller. Data of a memory on the active side can be hence copied onto the standby computer without stopping the system operation.Type: ApplicationFiled: December 15, 2005Publication date: July 6, 2006Applicant: NEC CorporationInventor: Motohiro Sugimoto