Patents by Inventor Daijiro KAWASAKI

Daijiro KAWASAKI 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: 20230400094
    Abstract: In a control device of an electric vehicle including a motor, driving wheels, a shifting device that is operated by a driver and selectively sets one of two shift positions of a traveling position that generates driving force by transmitting output torque of the motor to the driving wheels, and a non-traveling position that does not generate driving force without transmitting the output torque to the driving wheels, a controller causes the motor to output signal torque that enables the driver to sense a change in a vehicle behavior accompanied with switching of the shift position when the driver switches the shift position.
    Type: Application
    Filed: August 25, 2023
    Publication date: December 14, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daijiro KAWASAKI, Satoshi YAMANAKA, Hideaki OTSUBO
  • Patent number: 11815175
    Abstract: In a control device of an electric vehicle including a motor, driving wheels, a shifting device that is operated by a driver and selectively sets one of two shift positions of a traveling position that generates driving force by transmitting output torque of the motor to the driving wheels, and a non-traveling position that does not generate driving force without transmitting the output torque to the driving wheels, a controller causes the motor to output signal torque that enables the driver to sense a change in a vehicle behavior accompanied with switching of the shift position when the driver switches the shift position.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: November 14, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daijiro Kawasaki, Satoshi Yamanaka, Hideaki Otsubo
  • Patent number: 11440418
    Abstract: A control system for an electric vehicle configured to allow a driver to grasp the situation of the electric vehicle when launching the electric vehicle by operating a brake pedal, and to reduce electric consumption of a motor. A controller controls the motor to generate a signal torque when a brake pedal depressed to generate brake force is returned so as to allow the driver to sense a change in a behavior of the vehicle, and terminate generation of the signal torque by the motor before the brake force is reduced to zero.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Otsubo, Daijiro Kawasaki
  • Publication number: 20200309042
    Abstract: A driving force control apparatus for a vehicle includes an operation amount detection unit; a vehicle speed detection unit; and an electronic control unit. The electronic control unit is configured to determine, when a vehicle speed is lower than a predetermined vehicle speed, a target driving force in a case where an operation amount of an accelerator pedal is in a predetermined range, based on a first provisional target driving force; and determine, when the vehicle speed is equal to or higher than the predetermined vehicle speed, the target driving force in the case where the operation amount of the accelerator pedal is in the predetermined range, based on a second provisional target driving force.
    Type: Application
    Filed: March 20, 2020
    Publication date: October 1, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki Otsubo, Kuninori Kumagai, Hiromitsu Metsugi, Daijiro Kawasaki
  • Publication number: 20200292062
    Abstract: In a control device of an electric vehicle including a motor, driving wheels, a shifting device that is operated by a driver and selectively sets one of two shift positions of a traveling position that generates driving force by transmitting output torque of the motor to the driving wheels, and a non-traveling position that does not generate driving force without transmitting the output torque to the driving wheels, a controller causes the motor to output signal torque that enables the driver to sense a change in a vehicle behavior accompanied with switching of the shift position when the driver switches the shift position.
    Type: Application
    Filed: January 30, 2020
    Publication date: September 17, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daijiro KAWASAKI, Satoshi YAMANAKA, Hideaki OTSUBO
  • Publication number: 20200269703
    Abstract: A control system for an electric vehicle configured to allow a driver to grasp the situation of the electric vehicle when launching the electric vehicle by operating a brake pedal, and to reduce electric consumption of a motor. A controller controls the motor to generate a signal torque when a brake pedal depressed to generate brake force is returned so as to allow the driver to sense a change in a behavior of the vehicle, and terminate generation of the signal torque by the motor before the brake force is reduced to zero.
    Type: Application
    Filed: February 19, 2020
    Publication date: August 27, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideaki OTSUBO, Daijiro KAWASAKI