Patents by Inventor Terufumi Miyazaki

Terufumi Miyazaki 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: 20200164855
    Abstract: If the destination has not been input, it is judged whether the present location is on the expressway (step S32). If the judgement result of the step S32 is positive, it is judged whether or not the actual SOC is less than or equal to the threshold TH2 (step S34). If the judgement result of the step S34 is positive, the restoring control is executed (step S36). Subsequent to the step S34 or S36, it is judged whether or not the vehicle has reached the scheduled exit (step S38). If the judgement result of the step S38 is positive, it is judged whether or not the actual SOC is greater than or equal to the SOC_T2 (step S42). If the judgement result of the step S42 is positive, the maintaining control is executed (step S44).
    Type: Application
    Filed: September 23, 2019
    Publication date: May 28, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroto HASHIMOTO, Terufumi MIYAZAKI, Tomohito ONO, Yosuke SUZUKI, Daisuke SHIRAI
  • Publication number: 20200139841
    Abstract: A charge control system for a vehicle, which is configured to control charging of a power storage device, includes a user detector that determines whether a user is present within a predetermined range relative to the vehicle, and a vehicle electronic control unit configured to permit the power storage device to be charged with electric power generated by the generator, in addition to the power from the outside of the vehicle, during external charging, when the user detector determines that the user is present within the predetermined range. The vehicle ECU is configured to inhibit power generation by the generator during external charging when the user detector determines that the user is not present within the predetermined range.
    Type: Application
    Filed: October 8, 2019
    Publication date: May 7, 2020
    Applicant: TOYOTA JISOSHA KABUSHIKI KAISHA
    Inventors: Tomohito ONO, Terufumi Miyazaki, Yosuke Suzuki, Hiroto Hashimoto
  • Publication number: 20200063833
    Abstract: A first carrier of a first planetary gear is coupled to an input member. A second rotary element of a fourth planetary gear is coupled to an output member. A first ring gear of the first planetary gear, a second sun gear of a second planetary gear, and a first rotary element of the fourth planetary gear are coupled together. A second carrier of the second planetary gear and a third carrier of a third planetary gear are coupled together. A third ring gear of the third planetary gear and a third rotary element of the fourth planetary gear are coupled together. A first engagement element engaging two of the second sun gear, the second carrier, and a second ring gear of the second planetary gear. A fourth engagement element engaging the second ring gear of the second planetary gear and a third sun gear of the third planetary gear.
    Type: Application
    Filed: December 5, 2017
    Publication date: February 27, 2020
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIK KAISHA
    Inventors: Takayoshi KATO, Toshihiko AOKI, Hiroshi KATO, Terufumi MIYAZAKI
  • Patent number: 9945453
    Abstract: 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: Grant
    Filed: March 27, 2014
    Date of Patent: April 17, 2018
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayoshi Kato, Takashi Morimoto, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya, Tomochika Inagaki, Minoru Todo, Shinji Oita, Masaru Morise, Terufumi Miyazaki, Yoshio Hasegawa
  • Patent number: 9902389
    Abstract: A vehicle drive control device performs acceleration/deceleration running by alternately repeating acceleration running and deceleration running, wherein it compares between an efficiency of the motor at a first operation point determined by a rotation speed and a torque of a motor and an efficiency of the motor at a second operation point for outputting a higher torque than the first operation point, and if a difference between the efficiencies is greater than a determination value, the acceleration running at the second operation point and the deceleration running being repeated, the second operation point being set a maximum efficiency line of the motor with the rotation speed and the torque of the motor as parameters to perform the acceleration running, and if acceleration during the acceleration running becomes larger than an acceleration limit value, a rotating machine acting at least as an electric generator generating electricity to charge a battery.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: February 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Terufumi Miyazaki, Yukihiko Ideshio, Toshihiko Kamiya, Shingo Eto, Hironori Asaoka, Yasuyuki Kato, Seigo Kanou, Makoto Iwanaka
  • Patent number: 9879762
    Abstract: 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: Grant
    Filed: December 24, 2014
    Date of Patent: January 30, 2018
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Kutsubo, Nobuyuki Hirai, Masamichi Yamaguchi, Yoshimitsu Hyodo, Kenichi Tsuchida, Terufumi Miyazaki, Youhei Habata, Yoshio Hasegawa
  • Patent number: 9605605
    Abstract: Provided is a vehicle control apparatus. To start an engine by a motor-generator under the state that a vehicle is stopped, the vehicle control apparatus synchronizes a rotation of the engine with a rotation of the motor-generator at a synchronous rotational speed lower than a target rotational speed to start the engine, and increases a rotational speed of the engine by the motor-generator from the synchronous rotational to the target rotational speed, and starts the engine at the target rotational speed.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shingo Eto, Yousuke Michikoshi
  • Publication number: 20160341289
    Abstract: An automatic transmission includes a single-pinion first planetary gear, a double-pinion second planetary gear, a single-pinion third planetary gear, a single-pinion fourth planetary gear, clutches C1, C2, C3, and C4, and brakes B1 and B2. First to ninth forward speeds and a reverse speed are established by engaging three of the clutches C1 to C4 and the brakes B1 and B2 and disengaging the remaining three clutches and brakes.
    Type: Application
    Filed: January 13, 2015
    Publication date: November 24, 2016
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayoshi Kato, Takashi Morimoto, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya, Terufumi Miyazaki, Masaru Morise, Shinji Oita
  • Publication number: 20160290443
    Abstract: 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: Application
    Filed: December 24, 2014
    Publication date: October 6, 2016
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki KUTSUBO, Nobuyuki HIRAI, Masamichi YAMAGUCHI, Yoshimitsu HYODO, Kenichi TSUCHIDA, Terufumi MIYAZAKI, Youhei HABATA, Yoshio HASEGAWA
  • Patent number: 9458914
    Abstract: An automatic transmission that shifts power applied to an input member and outputs the shifted power to an output member, the automatic transmission including a first planetary gear mechanism, a third planetary gear mechanism, a compound planetary gear mechanism, a first clutch, a second clutch, a third clutch, a fourth clutch a first brake, and a second brake.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: October 4, 2016
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayoshi Kato, Toshihiko Aoki, Hiroshi Kato, Nobutada Sugiura, Takashi Morimoto, Nobukazu Ike, Satoru Kasuya, Terufumi Miyazaki, Masaru Morise, Shinji Oita
  • Patent number: 9457667
    Abstract: A vehicle control device includes: an engine and a first motor generator from both of which a driving force for traveling is output to drive wheels; and an electricity storage device that storages electric power for driving the first motor generator. When a vehicle weight is in a reference state at a time of deceleration braking, the first motor generator is mainly caused, out of the first motor generator and the engine, to generate a braking force, and when the vehicle weight is greater than that in the reference state, the engine is mainly caused, out of the first motor generator and the engine, to generate the braking force. Thus, a sufficient braking force can be obtained while an input limit of the electricity storage device is prevented from being reached.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: October 4, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shingo Eto, Yousuke Michikoshi, Akihiro Sato
  • Patent number: 9440639
    Abstract: Disclosed is a control device for a vehicle including an engine and a motor generator both for supplying a travel driving force to a driving wheel. The control device causes the engine to stop while the vehicle is traveling on a descending slope under constant vehicle speed control where the vehicle is controlled to travel at a predetermined vehicle speed. That reduces a load on a brake device.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: September 13, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shingo Eto, Yousuke Michikoshi, Akihiro Sato
  • Patent number: 9421964
    Abstract: A control apparatus for a hybrid vehicle is provided with an engine, an electric motor, and a clutch disposed in a power transmitting path between the engine and the electric motor, a drive mode of the hybrid vehicle being switched on the basis of a required drive force of the hybrid vehicle, between a first drive mode in which said engine is placed in an operated state while said clutch is placed in an engaged state, and a second drive mode in which said electric motor is exclusively used as a drive power source to run the hybrid vehicle while said engine is placed in a rest state and while said clutch is placed in a released state; and a range in which said second drive mode is established being narrower when a temperature of said clutch is comparatively high, than when said temperature is comparatively low.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: August 23, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shintaro Matsutani, Yousuke Michikoshi
  • Publication number: 20160138683
    Abstract: 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: Application
    Filed: March 27, 2014
    Publication date: May 19, 2016
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayoshi KATO, Takashi MORIMOTO, Toshihiko AOKI, Hiroshi KATO, Satoru KASUYA, Tomochika INAGAKI, Minoru TODO, Shinji OITA, Masaru MORISE, Terufumi MIYAZAKI, Yoshio HASEGAWA
  • Patent number: 9266530
    Abstract: A control device of a hybrid vehicle including an electric motor and an engine as drive force sources, the hybrid vehicle being configured to execute engine running using the engine as the drive force source for running and motor running using the electric motor as the drive force source for running with the engine stopped, the control device having a predefined running performance oriented running mode such as a sport running mode and a predefined large drive force running mode with a lower requirement degree of start acceleration performance as compared to the running performance oriented running mode, in the predefined running performance oriented running mode, the motor running being inhibited, the engine running being performed in an operation range in which the motor running is normally performed, and the engine being retained in an operating state at the time of vehicle stop, and in the predefined large drive force running mode, the motor running being inhibited, the engine running being performed in t
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: February 23, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shingo Eto, Yousuke Michikoshi, Akihiro Sato
  • Publication number: 20150377326
    Abstract: An automatic transmission that shifts power applied to an input member and outputs the shifted power to an output member, the automatic transmission including a first planetary gear mechanism, a third planetary gear mechanism, a compound planetary gear mechanism, a first clutch, a second clutch, a third clutch, a fourth clutch a first brake, and a second brake.
    Type: Application
    Filed: March 27, 2014
    Publication date: December 31, 2015
    Inventors: Takayoshi KATO, Toshihiko AOKI, Hiroshi KATO, Nobutada SUGIURA, Takashi MORIMOTO, Nobukazu IKE, Satoru KASUYA, Terufumi MIYAZAKI, Masaru MORISE, Shinji OITA
  • Publication number: 20150369342
    Abstract: An automatic transmission that shifts power applied to an input member and outputs the shifted power to an output member, the automatic transmission including a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a fourth planetary gear mechanism, a first coupling element, a second coupling element, a third coupling element, a fourth coupling element, a first clutch, a second clutch, a third clutch, a fourth clutch, a first brake and a second brake.
    Type: Application
    Filed: March 27, 2014
    Publication date: December 24, 2015
    Inventors: Takayoshi KATO, Toshihiko AOKI, Hiroshi KATO, Nobutada SUGIURA, Takashi MORIMOTO, Nobukazu IKE, Satoru KASUYA, Terufumi MIYAZAKI, Masaru MORISE, Shinji OITA
  • Patent number: 9180873
    Abstract: It is provided a control device of a hybrid vehicle having an engine, an electric motor, a clutch disposed in a power transmission path between the engine and the electric motor, and a hydraulic power transmission device with a lockup clutch disposed in a power transmission path between the electric motor and drive wheels, the control device being configured to engage the clutch and provide slip control of the lockup clutch when the engine is started from motor running using the electric motor, and to lower an engagement pressure of the lockup clutch as compared to the case of an engine start caused by an acceleration request from a driver if the start of the engine is an engine start caused by a request from a hybrid system.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: November 10, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Terufumi Miyazaki, Yukihiko Ideshio, Toshihiko Kamiya, Shingo Eto, Hironori Asaoka
  • Patent number: 9169786
    Abstract: A control device of a vehicle engine comprises: an electric motor rotationally driving an engine to start the engine; a variable valve timing mechanism varying a valve timing of an intake valve of the engine; and an intermediate lock mechanism mechanically locking the valve timing at an intermediate position between a most delayed position and a most advanced position of the valve timing, if an output limitation of the electric motor is predicted at restart of the engine, the valve timing at the time of stop of the engine being locked at the intermediate lock position by the intermediate lock mechanism.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: October 27, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Terufumi Miyazaki, Yukihiko Ideshio, Toshihiko Kamiya, Shingo Eto, Hironori Asaoka, Yasuyuki Kato
  • Patent number: 9162676
    Abstract: A control device of a vehicle comprises: an electric motor connected to a drive force transmission path through a first connecting/disconnecting device connecting/interrupting power transmission; and an engine connected to the electric motor through a second connecting/disconnecting device connecting/interrupting power transmission, the control device of a vehicle disconnecting the first connecting/disconnecting device or the second connecting/disconnecting device during running to perform coasting with the engine separated, when performing coasting, a determination whether a vehicle speed is equal to or lower than a predetermined determination vehicle speed implemented, the engine separated by disconnecting the second connecting/disconnecting device with the first connecting/disconnecting device kept connected at a low vehicle speed where the vehicle speed is equal to or lower than the predetermined determination vehicle speed, and the engine separated by disconnecting the first connecting/disconnecting devi
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: October 20, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shingo Eto, Yuji Inoue, Yukihiko Ideshio, Yousuke Michikoshi, Terufumi Miyazaki, Akihiro Sato