Patents by Inventor Hirofumi FUJISHITA

Hirofumi FUJISHITA 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: 11752999
    Abstract: A vehicle control apparatus has a steering wheel 6, an engine 4 for outputting a driving force of a vehicle 1, a brake apparatus 16 capable of applying different braking forces to left and right wheels, and a PCM 14 including a processor and the like. When executing vehicle yaw control, which controls the brake apparatus 16 to apply to the vehicle 1 a yaw moment in the direction opposite to the yaw rate generated in the vehicle 1, after executing vehicle attitude control for reducing an output torque of the engine 4 based on a turning operation of the steering wheel 6, when the control amount of the vehicle attitude control is large, the PCM 14 increases the control amount of the vehicle yaw control compared to when the control amount of the vehicle attitude control is not large.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: September 12, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Yasunori Takahara, Kazunori Tsumura, Daisuke Umetsu, Hirofumi Fujishita
  • Publication number: 20210146914
    Abstract: A vehicle control apparatus has a steering wheel 6, an engine 4 for outputting a driving force of a vehicle 1, a brake apparatus 16 capable of applying different braking forces to left and right wheels, and a PCM 14 including a processor and the like. When executing vehicle yaw control, which controls the brake apparatus 16 to apply to the vehicle 1 a yaw moment in the direction opposite to the yaw rate generated in the vehicle 1, after executing vehicle attitude control for reducing an output torque of the engine 4 based on a turning operation of the steering wheel 6, when the control amount of the vehicle attitude control is large, the PCM 14 increases the control amount of the vehicle yaw control compared to when the control amount of the vehicle attitude control is not large.
    Type: Application
    Filed: March 15, 2019
    Publication date: May 20, 2021
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasunori TAKAHARA, Kazunori TSUMURA, Daisuke UMETSU, Hirofumi FUJISHITA
  • Publication number: 20190193723
    Abstract: The vehicle behavior control device comprised a drive control system 4 and a brake control system 18, wherein a PCM 14 is configured, when steering angle is increasing, to set an additional deceleration to be added to the vehicle, and control the drive control system 4 to attain the additional deceleration, and, when the steering angle is decreasing, to set a yaw moment oriented in a direction opposite to that of a yaw rate being generated in the vehicle, as a target yaw moment to be applied to the vehicle, and control the brake control system 18 to apply the target yaw moment to the vehicle. Particularly, when the steering angle is 0, PCM 14 is configured to set the target yaw moment to 0 so as to terminate the control via the brake control system 18.
    Type: Application
    Filed: December 3, 2018
    Publication date: June 27, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Osamu SUNAHARA, Daisuke UMETSU, Yasunori TAKAHARA, Hirofumi FUJISHITA, Kazunori TSUMURA