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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Yamada; Takahiro
Address:
Nagoya, JP
No. of patents:
13
Patents:












Patent Number Title Of Patent Date Issued
8288980 Apparatus for carrying out improved control of rotary machine October 16, 2012
In an apparatus, a norm setter sets, based on a request torque for a rotary machine and a rotational velocity of a rotor, a norm of a vector of an output voltage in a two-phase rotating coordinate system defined in the rotor. A phase setter sets, based on a deviation between a generated
8193743 Control device for electric rotating machine and method of controlling the machine June 5, 2012
A control device has a unit for preparing a pattern having first and second periods by comparing a triangular wave and a sine wave having an amplitude ratio set at each value of a modulation factor, and selecting one pattern corresponding to an instructed modulation factor, and a unit
8154229 Control system for multiphase rotary machines April 10, 2012
In a control system designed to use a plurality of voltage vectors expressing a switching mode for a switching circuit to thereby control a difference between a current actually flowing through a multiphase rotary machine and a command current value therefore within an allowable range,
8098032 Control system for multiphase rotary machines January 17, 2012
A control system is designed to use a plurality of voltage vectors expressing a switching mode for a switching circuit to thereby control a difference between a current actually flowing through a multiphase rotary machine and a command current value therefor within an allowable range.
8018185 Apparatus for carrying out improved control of rotary machine September 13, 2011
In an apparatus, a norm setter sets, based on a request torque for a rotary machine and a rotational velocity of a rotor, a norm of a vector of an a output voltage in a two-phase rotating coordinate system defined in the rotor. A phase setter sets, based on a deviation between a gene
7986117 Apparatus for carrying out improved control of rotary machine July 26, 2011
In an apparatus, a phase setter sets, based on a deviation between a generated torque and a request torque for a rotary machine, a phase of a vector of a variable output voltage of a power converter in a two-phase rotating coordinate system defined in a rotor of the rotary machine. A
7750595 Rotating machinery controller July 6, 2010
A rotating machinery includes a first control member for performing rectangular wave control by operating the switching devices of an inverter such that an on-state and an off-state occur once for one cycle period in electrical angle of a motor, a second control member for operating
7589486 Control system for multiphase rotary electric machines September 15, 2009
A control system controls, based on a comparison between a waved real current to be supplied to a multiphase rotary electric machine and a hysteresis region established by a waved command signal, a switching timing of a switching element of an inverter to which a direct current volta
7504790 Control system for multiphase rotary electric machines March 17, 2009
In a control system, a storing unit has stored a relationship between a workload associated with rotation of a multiphase rotary electric machine and a voltage utilization factor of the multiphase rotary electric machine. The voltage utilization factor includes information representing
7221122 Inverter control device May 22, 2007
An inverter control device controls the operation of an inverter connected to an electric motor. A switching vector SV is determined as an output switching vector SVo to be supplied to the inverter based on a current deviation of the coil winding of each phase of the electric motor and a
6569365 Process for molding an integral skin foam May 27, 2003
A semi-rigid integral skin foam having a low foamed integral skin layer and a highly foamed core is molded from a polyurethane formulation injected into a mold cavity having a reduced pressure of 400 Torr or below. The formulation comprises a polyol component, an isocyanate component, an
6479114 Steering wheel with air bag November 12, 2002
A steering wheel with an air bag comprising a pad with said air bag, at least one spoke and a ring, which are integrally formed of a polyurethane, is disclosed. The polyurethane has 50 to 70 of Shore A type hardness (at a temperature of 25.degree. C.) and 150% or more of elongation at br
6268057 Polyurethane materials, and products molded from the polyurethane materials using RIM July 31, 2001
A polyurethane material comprising a hexamethylene diisocyanate (HDI) trimer and a polyol is disclosed. Content of oligomer, which is equal to or higher than a pentamer, in said HDI trimer is restricted to 0 to 50% by weight, and 3 to 10% by weight of monool is added to said HDI trimer.










 
 
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