Patents by Inventor Shinjiro Saito
Shinjiro Saito 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: 20140145498Abstract: Vehicular motion control system comprising controller that independently controls driving force and/or braking force of each of four wheels and a turning direction sensor that senses a turning direction, and with an acceleration/deceleration command generator that generates an acceleration/deceleration command based upon a sensed steering angle and sensed vehicle speed and a driving force/braking force distributor that determines the distribution of driving force or driving torque and/or braking force or braking torque of each wheel, and driving force/braking force distributor determines based upon the acceleration/deceleration command and the turning direction so that more driving force or more driving torque and/or more braking force or more braking torque are/is distributed to the inside front wheel in turning than the outside front wheel in turning and more driving force or more driving torque and/or more braking force or more braking torque are/is distributed to the outside rear wheel.Type: ApplicationFiled: September 28, 2011Publication date: May 29, 2014Inventors: Makoto Yamakado, Junya Takahashi, Shinjiro Saito, Toshiya Oosawa
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Publication number: 20140095006Abstract: A vehicle control device 50, a controller 100, an inverter control device 30 and a steering control device 32 constitute a control device that executes control to give a yaw moment to a vehicle 1 so as to make the vehicle 1 travel while meandering around the center of trolley wires 3R and 3L based on image information acquired by a camera 15. The control device converts an image acquired by the camera 15 into coordinate information, calculates at least one representative point of the vehicle 1 and at least one target point situated on the trolley wire 3R/3L based on the coordinate information, sets a fluctuating point which fluctuates with reference to the target point, and executes control to give a yaw moment to the vehicle 1 so that the representative point approaches the fluctuating point. With this configuration, uneven wear of the sliders can be prevented and the operating load on the driver during the trolley traveling can be lightened considerably.Type: ApplicationFiled: June 11, 2012Publication date: April 3, 2014Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Shinjiro Saito, Kichio Nakajima
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Publication number: 20140032028Abstract: A vehicle control device 50, a controller 100, an inverter control device 30 and a steering control device 32 constitute a control device 200 which executes control to give a yaw moment to a vehicle body 1 to make the vehicle body 1 travel while tracing a trolley wire 3R, 3L based on image information detected by a camera 15. The control device 200 converts an image acquired by the camera 15 into coordinate information, calculates at least one representative point of the vehicle body 1 and at least one target point situated on the trolley wire 3R, 3L based on the coordinate information, and executes the control to give a yaw moment to the vehicle body 1 so that the representative point approaches the target point. With this configuration, an electrically driven dump truck capable of lightening the operating load on the driver during the trolley traveling is provided.Type: ApplicationFiled: April 5, 2012Publication date: January 30, 2014Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Shinjiro Saito, Kichio Nakajima
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Publication number: 20140005871Abstract: A vehicle control device 50, a controller 100, an inverter control device 30 and a steering control device 32 constitute a control device 200 which controls elevation of sliders 4Ra and 4La of power collectors 4R and 4L based on information detected by a trolley wire detecting device (camera) 15. The control device 200 calculates positional relationship between a slider and a trolley wire 3R/3L based on the information detected by the trolley wire detecting device. When the slider has deviated from a prescribed range for being in contact with the trolley wire, the control device executes control to prohibit an operation for elevating the sliders or to lower the sliders when the sliders have been elevated. With this configuration, an electrically driven dump truck capable of lightening the operating load on the driver during the trolley traveling is provided.Type: ApplicationFiled: April 5, 2012Publication date: January 2, 2014Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.Inventors: Shinjiro Saito, Kichio Nakajima
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Patent number: 8600657Abstract: According to conventional art, if there is an obstacle on the left of a vehicle, a control threshold value is set so as to avoid the obstacle. If the control threshold value is exceeded, the vehicle is controlled in accordance with a deviation quantity so as to return to a position where the control threshold avoids being exceeded. However, even if a risky oncoming vehicle is approaching the vehicle on the right, the vehicle is controllably moved toward the oncoming vehicle. Thus, disadvantageously, a driver has a sense of fear or discomfort.Type: GrantFiled: July 28, 2009Date of Patent: December 3, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shinjiro Saito, Atsushi Yokoyama, Toshiharu Sugawara, Tatsuya Yoshida, Akira Takahashi
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Publication number: 20130131947Abstract: A vehicle motion control device includes curve shape acquisition means for acquiring a shape of a curve present in front of a currently traveling vehicle, vehicle position acquisition means for acquiring a position of the vehicle, and vehicle motion control arithmetic means for computing, on the basis of the shape of the curve and the position of the vehicle, a command value relating to longitudinal acceleration to be caused to the vehicle. During a time interval from before the vehicle reaches a near end of the curve, until the vehicle has approached the curve and traveled to a site having a constant or maximum curvature of the curve, the vehicle motion control arithmetic means computes a plurality of different negative longitudinal acceleration command values. Thus, even when there is no lateral motion, the vehicle motion control device accelerates/decelerates the vehicle while improving a driver's feeling of slowdown.Type: ApplicationFiled: July 19, 2011Publication date: May 23, 2013Applicant: Hitachi Automotive Systems, Ltd.Inventors: Junya Takahashi, Makoto Yamakado, Shinjiro Saito
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Patent number: 8346436Abstract: A driving support system includes a lane detecting unit for detecting lanes around a vehicle, a route correcting unit for correcting a route along which the vehicle is expected to travel taking into consideration an obstacle on the route after the route has been recognized by lanes detected by the lane detecting unit, and a control unit for controlling the vehicle on the basis of the positional relation between the corrected route determined by the route correcting unit and the vehicle.Type: GrantFiled: September 21, 2011Date of Patent: January 1, 2013Assignee: Hitachi, Ltd.Inventors: Atsushi Yokoyama, Shinjiro Saito, Masatsugu Arai, Tatsuya Yoshida
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Publication number: 20120209489Abstract: There is provided a vehicle motion control device that defines a pre-curve entry deceleration amount taking the deceleration amount that occurs while traveling a curve into consideration. A vehicle motion control device 6 comprises: a lateral motion-coordinated acceleration/deceleration calculation means 11 that calculates lateral motion-coordinated acceleration/deceleration Gx_dGy, which is the longitudinal acceleration/deceleration of a vehicle 0 that is coordinated with lateral motion, in accordance with lateral jerk Gy_max that acts on the vehicle 0 at curve entry; and a vehicle speed control device 12, which calculates pre-curve entry deceleration Gx_preC that is to be generated with respect to the vehicle 0 before entering the curve, taking lateral motion-coordinated acceleration/deceleration Gx_dGy calculated by the lateral motion-coordinated acceleration/deceleration calculation device 11 into consideration.Type: ApplicationFiled: August 10, 2010Publication date: August 16, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Shinjiro Saito, Junya Takahashi, Atsushi Yokoyama, Makoto Yamakado
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Publication number: 20120179349Abstract: There is provided a vehicle drive control system that feels less unnatural and that enables an improvement in safety performance. A vehicle motion control system capable of independently controlling a driving force and a braking force of four wheels comprises: a first mode (G-Vectoring control) in which substantially the same driving force and braking force are generated with respect to left and right wheels among the four wheels based on a longitudinal acceleration/deceleration control command that is coordinated with the vehicle's lateral motion; and a second mode (sideslip prevention control) in which different driving forces and braking forces are generated with respect to the left and right wheels among the four wheels based on a target yaw moment derived from the vehicle's sideslip information, wherein the first mode is selected when the target yaw moment is equal to or less than a pre-defined threshold, and the second mode is selected when the target yaw moment is greater than the threshold (FIG. 11).Type: ApplicationFiled: August 2, 2010Publication date: July 12, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Makoto Yamakado, Shinjiro Saito, Atsushi Yokoyama, Junya Takahashi, Tatsuya Yoshida
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Patent number: 8165776Abstract: A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.Type: GrantFiled: August 20, 2008Date of Patent: April 24, 2012Assignee: Hitachi, Ltd.Inventors: Toshiharu Sugawara, Atsushi Yokoyama, Takaomi Nishigaito, Masatoshi Hoshino, Tatsuya Yoshida, Jun Kubo, Shinjiro Saito
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Publication number: 20120010808Abstract: A driving support system includes a lane detecting unit for detecting lanes around a vehicle, a route correcting unit for correcting a route along which the vehicle is expected to travel taking into consideration an obstacle on the route after the route has been recognized by lanes detected by the lane detecting unit, and a control unit for controlling the vehicle on the basis of the positional relation between the corrected route determined by the route correcting unit and the vehicle.Type: ApplicationFiled: September 21, 2011Publication date: January 12, 2012Applicant: Hitachi, Ltd.Inventors: Atsushi YOKOYAMA, Shinjiro Saito, Masatsugu Arai, Tatsuya Yoshida
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Publication number: 20110187515Abstract: According to conventional art, if there is an obstacle on the left of a vehicle, a control threshold value is set so as to avoid the obstacle. If the control threshold value is exceeded, the vehicle is controlled in accordance with a deviation quantity so as to return to a position where the control threshold avoids being exceeded. However, even if a risky oncoming vehicle is approaching the vehicle on the right, the vehicle is controllably moved toward the oncoming vehicle. Thus, disadvantageously, a driver has a sense of fear or discomfort.Type: ApplicationFiled: July 28, 2009Publication date: August 4, 2011Applicant: Hitachi Automotive Systems, Ltd.Inventors: Shinjiro Saito, Atsushi Yokoyama, Toshiharu Sugawara, Tatsuya Yoshida, Akira Takahashi
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Publication number: 20110101041Abstract: A sliding nozzle device automatically performs a series of operations of loading and unloading pressure between plates and opening and closing a slide frame; maintaining the pressure without additional operations; and operates at full stroke during molten steel flow control. An auxiliary plate-exchanging mechanism includes slide axes moving in the same direction as a hydraulic cylinder operates, and an arm having a proximal end placed around the slide axis. The plate-exchanging mechanism is fixed on an upside frame. A first engagement pin mounted on the proximal end of the arm is inserted in a first engagement groove in a first engagement member engaging with the slide axis, and second engagement pins mounted on bearings are inserted in second engagement grooves in the slide axes. With movement of the slide axes the engagement pins respectively move in the engagement grooves, thereby rotating the slide axes and the arm.Type: ApplicationFiled: May 15, 2009Publication date: May 5, 2011Applicant: Krosaki Harima CorporationInventors: Junichi Funato, Hiroyuki Tofuku, Yasuo Kawano, Shinjiro Saito
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Publication number: 20110087415Abstract: A deceleration aiding device capable of achieving deceleration control which reflects a driver's intention more accurately according to a driver's intention to decelerate a vehicle, and by which the acceleration of the vehicle is difficult to exceed a road surface friction coefficient is provided.Type: ApplicationFiled: July 28, 2009Publication date: April 14, 2011Applicant: Hitachi Automotive Systems, Ltd.Inventors: Atsushi Yokoyama, Shinjiro Saito, Tatsuya Yoshida
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Publication number: 20110073603Abstract: The storage case has a structure in which a sample storage case (S) contained in a storage case is cooled and held at a low temperature by a Stirling refrigerator. A detection element is disposed in a room-temperature area of the storage case. The chemical or physical property of the detection element varies when a contaminant adheres to the detection element. Entrance of a contaminant into the storage case can be checked by contactlessly checking the detection element from the outside of the storage case. The storage case includes a server for receiving the result of the check from the detection device, storing the result, and setting up connection via a communication line to at least two out of a terminal operable by the forwarder, a terminal operable by the carrier, and a terminal operable by the recipient to transmit the result to the two.Type: ApplicationFiled: April 20, 2009Publication date: March 31, 2011Applicant: HITACHI, LTD.Inventors: Norihide Saho, Mami Hakari, Hiroyuki Tanaka, Sachi Tanaka, Yoshihito Yasukawa, Akira Nomiyama, Shinjiro Saito, Azusa Amino, Daisuke Matsuka, Kohtaro Chiba, Hiroyuki Toyoda, Naoko Nakayama, Isao Kitagawa, Isao Hagiya
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Publication number: 20100250083Abstract: A vehicle dynamics control device includes: a control unit that executes braking/driving torque control for controlling at least either a braking torque or a driving torque at each wheel based upon at least either external information pertaining to an environment of a vehicle or vehicle information that includes operation input information indicating an operation input by a driver and a vehicle dynamics information.Type: ApplicationFiled: February 19, 2010Publication date: September 30, 2010Applicant: Hitachi, Ltd.Inventors: Junya TAKAHASHI, Makoto YAMAKADO, Atsushi YOKOYAMA, Shinjiro SAITO
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Publication number: 20090088966Abstract: A driving support system includes a lane detecting unit for detecting lanes around a vehicle, a route correcting unit for correcting a route along which the vehicle is expected to travel taking into consideration an obstacle on the route after the route has been recognized by lanes detected by the lane detecting unit, and a control unit for controlling the vehicle on the basis of the positional relation between the corrected route determined by the route correcting unit and the vehicle.Type: ApplicationFiled: August 20, 2008Publication date: April 2, 2009Applicant: Hitachi, Ltd.Inventors: Atsushi YOKOYAMA, Shinjiro SAITO, Masatsugu ARAI, Tatsuya YOSHIDA
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Publication number: 20090088925Abstract: A drive assist system includes an assist starting part starting assist, a detection part detecting relative distances and speeds between a vehicles, a calculation part calculating collision risks when changing a lane by the basis of the relative distances and speeds, a first judgment part judging whether the lane can be changed by the relative distances, speeds and the collision risks, a decision part deciding a target space for lane change by the relative distances and speeds when the lane cannot be changed, a second judgment part judging whether a lane changeable space is in the target space, a setting part setting a target speed for the vehicle go to a lane change waiting position when no space and to setting a target speed the vehicle enters a lane changeable position when there is the space, and a control part controlling a speed of the vehicle reaches the target speed.Type: ApplicationFiled: August 20, 2008Publication date: April 2, 2009Applicant: Hitachi, Ltd.Inventors: Toshiharu SUGAWARA, Atsushi Yokoyama, Takaomi Nishigaito, Masatoshi Hoshino, Tatsuya Yoshida, Jun Kubo, Shinjiro Saito
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Patent number: D698376Type: GrantFiled: September 28, 2012Date of Patent: January 28, 2014Assignee: Krosakiharima CorporationInventors: Junichi Funato, Shunji Sadano, Shinjiro Saito