Patents by Inventor Shinya OHORI
Shinya OHORI 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: 11181061Abstract: A control apparatus performs a diagnosis process for determining whether or not catalyst warm-up control is abnormal by determining whether or not an ignition timing that is set during the performance of catalyst warm-up control is a timing advanced by a threshold or more. The threshold is a value that is set to a timing more advanced than the ignition timing that is set during the performance of catalyst warm-up control by a predetermined margin. The control apparatus performs a setting process for setting the threshold based on a start-up coolant temperature such that the margin becomes larger when the start-up coolant temperature is low than when the start-up coolant temperature is high.Type: GrantFiled: June 2, 2020Date of Patent: November 23, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Ohori, Chisa Watanabe, Yuki Ikejiri
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Patent number: 11174804Abstract: A controller includes a soak timer, a nonvolatile memory, and a determining section. The determining section is configured to perform a rationality check on a condition that a performance condition is met. The determining section is also configured to make the performance condition strict when an obtained index value of a vehicle outside temperature, that is obtained when an elapsed amount of time reaches a specified amount of time, and the determining section is activated, is higher than a stored index value of the vehicle outside temperature stored in the nonvolatile memory.Type: GrantFiled: December 22, 2020Date of Patent: November 16, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Ohori, Miwa Hinoshita, Junji Hyodoh
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Patent number: 11098667Abstract: During operation of the engine for a time period from a system-on operation to a system-off operation, the vehicle causes the warming-up determination parameter to be subject to addition when an engine is not in a flow path heat release state where an amount of heat released in the supply flow path is expected to be larger than an amount of heat received in the supply flow path, while causing the warming-up determination parameter to be subject to subtraction when the engine is in the flow path heat release state and a duration time of the flow path heat release state is equal to or longer than a first predetermined time period.Type: GrantFiled: June 2, 2020Date of Patent: August 24, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Ohori, Naoya Okubo
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Publication number: 20210215112Abstract: A controller includes a soak timer, a nonvolatile memory, and a determining section. The determining section is configured to perform a rationality check on a condition that a performance condition is met. The determining section is also configured to make the performance condition strict when an obtained index value of a vehicle outside temperature, that is obtained when an elapsed amount of time reaches a specified amount of time, and the determining section is activated, is higher than a stored index value of the vehicle outside temperature stored in the nonvolatile memory.Type: ApplicationFiled: December 22, 2020Publication date: July 15, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Miwa HINOSHITA, Junji HYODOH
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Patent number: 10982619Abstract: A controller for vehicle is provided. A determining section obtains fuel pressure in a delivery pipe and performs a rationality check for determining whether the obtained fuel pressure is within a normal range. The determining section shifts the normal range toward a high pressure side when a second index value of a vehicle outside temperature is higher than a first index value as compared with when the second index value is not higher than the first index value. The second index value is obtained when the determining section is activated. The first index value is stored in a nonvolatile memory before a main switch is turned off so that power supply is stopped.Type: GrantFiled: April 23, 2020Date of Patent: April 20, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya Ohori, Naoya Okubo, Yukio Kobayashi, Seiji Hino
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Publication number: 20210087989Abstract: A control apparatus performs a diagnosis process for determining whether or not catalyst warm-up control is abnormal by determining whether or not an ignition timing that is set during the performance of catalyst warm-up control is a timing advanced by a threshold or more. The threshold is a value that is set to a timing more advanced than the ignition timing that is set during the performance of catalyst warm-up control by a predetermined margin. The control apparatus performs a setting process for setting the threshold based on a start-up coolant temperature such that the margin becomes larger when the start-up coolant temperature is low than when the start-up coolant temperature is high.Type: ApplicationFiled: June 2, 2020Publication date: March 25, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Chisa WATANABE, Yuki IKEJIRI
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Publication number: 20210033037Abstract: During operation of the engine for a time period from a system-on operation to a system-off operation, the vehicle causes the warming-up determination parameter to be subject to addition when an engine is not in a flow path heat release state where an amount of heat released in the supply flow path is expected to be larger than an amount of heat received in the supply flow path, while causing the warming-up determination parameter to be subject to subtraction when the engine is in the flow path heat release state and a duration time of the flow path heat release state is equal to or longer than a first predetermined time period.Type: ApplicationFiled: June 2, 2020Publication date: February 4, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Naoya Okubo
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Publication number: 20200408164Abstract: A controller for vehicle is provided. A determining section obtains fuel pressure in a delivery pipe and performs a rationality check for determining whether the obtained fuel pressure is within a normal range. The determining section shifts the normal range toward a high pressure side when a second index value of a vehicle outside temperature is higher than a first index value as compared with when the second index value is not higher than the first index value. The second index value is obtained when the determining section is activated. The first index value is stored in a nonvolatile memory before a main switch is turned off so that power supply is stopped.Type: ApplicationFiled: April 23, 2020Publication date: December 31, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Naoya Okubo, Yukio Kobayashi, Seiji Hino
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Patent number: 10145328Abstract: After a system-off state has continued for a preset, time period since a system-off operation, on satisfaction of abnormality diagnosis prerequisites including a condition that a warm-up determination parameter indicating a degree of warm-up of an engine at a system-off time is equal to or greater than a predetermined value, characteristic abnormality diagnosis is performed to determine whether a characteristic abnormality occurs in a fuel pressure sensor. For a time period from a system-on operation to a system-off operation, the warm-up determination parameter is incremented when the engine is in operation, while being decremented after satisfaction of a predetermined condition when the engine is not in operation.Type: GrantFiled: December 8, 2017Date of Patent: December 4, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Ohori, Junji Hyodo
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Publication number: 20180163661Abstract: After a system-off state has continued for a preset, time period since a system-off operation, on satisfaction of abnormality diagnosis prerequisites including a condition that a warm-up determination parameter indicating a degree of warm-up of an engine at a system-off time is equal to or greater than a predetermined value, characteristic abnormality diagnosis is performed to determine whether a characteristic abnormality occurs in a fuel pressure sensor. For a time period from a system-on operation to a system-off operation, the warm-up determination parameter is incremented when the engine is in operation, while being decremented after satisfaction of a predetermined condition when the engine is not in operation.Type: ApplicationFiled: December 8, 2017Publication date: June 14, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Junji HYODO
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Patent number: 9759150Abstract: On start of an engine, a difference ?Pm between a first intake pipe pressure Pm1 and a second intake pipe pressure Pm2 is computed. Reduction correction of wall surface deposition correction is prohibited until the state that the difference ?Pm is equal to or less than a reference value ?Pmref continues over a predetermined number of strokes nref of the engine. After the state that the difference ?Pm is equal to or less than the reference value ?Pmref continues over the predetermined number of strokes nref of the engine, permission is given for the reduction correction.Type: GrantFiled: February 11, 2016Date of Patent: September 12, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Ohori, Yoshiaki Ito, Makoto Yamazaki
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Publication number: 20160237934Abstract: On start of an engine, a difference ?Pm between a first intake pipe pressure Pm1 and a second intake pipe pressure Pm2 is computed. Reduction correction of wall surface deposition correction is prohibited until the state that the difference ?Pm is equal to or less than a reference value ?Pmref continues over a predetermined number of strokes nref of the engine. After the state that the difference ?Pm is equal to or less than the reference value ?Pmref continues over the predetermined number of strokes nref of the engine, permission is given for the reduction correction.Type: ApplicationFiled: February 11, 2016Publication date: August 18, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Yoshiaki ITO, Makoto YAMAZAKI
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Patent number: 8897992Abstract: A control device for an internal combustion engine includes: a variable valve timing mechanism that changes a valve timing; and a control unit that controls a change of the valve timing. The control unit sets an engine stop request-time target valve timing that is a target valve timing at the time when a request for an engine stop is issued, starts control for changing the valve timing coincides with the engine stop request-time target valve timing and causes the internal combustion engine to operate at an idle at the time when the request for the engine stop is issued, starts a process of stopping operation of internal combustion engine at the time when the valve timing has reached a predetermined valve timing.Type: GrantFiled: December 20, 2012Date of Patent: November 25, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Ohori, Daigo Ando
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Patent number: 8855891Abstract: A control device for an internal combustion engine includes: a variable valve timing mechanism that changes a valve timing; and a control unit that controls a change of the valve timing. The control unit sets an engine stop request-time target valve timing that is a target valve timing at the time when a request for an engine stop is issued, starts control for changing the valve timing coincides with the engine stop request-time target valve timing and causes the internal combustion engine to operate at an idle at the time when the request for the engine stop is issued, starts a process of stopping operation of internal combustion engine at the time when the valve timing has reached a predetermined valve timing.Type: GrantFiled: December 20, 2012Date of Patent: October 7, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shinya Ohori, Daigo Ando
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Publication number: 20130160727Abstract: A control device for an internal combustion engine includes: a variable valve timing mechanism that changes a valve timing; and a control unit that controls a change of the valve timing. The control unit sets an engine stop request-time target valve timing that is a target valve timing at the time when a request for an engine stop is issued, starts control for changing the valve timing coincides with the engine stop request-time target valve timing and causes the internal combustion engine to operate at an idle at the time when the request for the engine stop is issued, starts a process of stopping operation of internal combustion engine at the time when the valve timing has reached a predetermined valve timing.Type: ApplicationFiled: December 20, 2012Publication date: June 27, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinya OHORI, Daigo ANDO