Patents by Inventor Yoshitaka FUKASAWA

Yoshitaka FUKASAWA 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: 20240034286
    Abstract: Provided is a collision avoidance assistance device with improved functionality and usability, which can suppress an excessive application or emergency application of the brakes in assisting avoidance of a collision with an object traveling in a lane orthogonal to a host vehicle (a road crossing the host vehicle).
    Type: Application
    Filed: June 23, 2023
    Publication date: February 1, 2024
    Applicants: Hitachi Astemo, Ltd., HONDA MOTOR CO., LTD.
    Inventors: Kenta GUNJI, Satoshi MATSUDA, Yoshitaka FUKASAWA, Shinya MARUO
  • Publication number: 20240025408
    Abstract: Provided is a vehicle control device capable of improving robustness against an attitude change of an occupant during preceding vehicle follow-up control in a straddle type vehicle such as a motorcycle. A vehicle control device 100 for a straddle type vehicle that controls a driving force during preceding vehicle follow-up control for causing an own vehicle to follow a preceding vehicle, in which the driving force (which is a control amount of the preceding vehicle follow-up control) is corrected according to an attitude (attitude change) of a driver detected by an attitude detection device 800 during the preceding vehicle follow-up control. Further, the driving force is corrected on the basis of the attitude, the driving torque of the own vehicle, and the acceleration of the own vehicle.
    Type: Application
    Filed: September 8, 2021
    Publication date: January 25, 2024
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Yoshitaka FUKASAWA, Satoshi MATSUDA, Yuya TANAKA
  • Patent number: 11827273
    Abstract: The vehicle stop position accuracy is improved. A parking assist device, which assists parking of a vehicle at a target stop position, includes: a traveling distance calculation unit that calculates a traveling distance of the vehicle based on a wheel speed pulse; and a braking/driving force calculation unit that determines a remaining distance to the target stop position based on the traveling distance, and switches control of the braking force of the vehicle from feedback control to feedforward control when the remaining distance becomes a value equal to or less than a predetermined value.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: November 28, 2023
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Akitoshi Miyazaki, Yoshitaka Fukasawa, Tomoyasu Sakaguchi
  • Publication number: 20230011130
    Abstract: Provided is a vehicle control device capable of preventing a delay in driver's bank angle operation during traveling of a straddle type vehicle on a curve and enhancing safety of the vehicle. The vehicle control device 100 is a device that is mounted on a two-wheeled motor vehicle and controls the vehicle to travel while following a preceding vehicle. The vehicle control device 100 includes a curvature acquisition unit 110 that acquires a curvature of a road in front of the vehicle and a driving force control unit 120 that limits a change amount of driving force of the vehicle per unit time based on the curvature acquired by the curvature acquisition unit 110.
    Type: Application
    Filed: December 15, 2020
    Publication date: January 12, 2023
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Yoshitaka FUKASAWA, Katsuro WATANABE, Ryosuke SHIMIZU
  • Publication number: 20220227387
    Abstract: A vehicle control device includes a processor, a memory and a sensor that acquires surrounding environment information of the vehicle, a host vehicle position estimation unit that estimates the route of the vehicle, a surrounding environment storage unit that stores the surrounding environment information and the route estimated by the host vehicle position estimation unit in association with each other, a vehicle-speed threshold determination unit that sets a vehicle-speed threshold value when the surrounding environment storage unit stores the surrounding environment information and the route in association with each other, and determines whether or not a current vehicle speed exceeds the vehicle-speed threshold value when the surrounding environment storage unit stores the surrounding environment information and the route, and a warning unit that performs a notification of an excess of the vehicle speed when the vehicle-speed threshold determination unit determines that the vehicle speed exceeds the vehicl
    Type: Application
    Filed: June 19, 2020
    Publication date: July 21, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Koichiro OZAKI, Masashi SEIMIYA, Tomoyasu SAKAGUCHI, Yoshitaka FUKASAWA
  • Patent number: 11332126
    Abstract: When one sensors fails and thus malfunctions during automatic parking of a vehicle, only the other sensor functions. Accordingly, depending on the behavior of the vehicle, the detection characteristics of the other sensor cause degradation in recognition of the vehicle, hindering the automatic parking from being continued. In processing S401, a determination is made whether or not an external recognition device, such as a camera or sonar, malfunctions. In processing S402, based on the determination on malfunction of the external recognition device, a determination is made whether or not to restrict vehicle speed or to restrict a path, with reference to restriction information for parking control. The restriction information for parking control provides information for restricting the vehicle speed in accordance with the malfunction of the camera, and for restricting the path in accordance with the malfunction of the sonar.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: May 17, 2022
    Assignee: HITACHI ASTEMO, LTD.
    Inventors: Masashi Seimiya, Satoshi Matsuda, Tomoyasu Sakaguchi, Yusuke Kogure, Yoshitaka Fukasawa
  • Publication number: 20220084330
    Abstract: A vehicle control device includes a counting unit that counts rotation of wheels by a sensor; and a rotation determination unit that determines the rotation based on a count value of each of the wheels obtained by the counting unit. Based on a movement distance of a vehicle, the movement distance of each of the wheels from rotation detection to the next rotation detection is defined as a rotation detection travel distance of each of the wheels. The rotation determination unit determines a rotation direction of a wheel a second time is a direction opposite to that detected for a first time when rotation detection is not performed even once for a first reference wheel having a rotation detection travel distance equal to or less than a rotation detection travel distance of the first determination target wheel while the rotation of the selected first determination target wheel is detected twice.
    Type: Application
    Filed: January 21, 2020
    Publication date: March 17, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Tomoyasu SAKAGUCHI, Masashi SEIMIYA, Yoshitaka FUKASAWA
  • Publication number: 20220063625
    Abstract: A vehicle braking force proportional to a gradient is reduced to zero after the vehicle is stopped by the braking force, thereby reducing the time for applying a braking force. A system and method for vehicle control includes a processor and a memory. The vehicle control method including a first step of the processor generating a command for applying a first braking force preset to hold the vehicle in a stopped state, a second step of the processor acquiring, from a gradient detection device, a gradient of a road surface on which the vehicle is traveling after applying the first braking force, the gradient being detected by the gradient detection device, a third step of the processor computing a second braking force proportional to the gradient of the road surface, and a fourth step of the processor applying the second braking force to the braking device.
    Type: Application
    Filed: January 10, 2020
    Publication date: March 3, 2022
    Applicant: Hitachi Astemo, Ltd.
    Inventors: Koichiro OZAKI, Yusuke KOGURE, Yoshitaka FUKASAWA, Tomoyasu SAKAGUCHI
  • Publication number: 20210380168
    Abstract: The vehicle stop position accuracy is improved. A parking assist device, which assists parking of a vehicle at a target stop position, includes: a traveling distance calculation unit that calculates a traveling distance of the vehicle based on a wheel speed pulse; and a braking/driving force calculation unit that determines a remaining distance to the target stop position based on the traveling distance, and switches control of the braking force of the vehicle from feedback control to feedforward control when the remaining distance becomes a value equal to or less than a predetermined value.
    Type: Application
    Filed: October 16, 2019
    Publication date: December 9, 2021
    Applicant: HITACHI ASTEMO, LTD.
    Inventors: Akitoshi MIYAZAKI, Yoshitaka FUKASAWA, Tomoyasu SAKAGUCHI
  • Patent number: 11124200
    Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: September 21, 2021
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshitaka Fukasawa, Masahito Mitsuhashi, Takayuki Kawashima
  • Publication number: 20210213941
    Abstract: Provided is a vehicle control device capable of improving the riding comfort of a vehicle during parking control. A vehicle control device 10 includes: a distance measuring unit 14 that measures a distance between a position of a vehicle and a target stop position of the vehicle; and an acceleration setting unit 15 that sets an acceleration profile, which is a time change of a target value of acceleration during deceleration of the vehicle, according to the distance based on a jerk profile 15a, which is a time change of a target value of jerk during deceleration of the vehicle.
    Type: Application
    Filed: August 8, 2019
    Publication date: July 15, 2021
    Inventors: Yoshitaka FUKASAWA, Yusuke KOGURE, Masashi SEIMIYA, Tomoyasu SAKAGUCHI, Satoshi MATSUDA
  • Publication number: 20210070283
    Abstract: Provided is a vehicle control device capable of quickly obtaining a route for reaching a target parking position re-recognized during automatic parking control. The vehicle control device includes: a connection route generation unit 33 which generates a target route 47 for moving a vehicle 1 from a parking start position 41 to a target parking position 44a of a target parking frame 44, and generates a connection route 48 for moving the vehicle to the target parking position of the target parking frame re-recognized by a recognition unit 31 while the vehicle moves along the target route from the position of the vehicle; and a mode switching unit which switches from a first mode in which the vehicle 1 moves along the target route 47 to a second mode in which the vehicle 1 moves along the connection route 48, on condition that the connection route 48 is generated.
    Type: Application
    Filed: May 8, 2019
    Publication date: March 11, 2021
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Yoshitaka FUKASAWA, Masashi SEIMIYA, Satoshi MATSUDA, Tomoyasu SAKAGUCHI, Yusuke KOGURE
  • Publication number: 20200406890
    Abstract: When one sensors fails and thus malfunctions during automatic parking of a vehicle, only the other sensor functions. Accordingly, depending on the behavior of the vehicle, the detection characteristics of the other sensor cause degradation in recognition of the vehicle, hindering the automatic parking from being continued. In processing S401, a determination is made whether or not an external recognition device, such as a camera or sonar, malfunctions. In processing S402, based on the determination on malfunction of the external recognition device, a determination is made whether or not to restrict vehicle speed or to restrict a path, with reference to restriction information for parking control. The restriction information for parking control provides information for restricting the vehicle speed in accordance with the malfunction of the camera, and for restricting the path in accordance with the malfunction of the sonar.
    Type: Application
    Filed: February 8, 2019
    Publication date: December 31, 2020
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Masashi SEIMIYA, Satoshi MATSUDA, Tomoyasu SAKAGUCHI, Yusuke KOGURE, Yoshitaka FUKASAWA
  • Publication number: 20190241194
    Abstract: A vehicle control device that is capable of performing abnormality determination of a sensor by majority decision without increasing the number of sensors. A vehicle control device includes a camera and a radar configured to detect a predetermined detection target; and a communication device configured to communicate with outside. The vehicle control device determines whether there is an abnormality in the camera and the radar on the basis of: first acquisition means configured to acquire information on the predetermined detection target from each of the camera and the radar; second acquisition means configured to acquire information, on the predetermined detection target, detected by a road-to-vehicle communication device external to an own vehicle and received by the communication device; information from the camera and the radar acquired by the first acquisition means; and information from the road-to-vehicle communication device external to the own vehicle acquired by the second acquisition means.
    Type: Application
    Filed: February 5, 2018
    Publication date: August 8, 2019
    Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Yoshitaka FUKASAWA, Masahito MITSUHASHI, Takayuki KAWASHIMA