Patents by Inventor Katsuhiko Iwazaki
Katsuhiko Iwazaki 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: 11887334Abstract: The in-vehicle device transfers the selected image selected by the user from the photographed images stored in the storage device and the selected vehicle state, which is the vehicle state when the selected image is captured, to the form terminal. The portable device transmits the selected image and the selected vehicle state to the image management server only when the transmission is permitted by the user. The image management server determines whether or not the selected image is a rare image using the selected image and the selected vehicle state, and stores the selected image in the image storage device when the selected image is determined to be a rare image.Type: GrantFiled: September 8, 2021Date of Patent: January 30, 2024Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Katsuhiko Iwazaki, Yu Watanabe
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Patent number: 11695902Abstract: The in-vehicle device transfers the selected image selected by the user from the photographed images stored in the storage device and the selected vehicle state, which is the vehicle state when the selected image is captured, to the portable device. The portable device executes a portable side determination process for determining whether or not the selected image is a rare image by using the selected image and the selected vehicle state, and transmits the selected image determined to be a rare image by the portable side determination process and the selected vehicle state to the image management server only when the transmission is permitted by the user. The image management server stores the selected image and the selected vehicle state transmitted from the portable device in the image storage device.Type: GrantFiled: September 8, 2021Date of Patent: July 4, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Katsuhiko Iwazaki, Yu Watanabe
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Publication number: 20220076445Abstract: The in-vehicle device transfers the selected image selected by the user from the photographed images stored in the storage device and the selected vehicle state, which is the vehicle state when the selected image is captured, to the form terminal. The portable device transmits the selected image and the selected vehicle state to the image management server only when the transmission is permitted by the user. The image management server determines whether or not the selected image is a rare image using the selected image and the selected vehicle state, and stores the selected image in the image storage device when the selected image is determined to be a rare image.Type: ApplicationFiled: September 8, 2021Publication date: March 10, 2022Inventors: Katsuhiko IWAZAKI, Yu WATANABE
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Publication number: 20220078378Abstract: The in-vehicle device executes the vehicle side determination process for determining whether the selected image is a rare image using the selected image from photographed image stored in storage device and the detected vehicle state when photographing the selected image and transfers the vehicle state and the selected image when the selected image is determined to be a rare image by the execution of the vehicle side determination process to the portable device. The portable device transmits the selected image and the selected vehicle state to the image management server only when the transmission is permitted by the user. The image management server stores the selected image and the selected vehicle state transmitted from the portable terminal in the image storage device.Type: ApplicationFiled: September 8, 2021Publication date: March 10, 2022Inventors: Katsuhiko IWAZAKI, Yu WATANABE
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Publication number: 20220078379Abstract: The in-vehicle device transfers the selected image selected by the user from the photographed images stored in the storage device and the selected vehicle state, which is the vehicle state when the selected image is captured, to the portable device. The portable device executes a portable side determination process for determining whether or not the selected image is a rare image by using the selected image and the selected vehicle state, and transmits the selected image determined to be a rare image by the portable side determination process and the selected vehicle state to the image management server only when the transmission is permitted by the user. The image management server stores the selected image and the selected vehicle state transmitted from the portable device in the image storage device.Type: ApplicationFiled: September 8, 2021Publication date: March 10, 2022Inventors: Katsuhiko IWAZAKI, Yu WATANABE
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Patent number: 8830260Abstract: Afterimages of a move-target image which is moved at high speed are reduced even if a display unit with slow response characteristics is used.Type: GrantFiled: December 8, 2009Date of Patent: September 9, 2014Assignee: Yazaki CorporationInventors: Kazuyoshi Ogasawara, Katsuhiko Iwazaki
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Patent number: 8676441Abstract: An object of the present invention is to provide a steering assist device which can perform steering assist control having excellent capability to follow up a traveling path by increasing the steering amount in the steering control at a curve entrance. A steering assist device of the present invention is a steering assist device 1 for calculating a steering target value based on a shape of a traveling path on which a vehicle travels, and assisting steering according to the steering target value, wherein it is determined whether the vehicle is traveling a curve entrance of the traveling path, and when it is determined that the vehicle is traveling a curve entrance, a change in the steering target value is increased compared with the case of traveling a part of the path other than a curve entrance. As a result, a steering amount to turn the steering wheel can be increased at a curve entrance, and a delay in the turning of the steering wheel at a curve entrance can be suppressed.Type: GrantFiled: August 10, 2007Date of Patent: March 18, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Quy Hung Nguyen Van, Seiji Kawakami, Katsuhiko Iwazaki, Chumsamutr Rattapon, Hiroaki Kataoka
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Patent number: 8150581Abstract: In a driving assistance system having an actuator (16) for steering steered wheels of a vehicle, a positional deviation detecting unit (9) detects a deviation of a position of the vehicle from a forward travel path of the vehicle based on information around the vehicle. A steering control variable determination unit (2) determines a steering control variable to cancel the deviation. If a vehicle speed detected by a vehicle speed detecting unit is equal to or greater than a predetermined speed, the steering control variable determined by a steering control variable determination unit (2) decreases with an increase of the vehicle speed under the condition that the deviation of the position of the vehicle from the forward travel path is same. The driving assistance system can reduce a driver's discomfort caused by the steering control through the actuator (16) when the vehicle is running at a high speed.Type: GrantFiled: November 30, 2006Date of Patent: April 3, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Katsuhiko Iwazaki, Seiji Kawakami, Hiroaki Kataoka, Chumsamutr Rattapon
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Patent number: 8118126Abstract: A steering assist system for applying a steering torque reduces the influence of a time-dependent steering control amount on an assist steering torque when a predetermined driving operation by a driver is detected. Thus, the influence of the time-dependent steering control amount on the applied steering torque, which increases when the period of time over which actual moving state deviates from the target moving state increases is reduced when the driver makes the predetermined driving operation. Thus, it is possible to avoid the problem where steering feel degrades because the steering torque increases over time.Type: GrantFiled: August 21, 2007Date of Patent: February 21, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Chumsamutr Rattapon, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
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Patent number: 8086372Abstract: The present invention aims at providing a steering assistance apparatus which can accurately detect a curve exit of a running path and perform steering assistance control with an excellent running path following capability. The steering assistance apparatus of the present invention is a steering assistance apparatus 1 for providing a steering mechanism with a steering torque such that a vehicle runs along a running path according to an image capturing the running path in front of the vehicle, which estimates a curve direction of the running path by processing the image, estimates a steering direction of a driver of the vehicle according to a steering operation of the driver, and determines that the vehicle is running through a curve exit according to a fact that the estimated curve direction and steering direction do not coincide with each other. This makes it possible to determine the curve exit of the running path accurately and perform appropriate steering assistance control.Type: GrantFiled: August 6, 2007Date of Patent: December 27, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuji Okuda, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Chumsamutr Rattapon
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Patent number: 8041480Abstract: A future yaw rate ?(t) is estimated according to a current yaw rate ?(t) and a steering angular velocity. As compared with directly detecting the yaw rate ?(t) from a vehicle body, calculating the yaw rate ?(t) from a steering operation can attain a yaw rate having a phase advanced by a time lag ?t, whereby the future yaw rate ?(t) can be estimated accurately.Type: GrantFiled: January 28, 2008Date of Patent: October 18, 2011Assignee: Toyota Jidosha Kabushiki KaishaInventor: Katsuhiko Iwazaki
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Publication number: 20110235943Abstract: Afterimages of a move-target image which is moved at high speed are reduced even if a display unit with slow response characteristics is used.Type: ApplicationFiled: December 8, 2009Publication date: September 29, 2011Applicant: Yazaki CorporationInventors: Kazuyoshi Ogasawara, Katsuhiko Iwazaki
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Patent number: 7692534Abstract: In deviation prevention support ECU 10 in driving operation support system 1, an applied torque by steering torque applier 17 is set based on a vehicle speed of a vehicle. The applied torque is set to increase with increase of the vehicle speed. An upper limit according to the vehicle speed is set for this applied torque. Furthermore, in a Start interval in application of the applied torque, a rate of increasing to reach a maximum is determined according to the maximum of the applied torque. In a close interval, the applied torque is decreased at a rate different from that in the Start interval, and the absolute rate of increasing the torque in the Start interval is set to be larger than the absolute rate of decreasing the torque in the close interval.Type: GrantFiled: January 8, 2008Date of Patent: April 6, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Kataoka, Seiji Kawakami, Satoru Niwa, Katsuhiko Iwazaki, Chumsamutr Rattapon
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Patent number: 7688186Abstract: A vehicle speed V is read (step S1), V is compared with a first threshold Vth1 (step S2), and, when V is not less than Vth1, a warning torque is set smaller with increase in V (step S3). When V is less than Vth1, V is further compared with a second threshold Vth2 (step S4), and when V is less than Vth2, the warning torque is set approximately in proportion to the vehicle speed (step S5); when V is not less than Vth2 and is less than Vth1, the warning torque is set at a predetermined constant value (step S6).Type: GrantFiled: May 26, 2006Date of Patent: March 30, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Kataoka, Seiji Kawakami, Katsuhiko Iwazaki, Chumsamutr Rattapon
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Publication number: 20100004822Abstract: The present invention aims at providing a steering assistance apparatus which can accurately detect a curve exit of a running path and perform steering assistance control with an excellent running path following capability. The steering assistance apparatus of the present invention is a steering assistance apparatus 1 for providing a steering mechanism with a steering torque such that a vehicle runs along a running path according to an image capturing the running path in front of the vehicle, which estimates a curve direction of the running path by processing the image, estimates a steering direction of a driver of the vehicle according to a steering operation of the driver, and determines that the vehicle is running through a curve exit according to a fact that the estimated curve direction and steering direction do not coincide with each other. This makes it possible to determine the curve exit of the running path accurately and perform appropriate steering assistance control.Type: ApplicationFiled: August 6, 2007Publication date: January 7, 2010Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuji Okuda, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Chumsamutr Rattapon
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Publication number: 20090265062Abstract: An object of the present invention is to provide a steering assist device which can perform steering assist control having excellent capability to follow up a traveling path by increasing the steering amount in the steering control at a curve entrance. A steering assist device of the present invention is a steering assist device 1 for calculating a steering target value based on a shape of a traveling path on which a vehicle travels, and assisting steering according to the steering target value, wherein it is determined whether the vehicle is traveling a curve entrance of the traveling path, and when it is determined that the vehicle is traveling a curve entrance, a change in the steering target value is increased compared with the case of traveling a part of the path other than a curve entrance. As a result, a steering amount to turn the steering wheel can be increased at a curve entrance, and a delay in the turning of the steering wheel at a curve entrance can be suppressed.Type: ApplicationFiled: August 10, 2007Publication date: October 22, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Quy Hung Nguyen Van, Seiji Kawakami, Katsuhiko Iwazaki, Chumsamutr Rattapon, Hiroaki Kataoka
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Patent number: 7599773Abstract: A parking assist device for assisting parking operation to a target parking position includes an initial position setting device for setting an initial position of the target parking position to park a vehicle, a designation display showing the target parking position, a display position calculation device for calculating an initial display position of the designation display showing the target parking position at a screen showing vehicle surroundings based on the initial position determined by the initial position setting device, and an initial display position shifting device for shifting the initial display position of the designation display to a position within a display range on the screen in case the initial display position calculated by the display position calculation device is positioned outside of the display range on the screen.Type: GrantFiled: August 30, 2004Date of Patent: October 6, 2009Assignee: Aisin Seiki Kabushiki KaishaInventors: Yuu Tanaka, Yoshifumi Iwata, Hideyuki Iwakiri, Hisashi Satonaka, Yuichi Kubota, Tomohiko Endo, Akira Matsui, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
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Publication number: 20090194350Abstract: A steering assist system for applying a steering torque reduces the influence of a time-dependent steering control amount on an assist steering torque when a predetermined driving operation by a driver is detected. Thus, the influence of the time-dependent steering control amount on the applied steering torque, which increases when the period of time over which actual moving state deviates from the target moving state increases is reduced when the driver makes the predetermined driving operation. Thus, it is possible to avoid the problem where steering feel degrades because the steering torque increases over time.Type: ApplicationFiled: August 21, 2007Publication date: August 6, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Chumsamutr Rattapon, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka
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Patent number: 7557732Abstract: A vehicle speed V is compared with a threshold Vth; when V is less than Vth, TLC is set to an initial value t0; when V is not less than Vth, TLC is set shorter with increase in V. Then TLC is compared with a predetermined value t th, and when TLC is less than t th, TLC is replaced by t th being a lower limit. This improves compatibility between a reduction in an occurrence frequency of needless warnings and a guarantee of a deviation margin time.Type: GrantFiled: May 30, 2006Date of Patent: July 7, 2009Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroaki Kataoka, Seiji Kawakami, Katsuhiko Iwazaki, Chumsamutr Rattapon
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Patent number: 7555379Abstract: A guiding device is disclosed for guiding a vehicle to a target position by controlling the steering angle while estimating the vehicle position at least based on a steering angle value, characterized in that, in estimating the vehicle position, a slowing operation with respect to a change dp in a moving distance of the vehicle is applied to a turning curvature g(Str(p)) estimated based on the steering angle value in order to compensate for the delay due to tire deformation, whereby the delay-compensated turning curvature y(p) is obtained.Type: GrantFiled: July 15, 2004Date of Patent: June 30, 2009Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seki Kabushiki KaishaInventors: Tomohiko Endo, Hisashi Satonaka, Yuichi Kubota, Akira Matsui, Hideyuki Iwakiri, Toru Sugiyama, Seiji Kawakami, Katsuhiko Iwazaki, Hiroaki Kataoka, Yuu Tanaka