Patents by Inventor Ikuo Nonaga
Ikuo Nonaga 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).
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Patent number: 10753333Abstract: A vehicle control system includes a boost device, a braking unit, a cell motor, and a start operating unit. The boost device boosts a braking force applied by a foot brake to a vehicle with an output voltage from a battery. The braking unit, which is different than the foot brake, brakes the vehicle appropriately and keeps the braking force even in a case that the output voltage is not supplied from the battery, or which braking unit does not require the output voltage from the battery. The cell motor is driven by an output voltage from the battery and starts the engine. The start operation unit starts the cell motor, wherein the vehicle control system has a function not to start the cell motor when the start operation unit is operated, unless the braking unit is in operation.Type: GrantFiled: December 12, 2017Date of Patent: August 25, 2020Assignee: HONDA MOTOR CO., LTD.Inventors: Katsuhito Kanbe, Eisuke Horii, Katsuya Matsuzaki, Yuki Hotani, Keishiro Kikuchi, Hisanori Yanagida, Toshihiko Fukuda, Hideharu Murano, Shinji Suto, Ikuo Nonaga, Hiroyuki Hase
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Publication number: 20200095968Abstract: A vehicle control system includes a boost device, a braking unit, a cell motor, and a start operating unit. The boost device boosts a braking force applied by a foot brake to a vehicle with an output voltage from a battery. The braking unit, which is different than the foot brake, brakes the vehicle appropriately and keeps the braking force even in a case that the output voltage is not supplied from the battery, or which braking unit does not require the output voltage from the battery. The cell motor is driven by an output voltage from the battery and starts the engine. The start operation unit starts the cell motor, wherein the vehicle control system has a function not to start the cell motor when the start operation unit is operated, unless the braking unit is in operation.Type: ApplicationFiled: December 12, 2017Publication date: March 26, 2020Inventors: Katsuhito KANBE, Eisuke HORII, Katsuya MATSUZAKI, Yuki HOTANI, Keishiro KIKUCHI, Hisanori YANAGIDA, Toshihiko FUKUDA, Hideharu MURANO, Shinji SUTO, Ikuo NONAGA, Hiroyuki HASE
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Patent number: 7681961Abstract: A brake system for a vehicle includes an electrically operated parking brake drive device which generates an operating force for operating the wheel brakes or dedicated parking brakes in response to energization, and which operates even upon cancellation of the energization while in the operated state. A braking force related amount detector detects a physical quantity related to a braking force exhibited by each of the hydraulic pressure operated wheel brakes. When a detected physical quantity exceeds a reference value in a stopped state of the vehicle, a controller energizes the electrically operated parking brake drive device. Thus, the frequency of operation of the electrically operated parking brake drive device is decreased while eliminating inconvenient operations required to operate the electrically operated parking brake drive device, thereby reducing noise and improving durability.Type: GrantFiled: June 12, 2006Date of Patent: March 23, 2010Assignee: Honda Motor Co., Ltd.Inventors: Ikuo Nonaga, Hiroshi Koan, Akihiko Koike, Tsuyoshi Sato, Makoto Taniguchi, Yutaka Kichima, Ichiro Ueno, Katsuyuki Takei, Takashi Kuboshima
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Publication number: 20070007817Abstract: A brake system for a vehicle includes an electrically operated parking brake drive device which generates an operating force for operating the wheel brakes or dedicated parking brakes in response to energization, and which operates even upon cancellation of the energization while in the operated state. A braking force related amount detector detects a physical quantity related to a braking force exhibited by each of the hydraulic pressure operated wheel brakes. When a detected physical quantity exceeds a reference value in a stopped state of the vehicle, a controller energizes the electrically operated parking brake drive device. Thus, the frequency of operation of the electrically operated parking brake drive device is decreased while eliminating inconvenient operations required to operate the electrically operated parking brake drive device, thereby reducing noise and improving durability.Type: ApplicationFiled: June 12, 2006Publication date: January 11, 2007Applicant: Honda Motor Co., Ltd.Inventors: Ikuo Nonaga, Hiroshi Koan, Akihiko Koike, Tsuyoshi Sato, Makoto Taniguchi, Yutaka Kichima, Ichiro Ueno, Katsuyuki Takei, Takashi Kuboshima
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Patent number: 5857755Abstract: In an electric vehicle the driven wheels connected to an electric motor are liquid-pressure braked in a condition in which a differential pressure regulating valve interposed between the driven wheels and a master cylinder has been opened, and the driven wheels are regeneratively braked in a condition in which the differential pressure regulating valve has been closed to inhibit the liquid pressure braking. By temporarily opening the differential pressure regulating valve at the start of depression of the brake pedal, a stroke of the brake pedal depending upon the play of the brake caliper is previously absorbed. Thus, when the differential pressure regulating valve has been opened to switch over the regenerative braking to the liquid pressure braking, the change in stroke of the brake pedal can be reduced by a stroke amount that corresponds to the play of the brake caliper.Type: GrantFiled: October 15, 1997Date of Patent: January 12, 1999Inventors: Yasushi Aoki, Ikuo Nonaga, Yasushi Suganuma
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Patent number: 5433512Abstract: In an electric vehicle capable of regenerative braking of wheels, a differential pressure regulating valve is interposed between a master cylinder for generating a hydraulic braking pressure by operation of a brake operating element and a brake cylinder for a driven wheel. In a first region in which an input hydraulic pressure into the differential pressure regulating valve is equal to or less than a predetermined value, an output hydraulic pressure from the differential pressure regulating valve is maintained at zero, and in a second region in which the input hydraulic pressure exceeds the predetermined value, the output hydraulic pressure is lower than the input hydraulic pressure by the predetermined value.Type: GrantFiled: November 15, 1993Date of Patent: July 18, 1995Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Yasushi Aoki, Takeshi Ohba, Iwao Nakamura, Ikuo Nonaga, Yukihisa Ishii
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Patent number: 5365440Abstract: A four wheel steering system for a motor vehicle with steerable front and rear road wheels, a steering angle sensor for detecting a front wheel steering angle through which the front road wheels are steered, a vehicle speed sensor for detecting a vehicle speed of the motor vehicle, a rear wheel steering mechanism for steering the rear wheels, and a controller for controlling the rear wheel steering mechanism to steer the rear road wheels based on the detected front wheel steering angle and the detected vehicle speed when the front road wheels are steering. The controller controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is opposite to the front road wheels if the detected vehicle speed is relatively low, and also controls the rear wheel steering mechanism to steer the rear road wheels in a direction which is the same as the front road wheels if the detected vehicle speed is relatively high.Type: GrantFiled: November 27, 1991Date of Patent: November 15, 1994Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Masaru Abe, Yoshimichi Kawamoto, Ikuo Nonaga, Masataka Izawa
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Patent number: 5234068Abstract: An electric power steering system which additionally includes a radial arm extending from a steering rod, an axial shaft extending in parallel with the axial center line of the steering rod, an axial bore formed in the casing of the system for guiding axial movement of the axial shaft substantially without any play, and a spring member urging the axial shaft against a side wall of the axial bore. Thus, rotation of the steering rod around its axial center line may be prevented with a relatively small force. Therefore, no excessive force needs to be applied to the axial shaft, and the axial shaft would not encounter any substantial resistance to its axial movement.Type: GrantFiled: October 16, 1991Date of Patent: August 10, 1993Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Kohata, Masaru Abe, Ikuo Nonaga
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Patent number: 5189616Abstract: A four-wheel steering system for a motor vehicle steers motor vehicle rear wheels based on a steering angle ratio between front and rear wheels based on a vehicle speed, and a front wheel steering angle. The steering angle ratio is of a negative value or a relatively small positive value when the vehicle speed is in a medium speed range or a high speed range and the front wheel steering angle is in a relatively small range. The motor vehicle is controlled to turn well when the front wheel steering angle is in the relative small range while the motor vehicle is running in the medium and high speed ranges.Type: GrantFiled: November 21, 1990Date of Patent: February 23, 1993Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Osamu Tsurumiya, Masataka Izawa, Masaru Abe, Ikuo Nonaga
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Patent number: 5135067Abstract: An electric power steering system which additionally includes a radial arm extending from a steering rod, an axial shaft extending in parallel with the axial center line of the steering rod, an axial bore formed in the casing of the system for guiding axial movement of the axial shaft substantially without any play, and a spring member urging the axial shaft against a side wall of the axial bore. Thus, rotation of the steering rod around its axial center line may be prevented with a relatively small force. Therefore, no excessive force needs to be applied to the axial shaft, and the axial shaft would not encounter any substantial resistance to its axial movement.Type: GrantFiled: August 6, 1990Date of Patent: August 4, 1992Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Takashi Kohata, Masaru Abe, Ikuo Nonaga
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Patent number: 4939653Abstract: The steering operation of a motor vehicle with steerable front and rear road wheels is controlled by steering the rear road wheels with an actuator such as an electric motor which produces a steering force dependent on a deviation of the actual rear wheel steering angle from a target rear wheel steering angle. The rear road wheels are thus controlled with a characteristic dependent on the coefficient of friction of a road on which the motor vehicle travels and the steering speed at which the motor vehicle is steered.Type: GrantFiled: July 29, 1988Date of Patent: July 3, 1990Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Osamu Tsurumiya, Masaru Abe, Yoshimichi Kawamoto, Takashi Kohata, Ikuo Nonaga, Masataka Izawa