Patents by Inventor Tsukasa Shimizu
Tsukasa Shimizu 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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Publication number: 20170327094Abstract: A driving assistance control apparatus of a vehicle includes a blind area detector, a driving operation detector, and an electronic control unit. The blind area detector is configured to detect the presence or absence of a blind area as seen from the vehicle in a traveling direction of the vehicle. The driving operation detector is configured to detect driving operation of the driver. The electronic control unit is configured to perform automatic deceleration control of the vehicle based on detection of the presence of the blind area by the blind area detector. The electronic control unit is configured to start the automatic deceleration control, by referring to the driving operation of the driver after detection of the presence of the blind area by the blind area detector.Type: ApplicationFiled: May 5, 2017Publication date: November 16, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, National University Corporation Tokyo University of Agriculture and Technology, THE UNIVERSITY OF TOKYOInventors: Shintaro INOUE, Hideo INOUE, Pongsathorn RAKSINCHAROENSAK, Yuichi SAITO, Masao NAGAI, Takuma ITO, Tsukasa SHIMIZU
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Publication number: 20170087995Abstract: A vehicle includes an electric motor and a clutch disposed on a drive shaft. The electric motor is disposed on one side from a middle of the vehicle in the vehicle width direction, while the clutch and a sprocket are disposed on a second side from the middle of the vehicle in the vehicle width direction. The clutch is connected to a clutch lever so that the state of engagement of the clutch is changed in response to an operation of the clutch lever. It is thus possible to increase the degree of freedom in torque transmission control by a driver, to increase an output torque of the electric motor, and to reduce the size of the clutch.Type: ApplicationFiled: September 22, 2016Publication date: March 30, 2017Inventors: Jin ITO, Tsukasa SHIMIZU, Yuuichi YONEDA, Asaki FUJIWARA
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Publication number: 20170088013Abstract: An electric motorcycle includes a vehicle controller that outputs an instruction value based on an operation amount of at least an accelerator grip, and a motor driving unit that supplies a driving electric power in accordance with the instruction value to an electric motor. The vehicle controller is disposed outside a case that includes the motor driving unit disposed therein. The distance from the steering handle to the vehicle controller is shorter than the distance from the steering handle to the motor driving unit in a side view of the vehicle body, to simplify the cost of the electric wire and the work required to lay out the electric wire.Type: ApplicationFiled: September 26, 2016Publication date: March 30, 2017Inventors: Tsukasa SHIMIZU, Hideki SHIRAZAWA, Fuminao OBAYASHI
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Patent number: 9586582Abstract: In a driving support system, a target speed profile computing unit determines a target speed on the basis of a safe-condition confirmation end point that is set to a predetermined position in a travel direction of a host vehicle. The safe-condition confirmation end point is a point at which the host vehicle passes through a section following the safe-condition confirmation end point in advance of a moving object that appears from blind areas. In this way, by determining the target speed based on the safe-condition confirmation end point, the drive support control unit is able to support driving in consideration of driving action at the time when the driver actually causes the host vehicle to pass through near the blind areas. Thus, it is possible to appropriately support driving along a feeling of the driver such that inconvenience and a feeling of strangeness are reduced.Type: GrantFiled: June 10, 2013Date of Patent: March 7, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichi Nagata, Yuichi Kumai, Tsukasa Shimizu, Yoshihiro Ohama
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Publication number: 20170028995Abstract: A vehicle control apparatus includes a lane recognition unit configured to recognize a travel lane, a travel control unit configured to control the travelling of the vehicle such that the driving state of the vehicle becomes autonomous driving, a system margin time estimation unit configured to estimate a system margin time which is a time taken for the control of the travelling of the vehicle by the travel control unit to stop, a hand-over time estimation unit configured to estimate a hand-over time which is a time for a driver to be able to return the driving state to manual driving, and an HMI control unit configured to display the system margin time and the hand-over time on a display unit.Type: ApplicationFiled: June 13, 2016Publication date: February 2, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki MORI, Ryuji FUNAYAMA, Jun SATO, Ayako SHIMIZU, Yuichi KUMAI, Yuma KAWAMORI, Takeshi MATSUMURA, Yasuo SAKAGUCHI, Tsukasa SHIMIZU
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Publication number: 20170021765Abstract: A system for presenting information to an occupant of a vehicle mounted with an autonomous driving system, includes: a display unit configured to display the information; a display control unit configured to cause the display unit to display information in any one of display modes among a setting status display mode in which setting information is displayed, an operation status display mode in which travel information is displayed, and a recognition status display mode in which recognition result information of the autonomous driving system is displayed; and an acquisition unit configured to acquire an occupant's display mode switching instruction for switching the display mode, wherein the display control unit configured to switch the display mode of the display unit when the acquisition unit acquires the occupant's display mode switching instruction.Type: ApplicationFiled: June 27, 2016Publication date: January 26, 2017Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroki MORI, Ryuji FUNAYAMA, Jun SATO, Ayako SHIMIZU, Yuichi KUMAI, Yuma KAWAMORI, Takeshi MATSUMURA, Tsukasa SHIMIZU, Yasuo SAKAGUCHI
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Patent number: 9545968Abstract: An electric two-wheel vehicle includes a battery case that accommodates two batteries. The battery case is open in an upward direction. A head pipe supports a steering shaft and is connected to a front portion of the battery case. The battery case includes a beam portion that is disposed between the two batteries and extends rearward from a front wall portion of the battery case. Accordingly, it is possible to easily attach and detach the batteries with respect to a vehicle body for charging, protect the batteries, and secure the rigidity of a vehicle body frame.Type: GrantFiled: November 5, 2014Date of Patent: January 17, 2017Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Shidehiko Miyashiro, Hideki Shirazawa, Tsukasa Shimizu
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Publication number: 20160334796Abstract: A vehicle control apparatus includes: a storage apparatus configured to store a steering modification point of a vehicle and a vehicle speed target point of the vehicle that are associated with map information; and an electronic control unit configured to: detect a position of the vehicle; detect a travel direction of the vehicle; calculate a lane travel distance, the position of the vehicle, and the travel direction of the vehicle; generate, lane travel map data, a target direction of the vehicle, and a target vehicle speed of the vehicle, on the basis of the map information, the steering modification point, the vehicle speed target point, the position of the vehicle, and the travel direction of the vehicle; and output a control signal to control the vehicle on the basis of the position of the vehicle, the lane travel distance of the vehicle, and the lane travel map data.Type: ApplicationFiled: May 13, 2016Publication date: November 17, 2016Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, The University of Tokyo, National University Corporation Tokyo University of Agriculture and TechnologyInventors: Hideo INOUE, Masahiro MIO, Masayuki OKUWA, Tsukasa SHIMIZU, Minoru KAMATA, Takuma ITO, Pongsathorn RAKSINCHAROENSAK, Masao NAGAI
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Patent number: 9444317Abstract: A magnetic resistance changing mechanism for changing a magnetic resistance of a stator magnetic path including a stator yoke portion and each tooth portion by mechanically changing the stator magnetic path is provided. A pair of side protruded portions are formed on circumferential sides of a rotor side end portion of each tooth portion. The rotor side end face of each tooth portion is shaped so that a gap between the rotor side end face of each tooth portion and an outer periphery of the rotor is increased continuously or stepwisely from a circumferential intermediate portion of the rotor facing end face toward circumferential end portions thereof.Type: GrantFiled: July 31, 2013Date of Patent: September 13, 2016Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Tsukasa Shimizu, Haruyoshi Hino
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Patent number: 9424468Abstract: A position, behavior state and movement state of a moving object are detected, together with plural categories of track segment region and stationary object regions, using an environment detection section. A presence probability is applied to the detected track segment regions and stationary object regions and a presence probability map is generated, using a map generation section. A moving object position distribution and movement state distribution are generated by a moving object generation section based on the detected moving object position, behavior state and movement state, and recorded on the presence probability map. The moving object position distribution is moved by a position update section based on the moving object movement state distribution. The moved position distribution is changed by a distribution change section based on the presence probabilities of the presence probability map, and a future position distribution of the moving object is predicted on the presence probability map.Type: GrantFiled: September 8, 2011Date of Patent: August 23, 2016Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsukasa Shimizu, Yoshihiro Ohama, Shinichi Nagata, Masayuki Shimizu, Jun Sakugawa
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Publication number: 20150336587Abstract: A driving assist device 1 includes: an information acquisition unit 20 that detects a driving operation of a driver for the vehicle; a driving skill evaluation unit 24 that evaluates a driving skill of the driver on the basis of a history of the driving operation of the driver; and a driving assist control unit 28 that performs the driving assist control for the vehicle on the basis of the traveling state of the vehicle and the target traveling state. When the information acquisition unit 20 detects the driving operation of the driver during the driving assist control, the driving assist control unit 28 limits the amount of driving assist control for the vehicle according to the driving skill of the driver evaluated and reflects the driving operation amount of the driver in traveling control for the vehicle.Type: ApplicationFiled: May 18, 2015Publication date: November 26, 2015Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, THE UNIVERSITY OF TOKYO, National University Corporation Tokyo University of Agriculture and TechnologyInventors: Hideo INOUE, Shintaro INOUE, Masahiro MIO, Shingo SAKAIDA, Tsukasa SHIMIZU, Masayuki OKUWA, Minoru KAMATA, Takuma ITO, Pongsathorn RAKSINCHAROENSAK, Masao NAGAI
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Patent number: 9132775Abstract: An environmental movement detection section detects the speed of a vehicle and detects a mobile object in the vicinity of the vehicle. A collision probability prediction section predicts the probability of a prospective collision between the vehicle and the detected vicinity mobile object. On the basis of approach speeds, collision probabilities and sideward passing speeds when passing other mobile objects to sideward that have been determined from standard movements, a movement standard learning section learns relationships between approach speed, collision probability and sideward passing speed. On the basis of learning results at the movement standard learning section, a path characteristic point generation section determines a standard sideward passing speed for when passing the vicinity mobile object to sideward that corresponds with the detected approach speed and the predicted collision probability. Thus, standard mobile object states may be determined efficiently.Type: GrantFiled: November 21, 2011Date of Patent: September 15, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro Ohama, Tsukasa Shimizu, Shinichi Nagata, Takuya Kaminade
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Publication number: 20150142285Abstract: In a driving support system, a target speed profile computing unit determines a target speed on the basis of a safe-condition confirmation end point that is set to a predetermined position in a travel direction of a host vehicle. The safe-condition confirmation end point is a point at which the host vehicle passes through a section following the safe-condition confirmation end point in advance of a moving object that appears from blind areas. In this way, by determining the target speed based on the safe-condition confirmation end point, the drive support control unit is able to support driving in consideration of driving action at the time when the driver actually causes the host vehicle to pass through near the blind areas. Thus, it is possible to appropriately support driving along a feeling of the driver such that inconvenience and a feeling of strangeness are reduced.Type: ApplicationFiled: June 10, 2013Publication date: May 21, 2015Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichi Nagata, Yuichi Kumai, Tsukasa Shimizu, Yoshihiro Ohama
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Publication number: 20150122569Abstract: An electric two-wheel vehicle includes a battery case that accommodates two batteries. The battery case is open in an upward direction. A head pipe supports a steering shaft and is connected to a front portion of the battery case. The battery case includes a beam portion that is disposed between the two batteries and extends rearward from a front wall portion of the battery case. Accordingly, it is possible to easily attach and detach the batteries with respect to a vehicle body for charging, protect the batteries, and secure the rigidity of a vehicle body frame.Type: ApplicationFiled: November 5, 2014Publication date: May 7, 2015Inventors: Shidehiko MIYASHIRO, Hideki SHIRAZAWA, Tsukasa SHIMIZU
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Patent number: 8946967Abstract: A tooth portion of a stator is divided into first and second tooth portions and in a relatively movable manner between a first position in which a magnetic resistance between the tooth portions is small and a second position in which the magnetic resistance is relatively larger than in the first position. When the second tooth portion is in the first position, the following equation is satisfied: (total magnetic resistance of main magnetic circuit C1)<(total magnetic resistance of magnetic short-circuit C2)?(total magnetic resistance of magnetic circuit between permanent magnets C3). When the second tooth portion is in the second position, it is satisfied: (total magnetic resistance of the magnetic short-circuit C2)<(total magnetic resistance of the main magnetic circuit C1), and (total magnetic resistance of the magnetic short-circuit C2)?(total magnetic resistance of the magnetic circuit between permanent magnetics C3).Type: GrantFiled: December 20, 2012Date of Patent: February 3, 2015Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Tsukasa Shimizu, Haruyoshi Hino
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Patent number: 8946966Abstract: An electric rotating machine is provided. A tooth portion of a stator is divided into a first tooth portion and a second tooth portion that are movable relative to each other between a first position, in which a magnetic resistance between the first and second tooth portions is small, and a second position, in which the magnetic resistance is relatively large. In a state in which the second tooth portion is in the second position, a region from a stator yoke portion side end of a current-carrying winding disposed around the tooth portion to a rotor side end of a winding arrangeable region is divided into a first region and a second region. A current-carrying winding space factor in the first region is set to be relatively smaller than in the second region.Type: GrantFiled: December 20, 2012Date of Patent: February 3, 2015Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Tsukasa Shimizu, Haruyoshi Hino
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Publication number: 20140042853Abstract: A magnetic resistance changing mechanism for changing a magnetic resistance of a stator magnetic path including a stator yoke portion and each tooth portion by mechanically changing the stator magnetic path is provided. A pair of side protruded portions are formed on circumferential sides of a rotor side end portion of each tooth portion. The rotor side end face of each tooth portion is shaped so that a gap between the rotor side end face of each tooth portion and an outer periphery of the rotor is increased continuously or stepwisely from a circumferential intermediate portion of the rotor facing end face toward circumferential end portions thereof.Type: ApplicationFiled: July 31, 2013Publication date: February 13, 2014Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHAInventors: Tsukasa SHIMIZU, Haruyoshi HINO
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Publication number: 20130293395Abstract: An environmental movement detection section detects the speed of a vehicle and detects a mobile object in the vicinity of the vehicle. A collision probability prediction section predicts the probability of a prospective collision between the vehicle and the detected vicinity mobile object. On the basis of approach speeds, collision probabilities and sideward passing speeds when passing other mobile objects to sideward that have been determined from standard movements, a movement standard learning section learns relationships between approach speed, collision probability and sideward passing speed. On the basis of learning results at the movement standard learning section, a path characteristic point generation section determines a standard sideward passing speed for when passing the vicinity mobile object to sideward that corresponds with the detected approach speed and the predicted collision probability. Thus, standard mobile object states may be determined efficiently.Type: ApplicationFiled: November 21, 2011Publication date: November 7, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihiro Ohama, Tsukasa Shimizu, Shinichi Nagata, Takuya Kaminade
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Publication number: 20130223686Abstract: A position, behavior state and movement state of a moving object are detected, together with plural categories of track segment region and stationary object regions, using an environment detection section. A presence probability is applied to the detected track segment regions and stationary object regions and a presence probability map is generated, using a map generation section. A moving object position distribution and movement state distribution are generated by a moving object generation section based on the detected moving object position, behavior state and movement state, and recorded on the presence probability map. The moving object position distribution is moved by a position update section based on the moving object movement state distribution. The moved position distribution is changed by a distribution change section based on the presence probabilities of the presence probability map, and a future position distribution of the moving object is predicted on the presence probability map.Type: ApplicationFiled: September 8, 2011Publication date: August 29, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tsukasa Shimizu, Yoshihiro Ohama, Shinichi Nagata, Masayuki Shimizu, Jun Sakugawa
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Patent number: 5225033Abstract: A process for producing a magnetic head of the floating type having a head portion and a slider portion comprises preparing a core block 7 having arranged on a plane a head forming portion and a slider forming portion for providing the head portion and the slider portion, respectively, and forming at least one pair of track width defining grooves 14, 14 across a gap spacer 4 by dry-etching a surface 8 of the core block 7 which is to be opposed to media to form a magnetic gap portion G by a portion of the gap spacer of a predetermined track width between the pair of grooves.Type: GrantFiled: November 18, 1991Date of Patent: July 6, 1993Assignee: Sanyo Electric Co., Ltd.Inventors: Takashi Ogura, Takashi Yanai, Hiroyuki Okuda, Takao Yamano, Tsukasa Shimizu