Patents by Inventor Tatsuya OOSHIMA

Tatsuya OOSHIMA 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: 11473674
    Abstract: A vehicle control device controls a vehicle provided with a transmission having a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position based on a travel resistance of the vehicle, a forward gear position selection unit that selects a forward gear position based on a travel resistance in the forward travel segment, and a shift control unit that selects whether or not to upshift the transmission based on a situation until the vehicle reaches the forward travel segment, when an upshift to the overdrive gear is newly selected in a case where the current gear position and the forward gear position are the direct gear.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: October 18, 2022
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 11118678
    Abstract: This vehicle control device 10 is provided with: a current gear stage selection unit 13 which selects a current gear stage, which is the gear stage of the vehicle in the present travel state; a travel segment determination unit 15 which determines the next travel segment forwards in the direction of travel of the vehicle V; and a shift control unit 17 which, in the case that the current gear stage selection unit 13 has newly selected a target gear stage lower than the current gear stage during travel of the vehicle V in the current gear stage in the current travel segment, if the next travel segment can be traveled in the current gear stage and the amount the vehicle V will lose speed after traveling the current travel segment is less than or equal to a prescribed threshold value, controls shifting of the gear stage such that downshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 14, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 11105414
    Abstract: A vehicle control device controls operation of a vehicle provided with a transmission having a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position in accordance with a shift pattern, a forward gear position selection unit that selects a forward gear position based on a travel resistance of the vehicle in the forward travel segment, and a shift control unit that maintains a gear position as the direct gear while the vehicle travels in the forward travel segment, when a gear position of the transmission in the current travel segment is the overdrive gear and the forward gear position is the direct gear.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: August 31, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Junpei Matsuda
  • Patent number: 11067165
    Abstract: In this vehicle control device (10), which controls operation of a vehicle provided with a transmission including a direct gear and an overdrive gear, which is a gear with a lower gear ratio than that of the direct gear, a travel segment determination unit (15) determines a next travel segment which, forward in the travel direction of the vehicle, has a road slope different from that of the current travel segment where the vehicle is currently traveling. A next gear stage selection unit (16) determines a next gear stage, which will be the gear stage of a transmission in the next travel segment, on the basis of the speed of the vehicle, an equal fuel consumption map of the engine of the vehicle, and the travel resistance of the vehicle in the next travel segment estimated on the basis of the road slope in the next travel segment.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: July 20, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura, Junpei Matsuda
  • Patent number: 11022212
    Abstract: A vehicle control device controls a vehicle provided with a transmission to travel at a set speed. The transmission has a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position based on a travel resistance of the vehicle, a forward gear position selection unit that selects a forward gear position based on a travel resistance of the vehicle in the forward travel segment, and a shift control unit that changes a gear position to the forward gear position when the vehicle reaches the forward travel segment on condition that a difference between the set speed and the vehicle speed is within a prescribed range.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: June 1, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 10995853
    Abstract: A vehicle control device includes: a travel section determination unit configured to determine a forward travel section that is a travel section having a different road gradient from a current travel section in which a vehicle is currently traveling and that is ahead in a travel direction of the vehicle; a forward gear stage selection unit configured to select a forward gear stage which is a gear stage of the vehicle in the forward travel section; and a shift control unit configured to, in a case where the selected forward gear stage is lower by two or more stages than the current gear stage which is a gear stage of the vehicle in the current travel section and when the vehicle is positioned within a predetermined range from a start position of the forward travel section, perform downshift from the current gear stage to the forward gear stage.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: May 4, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 10982756
    Abstract: In a case where a vehicle is in a first mode in which suppression of fuel consumption is prioritized, a forward gear stage selection unit selects as a forward gear stage a gear stage at which a minimum travelable vehicle speed, which is a minimum speed among a speed of the vehicle at which a driving force indicated by a driving force characteristic is equal to or greater than a travel resistance of a travel resistance characteristic, is highest, and in a case where the vehicle is in a second mode in which improvement of travel performance is prioritized, the forward gear stage selection unit selects as the forward gear stage a gear stage at which a maximum travelable vehicle speed, which is a maximum speed among the speed of the vehicle at which the driving force is equal to or greater than the travel resistance, is highest.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 20, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 10975958
    Abstract: This vehicle control devices provided with: a travel segment determination unit 15 which determines a next travel segment, forwards in the travel direction of the vehicle, which has a different road slope from the current travel segment where the vehicle is currently traveling; a next gear stage selection unit 16 which, on the basis of the road slope of the next travel segment, selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment; and a shift control unit 17 which upshifts to the next gear stage in the current travel segment in the case that the travel resistance in the next travel segment is less than the travel resistance of the current travel segment, the value obtained by subtracting the travel resistance of the vehicle in the current travel segment from the drive force at the current speed of the vehicle in the next gear stage is less than a first prescribed value, and the value obtained by subtracting the travel resistance of the vehicle in the next travel se
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 13, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Patent number: 10975961
    Abstract: This vehicle control device 10 is provided with: a current gear stage selection unit 13 which, on the basis of the travel resistance of the vehicle, selects a current gear stage, which is the gear stage of the vehicle in the current travel segment where the vehicle is traveling; a next gear stage selection unit 16 which selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment, forwards in the travel direction of the vehicle, having a road slope different from that of the current travel segment; and a shift control unit 17 which, if during travel of the vehicle in the current travel segment in the current gear stage, the current gear stage selection unit 13 has newly selected a target gear stage higher than the next gear stage, controls shifting such that upshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: April 13, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Publication number: 20210088131
    Abstract: In a case where a vehicle is in a first mode in which suppression of fuel consumption is prioritized, a forward gear stage selection unit selects as a forward gear stage a gear stage at which a minimum travelable vehicle speed, which is a minimum speed among a speed of the vehicle at which a driving force indicated by a driving force characteristic is equal to or greater than a travel resistance of a travel resistance characteristic, is highest, and in a case where the vehicle is in a second mode in which improvement of travel performance is prioritized, the forward gear stage selection unit selects as the forward gear stage a gear stage at which a maximum travelable vehicle speed, which is a maximum speed among the speed of the vehicle at which the driving force is equal to or greater than the travel resistance, is highest.
    Type: Application
    Filed: May 10, 2018
    Publication date: March 25, 2021
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Publication number: 20210088129
    Abstract: This vehicle control devices provided with: a travel segment determination unit 15 which determines a next travel segment, forwards in the travel direction of the vehicle, which has a different road slope from the current travel segment where the vehicle is currently traveling; a next gear stage selection unit 16 which, on the basis of the road slope of the next travel segment, selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment; and a shift control unit 17 which upshifts to the next gear stage in the current travel segment in the case that the travel resistance in the next travel segment is less than the travel resistance of the current travel segment, the value obtained by subtracting the travel resistance of the vehicle in the current travel segment from the drive force at the current speed of the vehicle in the next gear stage is less than a first prescribed value, and the value obtained by subtracting the travel resistance of the vehicle in the next travel se
    Type: Application
    Filed: May 9, 2018
    Publication date: March 25, 2021
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Patent number: 10907730
    Abstract: A vehicle control device performing upshift to a forward gear stage in a current travel section in a case where: (1) the forward gear stage is higher than a current gear stage; (2) a travel resistance of a vehicle in the current travel section is greater than a driving force in a case of traveling at the forward gear stage; (3) a stall amount until the vehicle passes an end point of the current travel section in a case where the vehicle travels in the current travel section at the forward gear stage is equal to or smaller than a specified value; and (4) a value obtained by subtracting the travel resistance of the vehicle in a forward travel section from a driving force in a case where the vehicle travels in the forward travel section at the forward gear stage is equal to or greater than a predetermined value.
    Type: Grant
    Filed: May 10, 2018
    Date of Patent: February 2, 2021
    Assignee: ISUZU MOTORS LIMITED
    Inventors: Tatsuya Ooshima, Nobuyuki Nishimura
  • Publication number: 20200200261
    Abstract: A vehicle control device controls operation of a vehicle provided with a transmission having a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position in accordance with a shift pattern, a forward gear position selection unit that selects a forward gear position based on a travel resistance of the vehicle in the forward travel segment, and a shift control unit that maintains a gear position as the direct gear while the vehicle travels in the forward travel segment, when a gear position of the transmission in the current travel segment is the overdrive gear and the forward gear position is the direct gear.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya OOSHIMA, Junpei MATSUDA
  • Publication number: 20200200260
    Abstract: A vehicle control device controls a vehicle provided with a transmission having a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position based on a travel resistance of the vehicle, a forward gear position selection unit that selects a forward gear position based on a travel resistance in the forward travel segment, and a shift control unit that selects whether or not to upshift the transmission based on a situation until the vehicle reaches the forward travel segment, when an upshift to the overdrive gear is newly selected in a case where the current gear position and the forward gear position are the direct gear.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Publication number: 20200198659
    Abstract: A vehicle control device including: a road gradient acquisition unit configured to acquire a road gradient of a road on which a vehicle is currently traveling; a travel section determination unit configured to determine a forward travel section that is a travel section having a different road gradient from a current travel section in which the vehicle is currently traveling and that is ahead in a travel direction of the vehicle; and a horsepower limitation unit configured to limit an output horsepower of an engine based on a travel resistance of the vehicle, in which the horsepower limitation unit is configured to release the output horsepower limitation of the engine in a case where the travel resistance in the forward travel section is greater than the travel resistance of the vehicle in the current travel section.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya OOSHIMA, Junpei MATSUDA
  • Publication number: 20200200262
    Abstract: A vehicle control device controls a vehicle provided with a transmission to travel at a set speed. The transmission has a direct gear and normal gears including an overdrive gear having a lower gear ratio than the direct gear. The device includes a travel segment determination unit which determines a forward travel segment having a different road slope from a current travel segment, a current gear position selection unit that selects a current gear position based on a travel resistance of the vehicle, a forward gear position selection unit that selects a forward gear position based on a travel resistance of the vehicle in the forward travel segment, and a shift control unit that changes a gear position to the forward gear position when the vehicle reaches the forward travel segment on condition that a difference between the set speed and the vehicle speed is within a prescribed range.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Publication number: 20200200263
    Abstract: A vehicle control device performing upshift to a forward gear stage in a current travel section in a case where: (1) the forward gear stage is higher than a current gear stage; (2) a travel resistance of a vehicle in the current travel section is greater than a driving force in a case of traveling at the forward gear stage; (3) a stall amount until the vehicle passes an end point of the current travel section in a case where the vehicle travels in the current travel section at the forward gear stage is equal to or smaller than a specified value; and (4) a value obtained by subtracting the travel resistance of the vehicle in a forward travel section from a driving force in a case where the vehicle travels in the forward travel section at the forward gear stage is equal to or greater than a predetermined value.
    Type: Application
    Filed: May 10, 2018
    Publication date: June 25, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Publication number: 20200141487
    Abstract: In this vehicle control device (10), which controls operation of a vehicle provided with a transmission including a direct gear and an overdrive gear, which is a gear with a lower gear ratio than that of the direct gear, a travel segment determination unit (15) determines a next travel segment which, forward in the travel direction of the vehicle, has a road slope different from that of the current travel segment where the vehicle is currently traveling. A next gear stage selection unit (16) determines a next gear stage, which will be the gear stage of a transmission in the next travel segment, on the basis of the speed of the vehicle, an equal fuel consumption map of the engine of the vehicle, and the travel resistance of the vehicle in the next travel segment estimated on the basis of the road slope in the next travel segment.
    Type: Application
    Filed: May 9, 2018
    Publication date: May 7, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA, Junpei MATSUDA
  • Publication number: 20200096098
    Abstract: This vehicle control device 10 is provided with: a current gear stage selection unit 13 which, on the basis of the travel resistance of the vehicle, selects a current gear stage, which is the gear stage of the vehicle in the current travel segment where the vehicle is traveling; a next gear stage selection unit 16 which selects a next gear stage, which will be the gear stage of the vehicle in the next travel segment, forwards in the travel direction of the vehicle, having a road slope different from that of the current travel segment; and a shift control unit 17 which, if during travel of the vehicle in the current travel segment in the current gear stage, the current gear stage selection unit 13 has newly selected a target gear stage higher than the next gear stage, controls shifting such that upshifting from the current gear stage to the target gear stage is suppressed and the current gear stage is maintained.
    Type: Application
    Filed: May 10, 2018
    Publication date: March 26, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA
  • Publication number: 20200096099
    Abstract: A vehicle control device includes: a travel section determination unit configured to determine a forward travel section that is a travel section having a different road gradient from a current travel section in which a vehicle is currently traveling and that is ahead in a travel direction of the vehicle; a forward gear stage selection unit configured to select a forward gear stage which is a gear stage of the vehicle in the forward travel section; and a shift control unit configured to, in a case where the selected forward gear stage is lower by two or more stages than the current gear stage which is a gear stage of the vehicle in the current travel section and when the vehicle is positioned within a predetermined range from a start position of the forward travel section, perform downshift from the current gear stage to the forward gear stage.
    Type: Application
    Filed: May 10, 2018
    Publication date: March 26, 2020
    Inventors: Tatsuya OOSHIMA, Nobuyuki NISHIMURA