Patents by Inventor Norihisa Nishikawa
Norihisa Nishikawa 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: 9540038Abstract: A control apparatus for controlling a vehicle which is provided with a braking/driving force varying device capable of individually changing a braking/driving force acting on each of wheels (FL, FR, RL, RR) with respect to each wheel.Type: GrantFiled: June 30, 2010Date of Patent: January 10, 2017Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Takashima, Norihisa Nishikawa, Mitsutaka Tanimoto, Tetsuhiro Narita
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Patent number: 8996254Abstract: A vehicle motion control apparatus which is configured to control a motion of a vehicle comprising a plurality of apparatuses, each of which is configured to selectively control a slip angle or a yaw rate, is provided with: a behavior controlling device which is configured to perform behavior control in which a plurality of apparatuses are controlled such that a slip angle and a yaw rate are a set target slip angle and a target yaw rate, respectively; a turning state quantity specifying device which is configured to specify a turning state quantity of the vehicle; and a selecting device which is configured to select at least one of the slip angle and the yaw rate to be prioritized, on the basis of the specified turning state quantity in a case where the behavior control needs to be performed by one of the plurality of apparatuses.Type: GrantFiled: December 1, 2010Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Norihisa Nishikawa, Mitsutaka Tanimoto, Yoshitaka Fujita, Toru Takashima, Tetsuhiro Narita, Go Inoue, Takahiro Kojo
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Patent number: 8880316Abstract: When various automatic steering is performed, a steering reaction transmitted from steered wheels is suppressed without making it interfere with a driver's steering input.Type: GrantFiled: April 14, 2010Date of Patent: November 4, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Norihisa Nishikawa
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Publication number: 20130253770Abstract: A vehicle motion control apparatus which is configured to control a motion of a vehicle comprising a plurality of apparatuses, each of which is configured to selectively control a slip angle or a yaw rate, is provided with: a behavior controlling device which is configured to perform behavior control in which a plurality of apparatuses are controlled such that a slip angle and a yaw rate are a set target slip angle and a target yaw rate, respectively; a turning state quantity specifying device which is configured to specify a turning state quantity of the vehicle; and a selecting device which is configured to select at least one of the slip angle and the yaw rate to be prioritized, on the basis of the specified turning state quantity in a case where the behavior control needs to be performed by one of the plurality of apparatuses.Type: ApplicationFiled: December 1, 2010Publication date: September 26, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Norihisa Nishikawa, Mitsutaka Tanimoto, Yoshitaka Fujita, Toru Takashima, Tetsuhiro Narita, Go Inoue, Takahiro Kojo
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Publication number: 20130103264Abstract: A control apparatus for controlling a vehicle which is provided with a braking/driving force varying device capable of individually changing a braking/driving force acting on each of wheels (FL, FR, RL, RR) with respect to each wheel.Type: ApplicationFiled: June 30, 2010Publication date: April 25, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Toru Takashima, Norihisa Nishikawa, Mitsutaka Tanimoto, Tetsuhiro Narita
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Publication number: 20120226417Abstract: When various automatic steering is performed, a steering reaction transmitted from steered wheels is suppressed without making it interfere with a driver's steering input.Type: ApplicationFiled: April 14, 2010Publication date: September 6, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Norihisa Nishikawa
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Publication number: 20110077823Abstract: A steering control device for a vehicle independently performs a steering control of front wheels and rear wheels. A phase control unit performs a control of a steering control unit so as to control a phase difference between a yaw rate and a lateral acceleration at a predetermined position in a vehicle interior. Additionally, a setting unit sets the predetermined position based on a riding position condition of passengers in the vehicle interior. Therefore, it is possible to appropriately control the phase difference between the yaw rate and the lateral acceleration at the predetermined position in the vehicle interior. So, it becomes possible to appropriately ensure a comfort (ride quality) of the passenger at the predetermined position.Type: ApplicationFiled: March 3, 2009Publication date: March 31, 2011Applicant: Toyota Jidosha Kabushiki KaishaInventor: Norihisa Nishikawa
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Patent number: 7809483Abstract: A vehicle steering control device capable of executing automatic steering and manual steering includes: an automatic control amount-setting device that sets a target automatic control amount based on information about vehicle behavior and ambient environment; a steering control amount-setting device that sets a target steering amount based on a manual steering amount input by a driver and the set target automatic control amount; and a steering device that steers based on the set target steering amount. When the target automatic control amount contributes more in the setting of the target steering amount than the manual steering amount does, the steering control amount-setting device sets the target steering amount so as to better the responsiveness in the lateral shift of the vehicle relatively to the responsiveness in the turning of the vehicle, in comparison with when the target automatic amount does not contribute more than the manual steering amount.Type: GrantFiled: October 3, 2007Date of Patent: October 5, 2010Assignee: Toyota Jidosha Kabushiki KaishaInventor: Norihisa Nishikawa
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Publication number: 20080091321Abstract: A vehicle steering control device capable of executing automatic steering and manual steering includes: an automatic control amount-setting device that sets a target automatic control amount based on information about vehicle behavior and ambient environment; a steering control amount-setting device that sets a target steering amount based on a manual steering amount input by a driver and the set target automatic control amount; and a steering device that steers based on the set target steering amount. When the target automatic control amount contributes more in the setting of the target steering amount than the manual steering amount does, the steering control amount-setting device sets the target steering amount so as to better the responsiveness in the lateral shift of the vehicle relatively to the responsiveness in the turning of the vehicle, in comparison with when the target automatic amount does not contribute more than the manual steering amount.Type: ApplicationFiled: October 3, 2007Publication date: April 17, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Norihisa NISHIKAWA
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Patent number: 7177744Abstract: An elastic support assembly for an electric power steering apparatus in which a worm shaft is supported movably in a rotation axis direction through the elastic support assembly includes: a pair of first and second members relatively moving in the rotation axis direction according to a movement of the worm shaft; an elastic body provided between the first and second members in the rotation axis direction; and a cover which covers an outer periphery part of the elastic body from a radial direction of the worm shaft and is connected to the first member.Type: GrantFiled: February 12, 2004Date of Patent: February 13, 2007Assignee: Koyo Seiko Co., LtdInventors: Hajime Tanaka, Hisatake Yamada, Norihisa Nishikawa, Hideo Kometani
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Publication number: 20040210365Abstract: An elastic support assembly for an electric power steering apparatus in which a worm shaft is supported movably in a rotation axis direction through the elastic support assembly includes: a pair of first and second members relatively moving in the rotation axis direction according to a movement of the worm shaft; an elastic body provided between the first and second members in the rotation axis direction; and a cover which covers an outer periphery part of the elastic body from a radial direction of the worm shaft and is connected to the first member.Type: ApplicationFiled: February 12, 2004Publication date: October 21, 2004Applicant: KOYO SEIKO CO., LTD.Inventors: Hajime Tanaka, Hisatake Yamada, Norihisa Nishikawa, Hideo Kometani