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).

  • Publication number: 20150276051
    Abstract: 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: Application
    Filed: November 16, 2012
    Publication date: October 1, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shogo Tsuge, Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20150260280
    Abstract: 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: Application
    Filed: January 3, 2014
    Publication date: September 17, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji MASUNAGA, Yoshio HASEGAWA, Keisuke OTA
  • Publication number: 20150252891
    Abstract: In a gear shift control apparatus for a vehicle, since a torque sharing rate is set as a constraint for a motion equation for an automatic transmission, suitable control in torque delivery, which is considered difficult in gear shift control, can be implemented and also the motion equation can be solved. Furthermore, when at least four control operation amounts must be determined in order to achieve two gear shift target values, another engaging device is classified into any of an engaging-side clutch and a releasing-side clutch depending on how another clutch torque acts on progress of a gear shift, hence in addition to achieving torque sharing in accordance with a torque sharing rate between the engaging-side clutch and the releasing-side clutch, torque sharing among a plurality of engaging devices classified into a same side can be arbitrarily set. As a result, the respective control operation amounts can be determined.
    Type: Application
    Filed: January 3, 2014
    Publication date: September 10, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20150185975
    Abstract: An information processing device includes a position acquisition unit and an adding unit. The position acquisition unit acquires a first position and a second position specified on an image of a screen by a user. The adding unit is configured so that, in a case in which the user is in the middle of continuously specifying the first position for a set of a plurality of data selected by the user, and a position associated with other data besides the data set is acquired as a second position, the adding unit adds the other data to the data set.
    Type: Application
    Filed: July 14, 2014
    Publication date: July 2, 2015
    Applicant: FUJI XEROX CO., LTD
    Inventors: Yoshio HASEGAWA, Daisuke YASUOKA, Miaki SUGIYAMA, Ritsuko AKAO, Yuki SHIMIZU
  • Publication number: 20150184599
    Abstract: 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: Application
    Filed: August 7, 2013
    Publication date: July 2, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsuhiko Yokota, Daichi Sakakibara, Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20150184740
    Abstract: 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: Application
    Filed: July 31, 2012
    Publication date: July 2, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20150160732
    Abstract: 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: Application
    Filed: April 24, 2014
    Publication date: June 11, 2015
    Applicant: FUJI XEROX CO., LTD.
    Inventors: Miaki SUGIYAMA, Ritsuko AKAO, Daisuke YASUOKA, Yoshio HASEGAWA, Yuki SHIMIZU
  • Publication number: 20150120155
    Abstract: 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: Application
    Filed: May 8, 2012
    Publication date: April 30, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji Masunaga, Yoshio Hasegawa, Seiji Kuwahara, Nobufusa Kobayashi
  • Patent number: 8977452
    Abstract: In a vehicle control, an automatic transmission is shifted using a predetermined shift model, which determines control operation amounts for achieving shift target values, by setting the shift target values on the basis of a torque on an output shaft-side rotating member and a speed variation amount of an input shaft-side rotating member, setting the control operation amounts on the basis of a torque on the input shaft-side rotating member, a torque capacity of an engaged-side engagement device during shifting and a torque capacity of a released-side engagement device during shifting and setting torque shares of a transmission torque between the engaged-side engagement device and the released-side engagement device during shifting when the transmission torque is converted to the torque on the input shaft-side rotating member, and timing at which the torque shares are varied is changed on the basis of a shift pattern.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: March 10, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Seiji Masunaga, Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20150051047
    Abstract: A control device of a vehicle drive device includes an engine, a supercharger pressurizing intake air of the engine, and an automatic transmission outputting power of the engine to drive wheels. The control device makes a temporal rise rate of an engine torque larger from a predetermined time point during an upshift of the automatic transmission, the upshift being a shift with the engine torque after end of the upshift made larger than that before start of the upshift, the predetermined time point being made earlier when a response delay of supercharging by the supercharger becomes larger. During the upshift, the engine torque is raised in accordance with an assumed progress of the upshift from the predetermined time point and the assumed progress of the upshift being an assumption that the upshift does not progress until the predetermined time point and the upshift starts progressing from the predetermined time point.
    Type: Application
    Filed: December 9, 2011
    Publication date: February 19, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Ota, Yoshio Hasegawa
  • Patent number: 8935064
    Abstract: A control device of a vehicular automatic transmission determines, during shifting to a first target gear position, whether the transmission should be shifted to a second target gear position that is remote from the current gear position than the first target gear position, and determines whether a gearshift to the first target gear position was executed during shifting to a third target gear position. If it is determined that the transmission should be shifted to the second target gear position during a multiple gearshift to the first target gear position which is started during shifting to the third target gear position, a multiple gearshift to the second target gear position is inhibited. If it is determined that the transmission should be shifted to the second target gear position during a single gearshift to the first target gear position, the multiple gearshift to the second target gear position is permitted.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: January 13, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobufusa Kobayashi, Yoshio Hasegawa
  • Patent number: 8881693
    Abstract: A cooling system is incorporated into an engine cooling circuit including a pump for circulating a coolant of an engine and a radiator for cooling the coolant of the engine. The cooling system includes a first passage portion provided between the engine and a coolant outlet of the pump; a second passage portion provided between the engine and an coolant inlet of the pump, a rotary valve disc interposed in the passage portions and being rotatable so as to simultaneously control the coolant flowing through the first passage portion and the coolant flowing through the second passage portion.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: November 11, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kunihiko Hayashi, Syusaku Sugamoto, Yoshio Hasegawa, Hirokazu Hata
  • Publication number: 20140326199
    Abstract: 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: Application
    Filed: May 24, 2012
    Publication date: November 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kunihiko Hayashi, Syusaku Sugamoto, Yoshio Hasegawa, Hirokazu Hata
  • Publication number: 20140330492
    Abstract: A vehicle engine control device in a vehicle including an engine, a supercharger pressurizing intake air of the engine, a supercharging pressure adjustment mechanism adjusting a supercharging pressure of the supercharger, and a stepped automatic transmission outputting power of the engine to drive wheels provides supercharging pressure suppression control of actuating the supercharging pressure adjustment mechanism so as to suppress a rise in the supercharging pressure in a process of a rise in the supercharging pressure of the supercharger, the supercharging pressure suppression control is limited during a shift of the automatic transmission as compared to after the shift of the automatic transmission.
    Type: Application
    Filed: December 9, 2011
    Publication date: November 6, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Hasegawa, Keisuke Ota
  • Publication number: 20140200778
    Abstract: 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: Application
    Filed: January 13, 2014
    Publication date: July 17, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke OTA, Yoshio HASEGAWA, Seiji MASUNAGA
  • Patent number: 8738253
    Abstract: An ECU controls an automatic transmission that can be manually shifted. The ECU executes a program that includes i) the step of, when there are a plurality of allowed gears that are allowed at the time of a downshift operation, continuously determining whether the engine speed NE after a downshift will be in a preset overspeed region for each allowed gear when the second and subsequent allowed gears are lower than an output gear, and when there is an allowed gear that will result in the engine speed NE being in the overspeed region, ii) the step of cancelling that allowed gear. Thus this control appropriately suppresses overspeeding of the engine while executing a manual shift in response to an operation by the driver without bothering the driver.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 27, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Ichiro Kitaori, Hiroyuki Sawada, Yoshio Hasegawa, Kazuyuki Shiiba, Toshihiro Fukumasu, Nobufusa Kobayashi, Seiji Kuwahara
  • Publication number: 20140046560
    Abstract: In a vehicle control, an automatic transmission is shifted using a predetermined shift model, which determines control operation amounts for achieving shift target values, by setting the shift target values on the basis of a torque on an output shaft-side rotating member and a speed variation amount of an input shaft-side rotating member, setting the control operation amounts on the basis of a torque on the input shaft-side rotating member, a torque capacity of an engaged-side engagement device during shifting and a torque capacity of a released-side engagement device during shifting and setting torque shares of a transmission torque between the engaged-side engagement device and the released-side engagement device during shifting when the transmission torque is converted to the torque on the input shaft-side rotating member, and timing at which the torque shares are varied is changed on the basis of a shift pattern.
    Type: Application
    Filed: August 5, 2013
    Publication date: February 13, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji MASUNAGA, Yoshio HASEGAWA, Keisuke OTA
  • Publication number: 20140007824
    Abstract: A cooling system is incorporated into an engine cooling circuit including a pump for circulating a coolant of an engine and a radiator for cooling the coolant of the engine. The cooling system includes a first passage portion provided between the engine and a coolant outlet of the pump; a second passage portion provided between the engine and an coolant inlet of the pump, a rotary valve disc interposed in the passage portions and being rotatable so as to simultaneously control the coolant flowing through the first passage portion and the coolant flowing through the second passage portion.
    Type: Application
    Filed: March 18, 2011
    Publication date: January 9, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kunihiko Hayashi, Syusaku Sugamoto, Yoshio Hasegawa, Hirokazu Hata
  • Patent number: 8392076
    Abstract: In a control of a vehicular automatic transmission, an engaging device provided in a power transmission path between an engine and driving wheels is brought into a slipping state or a release state when a certain neutral control condition is satisfied while a shift lever is placed in a running position, the engaging device is engaged so as to increase a torque transmission capacity thereof when a certain neutral control cancellation condition is satisfied during neutral control under which the engaging device is in the slipping state or the release state, and an engaging pressure of the engaging device is held at a constant pressure level for a given period of time when an accelerator pedal is depressed while the engaging device is engaged so as to increase the torque transmission capacity thereof.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: March 5, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Nobufusa Kobayashi, Yoshio Hasegawa, Naoto Komeno, Norihiro Tsukamoto
  • Patent number: 8366587
    Abstract: A control device of a vehicle drive-train system including an engine, an electronic throttle valve, an automatic transmission having a manual shift mode, a torque converter provided between the automatic transmission and the engine, and a lock-up clutch operable to directly connect an input member and an output member of the torque converter with each other includes a blipping control device that performs blipping control for temporarily increasing the output rotational speed of the engine by of the electronic throttle valve, when a power-off downshift is performed while the automatic transmission is in the manual shift mode; and a lock-up control device that engages or partially engages the lock-up clutch, based on a difference between a rotational speed of the output member of the torque converter and a rotational speed of the input member thereof, which the difference is reduced after the blipping control is started.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 5, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Junichi Inoue, Hitoshi Matsunaga, Yoshio Hasegawa