Patents by Inventor Tomoyuki Hanyu
Tomoyuki Hanyu 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: 6614137Abstract: Leakage of magnetic fluxes passing through the gaps between the magnetic pole teeth of an armature is reduced thereby to reduce a magnetic attraction force between the armature and a mover. A linear motor includes a first member and a second member. The first member is configured with at least a magnetic pole of a first polarity having a first opposed portion and a magnetic pole of a second polarity having a second opposed portion. The second member is held by the first opposed portion, while the second member is held by the second opposed portion and moves relatively. The first member is formed of an iron core and a winding, and the second member is formed of a permanent magnet, a magnetic material, a winding of a single type or a combination of a plurality of types of materials.Type: GrantFiled: February 26, 2001Date of Patent: September 2, 2003Assignee: Hitachi, Ltd.Inventors: Kim Houng Joong, Kohji Maki, Yoshitaka Iwaji, Taizou Miyazaki, Tomoyuki Hanyu
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Patent number: 6577022Abstract: A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.Type: GrantFiled: March 21, 2002Date of Patent: June 10, 2003Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Kim Houng Joong, Kazuo Tahara, Kou Ajima, Koki Ueta, Toshiyuki Innami, Noriaki Hino, Taizo Miyazaki, Tomoyuki Hanyu, Kousaku Ohno
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Publication number: 20030102674Abstract: A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.Type: ApplicationFiled: January 23, 2003Publication date: June 5, 2003Applicant: Hitachi, Ltd.Inventors: Kim Houng Joong, Kazuo Tahara, Kou Ajima, Koki Ueta, Toshiyuki Innami, Noriaki Hino, Taizo Miyazaki, Tomoyuki Hanyu, Kousaku Ohno
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Patent number: 6545372Abstract: The present invention provides a hybrid motor comprising an engine comprising a plurality of intake valves and an auxiliary power plant in communication with the engine and a throttle valve for controlling a quantity of air into the engine wherein during operation by the auxiliary power plant the throttle valve is open and the intake valves are opened by the valve control unit.Type: GrantFiled: September 7, 2001Date of Patent: April 8, 2003Assignee: Hitachi, Ltd.Inventors: Tomoyuki Hanyu, Masahiko Amano, Toshio Manaka, Taizou Miyazaki, Yasuo Morooka
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Publication number: 20030059320Abstract: A fluid transfer apparatus utilizes a linear motor including a movable element in which magnetic poles are provided at a predetermined pitch along a moving direction, magnetic pole teeth provided in upper and lower portions of the movable element at a predetermined pitch along a moving direction of the movable element and so as to oppose to each other via the movable element, and a coil, wherein adjacent magnetic pole teeth and opposing magnetic pole teeth among the magnetic pole teeth form different poles.Type: ApplicationFiled: February 26, 2001Publication date: March 27, 2003Inventors: Houng Joong Kim, Kohji Maki, Taizou Miyazaki, Tomoyuki Hanyu, Ryouichi Naganuma
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Patent number: 6507127Abstract: An altitude calculation unit 44 estimates an inclination of a road from vehicle speed and vehicle drive torque, and calculates altitude of a vehicle. A battery management unit 43 calculate difference between average altitude determined from the past altitude history and the present altitude and varies a target value of battery charging rate or upper and lower limit values thereof in response to the difference. Charging and discharging command value is calculated in response to difference between charging rate detection value and the target value or the upper and lower limit values. An integrated control unit 22 sets output share between an engine and a motor based on vehicle target drive torque calculated by a target toque determination unit 21 and charging and discharging command from the battery management unit 43, determines an optimum operation point of the engine and issues a control command to the engine and the motor.Type: GrantFiled: September 25, 2000Date of Patent: January 14, 2003Assignee: Hitachi, Ltd.Inventors: Masahiko Amano, Ryoso Masaki, Taizo Miyazaki, Tomoyuki Hanyu
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Publication number: 20020158513Abstract: Power supply equipment for a motor vehicle, comprising a motor generator, an inverter for driving said motor generator, a battery and a capacitor of an electrical double layer, wherein the capacitor is directly connected to a DC side of the inverter and the battery is connected in parallel with the capacitor via a first switching unit. When an engine is started up, the power stored in the capacitor is used, and the switching units are turned off to separate the battery from the start-up of the engine.Type: ApplicationFiled: August 30, 2001Publication date: October 31, 2002Applicant: Hitachi, Ltd.Inventors: Masahiko Amano, Yasuo Morooka, Taizo Miyazaki, Tomoyuki Hanyu
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Patent number: 6470983Abstract: A hybrid vehicle is disclosed, in which the drive torque is controlled according to a target, and the engine operating point and the battery charging rate are controlled thereby as targeted to improve the fuel consumption rate of the hybrid vehicle as a whole. An engine torque estimating unit 41 estimates the engine torque based on the motor current, and an engine output correction unit 42 calculates a correct value of the throttle opening based on the difference between the estimated value and the target value. The battery management unit 43, on the other hand, calculates a target battery charge/discharge rate based on the navigation information and the battery charging rate. The engine output correction unit 44 calculates and outputs the correction value of the target battery charge/discharge value based on the difference between the target battery charge/discharge current and the actual current.Type: GrantFiled: March 14, 2000Date of Patent: October 29, 2002Assignee: Hitachi, Ltd.Inventors: Masahiko Amano, Ryoso Masaki, Taizo Miyazaki, Tomoyuki Hanyu
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Patent number: 6462430Abstract: A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.Type: GrantFiled: September 1, 2000Date of Patent: October 8, 2002Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.Inventors: Kim Houng Joong, Kazuo Tahara, Kou Ajima, Koki Ueta, Toshiyuki Innami, Noriaki Hino, Taizo Miyazaki, Tomoyuki Hanyu, Kousaku Ohno
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Publication number: 20020123407Abstract: The present invention provides a driving apparatus for a vehicle comprising an engine for providing a primary driving force to a driving shaft and an auxiliary power plant connected with the engine through a transmission the transmission comprising an input shaft for inputting the primary driving force from the engine and an output shaft connected to the input shaft for transmitting the primary driving force to the driving shaft wherein the auxiliary power plant provides a secondary driving force to the driving shaft during a shifting in speed.Type: ApplicationFiled: August 31, 2001Publication date: September 5, 2002Inventors: Tomoyuki Hanyu, Masahiko Amano, Masahiko Ibamoto, Toshimichi Minowa, Yasuo Morooka
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Publication number: 20020117858Abstract: The present invention provides a hybrid motor comprising an engine comprising a plurality of intake valves and an auxiliary power plant in communication with the engine and a throttle valve for controlling a quantity of air into the engine wherein during operation by the auxiliary power plant the throttle valve is open and the intake valves are opened by the valve control unit.Type: ApplicationFiled: September 7, 2001Publication date: August 29, 2002Inventors: Tomoyuki Hanyu, Masahiko Amano, Toshio Manaka, Taizou Miyazaki, Yasuo Morooka
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Publication number: 20020100624Abstract: A hybrid drive type vehicle having a permanent magnet type synchronous motor can provide high torque characteristics in low revolution speed range of the engine and high power generation characteristics at high revolution speed range of the engine. The hybrid drive type vehicle includes an electric rotary machine being formed with a stator and a rotor. A field magnet of the rotor include a first field magnet and a second field magnet. The first and second field magnets are opposing with a magnetic pole of the stator and having a mechanism for varying a phase of a magnetic pole resulting from combination of the first and second field magnets relative to the magnetic pole of the first field magnet depending upon direction of a torque of the rotor.Type: ApplicationFiled: March 21, 2002Publication date: August 1, 2002Applicant: Hitachi, Ltd. and Hitachi Car Engineering Co., LtdInventors: Kim Houng Joong, Kazuo Tahara, Kou Ajima, Koki Ueta, Toshiyuki Innami, Noriaki Hino, Taizo Miyazaki, Tomoyuki Hanyu, Kousaku Ohno
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Publication number: 20020043879Abstract: Leakage of magnetic fluxes passing through the gaps between the magnetic pole teeth of an armature is reduced thereby to reduce a magnetic attraction force between the armature and a mover. A linear motor includes a first member and a second member. The first member is configured with at least a magnetic pole of a first polarity having a first opposed portion and a magnetic pole of a second polarity having a second opposed portion. The second member is held by the first opposed portion, while the second member is held by the second opposed portion and moves relatively. The first member is formed of an iron core and a winding, and the second member is formed of a permanent magnet, a magnetic material, a winding of a single type or a combination of a plurality of types of materials.Type: ApplicationFiled: February 26, 2001Publication date: April 18, 2002Inventors: Kim Houng Joong, Kohji Maki, Yoshitaka Iwaji, Taizou Miyazaki, Tomoyuki Hanyu
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Publication number: 20020036106Abstract: In a driving system comprising an engine, a plurality of motor-generators and a plurality of coaxial differential mechanisms, rotating output axes of the plurality of motor-generators are disposed parallel to and opposite to a rotating output axis of the engine. The coaxial differential mechanisms are arranged between the engine and the motors. The coaxial differential mechanisms are disposed so that straight lines passing through rotating axes of at least two of the coaxial differential mechanisms are parallel to each other, and the output power of the engine is transmitted to the coaxial differential mechanisms through gears. It is possible to provide a small sized and high productive driving system.Type: ApplicationFiled: December 6, 2001Publication date: March 28, 2002Inventors: Tomoyuki Hanyu, Ryoso Masaki, Masahiko Amano, Taizo Miyazaki, Yasuo Morooka
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Patent number: 6360625Abstract: The invention provides a power transmission apparatus having a reduced power transmission loss. In the power transmission apparatus, an input shaft side variable pitch circle gear, an output shaft side variable pitch circle gear and a cycloid sliding gear which have a shape accumulated by a cycloid gear in which a pitch circle continuously changes are meshed with each other. The cycloid sliding gear slides and an engagement position thereof changes, thereby changing a radius of an engagement pitch circle of the gear so as to change a shift ratio.Type: GrantFiled: March 30, 2000Date of Patent: March 26, 2002Assignee: Hitachi, Ltd.Inventors: Taizo Miyazaki, Toshimichi Minowa, Tomoyuki Hanyu, Ryoso Masaki, Yasuo Morooka
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Publication number: 20010017227Abstract: A hybrid vehicle is disclosed, in which the drive torque is controlled according to a target, and the engine operating point and the battery charging rate are controlled thereby as targeted to improve the fuel consumption rate of the hybrid vehicle as a whole An engine torque estimating unit estimates the engine torque based on the motor current, and an engine output correction unit.Type: ApplicationFiled: May 8, 2001Publication date: August 30, 2001Inventors: Masahiko Amano, Ryoso Masaki, Taizo Miyazaki, Tomoyuki Hanyu
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Patent number: 6258006Abstract: Disclosed is a transmission comprising a first power transfer path for transferring an output of an engine to a vehicle driving shaft through a planetary gear connected to a motor, a second power transfer path for transferring the output of the engine to the vehicle driving shaft through gears and, and a power transfer switch which switches over the first and second power transfer paths from one to the other. In a hybrid vehicle wherein an engine, a motor and a generator are connected to a planetary gear, a follow-up loss caused by the generator is avoided in the case where the engine stops and the vehicle travels with the motor alone. In high-speed running, it is avoided that an electric energy for stopping the rotation of the generator is consumed. Further, torque assist by the generator is not restricted by constraints of the planetary gear.Type: GrantFiled: February 4, 2000Date of Patent: July 10, 2001Assignee: Hitachi, Ltd.Inventors: Tomoyuki Hanyu, Hiroshi Sakamoto, Toshimichi Minowa, Taizo Miyazaki, Ryoso Masaki