Patents by Inventor Yusuke Sakaguchi
Yusuke Sakaguchi 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: 20160318400Abstract: A slip determination system for a vehicle, which is capable of improving the determination accuracy by avoiding erroneous determination of excessive slip of wheels when a state of the wheels, driven/braked by motors, is switched. In the slip determination system according to the present invention, when first and second motor rotational speeds NMOT1 and NMOT2, which are rotational speeds of rear motors which brake/drive rear wheels WRL and WRR, reach a reference rotational speed NMREF set based on wheel rotational speeds NWFL, NWFR, NWRL, and NWRR, it is determined that excessive slip has occurred in the rear wheels WRL and WRR. When the sign of a target torque TROBJ of the rear motors is inverted, the reference rotational speed NMREF is changed to a value more difficult to be reached by the first and second motor rotational speeds NMOT1 and NMOT2, or the excessive slip determination is inhibited.Type: ApplicationFiled: December 16, 2014Publication date: November 3, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Yusuke Sakaguchi, Satoshi Ando, Masatoshi Noguchi
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Patent number: 9389616Abstract: Provided is a driving force control device for a four-wheel-drive vehicle that can evade an occurrence of excessive understeer and oversteer in situations unintended by the driver, by appropriately controlling driving forces to be distributed to sub-drive wheels. The driving force distribution device of the four-wheeled vehicle controls driving force to be distributed to the rear wheels (Wr, Wr) by the clutch (10) for front-and-rear torque distribution so that the wheels (Wf, Wf) are main drive wheels and the rear wheels (Wr, Wr) are sub-drive wheels. The driving force distribution device is adapted to perform control to restrict the upper limit of the four-wheel drive torque based upon an estimated driving force and steering angle of the vehicle, when calculating four-wheel drive torque to be distributed to the rear wheels (Wr, Wr) by the driving force distribution device (10).Type: GrantFiled: June 12, 2012Date of Patent: July 12, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Ryuichi Murakami, Jiro Hara, Nor Hairuddin, Yusuke Sakaguchi, Naoharu Takatani
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Patent number: 9376006Abstract: Provided is a vehicle provided with left and right electric motors electrically connected to a battery and mechanically connected respectively to left and right vehicle wheels, a power generator mechanically connected to an internal combustion engine being electrically connected to the battery, wherein the battery is reliably protected during traction control and at other such times. Two electric motors, specifically first and second electric motors, are temporarily handled integrally to determine a torque down amount (TD), which is the total allowable power variation width (?) of the two electric motors, on the basis of left and right total power (Y), and the respective motive powers of the first and second electric motors are controlled while being limited by values obtained by simply dividing the determined torque down amount (TD) equally, whereby the allowable input/output power (allowable input power (Z)) of the battery is reliably protected.Type: GrantFiled: December 16, 2014Date of Patent: June 28, 2016Assignee: HONDA MOTOR CO., LTD.Inventors: Yoshito Terayama, Yoshinori Ando, Toshinori Tsukamoto, Masaki Negoro, Yoshikazu Fujimoto, Masatoshi Noguchi, Yusuke Sakaguchi
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Publication number: 20160039405Abstract: Provided is a vehicle provided with left and right electric motors electrically connected to a battery and mechanically connected respectively to left and right vehicle wheels, a power generator mechanically connected to an internal combustion engine being electrically connected to the battery, wherein the battery is reliably protected during traction control and at other such times. Two electric motors, specifically first and second electric motors, are temporarily handled integrally to determine a torque down amount (TD), which is the total allowable power variation width (?) of the two electric motors, on the basis of left and right total power (Y), and the respective motive powers of the first and second electric motors are controlled while being limited by values obtained by simply dividing the determined torque down amount (TD) equally, whereby the allowable input/output power (allowable input power (Z)) of the battery is reliably protected.Type: ApplicationFiled: December 16, 2014Publication date: February 11, 2016Applicant: HONDA MOTOR CO., LTD.Inventors: Yoshito Terayama, Yoshinori Ando, Toshinori Tsukamoto, Masaki Negoro, Yoshikazu Fujimoto, Masatoshi Noguchi, Yusuke Sakaguchi
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Patent number: 8996267Abstract: A driving force control device for a four-wheel-drive vehicle performs, by controlling the driving force that is allocated to the rear wheels by a front and rear torque allocation clutch that is arranged between a propeller shaft and a rear diff, the control of setting front wheels as primary drive wheels and rear wheels as auxiliary drive wheels. A control is performed to disable the allocation of driving force to the rear wheels by disengaging the front and rear torque allocation clutch, when the state that the difference in wheel speed between the left and right rear wheels is equal to or more than 80 km continues for 0.1 sec or longer in the state that the vehicle body speed is equal to or less than 120 km.Type: GrantFiled: January 20, 2012Date of Patent: March 31, 2015Assignee: Honda Motor Co., Ltd.Inventors: Yusuke Sakaguchi, Kouji Ono, Ryuichi Murakami
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Publication number: 20140297146Abstract: Provided is a driving force control device for a four-wheel-drive vehicle that can evade an occurrence of excessive understeer and oversteer in situations unintended by the driver, by appropriately controlling driving forces to be distributed to sub-drive wheels. The driving force distribution device of the four-wheeled vehicle controls driving force to be distributed to the rear wheels (Wr, Wr) by the clutch (10) for front-and-rear torque distribution so that the wheels (Wf, Wf) are main drive wheels and the rear wheels (Wr, Wr) are sub-drive wheels. The driving force distribution device is adapted to perform control to restrict the upper limit of the four-wheel drive torque based upon an estimated driving force and steering angle of the vehicle, when calculating four-wheel drive torque to be distributed to the rear wheels (Wr, Wr) by the driving force distribution device (10).Type: ApplicationFiled: June 12, 2012Publication date: October 2, 2014Applicant: HONDA MOTOR CO., LTD.Inventors: Ryuichi Murakami, Jiro Hara, Nor Hairuddin, Yusuke Sakaguchi, Naoharu Takatani
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Patent number: 8666628Abstract: A torque distribution control apparatus for a four-wheel drive vehicle includes a vehicle-speed detector configured to detect a vehicle speed of the vehicle. A wheel-speed detector is configured to detect wheel speeds of main driving wheels and sub-driving wheels of the vehicle. A sub-driving-wheel distribution-torque calculator is configured to calculate a sub-driving-wheel distribution torque in accordance with a rotation speed difference between the main driving wheels and the sub-driving wheels calculated based on an output from the wheel-speed detector. A torque limiter is configured to limit an upper limit of the sub-driving-wheel distribution torque. A controller is configured to control the sub-driving-wheel distribution torque to be transmitted to the right and left sub-driving wheels by right and left torque distribution clutches in accordance with a driving state of the vehicle.Type: GrantFiled: June 27, 2010Date of Patent: March 4, 2014Assignee: Honda Motor Co., Ltd.Inventors: Masatoshi Noguchi, Nor Hairuddin, Yusuke Sakaguchi
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Publication number: 20130304341Abstract: A driving force control device for a four-wheel-drive vehicle performs, by controlling the driving force that is allocated to the rear wheels by a front and rear torque allocation clutch that is arranged between a propeller shaft and a rear diff, the control of setting front wheels as primary drive wheels and rear wheels as auxiliary drive wheels. A control is performed to disable the allocation of driving force to the rear wheels by disengaging the front and rear torque allocation clutch, when the state that the difference in wheel speed between the left and right rear wheels is equal to or more than 80 km continues for 0.1 sec or longer in the state that the vehicle body speed is equal to or less than 120 km.Type: ApplicationFiled: January 20, 2012Publication date: November 14, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Yusuke Sakaguchi, Kouji Ono, Ryuichi Murakami
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Patent number: 8489304Abstract: A torque distribution control apparatus for a four-wheel drive vehicle includes a torque distribution controller configured to control a sub-driving-wheel distribution torque to be transmitted to right and left sub-driving wheels via right and left torque distribution clutches in accordance with a target distribution torque. A driving-torque calculator is configured to calculate a driving torque output from a driving source. A target-distribution-torque calculator is configured to calculate the target distribution torque to be distributed to the sub-driving wheels in accordance with the driving torque. A target-distribution-torque correction device is configured to correct the target distribution torque to increase when the target distribution torque is lower than or equal to a first threshold value and an increase rate of the target distribution torque is higher than or equal to a second threshold value.Type: GrantFiled: June 27, 2010Date of Patent: July 16, 2013Assignee: Honda Motor Co., Ltd.Inventors: Masatoshi Noguchi, Yusuke Sakaguchi
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Publication number: 20110270451Abstract: Disclosed is a control device for a waste heat recovery system which enables improvement in the responsiveness of the output control for a power turbine and a steam turbine with respect to sudden changes in the inboard load. The control device for a waste heat recovery system is equipped with: a power turbine that provides drive using engine exhaust gas and a steam turbine that provides drive using steam generated with an engine exhaust gas economizer, and is equipped with a power turbine control means which controls the output of the power turbine and a steam turbine control means which controls the output of the steam turbine, and both of which drive an electrical generator by means of the power turbine and the steam turbine.Type: ApplicationFiled: December 24, 2009Publication date: November 3, 2011Inventors: Yusuke Sakaguchi, Yoshihiro Ichiki, Takayuki Kanaboshi, Yuji Ohta, Yoshimi Kagimoto
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Publication number: 20110035130Abstract: A torque distribution control apparatus for a four-wheel drive vehicle includes a vehicle-speed detector configured to detect a vehicle speed of the vehicle. A wheel-speed detector is configured to detect wheel speeds of main driving wheels and sub-driving wheels of the vehicle. A sub-driving-wheel distribution-torque calculator is configured to calculate a sub-driving-wheel distribution torque in accordance with a rotation speed difference between the main driving wheels and the sub-driving wheels calculated based on an output from the wheel-speed detector. A torque limiter is configured to limit an upper limit of the sub-driving-wheel distribution torque. A controller is configured to control the sub-driving-wheel distribution torque to be transmitted to the right and left sub-driving wheels by right and left torque distribution clutches in accordance with a driving state of the vehicle.Type: ApplicationFiled: June 27, 2010Publication date: February 10, 2011Applicant: Honda Motor Co., LtdInventors: Masatoshi Noguchi, Nor Hairuddin, Yusuke Sakaguchi
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Publication number: 20110035090Abstract: A torque distribution control apparatus for a four-wheel drive vehicle includes a torque distribution controller configured to control a sub-driving-wheel distribution torque to be transmitted to right and left sub-driving wheels via right and left torque distribution clutches in accordance with a target distribution torque. A driving-torque calculator is configured to calculate a driving torque output from a driving source. A target-distribution-torque calculator is configured to calculate the target distribution torque to be distributed to the sub-driving wheels in accordance with the driving torque. A target-distribution-torque correction device is configured to correct the target distribution torque to increase when the target distribution torque is lower than or equal to a first threshold value and an increase rate of the target distribution torque is higher than or equal to a second threshold value.Type: ApplicationFiled: June 27, 2010Publication date: February 10, 2011Applicant: HONDA MOTOR CO., LTD.Inventors: Masatoshi Noguchi, Yusuke Sakaguchi
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Patent number: 7432391Abstract: The present invention is to provide a safe process for the production of tert-butyl N-(2-bromoethyl)carbamate where operation is simple, handling of the final product is easy, working efficiency is good and yield is high. A process for the production of tert-butyl N-(2-bromoethyl)carbamate, characterized in that, 2-bromoethylamine or a salt thereof is made to react with an agent for introducing a tert-butoxy carbonyl group in a water-soluble solvent in the presence of sodium hydroxide and then water as a crystallizing solvent and seed crystals are added to the reaction solution whereby crystals of tert-butyl N-(2-bromoethyl)carbamate are separated out therefrom.Type: GrantFiled: May 24, 2005Date of Patent: October 7, 2008Assignee: Daito Chemix CorporationInventors: Makoto Momomoto, Yoshiaki Suzuki, Minoru Yamagami, Keisuke Matsumoto, Yusuke Sakaguchi
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Publication number: 20080139839Abstract: The present invention is to provide a safe process for the production of tert-butyl N-(2-bromoethyl)carbamate where operation is simple, handling of the final product is easy, working efficiency is good and yield is high. A process for the production of tert-butyl N-(2-bromoethyl)carbamate, characterized in that, 2-bromoethylamine or a salt thereof is made to react with an agent for introducing a tert-butoxy carbonyl group in a water-soluble solvent in the presence of sodium hydroxide and then water as a crystallizing solvent and seed crystals are added to the reaction solution whereby crystals of tert-butyl N-(2-bromoethyl)carbamate are separated out therefrom.Type: ApplicationFiled: May 24, 2005Publication date: June 12, 2008Inventors: Makoto Momomoto, Yoshiaki Suzuki, Minoru Yamagami, Keisuke Matsumoto, Yusuke Sakaguchi