Patents by Inventor Kazunobu Eritate

Kazunobu Eritate 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).

  • Patent number: 10632991
    Abstract: A vehicle includes an engine, a rotating electric machine, a high-voltage power line, a high-voltage battery, an inverter, a capacitor, an electronic control unit, a low-voltage battery, an alternator, and a low-voltage power line. The capacitor is connected to the high-voltage power line. The electronic control unit is configured to control the engine such that the engine is operated and the alternator supplies electric power to the low-voltage power line in a case where the possibility of the occurrence of a collision of the vehicle is detected. The electronic control unit is configured to perform control such that the capacitor discharges a residual electric charge in a case where the possibility of the occurrence of the collision of the vehicle is detected or in a case where the occurrence of the collision of the vehicle is detected.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: April 28, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomokazu Yamauchi, Koichi Nakae, Ryouji Hironaka, Kazunobu Eritate, Takeshi Nozaki
  • Patent number: 10363924
    Abstract: A vehicle includes an engine, an automatic transmission, a second clutch for engine disconnection, a rotating electric machine, a first clutch for rotating electric machine separation, and an electronic control unit. The electronic control unit switches the first clutch from a release state to an engagement state in a case where a collision of the vehicle occurs, the first clutch is in the release state, and a rotation speed of the rotating electric machine is higher than an input shaft rotation speed of the automatic transmission. In a case where the collision of the vehicle occurs, the first clutch is in the release state, and the rotation speed of the rotating electric machine is lower than the input shaft rotation speed of the automatic transmission, the first clutch is maintained in the release state.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: July 30, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomokazu Yamauchi, Koichi Nakae, Ryouji Hironaka, Kazunobu Eritate, Takeshi Nozaki
  • Publication number: 20170232957
    Abstract: A vehicle includes an engine, an automatic transmission, a second clutch for engine disconnection, a rotating electric machine, a first clutch for rotating electric machine separation, and an electronic control unit. The electronic control unit switches the first clutch from a release state to an engagement state in a case where a collision of the vehicle occurs, the first clutch is in the release state, and a rotation speed of the rotating electric machine is higher than an input shaft rotation speed of the automatic transmission. In a case where the collision of the vehicle occurs, the first clutch is in the release state, and the rotation speed of the rotating electric machine is lower than the input shaft rotation speed of the automatic transmission, the first clutch is maintained in the release state.
    Type: Application
    Filed: February 8, 2017
    Publication date: August 17, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomokazu YAMAUCHI, Koichi NAKAE, Ryouji HIRONAKA, Kazunobu ERITATE, Takeshi NOZAKI
  • Publication number: 20170232962
    Abstract: A vehicle includes an engine, a rotating electric machine, a high-voltage power line, a high-voltage battery, an inverter, a capacitor, an electronic control unit, a low-voltage battery, an alternator, and a low-voltage power line. The capacitor is connected to the high-voltage power line. The electronic control unit is configured to control the engine such that the engine is operated and the alternator supplies electric power to the low-voltage power line in a case where the possibility of the occurrence of a collision of the vehicle is detected. The electronic control unit is configured to perform control such that the capacitor discharges a residual electric charge in a case where the possibility of the occurrence of the collision of the vehicle is detected or in a case where the occurrence of the collision of the vehicle is detected.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 17, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tomokazu YAMAUCHI, Koichi NAKAE, Ryouji HIRONAKA, Kazunobu ERITATE, Takeshi NOZAKI
  • Publication number: 20130253749
    Abstract: A hybrid vehicle generates vehicle driving force by the sum of a direct torque mechanically transmitted directly from an engine to a drive shaft through a power split device and an output torque of an MG. A PM-ECU selectively applies a running mode in which outputs of the engine and the MG are controlled such that the requested driving force for the entire vehicle is exerted on the drive shaft; and an S/D mode in which the requested driving force is exerted on the drive shaft by the direct torque in the state where the output torque of the MG is set at zero. An MG-ECU stops the operation of a power converter for controlling the output of the MG when the S/D mode is applied.
    Type: Application
    Filed: December 27, 2010
    Publication date: September 26, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhito Hayashi, Mikio Yamazaki, Kazunobu Eritate
  • Patent number: 8042634
    Abstract: The rotating shaft of the motor is connected to and disconnected from the first coupled rotating shaft, the crankshaft of the engine, and the drive shaft is connected to and disconnected from the second coupled rotating shaft and the third coupled rotating shaft. Thereby, the connection state when a power is output to the drive shaft can be increased and the power to the drive shaft can be output in a more efficient connection state in comparison with only connecting and disconnecting the rotating shaft of the motor to and from the first coupled rotating shaft and the crankshaft of the engine.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: October 25, 2011
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Kazunobu Eritate, Tomokazu Yamauchi, Shoichi Sasaki, Yuki Tojima, Takahiro Misu, Masami Osawa
  • Publication number: 20090242287
    Abstract: The rotating shaft of the motor is connected to and disconnected from the first coupled rotating shaft, the crankshaft of the engine, and the drive shaft is connected to and disconnected from the second coupled rotating shaft and the third coupled rotating shaft. Thereby, the connection state when a power is output to the drive shaft can be increased and the power to the drive shaft can be output in a more efficient connection state in comparison with only connecting and disconnecting the rotating shaft of the motor to and from the first coupled rotating shaft and the crankshaft of the engine.
    Type: Application
    Filed: June 21, 2007
    Publication date: October 1, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazunobu Eritate, Tomokazu Yamauchi, Shoichi Sasaki, Yuki Tojima, Takahiro Misu, Masami Osawa
  • Publication number: 20060047395
    Abstract: Provided are a transmission control method for a mechanical transmission, capable of shortening a gear shift time without undergoing a shock attributed to gear disengagement, and an apparatus therefor. The transmission control apparatus comprises engine torque control means (S10) for controlling an engine torque generated by an internal combustion engine so that the value of a transfer torque of a friction clutch is 0 or near 0 when a gear shift of the mechanical transmission is required, gear shift allowing means (S12) for aloowing the gear shift of the mechanical transmission when the engine torque is controlled by the engine torque control means so that the value of the transfer torque is 0 or near 0, and gear shift executing means (S16) for disengaging and engaging gears with the clutch kept connected when the gear shift is allowed by the gear shift allowing means.
    Type: Application
    Filed: November 7, 2003
    Publication date: March 2, 2006
    Applicant: Mitsubishi Fuso Truck And Bus Corporation
    Inventors: Kouichi Ikeya, Kazunobu Eritate, Toshikuni Shirasawa