Patents by Inventor Tsutomu KAWANISHI

Tsutomu KAWANISHI 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: 20230018675
    Abstract: The braking force control device detects an impossible state where one or some of the actuators are temporarily unable to generate a negative driving force, and a predictive state where one or some of the actuators are predicted to become unable to generate a negative driving force. Every time the coasting state occurs before establishment of the impossible state and after establishment of the predictive state, the braking force control device gradually increases the negative driving force generated by the corresponding one or ones of the actuators. Even when the coasting state occurs in the impossible state, the braking force control device does not cause the corresponding one or ones of the actuators to generate a driving force. Every time the coasting state occurs after the impossible state, the braking force control device gradually decreases the negative driving force generated by the corresponding one or ones of the actuators.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Applicant: OYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsutomu KAWANISHI, Shun SATO, Masahiro NISHIU
  • Patent number: 11485363
    Abstract: The braking force control device detects an impossible state where one or some of the actuators are temporarily unable to generate a negative driving force, and a predictive state where one or some of the actuators are predicted to become unable to generate a negative driving force. Every time the coasting state occurs before establishment of the impossible state and after establishment of the predictive state, the braking force control device gradually increases the negative driving force generated by the corresponding one or ones of the actuators. Even when the coasting state occurs in the impossible state, the braking force control device does not cause the corresponding one or ones of the actuators to generate a driving force. Every time the coasting state occurs after the impossible state, the braking force control device gradually decreases the negative driving force generated by the corresponding one or ones of the actuators.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 1, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsutomu Kawanishi, Shun Sato, Masahiro Nishiu
  • Publication number: 20200339122
    Abstract: The braking force control device detects an impossible state where one or some of the actuators are temporarily unable to generate a negative driving force, and a predictive state where one or some of the actuators are predicted to become unable to generate a negative driving force. Every time the coasting state occurs before establishment of the impossible state and after establishment of the predictive state, the braking force control device gradually increases the negative driving force generated by the corresponding one or ones of the actuators. Even when the coasting state occurs in the impossible state, the braking force control device does not cause the corresponding one or ones of the actuators to generate a driving force. Every time the coasting state occurs after the impossible state, the braking force control device gradually decreases the negative driving force generated by the corresponding one or ones of the actuators.
    Type: Application
    Filed: March 10, 2020
    Publication date: October 29, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsutomu Kawanishi, Shun Sato, Masahiro Nishiu
  • Patent number: 10571021
    Abstract: In a control device of a vehicle power transmission device, a first meshing clutch has a drive power source side meshing member coupled to a power transmission member, an auxiliary drive wheel side meshing member coupled to the power transmission member, and an actuator engaging or releasing the drive power source side meshing member and the auxiliary drive wheel side meshing member, and when a rotation speed difference between a rotation speed of the drive power source side meshing member and a rotation speed of the auxiliary drive wheel side meshing member is larger than a predefined value at the time when a first meshing clutch is brought into an engaged state, a clamping pressure on a transmission belt is increased as compared to when a rotation speed difference is equal to or less than a predefined value.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: February 25, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junichi Aoyama, Masayuki Tsujita, Tsutomu Kawanishi, Taichi Washio
  • Publication number: 20190145515
    Abstract: In a control device of a vehicle power transmission device, a first meshing clutch has a drive power source side meshing member coupled to a power transmission member, an auxiliary drive wheel side meshing member coupled to the power transmission member, and an actuator engaging or releasing the drive power source side meshing member and the auxiliary drive wheel side meshing member, and when a rotation speed difference between a rotation speed of the drive power source side meshing member and a rotation speed of the auxiliary drive wheel side meshing member is larger than a predefined value at the time when a first meshing clutch is brought into an engaged state, a clamping pressure on a transmission belt is increased as compared to when a rotation speed difference is equal to or less than a predefined value.
    Type: Application
    Filed: November 7, 2018
    Publication date: May 16, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junichi AOYAMA, Masayuki TSUJITA, Tsutomu KAWANISHI, Taichi WASHIO
  • Patent number: 9845615
    Abstract: A mounting structure of a decorative cap includes a door panel, a cylinder lock fixed to the door panel, and a decorative cap member. A protrusion portion of a cylinder lock protruding 5 from the door panel is covered with the decorative cap member. The decorative cap member includes a water guide channel guiding infiltrated water from a gap between a key insertion opening and a surface of the cylinder lock, to a water ejection opening which is opened on a peripheral wall. The key insertion opening 10 exposes a key insertion section of the cylinder lock.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: December 19, 2017
    Assignee: ALPHA CORPORATION
    Inventors: Shinji Ichikawa, Tsutomu Kawanishi
  • Patent number: 9683659
    Abstract: When an alternator load torque Talt is larger than a threshold ?, a lockup clutch is released. Thus, a deceleration G can be restrained from becoming too large due to the alternator load torque Talt. Besides, the threshold ? is changed in accordance with a speed ratio ? of a continuously variable transmission. Thus, the deceleration G can be favorably controlled within a predetermined range. For example, in a vehicle state where a deceleration is unlikely to be achieved due to the smallness of the speed ratio ?, the threshold ? is large. Therefore, the lockup clutch is unlikely to be released, and the deceleration G is likely to be secured.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: June 20, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taichi Washio, Tsutomu Kawanishi
  • Publication number: 20170058563
    Abstract: A mounting structure of a decorative cap includes a door panel, a cylinder lock fixed to the door panel, and a decorative cap member. A protrusion portion of a cylinder lock protruding from the door panel is covered with the decorative cap member. The decorative cap member includes a water guide channel guding infiltrated water from a gap between a key insertion opening and a surface of the cylinder lock, to a water ejection opening which is opened on a peripheral wall. The key insertion opening exposes a key insertion section of the cylinder lock.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 2, 2017
    Inventors: Shinji ICHIKAWA, Tsutomu KAWANISHI
  • Publication number: 20160245401
    Abstract: When an alternator load torque Talt is larger than a threshold ?, a lockup clutch is released. Thus, a deceleration G can be restrained from becoming too large due to the alternator load torque Talt. Besides, the threshold ? is changed in accordance with a speed ratio ? of a continuously variable transmission. Thus, the deceleration G can be favorably controlled within a predetermined range. For example, in a vehicle state where a deceleration is unlikely to be achieved due to the smallness of the speed ratio ?, the threshold ? is large. Therefore, the lockup clutch is unlikely to be released, and the deceleration G is likely to be secured.
    Type: Application
    Filed: February 17, 2016
    Publication date: August 25, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Taichi WASHIO, Tsutomu KAWANISHI