Patents by Inventor Masaru Sugai
Masaru Sugai 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: 11225148Abstract: A target value obtaining section obtains a target value for the difference in rotational motion between a first motor and a second motor and a target value for output torque. A torque command value calculating section calculates a torque command value for the first motor and a torque command value for the second motor that achieve both of the target value for the difference in rotational motion and the target value for the output torque by using an inverse model of a motion model corresponding to a merging system.Type: GrantFiled: November 19, 2018Date of Patent: January 18, 2022Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Teruhiko Nakazawa, Ryoichi Hibino, Hiroyuki Nishizawa, Atsushi Kawaguchi, Gentaro Yamanaka, Yasushi Amano, Masaru Sugai, Yasuhiro Torii
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Patent number: 10563728Abstract: A first gear pair includes a first pinion on an input shaft and a first ring gear on an intermediate shaft. A second gear pair includes a second pinion on the intermediate shaft and a second ring gear on an output shaft. A first case that stores the first gear pair is coupled to a base member in a rotatable manner around an input shaft rotational axis. A second case is coupled to the first case in a rotatable manner around an intermediate shaft rotational axis.Type: GrantFiled: November 19, 2018Date of Patent: February 18, 2020Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Atsushi Suzuki, Gentaro Yamanaka, Yasumitsu Osada, Masaru Sugai
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Publication number: 20190285140Abstract: A first gear pair includes a first pinion on an input shaft and a first ring gear on an intermediate shaft. A second gear pair includes a second pinion on the intermediate shaft and a second ring gear on an output shaft. A first case that stores the first gear pair is coupled to a base member in a rotatable manner around an input shaft rotational axis. A second case is coupled to the first case in a rotatable manner around an intermediate shaft rotational axis.Type: ApplicationFiled: November 19, 2018Publication date: September 19, 2019Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Atsushi SUZUKI, Gentaro YAMANAKA, Yasumitsu OSADA, Masaru SUGAI
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Publication number: 20190176645Abstract: A target value obtaining section obtains a target value for the difference in rotational motion between a first motor and a second motor and a target value for output torque. A torque command value calculating section calculates a torque command value for the first motor and a torque command value for the second motor that achieve both of the target value for the difference in rotational motion and the target value for the output torque by using an inverse model of a motion model corresponding to a merging system.Type: ApplicationFiled: November 19, 2018Publication date: June 13, 2019Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Teruhiko NAKAZAWA, Ryoichi HIBINO, Hiroyuki NISHIZAWA, Atsushi KAWAGUCHI, Gentaro YAMANAKA, Yasushi AMANO, Masaru SUGAI, Yasuhiro TORII
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Patent number: 9570995Abstract: A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core made of a magnetic material and disposed to face each other, a coil channel, and a sheet-like magnetic body by which a coupling portion between cores is put between the first core and the second core at an outer portion of the first and second cores. Each coil is wound around a leg through the coil channel in a lap winding manner such that the coils are overlapped on top of each other in the coil channel when seen in an axial direction. The sheet-like magnetic body extends from the coupling portion between coils into the coil channel and includes a portion arranged between coils located between the coils in the axial direction.Type: GrantFiled: September 9, 2015Date of Patent: February 14, 2017Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shuntaro Inoue, Kenichi Takagi, Takahide Sugiyama, Masaru Sugai, Kenichiro Nagashita, Fumiki Tanahashi
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Publication number: 20160079873Abstract: A magnetically coupled reactor includes a coupled core member, a first coil, and a second coil. The coupled core member includes a first core and a second core made of a magnetic material and disposed to face each other, a coil channel, and a sheet-like magnetic body by which a coupling portion between cores is put between the first core and the second core at an outer portion of the first and second cores. Each coil is wound around a leg through the coil channel in a lap winding manner such that the coils are overlapped on top of each other in the coil channel when seen in an axial direction. The sheet-like magnetic body extends from the coupling portion between coils into the coil channel and includes a portion arranged between coils located between the coils in the axial direction.Type: ApplicationFiled: September 9, 2015Publication date: March 17, 2016Inventors: Shuntaro Inoue, Kenichi Takagi, Takahide Sugiyama, Masaru Sugai, Kenichiro Nagashita, Fumiki Tanahashi
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Publication number: 20140237110Abstract: A monitoring device monitors operation states of servers. If information that indicates the operation states is requested from a supervisor terminal, the monitoring device generates display information that allows the supervisor terminal to graphically display the operation states and process commands for the servers and transmits the generated display information to the supervisor terminal. If process commands are transmitted from the supervisor terminal, the monitoring device causes the servers to execute processes based on the transmitted commands.Type: ApplicationFiled: February 4, 2014Publication date: August 21, 2014Applicant: NEC BIGLOBE, LTD.Inventors: TOSHIKO NAKANISHI, RIHITO KATO, MASARU SUGAI
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Publication number: 20110166804Abstract: For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N pieces of internal resistors RI connected in series between both ends of RE, and (N+1) pieces of switches selecting one of voltages of respective nodes of the serial resistors and outputs the same as a signal. RE has a high absolute value precision of, e.g., several ten ohms to several hundred ohms, and RI has a high relative value precision of, e.g., several kilo-ohms. Therefore, an offset adjustment range is decided at a high absolute value precision mainly by RE, and with regard to the arrangement resolution, a high precision can be obtained along with the relative value precision of the RI.Type: ApplicationFiled: March 11, 2011Publication date: July 7, 2011Inventors: Tadashi Matsushima, Masaru Sugai, Chung Wen Hung, Yuji Shimizu
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Patent number: 7926352Abstract: For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N pieces of internal resistors RI connected in series between both ends of RE, and (N+1) pieces of switches selecting one of voltages of respective nodes of the serial resistors and outputs the same as a signal. RE has a high absolute value precision of, e.g., several ten ohms to several hundred ohms, and RI has a high relative value precision of, e.g., several kilo-ohms. Therefore, an offset adjustment range is decided at a high absolute value precision mainly by RE, and with regard to the arrangement resolution, a high precision can be obtained along with the relative value precision of the RI.Type: GrantFiled: December 23, 2008Date of Patent: April 19, 2011Assignee: Renesas Electronics CorporationInventors: Tadashi Matsushima, Masaru Sugai, Chung Wen Hung, Yuji Shimizu
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Patent number: 7677340Abstract: When an engine is operated, a power dividing mechanism divides power of the engine to output the power to a motor for running operation and a motor for a cargo handling operation, respectively. Each of loads is driven via a rotational shaft of a corresponding one of the motors. By operating the engine and supplying the motors with electric power from a battery to operate the motors, each of the loads can also be driven by the sum of power of the engine and power of a corresponding one of the motors. When surplus power is generated in the power of the engine, each of the motors is operated as an electric power generating unit by the surplus power. As a result, the battery is charged.Type: GrantFiled: March 29, 2006Date of Patent: March 16, 2010Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Hisashi Ichijo, Shoichi Ieoka, Norihiko Kato, Masaru Sugai, Takaji Umeno
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Publication number: 20090165564Abstract: For example, to adjust an offset of a pressure sensor, there are provided an external resistor RE and an internal resistor circuit that is connected to both ends of RE and formed in a semiconductor chip such as a processor. The internal resistor circuit includes N pieces of internal resistors RI connected in series between both ends of RE, and (N+1) pieces of switches selecting one of voltages of respective nodes of the serial resistors and outputs the same as a signal. RE has a high absolute value precision of, e.g., several ten ohms to several hundred ohms, and RI has a high relative value precision of, e.g., several kilo-ohms. Therefore, an offset adjustment range is decided at a high absolute value precision mainly by RE, and with regard to the arrangement resolution, a high precision can be obtained along with the relative value precision of the RI.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Inventors: Tadashi MATSUSHIMA, Masaru SUGAI, Chung Wen Hung, Yuji SHIMIZU
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Patent number: 7464778Abstract: Provided are an engine 111, a generator-motor 113, a clutch 112 connecting/disconnecting power therebetween, a battery 115, and a loading pump 117 for driving a fork 118. The generator-motor 113 is set either in a generator mode or in a motor mode. When a cargo handling load (detected by a loading lever position sensor 145 and the like) is smaller than a predetermined value, the clutch 112 is set to a disconnection state, the engine 111 is stopped or idled, and the loading pump 117 is driven by the generator-motor 113 in the motor mode. When the load is increased to the predetermined value or more during cargo handling work in a state where the clutch 112 is released, an increase of the number of revolution of the engine is started while an output of the generator-motor 113 is being increased. When the number of revolution of the engine 111 is made equal to the number of revolution of the generator-motor 113, the clutch 112 is set to a connected state, and the loading pump 117 is driven by the engine 111.Type: GrantFiled: March 28, 2005Date of Patent: December 16, 2008Assignee: Kabushiki Kaisha Toyota JidoshokkiInventors: Norihiko Kato, Masaru Sugai
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Publication number: 20080190703Abstract: Provided are an engine 111, a generator-motor 113, a clutch 112 connecting/disconnecting power therebetween, a battery 115, and a loading pump 117 for driving a fork 118. The generator-motor 113 is set either in a generator mode or in a motor mode. When a cargo handling load (detected by a loading lever position sensor 145 and the like) is smaller than a predetermined value, the clutch 112 is set to a disconnection state, the engine 111 is stopped or idled, and the loading pump 117 is driven by the generator-motor 113 in the motor mode. When the load is increased to the predetermined value or more during cargo handling work in a state where the clutch 112 is released, an increase of the number of revolution of the engine is started while an output of the generator-motor 113 is being increased. When the number of revolution of the engine 111 is made equal to the number of revolution of the generator-motor 113, the clutch 112 is set to a connected state, and the loading pump 117 is driven by the engine 111.Type: ApplicationFiled: March 28, 2005Publication date: August 14, 2008Inventors: Norihiko Kato, Masaru Sugai
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Patent number: 7248958Abstract: A tire-generated sound detection sensor detects a tire-generated sound that is generated from a tire while the vehicle is running. A wheel rotation sensor detects a wheel rotation speed. A preprocessor calculates feature quantities corresponding to a road surface state and tire-generated sound sources. A feature vector generator generates a feature vector having, as components, the feature quantities calculated by the preprocessor and the detected wheel rotation speed. A judgment processor estimates a state of a road surface on which the vehicle is running on the basis of the feature vector generated by the feature vector generator and feature vectors that are stored in a judgment map memory so as to be correlated with a plurality of road surface states, respectively, and each of which corresponds to a road surface state and tire-generated sound sources.Type: GrantFiled: November 7, 2003Date of Patent: July 24, 2007Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Yoshitoshi Watanabe, Katsuhiro Asano, Takaji Umeno, Shu Asami, Masaru Sugai
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Publication number: 20060243260Abstract: When an engine is operated, a power dividing mechanism divides power of the engine to output the power to a motor for running operation and a motor for a cargo handling operation, respectively. Each of loads is driven via a rotational shaft of a corresponding one of the motors. By operating the engine and supplying the motors with electric power from a battery to operate the motors, each of the loads can also be driven by the sum of power of the engine and power of a corresponding one of the motors. When surplus power is generated in the power of the engine, each of the motors is operated as an electric power generating unit by the surplus power. As a result, the battery is charged.Type: ApplicationFiled: March 29, 2006Publication date: November 2, 2006Inventors: Hisashi Ichijo, Shoichi Ieoka, Norihiko Kato, Masaru Sugai, Takaji Umeno
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Patent number: 7059687Abstract: A braking force distribution control device is provided in which wheel speeds of respective wheels of a vehicle are detected. On the basis of the detected wheel speeds, slopes of coefficients of friction ? between the wheels and a road surface are estimated as road surface ? slope values of the respective wheels. On the basis of the estimated road surface ? slope values of the respective wheels, braking forces of the respective wheels are controlled such that the braking forces among the respective wheels are adjusted.Type: GrantFiled: April 3, 2001Date of Patent: June 13, 2006Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yoshiyuki Yasui, Tsuyoshi Yoshida, Yutaka Ohnuma, Akira Tanaka, Masaru Sugai, Eiichi Ono, Mamoru Sawada
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Patent number: 7010990Abstract: In a detecting apparatus, a resolver generates signals whose magnitudes vary periodically in accordance with a positional change of a fixed element side rotating shaft, which is a base for rotation of a rotator and whose position is offset when force of a component parallel to a rotation plane is applied thereto, and in accordance with a rotational state of the tire. An R/D converter generates pulses whose periods correspond to a rotational angle of the rotator and to positional offset of the rotating shaft. From the pulses, a computer detects a characteristic amount which varies in accordance with the positional offset of the shaft. On the basis of the detected amount and a relationship which is determined in advance on the basis of stiffness of the shaft and the amount, the computer detects a moment applied to the shaft, and computes a force generated at the tire.Type: GrantFiled: January 15, 2004Date of Patent: March 14, 2006Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Takaji Umeno, Katsuhiro Asano, Yoshitoshi Watanabe, Masaru Sugai, Shu Asami
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Patent number: 6871530Abstract: A physical quantity estimating apparatus and method that detects an acceleration and deceleration rate of a vehicle body and a rotational velocity of a wheel, estimates at least one of a tire radius of each wheel, a road surface ? gradient, and a spring constant of a combination spring which combines spring elements, with a distribution ratio of braking force and driving force to a front and rear wheel and a distribution ratio of a load on each wheel that is corrected according to the detected acceleration and deceleration rate, as known values, based on a wheel speed difference of any two wheels, during acceleration and deceleration of a vehicle, of an ideal vehicle model that takes into consideration a tire torsional spring element and a suspension longitudinal spring element and estimates a tire type based on the estimated road surface ? gradient and spring constant.Type: GrantFiled: April 10, 2003Date of Patent: March 29, 2005Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Masaru Sugai, Katsuhiro Asano, Takaji Umeno
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Publication number: 20040144173Abstract: In a detecting apparatus, a resolver generates signals whose magnitudes vary periodically in accordance with a positional change of a fixed element side rotating shaft, which is a base for rotation of a rotator and whose position is offset when force of a component parallel to a rotation plane is applied thereto, and in accordance with a rotational state of the tire. An R/D converter generates pulses whose periods correspond to a rotational angle of the rotator and to positional offset of the rotating shaft. From the pulses, a computer detects a characteristic amount which varies in accordance with the positional offset of the shaft. On the basis of the detected amount and a relationship which is determined in advance on the basis of stiffness of the shaft and the amount, the computer detects a moment applied to the shaft, and computes a force generated at the tire.Type: ApplicationFiled: January 15, 2004Publication date: July 29, 2004Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Takaji Umeno, Katsuhiro Asano, Yoshitoshi Watanabe, Masaru Sugai, Shu Asami
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Publication number: 20040138831Abstract: A tire-generated sound detection sensor detects a tire-generated sound that is generated from a tire while the vehicle is running. A wheel rotation sensor detects a wheel rotation speed. A preprocessor calculates feature quantities corresponding to a road surface state and tire-generated sound sources. A feature vector generator generates a feature vector having, as components, the feature quantities calculated by the preprocessor and the detected wheel rotation speed. A judgment processor estimates a state of a road surface on which the vehicle is running on the basis of the feature vector generated by the feature vector generator and feature vectors that are stored in a judgment map memory so as to be correlated with a plurality of road surface states, respectively, and each of which corresponds to a road surface state and tire-generated sound sources.Type: ApplicationFiled: November 7, 2003Publication date: July 15, 2004Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Yoshitoshi Watanabe, Katsuhiro Asano, Takaji Umeno, Shu Asami, Masaru Sugai