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JP6359223B1 |
The motor drive device (1) according to the present invention includes a rectifier (42) that outputs DC power, converts DC power into AC power and outputs AC power to the motor (3), and regenerates the motor (3). Sometimes, the inverter ...
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JP2018110474A |
To provide a control unit of a motor, which achieves smooth braking to a target speed with braking obtained by combining a regeneration brake and a reversing brake without using an expensive servo motor.A motor is driven by applying effe...
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JP6356716B2 |
A motor control device includes: a power failure detection unit that detects a power failure; a voltage detection unit that detects a DC link voltage; a switch unit which connects a motor to an amplifier or a resistance; a voltage compar...
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JP6353925B2 |
In conventional technology, one problem resulting from short-circuit braking that used voltage generated in a magnet motor during deceleration was that when the rotation speed decreased and the generated voltage fell, if the voltage gene...
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JP2018102074A |
To provide a vehicle control device that prevents over-voltages from being applied to components such as an inverter, by regenerative power generation by a motor generator accompanying torque reduction during speed change.A vehicle contr...
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JP2018099748A |
To safely and correctly diagnose a state of a brake of a motor with a brake.A brake diagnosis system 100 is a system for diagnosing abnormality of a brake on a robot 10 and comprises: a robot arm 102 which is driven by a motor with a bra...
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JP2018098974A |
To provide an electrically-driven power steering device capable of generating a larger brake torque as conventional one to an electrically-driven assist motor, even when the electrically-driven assist motor is rotated by an external inpu...
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JP6346583B2 |
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JP6342043B1 |
To suppress an increase in a phase current when a three-phase short-circuit process is performed, to reduce the size and cost, and to reduce the size and cost of a capacitor even when the power conversion circuit is disconnected from a D...
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JP6343273B2 |
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JP6343247B2 |
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JP6337731B2 |
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JP6324089B2 |
An information processing apparatus includes a first control unit that outputs a command for driving an electric part, a detection unit that detects an abnormality of the first control unit, and a second control unit that controls whethe...
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JP6321591B2 |
A servomotor control apparatus according to the present invention is a control apparatus for controlling a machine having one or a plurality of movable portions each driven by a servomotor. In the servomotor control apparatus, while an e...
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JP6320046B2 |
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JP6313463B2 |
When a power conversion apparatus and safety function unit are integrated, costs of component and development are expensive and the product price increases. A power conversion system includes a power conversion apparatus for driving a mo...
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JP2018510604A |
The motor device has a rotor, a stator, a plurality of windings mounted on one of the rotor and the stator and acting on the other, and a plurality of motor inputs connected to the windings. A motor, a drive mode in which the rotor is ro...
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JP6309935B2 |
A device can prevent a failure in the actuation of a braking mechanism, which is caused by adhesion of adhesive substances. The device includes a heating part for heating the braking mechanism, a heat controller for controlling a heating...
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JP6307983B2 |
To suppress increase of the DC link voltage and total amount of reflux current of an inverter, when a contactor connecting the inverter and a DC power supply is brought into an open state.An inverter controller executes pre-shutdown cont...
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JP6308551B2 |
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JP6305495B1 |
To provide an inverter control device and an inverter control method capable of suppressing an induced voltage when the induced voltage by a multi-phase motor may exceed the withstand voltage of a switching element of an inverter. An inv...
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JP6301511B2 |
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JP6297212B2 |
The disclosed embodiments relate to an electronic circuit for a motor-driven door of a rail vehicle, said electronic circuit having a series circuit of a first non-linear element and a first controllable switch between the motor terminal...
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JP6295407B2 |
To provide an inverter device capable of properly determining stop of an electric motor with no position detector, and a dehydration machine using the same.A control circuit 60 has current detecting means 66 for detecting AC current supp...
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JP2018039492A |
To solve a problem that a damping force gets insufficient in a high stroke speed region in a conventional suspension device.A suspension device includes: a spring 12 put between an upper-side member 10 and a lower-side member 11; a motor...
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JP2018042294A |
To provide an electric power conversion system or the like, with high reliability.An electric power conversion system 30 comprises an electric power conversion part 31 and a control part 33. The electric power conversion part includes sw...
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JP2018042369A |
To provide a motor capable of previously detecting a temperature rise in a terminal part before falling into severe abnormality, contributing to ensuring safety by suppressing a motor drive current, and attaining compactification, and a ...
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JP2018042303A |
To provide a motor capable of previously detecting a temperature rise of a terminal part before falling into severe abnormality, contributing to ensuring safety by suppressing a motor drive current, and detecting the temperature rise in ...
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JP2018042297A |
To provide a motor controller and air conditioner that are capable of eliminating a problem such as overcurrent generated in association with brake control, without providing a check valve at a compressor.A motor controller performs dece...
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JP6293080B2 |
The present invention provides a passenger conveying device and a control method thereof. During the power failure, the power is regenerated by an inverter device to realize the deceleration stop. A control circuit (11) detects the power...
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JPWO2017014063A1 |
It is necessary to control the rotation position when the motor is started, and it is not possible to start the motor quickly with high torque. When the rotation of the electric motor 5 is stopped, the control device 43 opens the relays ...
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JP6285477B2 |
A motor drive according to the present invention includes an inverter, a motor rotational speed obtaining unit, a motor inertia information storage unit, a motor rotational energy calculator, a dynamic braking circuit, a tolerance inform...
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JP6274085B2 |
A motor controller that is configured to switch power supply phases of the motor, to perform a limit-position abutment control by rotating the motor to a movable limit of a movable range of the rotation object to learn a reference positi...
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JP2018014781A |
To provide an electric car in which function of an electric motor for running can be used as a parking brake without the need for any current consumption during parking.An electric car comprises a short circuit 35, which short-circuits p...
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JP6264671B2 |
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JP2017229116A |
To provide a motor drive control device which can suppress, with a simpler circuit than in the prior art, an overcurrent which occurs in a motor winding when power supply from a voltage source is halted to promptly halt the motor.The mot...
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JP2017225213A |
To provide a control apparatus of a walk-behind type electrically-driven lawn mower, in which stopping within a specified time is surely achieved by switching from a regenerative brake to a short circuit brake.A control apparatus of a wa...
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JP6249779B2 |
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JP2017213614A |
To provide an electric tool capable of actuating a brake not through an inverter circuit.A brushless motor 6 comprises: a stator including a stator coil 6d composed of three-phase stator coils U, V and W of star connection and a stator c...
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JP2017216835A |
To provide a coating device which can be stopped only by an ordinary drive facility without occurrence of facility abnormality such as paper cutting when a power failure occurs.A converting apparatus comprises a control device. The contr...
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JP3213781U |
[Subject] It is installed in a general-purpose motor attached to comparatively small drive machinery, and brake equipment of a single function simple [structure] and cheap is provided. [Means for Solution] Normally closed type switch con...
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JP2017210854A |
To provide a controller for an automatic door used in a new way to automatically open/close a sliding door without causing a burden to an elder person, while maintaining a function of a hand and an arm of the elder person through opening...
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JP6239453B2 |
An electromagnetic damper is attached to a vehicle and causes oscillation damping force using a motor driven with energy from a power source. The electromagnetic damper includes an electrical circuit that causes a coil of the motor to be...
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JP6234869B2 |
The invention provides an injection molding machine which can restrain stop of a motor caused by overload of a regenerative converter. The injection molding machine comprises a motor, a driving circuit of the motor, a regenerative conver...
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JP6234868B2 |
To provide an injection molding machine allowing a check of the energy efficiency of a motor.An injection molding machine includes a motor, a drive circuit for the motor, a converter device having, in parallel, a first power conversion p...
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JP6229162B2 |
To perform control of lid lock means having high safety corresponding to drum rotation in failure.After speed of a drum 46 becomes substantially zero at braking time, control means 58 controls switching elements 51, 52, 53, 54, 55, 56 of...
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JP6229160B2 |
To perform control of lid lock means having high safety without a position detector.Control means 118 has speed calculation means 120 for calculating speed by receiving output of current detection means 119, it performs control for keepi...
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JP6226914B2 |
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JP2017191359A |
To provide a machine tool capable of improving waste of electric power of a servomotor, for a feeder in which a table to be fed is in a stopped condition.The machine tool comprises: multiple feeders 40, 50, 60 having feed screws, servo m...
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JP2017192299A |
To provide a safety circuit (28) for a rotary drive (18), in particular for a vehicle hatch.A safety circuit (28) causes a braking action to a rotary drive (18) when the rotary drive (18) is deactivated and external forces are applied to...
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