Patents by Inventor Kazuhiro Iketomi
Kazuhiro Iketomi 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: 11597371Abstract: A controller for a vehicle is configured to execute, when a state of charge of a battery is less than or equal to a threshold, a charging control to charge the battery with power that is generated by a motor generator using driving force of an internal combustion engine. The controller is also configured to obtain a temperature of the battery, set the threshold to a first threshold during a warm-up period, which is a period from a start of the internal combustion engine until the warm-up of the internal combustion engine is completed, set the threshold to a second threshold, which is greater than the first threshold, when the warm-up period ends, and set the second threshold to be greater when the temperature of the battery is a first temperature than when the temperature of the battery is a second temperature, which is higher than the first temperature.Type: GrantFiled: February 5, 2021Date of Patent: March 7, 2023Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuhiro Iketomi, Yasutaka Tsuchida
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Publication number: 20210300319Abstract: A controller for a vehicle is configured to execute, when a state of charge of a battery is less than or equal to a threshold, a charging control to charge the battery with power that is generated by a motor generator using driving force of an internal combustion engine. The controller is also configured to obtain a temperature of the battery, set the threshold to a first threshold during a warm-up period, which is a period from a start of the internal combustion engine until the warm-up of the internal combustion engine is completed, set the threshold to a second threshold, which is greater than the first threshold, when the warm-up period ends, and set the second threshold to be greater when the temperature of the battery is a first temperature than when the temperature of the battery is a second temperature, which is higher than the first temperature.Type: ApplicationFiled: February 5, 2021Publication date: September 30, 2021Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuhiro IKETOMI, Yasutaka TSUCHIDA
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Publication number: 20200070851Abstract: A control apparatus for a vehicle provided with an engine having a filter for removing particulate substances from an exhaust emission, drive wheels, and an automatic transmission, includes: a shift control portion configured to control a speed ratio of the automatic transmission; a drive power source control portion configured to control an output of the engine on the basis of the operator-required vehicle drive force; an engine output limiting portion configured to limit the output of the engine, preferentially to an output control of the engine by the drive power source control portion, while the filter is plugged with the particulate substances accumulated therein; and an upper limit setting portion configured to set an upper limit of the operator-required vehicle drive force used by the shift control portion, on the basis of limitation of the output of the engine by the engine output limiting portion.Type: ApplicationFiled: August 29, 2019Publication date: March 5, 2020Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shunya KATO, Yasutaka TSUCHIDA, Kazuhiro IKETOMI
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Patent number: 9932039Abstract: A control device is configured to: (i) control rotation speed of internal combustion engine such that the rotation speed of the internal combustion engine is increased with an increase in a traveling speed of a vehicle, (ii) execute a pseudo gear shift to control the rotation speed of the internal combustion engine such that the rotation speed of the internal combustion engine is decreased to a first rotation speed, (iii) execute a mechanical gear shift to change a second gear ratio according to a gear shift line determined by the traveling speed and a value according to the acceleration request, and (iv) execute adjustment control to adjust the rotation speed of the internal combustion engine in advance in a period before executing the mechanical gear shift such that the rotation speed of the internal combustion engine matches the pseudo gear shift threshold value when the mechanical gear shift is performed.Type: GrantFiled: September 4, 2015Date of Patent: April 3, 2018Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuhiro Iketomi, Shinichi Sasade, Munehiro Katsumata, Kazuyuki Shiiba, Tooru Matsubara, Takeshi Kitahata, Kenta Kumazaki
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Publication number: 20160068161Abstract: A control device is configured to: (i) control rotation speed of internal combustion engine such that the rotation speed of the internal combustion engine is increased with an increase in a traveling speed of a vehicle, (ii) execute a pseudo gear shift to control the rotation speed of the internal combustion engine such that the rotation speed of the internal combustion engine is decreased to a first rotation speed, (iii) execute a mechanical gear shift to change a second gear ratio according to a gear shift line determined by the traveling speed and a value according to the acceleration request, and (iv) execute adjustment control to adjust the rotation speed of the internal combustion engine in advance in a period before executing the mechanical gear shift such that the rotation speed of the internal combustion engine matches the pseudo gear shift threshold value when the mechanical gear shift is performed.Type: ApplicationFiled: September 4, 2015Publication date: March 10, 2016Inventors: Kazuhiro IKETOMI, Shinichi SASADE, Munehiro KATSUMATA, Kazuyuki SHIIBA, Tooru MATSUBARA, Takeshi KITAHATA, Kenta KUMAZAKI
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Patent number: 7740559Abstract: A shift control device of a vehicular automatic transmission, if during a first shift in a power-off state, a second shift judgment for a second shift that is a power-on downshift is made, performs a second shift control of lowering an input shaft rotation speed to a synchronous rotation speed of a post-second shift gear step through an engagement control of the friction engagement devices, and when the second shift is performed, performs a control of reducing a throttle valve opening degree of the engine to a predetermined degree that causes the engine to output a torque that is able to bring the input shaft rotation speed to a rotation speed that is higher than the synchronous rotation speed of the post-second shift gear step. The control device also executes a retardation control of retarding an ignition timing of the engine when the input shaft rotation speed is dropped through the second shift control.Type: GrantFiled: November 21, 2006Date of Patent: June 22, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Ayabe, Toshio Sugimura, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie
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Patent number: 7563197Abstract: In a shift control device and a shift control method of an automatic transmission that establishes a plurality of gear steps of different speed change ratios by selectively engaging a plurality of friction engagement devices, one of a shift start time point and an inertia phase start time point is used as a reference time. In a power-off shift, the shift action is compulsorily ended when the elapsed time from the reference time exceeds a first time. In a power-on shift, the shift action is compulsorily ended when the elapsed time from the reference time exceeds a second time that is set shorter than the first time. If a switch from the power-off shift to the power-on shift occurs halfway through the power-off shift, the shift action is compulsorily ended when the elapsed time from the time point of the switch exceeds a predetermined time.Type: GrantFiled: October 24, 2006Date of Patent: July 21, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Ayabe, Toshio Sugimura, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie
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Patent number: 7563198Abstract: A shift control device of a vehicular automatic transmission that establishes a plurality of gear steps of different speed change ratios by selectively engaging a plurality of friction engagement devices ends the shift control by making an engagement end determination regarding an engagement-side friction engagement device if it has been determined continuously for a predetermined time that the input shaft rotation speed of the automatic transmission is in the vicinity of the synchronous rotation speed of the post-shift gear step. The predetermined time is set at a first time if the downshift is a power-on downshift due to a shift judgement in a power-on state, and is set at a second time that is shorter than the first time if the downshift is a power-off?on downshift selected in connection with a change to the power-on state during a power-off shift due to the shift judgment in a power-off state.Type: GrantFiled: November 22, 2006Date of Patent: July 21, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Atsushi Ayabe, Toshio Sugimura, Ayumu Sagawa, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie
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Publication number: 20070117676Abstract: A shift control device of a vehicular automatic transmission that establishes a plurality of gear steps of different speed change ratios by selectively engaging a plurality of friction engagement devices ends the shift control by making an engagement end determination regarding an engagement-side friction engagement device if it has been determined continuously for a predetermined time that the input shaft rotation speed of the automatic transmission is in the vicinity of the synchronous rotation speed of the post-shift gear step. The predetermined time is set at a first time if the downshift is a power-on downshift due to a shift judgement in a power-on state, and is set at a second time that is shorter than the first time if the downshift is a power-off?on downshift selected in connection with a change to the power-on state during a power-off shift due to the shift judgment in a power-off state.Type: ApplicationFiled: November 22, 2006Publication date: May 24, 2007Inventors: Atsushi Ayabe, Toshio Sugimura, Ayumu Sagawa, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie
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Publication number: 20070117677Abstract: A shift control device of a vehicular automatic transmission, if during a first shift in a power-off state, a second shift judgment for a second shift that is a power-on downshift is made, performs a second shift control of lowering an input shaft rotation speed to a synchronous rotation speed of a post-second shift gear step through an engagement control of the friction engagement devices, and when the second shift is performed, performs a control of reducing a throttle valve opening degree of the engine to a predetermined degree that causes the engine to output a torque that is able to bring the input shaft rotation speed to a rotation speed that is higher than the synchronous rotation speed of the post-second shift gear step. The control device also executes a retardation control of retarding an ignition timing of the engine when the input shaft rotation speed is dropped through the second shift control.Type: ApplicationFiled: November 21, 2006Publication date: May 24, 2007Inventors: Atsushi Ayabe, Toshio Sugimura, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie
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Publication number: 20070093358Abstract: In a shift control device and a shift control method of an automatic transmission that establishes a plurality of gear steps of different speed change ratios by selectively engaging a plurality of friction engagement devices, one of a shift start time point and an inertia phase start time point is used as a reference time. In a power-off shift, the shift action is compulsorily ended when the elapsed time from the reference time exceeds a first time. In a power-on shift, the shift action is compulsorily ended when the elapsed time from the reference time exceeds a second time that is set shorter than the first time. If a switch from the power-off shift to the power-on shift occurs halfway through the power-off shift, the shift action is compulsorily ended when the elapsed time from the time point of the switch exceeds a predetermined time.Type: ApplicationFiled: October 24, 2006Publication date: April 26, 2007Inventors: Atsushi Ayabe, Toshio Sugimura, Takahiko Tsutsumi, Hisashi Ishihara, Kazuhiro Iketomi, Yosuke Takaie