Patents by Inventor Masaki Maruyama
Masaki Maruyama 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: 8577553Abstract: A lateral motion control apparatus for a vehicle includes a control stop determination unit that determines whether or not to stop the control for the control target by the control target control unit based on a steering operation amount inputted by a driver of the vehicle, and a degeneration control amount determination unit that determines a degeneration control amount for the control target such that the control amount for the control target degenerates after the time when the control stop determination unit has determined that the control for the control target is to be stopped. When the control stop determination unit has determined that the control for the control target is to be stopped, the control target control unit controls the control target based on the degeneration control amount determined by the degeneration control amount determination unit.Type: GrantFiled: October 27, 2011Date of Patent: November 5, 2013Assignees: Aisin Seiki Kabushiki Kaisha, Denso Corporation, Advics Co., Ltd.Inventors: Hirofumi Nitta, Yuichi Mizutani, Mitsuhiro Tokimasa, Junpei Tatsukawa, Yasuhiko Mukai, Yoshihisa Ogata, Hajime Kumabe, Masatoshi Hanzawa, Masaki Maruyama
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Patent number: 8565935Abstract: The lateral motion control apparatus calculates lateral motion control amounts for a plurality of control targets that operate cooperatively in order to change the lateral motion amount of the vehicle based on a target value for the lateral motion amount of the vehicle, and control the plurality of control targets based on the calculated lateral motion control amounts. Meanwhile, it is determined whether or not the control of the plurality of control targets is to be stopped. When it has been determined that the control of the plurality of control targets is to be stopped, lateral motion degeneration control amounts are determined for each of the plurality of control targets so that the lateral motion control amounts of the plurality of control targets degenerate starting at that time, and the plurality of control targets are controlled based on the determined lateral motion degeneration control amounts.Type: GrantFiled: October 27, 2011Date of Patent: October 22, 2013Assignees: Aisin Seiki Kabushiki Kaisha, Denso Corporation, Advics Co., Ltd.Inventors: Yuichi Mizutani, Hirofumi Nitta, Yasuhiko Mukai, Mitsuhiro Tokimasa, Junpei Tatsukawa, Yoshihisa Ogata, Hajime Kumabe, Masatoshi Hanzawa, Masaki Maruyama
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Publication number: 20130255249Abstract: A vehicle brake device is provided with a master cylinder, a master piston slidably arranged in the master cylinder, an input piston slidably arranged in the master cylinder to be separated from the master piston and defining a separation chamber, an input piston moving amount detecting section for detecting the moving amount of the input piston, a master piston moving amount calculating section for calculating the moving amount of the master piston based on the moving amount of the input piston, and a contact inferring section for inferring the contact of the input piston with the master piston based on the moving amount of the input piston and the moving amount of the master piston.Type: ApplicationFiled: March 25, 2013Publication date: October 3, 2013Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHAInventors: Masaki Maruyama, Yoshio Masuda, Akitaka Nishio, Kiyoyuki Uchida, Masaaki Komazawa, Akira Sakai, Yasuji Mizutani, Yusuke Kamiya
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Patent number: 8548682Abstract: A lateral motion control apparatus includes a target value obtaining unit, a control amount calculation unit, a steering intent determination unit that determines whether a driver of the vehicle is steering with intent, and a control object control unit that controls the control object so as to control the control object based on the control amount when the driver is not steering with intent, and to stop the control of the control object when the driver is steering with intent. The steering intent determination unit includes a steering operation amount obtaining unit and a threshold value setting unit that sets a threshold value for the steering operation amount based on the target value, and determines whether or not the driver is steering with intent by comparing the magnitude of the steering operation amount with the threshold value.Type: GrantFiled: October 27, 2011Date of Patent: October 1, 2013Assignees: Aisin Seiki Kabushiki Kaisha, Denso Corporation, Advics Co., Ltd.Inventors: Hirofumi Nitta, Yuichi Mizutani, Mitsuhiro Tokimasa, Junpei Tatsukawa, Yasuhiko Mukai, Yoshihisa Ogata, Hajime Kumabe, Masatoshi Hanzawa, Masaki Maruyama
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Publication number: 20130235251Abstract: A zoom lens includes: first, second, third and fourth lens groups having negative power, positive power, negative power and positive power, respectively, and sequentially arranged from an object side toward an image side. When the magnification at a wide angle side is changed to the magnification at a telescopic side, the first lens group is so moved along an optical axis that the distance between the first lens group and the second lens group decreases, and the second third and fourth lens groups are moved from the image side toward the object side, the third lens group is moved along the optical axis for focusing, and the zoom lens satisfies the following conditional expression (1) ?2.0<f3/?(fw×ft)??0.3 ??(1) where f3, fw and ft represent the focal lengths of the third lens group, the entire lens system at the wide angle end, and the entire lens system at the telescopic end, respectively.Type: ApplicationFiled: February 26, 2013Publication date: September 12, 2013Applicant: SONY CORPORATIONInventors: Makoto Kanai, Motoyuki Otake, Masaharu Hosoi, Toshihiro Sunaga, Masaki Maruyama
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Patent number: 8527175Abstract: A braking/driving control apparatus for a vehicle includes a basic control unit which calculates and outputs a target axle torque based on a target acceleration and a driving resistance of the vehicle and which determines an axle torque for a power train of the vehicle and an axle torque for a braking apparatus of the vehicle based on the calculated target axle torque, a sliding-down prediction determining unit which determines whether there is a possibility that the vehicle slides down rearwards on an uphill road, and a sliding-down preventing process executing unit which performs a process for reducing a possibility that the vehicle slides down, based on a determination result of the sliding-down prediction determining unit.Type: GrantFiled: June 9, 2011Date of Patent: September 3, 2013Assignees: Advics Co., Ltd., DENSO CORPORATIONInventors: Masayoshi Takeda, Masaki Maruyama, Yukio Mori, Kazuya Taniguchi, Daisuke Tokumochi
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Patent number: 8428842Abstract: A speed control device for a vehicle includes a vehicle speed obtaining means obtaining a vehicle speed, a shape obtaining means obtaining a curve shape, a position obtaining means obtaining a positional relationship between a curve and the vehicle, a target vehicle speed determining means determining a target vehicle speed based on the curve shape and the positional relationship, a vehicle speed controlling means controlling the vehicle speed based on the target vehicle speed and the vehicle speed, and an acceleration operation quantity obtaining means obtaining an operation quantity of an acceleration operating member operated by a driver, wherein the target vehicle speed determining means includes a modification means modifying the target vehicle speed based on the operation quantity so that the target vehicle speed obtained when the operation variable is greater than zero becomes a greater value than the target vehicle speed obtained when the operation quantity is zero.Type: GrantFiled: September 29, 2009Date of Patent: April 23, 2013Assignees: Advics. Co., Ltd., Aisin Aw Co., Ltd.Inventors: Yoshiyuki Yasui, Hideaki Koto, Hiroyuki Kodama, Masaki Maruyama, Takayuki Miyajima
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Publication number: 20130060433Abstract: When the vehicle decelerates on the ascending slope, a required brake axle torque is calculated in accordance with vehicle deceleration, so that the swinging back is suppressed. At start timing after that, initial and final values of the required brake axle torque and a correction duration are determined. During the correction duration from the start timing, the required brake axle torque is decreased from the initial value to the final value. Then, based on change in a detected vehicular speed at or before a time which is a last moment of a period in which the detected vehicular speed detected based on detection signals of the wheel speed sensors are equal to or larger than a minimum detectable vehicular speed, a stop time at which an actual vehicle speed becomes zero is estimated, a period from the start time to the stop time is identified as the correction duration.Type: ApplicationFiled: May 18, 2011Publication date: March 7, 2013Applicants: Denso Corporation, Advics Co., Ltd.Inventors: Masaki Maruyama, Masayoshi Takeda, Koji Fujiki, Daisuke Tokumochi
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Publication number: 20130033621Abstract: Disclosed herein is a zoom lens including a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having negative refractive power. The respective lens groups move in magnification variation from a wide angle end to a telephoto end. The fourth lens group is moved in optical axis direction to correct variation of an imaging position in association with magnification variation and perform correction of the imaging position in association with object distance change. Condition expression (1) is satisfied. 0.60<f1/(fw·ft)1/2<1.Type: ApplicationFiled: July 18, 2012Publication date: February 7, 2013Applicant: Sony CorporationInventor: Masaki Maruyama
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Publication number: 20120329690Abstract: The disclosure relates to an additive composition including: (a) at least one compound including an azole heterocycle, (b) at least one alkylbenzene or alkylnaphthalene sulphonate not surbased with an alkali or alkaline-earth metal, (c) at least one carbodiimide, and (d) at least one antioxidant The disclosure also relates to the use thereof as additive composition for engine oil.Type: ApplicationFiled: December 20, 2010Publication date: December 27, 2012Applicant: TOTLE RAFFINAGE MARKETINGInventors: Nguyen Truong-Dinh, Jean-Marc Savoie, Masaki Maruyama
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Patent number: 8265847Abstract: A speed control device includes: a reference point setting unit that sets, based on shape and position of a curve in advance of a vehicle, first and second reference points within the curve, the second reference point being nearer the curve exit than the first reference point; a distance calculating unit that calculates, based on the vehicle location and the reference points, first and second distances, between the vehicle and the first and second reference points, respectively; a target speed determination unit that determines, based on the curve shape and the first and second distances, the first and second target vehicle speeds to be maintained, respectively, before and after passing the first reference point; and a speed control unit that controls the speed of the vehicle based on the target speeds and the detected speed of the vehicle.Type: GrantFiled: September 10, 2009Date of Patent: September 11, 2012Assignee: Aisin AW Co., Ltd.Inventors: Takayuki Miyajima, Yoshiyuki Yasui, Hideaki Koto, Hiroyuki Kodama, Masaki Maruyama
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Patent number: 8204666Abstract: Factor information is acquired that indicates at least one factor that imposes a psychological effect on a driver of a host vehicle when the host vehicle is traveling on a road with a descending slope ahead of the host vehicle. An overall psychological effect that is imposed on the driver when the host vehicle is traveling on the road with the descending slope is acquired based on the factor information. The vehicle speed is controlled in a vehicle speed control section in accordance with the overall psychological effect.Type: GrantFiled: March 10, 2009Date of Patent: June 19, 2012Assignee: Aisin AW Co., Ltd.Inventors: Atsushi Takeuchi, Takayuki Miyajima, Fumiharu Ogawa, Hideaki Koto, Hiroyuki Kodama, Masaki Maruyama
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Patent number: 8195371Abstract: A motion control device for a vehicle includes a vehicle speed obtaining means for obtaining a speed of the vehicle, a curve shape obtaining means for obtaining a shape of a curve existing ahead of the vehicle on a road on which the vehicle is traveling, a position obtaining means for obtaining a relative position of the vehicle to the curve, a determining means for determining an appropriate vehicle speed for the vehicle to travel through the curve based on the shape of the curve obtained by the curve shape obtaining means, and a speed reduction controlling means for performing a speed reduction control on the vehicle based on the appropriate vehicle speed determined by the determining means.Type: GrantFiled: January 22, 2009Date of Patent: June 5, 2012Assignees: Advics Co., Ltd, Aisin AW Co., LtdInventors: Yoshiyuki Yasui, Keita Nakano, Hiroyuki Kodama, Masaki Maruyama, Takayuki Miyajima, Yoshito Kondo, Atsushi Takeuchi, Motoshi Suzuki
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Publication number: 20120109411Abstract: A vehicle dynamic control apparatus is designed to control a plurality of controlled objects based on a first parameter associated with a motion of a vehicle in a same direction to fulfill a request value of a second parameter associated with the motion of the vehicle in the same direction and outputted from a control requester. The vehicle dynamic control apparatus includes an availability obtainer configured to obtain an availability of the first parameter of each of the controlled objects, and to output the availability of the first parameter of each of the controlled objects to the control requester.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: DENSO CORPORATION, Aisin Seiki Kabushiki Kaisha, Advics Co., LtdInventors: Mitsuhiro Tokimasa, Junpei Tatsukawa, Yasuhiko Mukai, Masaki Maruyama, Masatoshi Hanzawa, Hirofumi Nitta, Yuichi Mizutani
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Publication number: 20120109464Abstract: The momentum control apparatus includes: an optimal feedback gain obtaining part for obtaining a plurality of optimal feedback gains used when each of the plurality of actuators is independently actuated to feedback control the momentum of the controlled object; and a feedback gain setting part for extracting a minimum feedback gain out of the plurality of optimal feedback gains obtained by the optimal feedback gain obtaining part as a feedback gain of a control system.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: AISIN SEIKI KABUSHIKI KAISHA, ADVICS CO., LTD., DENSO CORPORATIONInventors: Yuichi MIZUTANI, Hirofumi NITTA, Junpei TATSUKAWA, Mitsuhiro TOKIMASA, Yasuhiko MUKAI, Yoshihisa OGATA, Hajime KUMABE, Masatoshi HANZAWA, Masaki MARUYAMA
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Publication number: 20120109414Abstract: In a vehicle dynamic control platform arranged between a controlled object and an application, an availability obtainer obtains an availability corresponding to a controllable range of a second parameter of the controlled object, and outputs the availability of the second parameter of the controlled object to the application. The application is programmed to output the target value of the first parameter based on the availability of the second parameter of the controlled object. A comparator compares the target value of the first parameter with the availability of the second parameter when the target value of the first parameter is outputted from the application, and determines, based on a result of the comparison, whether to perform dynamic control of the vehicle by controlling the controlled object.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: DENSO CORPORATION, Aisin Seiki Kabushiki Kaisha, Advics Co., Ltd.Inventors: Hajime Kumabe, Yoshihisa Ogata, Junpei Tatsukawa, Mitsuhiro Tokimasa, Yasuhiko Mukai, Masatoshi Hanzawa, Masaki Maruyama, Hirofumi Nitta, Yuichi Mizutani
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Publication number: 20120109461Abstract: A lateral motion control apparatus includes a target value obtaining unit, a control amount calculation unit, a steering intent determination unit that determines whether a driver of the vehicle is steering with intent, and a control object control unit that controls the control object so as to control the control object based on the control amount when the driver is not steering with intent, and to stop the control of the control object when the driver is steering with intent. The steering intent determination unit includes a steering operation amount obtaining unit and a threshold value setting unit that sets a threshold value for the steering operation amount based on the target value, and determines whether or not the driver is steering with intent by comparing the magnitude of the steering operation amount with the threshold value.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: AISIN SEIKI KABUSHIKI KAISHA, ADVICS CO., LTD., DENSO CORPORATIONInventors: Hirofumi NITTA, Yuichi Mizutani, Mitsuhiro Tokimasa, Junpei Tatsukawa, Yasuhiko Mukai, Yoshihisa Ogata, Hajime Kumabe, Masatoshi Hanzawa, Masaki Maruyama
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Publication number: 20120109460Abstract: A vehicle dynamic control apparatus is designed to control a plurality of controlled objects according to a request value of a first parameter from an application associated with motion of a vehicle in a same direction to fulfill the request value of the first parameter. An availability obtainer obtains an availability corresponding to a controllable range of a second parameter of each of the plurality of controlled objects, the second parameter being associated with motion of the vehicle in the same direction. A selector determines an order of the plurality of controlled objects to be controlled based on the availability of the second parameter of each of the plurality of controlled objects, and selects at least one of the plurality of controlled objects to be controlled in accordance with the determined order.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: DENSO CORPORATION, Aisin Seiki Kabushiki Kaisha, Advics Co., Ltd.Inventors: Mitsuhiro Tokimasa, Yasuhiko Mukai, Junpei Tatsukawa, Masaki Maruyama, Masatoshi Hanzawa, Hirofumi Nitta, Yuichi Mizutani
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Publication number: 20120109410Abstract: A vehicle motion control apparatus configured to control a plurality of control objects in a same direction of vehicle motion control to achieve a requested control amount is provided. The vehicle motion control apparatus includes a control object selection unit which is configured to determine priority of the control objects used for the vehicle motion control based on a priority determination condition, to select a control object from among the plurality of control objects. The control object selection unit includes a control object selection timing determination section configured to detect a change in the priority determination condition, and cause the control object selection unit to reselect a control object at a timing of the change detection as a selection timing.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: ADVICS CO., LTD., DENSO CORPORATION, AISIN SEIKI KABUSHIKI KAISHAInventors: Masatoshi HANZAWA, Masaki MARUYAMA, Hirofumi NITTA, Yuichi MIZUTANI, Mitsuhiro TOKIMASA, Yasuhiko MUKAI, Junpei TATSUKAWA
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Publication number: 20120109416Abstract: The lateral motion control apparatus calculates lateral motion control amounts for a plurality of control targets that operate cooperatively in order to change the lateral motion amount of the vehicle based on a target value for the lateral motion amount of the vehicle, and control the plurality of control targets based on the calculated lateral motion control amounts. Meanwhile, it is determined whether or not the control of the plurality of control targets is to be stopped. When it has been determined that the control of the plurality of control targets is to be stopped, lateral motion degeneration control amounts are determined for each of the plurality of control targets so that the lateral motion control amounts of the plurality of control targets degenerate starting at that time, and the plurality of control targets are controlled based on the determined lateral motion degeneration control amounts.Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: AISIN SEIKI KABUSHIKI KAISHA, ADVICS CO., LTD., DENSO CORPORATIONInventors: Yuichi Mizutani, Hirofumi Nitta, Yasuhiko Mukai, Mitsuhiro Tokimasa, Junpei Tatsukawa, Yoshihisa Ogata, Hajime Kumabe, Masatoshi Hanzawa, Masaki Maruyama