Patents by Inventor Takenari Yamaguchi
Takenari Yamaguchi 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: 11505242Abstract: A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to change an execution ratio of the main process and an execution ratio of the auxiliary process.Type: GrantFiled: April 18, 2019Date of Patent: November 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro Okano, Kenji Shibata, Takenari Yamaguchi
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Patent number: 11472478Abstract: A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering of the wheel in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to decrease an execution ratio of the main process and increase an execution ratio of the auxiliary process when a condition that a running speed of the vehicle is not lower than a threshold speed is satisfied.Type: GrantFiled: April 19, 2019Date of Patent: October 18, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kenji Shibata, Takahiro Okano, Takenari Yamaguchi
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Publication number: 20190322312Abstract: A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to change an execution ratio of the main process and an execution ratio of the auxiliary process.Type: ApplicationFiled: April 18, 2019Publication date: October 24, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Takahiro OKANO, Kenji SHIBATA, Takenari YAMAGUCHI
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Publication number: 20190322314Abstract: A steering system of a vehicle, including an operation member to be operated by a driver, a steering device configured to steer a wheel, and a controller configured to control the steering system, wherein the controller is configured to parallelly execute a main process including a process in which the controller controls the steering device to perform steering of the wheel in accordance with an operation of the operation member and an auxiliary process relating to an operation of the steering system and configured to decrease an execution ratio of the main process and increase an execution ratio of the auxiliary process when a condition that a running speed of the vehicle is not lower than a threshold speed is satisfied.Type: ApplicationFiled: April 19, 2019Publication date: October 24, 2019Inventors: Kenji Shibata, Takahiro Okano, Takenari Yamaguchi
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Publication number: 20160089950Abstract: A hydraulic shock absorber includes a damping force generator configured to, when a current is supplied, generate a current-dependent damping force as a damping force relating to a magnitude of the current supplied and configured to, when no current is supplied, generate a current-non-supply-state set damping force as a damping force with a preset magnitude. This hydraulic shock absorber is configured to inhibit a supply of the current to the damping force generator when the current to be supplied to the damping force generator is greater than a threshold value. When a current to be received by the damping force generator is to increase to a value larger than the threshold value, the supply of the current to the damping force generator is inhibited, and the current-non-supply-state set damping force is generated, making it possible to reliably achieve a damping capacity while reducing power consumption.Type: ApplicationFiled: March 29, 2013Publication date: March 31, 2016Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Takenari YAMAGUCHI
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Patent number: 8326488Abstract: A height controlling apparatus for controlling at least one actual height as a relative position of (a) a body of a vehicle and (b) at least one wheel of the vehicle relative to each other, the apparatus including at least one height controlling actuator which changes the at least one actual height; and an actuator control device which controls the at least one height controlling actuator so that the at least one actual height approaches at least one target height.Type: GrantFiled: February 12, 2010Date of Patent: December 4, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Onuma, Masaaki Tabata, Takenari Yamaguchi, Masaki Kanatani, Atsushi Mizuta, Hideki Ohashi, Koutaro Okimura
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Patent number: 7761205Abstract: A height controlling apparatus for controlling at least one actual height as a relative position of (a) a body of a vehicle and (b) at least one wheel of the vehicle relative to each other, the apparatus including at least one height controlling actuator which changes the at least one actual height; and an actuator control device which controls the at least one height controlling actuator so that the at least one actual height approaches at least one target height.Type: GrantFiled: December 12, 2005Date of Patent: July 20, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Toshio Onuma, Masaaki Tabata, Takenari Yamaguchi, Masaki Kanatani, Atsushi Mizuta, Hideki Ohashi, Koutaro Okimura
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Publication number: 20100152970Abstract: A height controlling apparatus for controlling at least one actual height as a relative position of (a) a body of a vehicle and (b) at least one wheel of the vehicle relative to each other, the apparatus including at least one height controlling actuator which changes the at least one actual height; and an actuator control device which controls the at least one height controlling actuator so that the at least one actual height approaches at least one target height.Type: ApplicationFiled: February 12, 2010Publication date: June 17, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshio Onuma, Masaaki Tabata, Takenari Yamaguchi, Masaki Kanatani, Atsushi Mizuta, Hideki Ohashi, Koutaro Okimura
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Patent number: 7722056Abstract: It is an object of the invention to improve the utility of an electromagnetic absorber system which is disposed in a suspension system of a vehicle and which generates a damping force by a generation force of a motor. The electromagnetic absorber system 18 is equipped with high-speed-motion responding means, thereby obviating an insufficiency of the damping force and a deterioration of the controllability in a high-speed stroke motion. More specifically, a hydraulic absorber 64 is provided in combination with the electromagnetic absorber system such that the hydraulic absorber 64 operates in the high-speed motion in which an electromotive force of the motor 68 exceeds a power source voltage Further, two motors having mutually different T-N characteristics are provided, and the two motors are selectively operated depending upon a stroke speed.Type: GrantFiled: March 23, 2006Date of Patent: May 25, 2010Assignees: Toyota Jidosha Kabushiki Kaisha, Kayaba Industry Co., Ltd.Inventors: Hirofumi Inoue, Takenari Yamaguchi, Takuhiro Kondo
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Publication number: 20090079145Abstract: It is an object of the invention to improve the utility of an electromagnetic absorber system which is disposed in a suspension system of a vehicle and which generates a damping force by a generation force of a motor. The electromagnetic absorber system 18 is equipped with high-speed-motion responding means, thereby obviating an insufficiency of the damping force and a deterioration of the controllability in a high-speed stroke motion. More specifically, a hydraulic absorber 64 is provided in combination with the electromagnetic absorber system such that the hydraulic absorber 64 operates in the high-speed motion in which an electromotive force of the motor 68 exceeds a power source voltage Further, two motors having mutually different T-N characteristics are provided, and the two motors are selectively operated depending upon a stroke speed.Type: ApplicationFiled: March 23, 2006Publication date: March 26, 2009Applicants: Toyota Jidosha Kabushiki Kaisha, Kayaba Industry Co., LTDInventors: Hirofumi Inoue, Takenari Yamaguchi, Takuhiro Kondo
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Publication number: 20060142916Abstract: A height controlling apparatus for controlling at least one actual height as a relative position of (a) a body of a vehicle and (b) at least one wheel of the vehicle relative to each other, the apparatus including at least one height controlling actuator which changes the at least one actual height; and an actuator control device which controls the at least one height controlling actuator so that the at least one actual height approaches at least one target height.Type: ApplicationFiled: December 12, 2005Publication date: June 29, 2006Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toshio Onuma, Masaaki Tabata, Takenari Yamaguchi, Masaki Kanatani, Atsushi Mizuta, Hideki Ohashi, Koutaro Okimura