Patents by Inventor Takanori MATSUKI
Takanori MATSUKI 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: 12145470Abstract: A braking control device of an industrial vehicle includes a travel motor configured to generate regenerative braking force and a mechanical brake configured to generate mechanical braking force as a braking unit and including a battery configured to be charged by the regenerative braking force. The device is configured to acquire vehicle speed information of the industrial vehicle, acquire a regenerative current of the travel motor, execute autonomous driving with a required braking force including the regenerative braking force for causing a vehicle speed of the industrial vehicle descending a slope to be a target vehicle speed based on the vehicle speed information, and adjust distribution of the mechanical braking force in the required braking force so that the acquired regenerative current is equal to or less than an upper regenerative threshold value smaller than a maximum regenerative current.Type: GrantFiled: February 14, 2022Date of Patent: November 19, 2024Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takanori Matsuki, Gouki Kawaguchi
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Patent number: 11731601Abstract: A brake system includes an electromagnetic brake device configured to apply a brake to a rotary shaft when current is not applied to the brake system and release the brake on the rotary shaft when current is applied to the brake system; and a brake release device configured to forcibly release the brake on the rotary shaft when current is not applied to the brake system. The brake release device includes a guide member having a tube shape; a release plate disposed within the guide member and engaged with the armature; and a transfer unit that is configured to move the release plate in a direction in which the rotary shaft extends.Type: GrantFiled: November 6, 2020Date of Patent: August 22, 2023Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori Matsuki
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Publication number: 20220258614Abstract: A braking control device of an industrial vehicle includes a travel motor configured So generate regenerative braking force and a mechanical brake configured to generate mechanical braking force as a braking unit and including a battery configured to be charged by the regenerative braking force. The device is configured to acquire vehicle speed information of the industrial vehicle, acquire a regenerative current of the travel motor, execute autonomous driving with a required braking force including the regenerative braking force for causing a vehicle speed of the industrial vehicle descending a slope to be a target vehicle speed based on the vehicle speed information, and adjust distribution of the mechanical braking force in the required braking force so that the acquired regenerative current is equal to or less than an upper regenerative threshold value smaller than a maximum regenerative current.Type: ApplicationFiled: February 14, 2022Publication date: August 18, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takanori MATSUKI, Gouki Kawaguchi
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Patent number: 11400898Abstract: When a drawbar is inserted into a coupling hole, which is a necessary task to couple a towbar to a tractor, a brake device switches from a braking state in which a braking force is applied to each front wheel to a non-braking state in which the front wheel is released from the braking force. When the drawbar is removed from the coupling hole, which is a necessary task to uncouple the tractor from the towbar, the brake device switches from the non-braking state to the braking state.Type: GrantFiled: July 17, 2020Date of Patent: August 2, 2022Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori Matsuki
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Patent number: 11097705Abstract: An electric parking brake system includes a wheel driven by an electric motor to move a vehicle, a parking brake maintaining the wheel stopped, a parking brake actuator operating the parking brake, and a drive controller controlling the parking brake actuator. The drive controller controls the electric motor to maintain the wheel of the vehicle stopped while the vehicle is parked, and calculates a parking torque based on a control amount of the electric motor that maintains the wheel stopped. The drive controller calculates a necessary braking force for the parking brake to maintain the wheel stopped based on the calculated parking torque, and controls the parking brake actuator so that the necessary braking force is generated.Type: GrantFiled: April 10, 2019Date of Patent: August 24, 2021Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori Matsuki
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Publication number: 20210146901Abstract: A brake system includes an electromagnetic brake device configured to apply a brake to a rotary shaft when current is not applied to the brake system and release the brake on the rotary shaft when current is applied to the brake system; and a brake release device configured to forcibly release the brake on the rotary shaft when current is not applied to the brake system. The brake release device includes a guide member having a tube shape; a release plate disposed within the guide member and engaged with the armature; and a transfer unit that is configured to move the release plate in a direction in which the rotary shaft extends.Type: ApplicationFiled: November 6, 2020Publication date: May 20, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori MATSUKI
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Publication number: 20210024046Abstract: When a drawbar is inserted into a coupling hole, which is a necessary task to couple a towbar to a tractor, a brake device switches from a braking state in which a braking force is applied to each front wheel to a non-braking state in which the front wheel is released from the braking force. When the drawbar is removed from the coupling hole, which is a necessary task to uncouple the tractor from the towbar, the brake device switches from the non-braking state to the braking state.Type: ApplicationFiled: July 17, 2020Publication date: January 28, 2021Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori MATSUKI
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Publication number: 20190315323Abstract: An electric parking brake system includes a wheel driven by an electric motor to move a vehicle, a parking brake maintaining the wheel stopped, a parking brake actuator operating the parking brake, and a drive controller controlling the parking brake actuator. The drive controller controls the electric motor to maintain the wheel of the vehicle stopped while the vehicle is parked, and calculates a parking torque based on a control amount of the electric motor that maintains the wheel stopped. The drive controller calculates a necessary braking force for the parking brake to maintain the wheel stopped based on the calculated parking torque, and controls the parking brake actuator so that the necessary braking force is generated.Type: ApplicationFiled: April 10, 2019Publication date: October 17, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Takanori MATSUKI