Patents by Inventor Yoshio Hasegawa
Yoshio Hasegawa 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: 10254051Abstract: There is provided a control system of a chemical heat accumulator which enables to facilitate small-sizing of the chemical heat accumulator by carrying out heat release and heat accumulation according to a degree of priority by appropriately selecting a location of carrying out the heat release and heat accumulation on priority basis. A chemical heat accumulator includes a valve mechanism which makes a plurality of reactors communicate separately with a reservoir, and cuts off the plurality of reactors from the reservoir.Type: GrantFiled: February 16, 2017Date of Patent: April 9, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi Amano, Hidefumi Aikawa, Yoshio Hasegawa, Jumpei Kashiwakura
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Publication number: 20180283260Abstract: The cooling apparatus of the engine sets the first shut-off valve to the closed position, sets the second shut-off valve to the open position, and performs the opposite flow connection operation to supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and to the heat exchanger from the cylinder head water block when the engine temperature is lower than the completely-warmed temperature, and the cooling water is requested to be supplied to the heat exchanger.Type: ApplicationFiled: March 26, 2018Publication date: October 4, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio HASEGAWA, Tomohiro SHINAGAWA, Yuji MIYOSHI
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Publication number: 20180283259Abstract: A cooling apparatus of an engine of the invention has a circulation passage for supplying cooling water to head and block passages through a heat exchanger. The apparatus circulates the cooling water through the circulation passage when a second condition is satisfied and then, a first condition is satisfied. The first condition includes a water supply condition that a supply of the cooling water to the exchanger is requested. The second condition includes the water supply condition and a condition that a cooling water temperature is lower than an engine completely-warmed water temperature.Type: ApplicationFiled: March 26, 2018Publication date: October 4, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio HASEGAWA, Yuji Miyoshi, Tomohiro Shinagawa, Yoshiharu Hirata, Ryo Michikawauchi
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Publication number: 20180266547Abstract: An automatic transmission controller is provided, which is capable of reducing occurrence of a shift shock while improving responsiveness of a driving force. An ECU is configured to calculate a target shift time based on an input torque that is input to the automatic transmission when a gear stage is shifted from a current gear stage to a target gear stage spaced two or more stages apart from the current gear stage. The ECU is also configured to: shift the gear stage to an intermediate gear stage between the current gear stage and the target gear stage when the target shift time is not less than a predetermined value; and to shift the gear stage directly to the target gear stage when the target shift time is less than the predetermined value.Type: ApplicationFiled: August 22, 2016Publication date: September 20, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke OTA, Yoshio HASEGAWA
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Publication number: 20180230892Abstract: A cooling system includes: a first coolant passage; a second coolant passage; a pump; a radiator; a third coolant passage; a connection switching mechanism that switches between a forward flow connection state and a reverse flow connection state; a fourth coolant passage; a fifth coolant passage; and a shutoff valve configured to open/shut off the fifth coolant passage. The radiator is disposed at a location at which coolant flowing from a second end of the first coolant passage into a fourth end of the second coolant passage is not cooled in the reverse flow connection state, and coolant flowing out from the second end of the first coolant passage and the fourth end of the second coolant passage is cooled in the forward flow connection state.Type: ApplicationFiled: February 13, 2018Publication date: August 16, 2018Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshio HASEGAWA, Tomohiro SHINAGAWA, Kenichi KUBOTA, Ryo MICHIKAWAUCHI, Yuji MIYOSHI, Yoshiharu HIRATA, Naoto YUMISASHI
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Patent number: 9945453Abstract: An automatic transmission 20 includes: a Simpson type complex planetary gear train 25 including single pinion type first and second planetary gears 21 and 22 and single pinion type third and fourth planetary gears 23 and 24; first through fourth clutches C1 to C4; and first and second brakes B1 and B2. A first carrier 21c of the first planetary gear 21 is coupled to an input shaft 20i. A first ring gear 21r of the first planetary gear 21 is selectively connected to an output shaft 20o by the first clutch C1.Type: GrantFiled: March 27, 2014Date of Patent: April 17, 2018Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takayoshi Kato, Takashi Morimoto, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya, Tomochika Inagaki, Minoru Todo, Shinji Oita, Masaru Morise, Terufumi Miyazaki, Yoshio Hasegawa
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Patent number: 9879762Abstract: A jump shift of an automatic transmission with multiple shift speeds such as, e.g., ten forward speeds involves operation of many engagement elements. The shifting operation for the jump shift is therefore complicated, making it difficult for the automatic transmission to respond quickly. After shifting to the seventh speed as a direct coupling speed is completed by engaging three clutches C1, C3, C4, the remaining other clutch C2 is also engaged at the seventh speed. In the case of a jump shift, e.g., a shift from the seventh speed to the fifth speed, shifting to the fifth speed is completed by disengaging the clutch C1 and performing control to disengage the clutch C3 and to engage a brake B1 with the remaining other clutch C2 kept in the engaged state. This facilitates the shifting operation from the direct coupling speed and allows the automatic transmission to respond quickly.Type: GrantFiled: December 24, 2014Date of Patent: January 30, 2018Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Kutsubo, Nobuyuki Hirai, Masamichi Yamaguchi, Yoshimitsu Hyodo, Kenichi Tsuchida, Terufumi Miyazaki, Youhei Habata, Yoshio Hasegawa
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Publication number: 20170314648Abstract: An automatic transmission, which is configured such that there is no difference of rotation between a third sun gear and an intermediate shaft in a state where a second clutch is brought into a release state and a seventh speed stage is established, is provided. In the automatic transmission, at the time of a gear shift from a tenth speed stage where second and third clutches and a first brake are brought into an engagement state to a seventh speed stage where first, third, and fourth clutches are brought into an engagement state, the fourth clutch is engaged and the first brake is released to establish the seventh speed stage with the second clutch in the engagement state. Then, the first clutch is engaged and the second clutch is released to make transition to the seventh speed stage with the second clutch in the release state.Type: ApplicationFiled: April 19, 2017Publication date: November 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshio HASEGAWA, Masakazu OWATARI, Norihiro TSUKAMOTO
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Publication number: 20170241719Abstract: There is provided a control system of a chemical heat accumulator which enables to facilitate small-sizing of the chemical heat accumulator by carrying out heat release and heat accumulation according to a degree of priority by appropriately selecting a location of carrying out the heat release and heat accumulation on priority basis. A chemical heat accumulator includes a valve mechanism which makes a plurality of reactors communicate separately with a reservoir, and cuts off the plurality of reactors from the reservoir.Type: ApplicationFiled: February 16, 2017Publication date: August 24, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takashi AMANO, Hidefumi AIKAWA, Yoshio HASEGAWA, Jumpei KASHIWAKURA
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Patent number: 9470309Abstract: The present invention executes a desired gear shift of an automatic transmission using gear shift modeling even when there are three control inputs to two target gear shift values. Setting torque share ratio as a constraint on the equation of motion for the automatic transmission is suitable for controlling the transfer of engaging unit torque, which is considered to be difficult in variable speed control, and allows solving of the equation of motion. Viewed from a different angle, because the torque share ratio, which represents the torque transfer, has been set as a constraint, any gear shift pattern can be handled with a single gear shift model.Type: GrantFiled: July 31, 2012Date of Patent: October 18, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
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Publication number: 20160290443Abstract: A jump shift of an automatic transmission with multiple shift speeds such as, e.g., ten forward speeds involves operation of many engagement elements. The shifting operation for the jump shift is therefore complicated, making it difficult for the automatic transmission to respond quickly. After shifting to the seventh speed as a direct coupling speed is completed by engaging three clutches C1, C3, C4, the remaining other clutch C2 is also engaged at the seventh speed. In the case of a jump shift, e.g., a shift from the seventh speed to the fifth speed, shifting to the fifth speed is completed by disengaging the clutch C1 and performing control to disengage the clutch C3 and to engage a brake B1 with the remaining other clutch C2 kept in the engaged state. This facilitates the shifting operation from the direct coupling speed and allows the automatic transmission to respond quickly.Type: ApplicationFiled: December 24, 2014Publication date: October 6, 2016Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki KUTSUBO, Nobuyuki HIRAI, Masamichi YAMAGUCHI, Yoshimitsu HYODO, Kenichi TSUCHIDA, Terufumi MIYAZAKI, Youhei HABATA, Yoshio HASEGAWA
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Patent number: 9454233Abstract: A non-transitory computer readable medium storing a program causing a computer to execute a process is provided. The process includes switching, in a case where at least one of an attitude sensing result and an acceleration sensing result relating to a portable information terminal, the portable information terminal including a touch panel, satisfies a predetermined switching condition, data of interest to a corresponding piece of data among plural pieces of data; and performing, on the data of interest, in a case where at least one of the attitude sensing result and the acceleration sensing result relating to the portable information terminal satisfies a predetermined performing condition, processing corresponding to the performing condition.Type: GrantFiled: April 24, 2014Date of Patent: September 27, 2016Assignee: FUJI XEROX CO., LTD.Inventors: Miaki Sugiyama, Ritsuko Akao, Daisuke Yasuoka, Yoshio Hasegawa, Yuki Shimizu
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Patent number: 9441731Abstract: Torque shares that express an exchange of torque are set as a constraint condition of an equation of motion of an automatic transmission, so it is suitable to control an exchange of torque between engagement devices, which is difficult in shift control, and it is possible to solve the equation of motion. In other words, it is possible to handle any shift pattern with the use of a predetermined shift model. Furthermore, at the time of a shift in which two elements are released and two elements are engaged, a first shift and a second shift in each of which one element is released and one element is engaged are carried out, so three control operation amounts are used in each of the first shift and the second shift, with the result that it is possible to solve the equation of motion.Type: GrantFiled: January 3, 2014Date of Patent: September 13, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
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Patent number: 9410620Abstract: An automatic transmission shifting control including: a shifting target value calculating portion setting shifting target values, torque of a rotary-member on the output shaft side, and rate of change of rotating speed of a rotary-member on the input shaft side; a manipulated calculating portion setting manipulated amounts, a torque of the rotary-member on the input shaft side, a torque capacity of one coupling device engaging for a transmission shifting-action, and torque capacity of other coupling devices releasing the shifting-action; a torque assignment ratio calculating portion setting torque assignment ratios to transfer through the respective coupling devices to engage and release the shifting-action; when a second-shifting-action is required during a preceding first-shifting-action according to a first-shifting-model, the manipulated calculating portion switching the first-shifting-model corresponding to the first-shifting-action to a second-shifting-model corresponding to the second-shifting-action,Type: GrantFiled: November 16, 2012Date of Patent: August 9, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shogo Tsuge, Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
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Patent number: 9388752Abstract: A control system for a vehicle performs torque down control to reduce torque of an engine by cutting off supply of fuel to at least one of the cylinders of the engine during an inertia phase of a power-on upshift. During the torque down control, the throttle opening is reduced to smaller than a throttle opening including an amount by which the throttle opening is increased so as to compensate for a part of the amount of torque reduction, by means of one or more cylinders to which the fuel continues to be supplied.Type: GrantFiled: August 7, 2013Date of Patent: July 12, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Atsuhiko Yokota, Daichi Sakakibara, Yoshio Hasegawa, Keisuke Ota
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Patent number: 9371905Abstract: A torque sharing rate is set as a constraint of a motion equation of an automatic transmission by using a gear shift model in which gear shift target values are set by two values of a torque on a rotating member on an output shaft side and a rotation speed variation of a rotating member on an input shaft side. In addition, a first gear shift according to the gear shift control and a second gear shift that uses a gear shift model in which the gear shift target value is set using only the velocity variation of the rotating member on the input shaft side to enable a speedier gear shift than the first gear shift are selectively executed.Type: GrantFiled: January 13, 2014Date of Patent: June 21, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keisuke Ota, Yoshio Hasegawa, Seiji Masunaga
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Publication number: 20160138683Abstract: An automatic transmission 20 includes: a Simpson type complex planetary gear train 25 including single pinion type first and second planetary gears 21 and 22 and single pinion type third and fourth planetary gears 23 and 24; first through fourth clutches C1 to C4; and first and second brakes B1 and B2. A first carrier 21c of the first planetary gear 21 is coupled to an input shaft 20i. A first ring gear 21r of the first planetary gear 21 is selectively connected to an output shaft 20o by the first clutch C1.Type: ApplicationFiled: March 27, 2014Publication date: May 19, 2016Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takayoshi KATO, Takashi MORIMOTO, Toshihiko AOKI, Hiroshi KATO, Satoru KASUYA, Tomochika INAGAKI, Minoru TODO, Shinji OITA, Masaru MORISE, Terufumi MIYAZAKI, Yoshio HASEGAWA
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Patent number: 9333973Abstract: A speed change control system for reducing shift shocks of clutch-to-clutch shifting is provided. The control system is applied to a vehicle in which a transmission having engagement devices is connected to an output side of a prime mover, and in which a gear stage of the transmission is shifted among a plurality of stages by changing engagement states of the engagement devices. The speed change control system carries out a clutch-to-clutch shifting from a predetermined gear stage to another gear stage by reducing a torque capacity of the predetermined engagement device to be disengaged while increasing a torque capacity of another engagement device to be engaged.Type: GrantFiled: May 8, 2012Date of Patent: May 10, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiji Masunaga, Yoshio Hasegawa, Seiji Kuwahara, Nobufusa Kobayashi
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Patent number: 9315193Abstract: A speed change control system for reducing shift shocks of clutch-to-clutch shifting is provided. The control system is applied to a vehicle in which a transmission having a plurality of engagement devices is connected to an output side of a prime mover, and in which a gear stage of the transmission is shifted among a plurality of stages by changing engagement states of the engagement devices. The speed change control system is configured to carry out a clutch-to-clutch shifting of the gear stage from a predetermined gear stage to another gear stage by gradually reducing a torque capacity of the predetermined engagement device to be disengaged while gradually increasing a torque capacity of another engagement device to be engaged.Type: GrantFiled: May 8, 2012Date of Patent: April 19, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiji Masunaga, Yoshio Hasegawa, Seiji Kuwahara, Nobufusa Kobayashi
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Patent number: 9267420Abstract: An engine cooling control device 100 includes: a housing portion 11A that has passages Pain, PAout1 and PA2; a rotor 12 that is provided in an intermediate portion M and has a rotation center at a position where at least two of distances between openings of the passages PAin, PAout1 and PAout2 opening toward the intermediate portion M and the rotation center are different from each other; a sealing function portion 13A provided between the housing portion 11A and the rotor 12; an elastic member 14 that is provided between the rotor 12 and the sealing function portion 13A and individually biases the sealing function portion 13A toward each opening of the passages PAin, PAout1 and PAout2 with respect to different phases of the rotor 12.Type: GrantFiled: May 24, 2012Date of Patent: February 23, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunihiko Hayashi, Syusaku Sugamoto, Yoshio Hasegawa, Hirokazu Hata