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JP3262988B2 |
To decelerate a slide door if the fault or abnormality of a CPU is detected when the slide door runs at a high speed. A slide door opening/closing control device 10 has a slide door slid to open/close the opening of a vehicle body, a mot...
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JP3261974B2 |
To hold a switching element in the off-state by judging an irregular short circuit of the feeding path from the operating condition (operation frequency) of over-current protection. This circuit protects, when a comparator 26 detects an ...
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JP3261913B2 |
PURPOSE: To stop an induction motor by controlling the gradient of deceleration so that the voltage type of inverter to drive the induction motor may not stop at emergency by overcurrent or overload when decelerating and stopping the ind...
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JP3263284B2 |
To quickly stop the chain of an electric chain saw at the time of trigger OFF, by jointly using electric and mechanical brakes. The rear end 23b of a brake band 23, arranged so as to fasten a brake drum 21 by operating a hand guard 17, i...
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JP3261914B2 |
PURPOSE: To shorten the time required for stopping a plurality of motors at predetermined positions. CONSTITUTION: First motor 10 having higher flywheel effect out of two motors is stopped freely and a position detection signal θ1, dete...
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JP2002064901A |
To provide an electric car controller that improves reliability and redundancy of a regenerative brake and capable of saving space and lowering its cost.During a regenerative operation, a plurality of brake choppers 7a to 7d are all oper...
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JP2002058108A |
To provide a control method and a controller for an electric rolling stock which enables to obtain braking torque than in the conventional case, when electric braking is conducted, using a main motor having items equivalent to the conven...
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JP2002054539A |
To provide a starter to be decreased in size and weight and a cost as a motor is pre-rotated and a pinion can be fitted in a ring gear.In the starter, a stater 5 of a DC motor 1 has a series winding field coil 2 formed that main coils 21...
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JP3257314B2 |
PURPOSE: To shorten the torqueless time following the operation stoppage of a chopper during a transitional period from regenerative braking to reverse rotation braking by shortening the transitional period as much as possible. CONSTITUT...
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JP3257302B2 |
PURPOSE: To prevent the free falling of a suspension load at the time of upper limit switch action and in addition realize safety and long life by making the lock time of a hoisting motor minimum by cutting off the electric current of th...
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JP3257566B2 |
PURPOSE: To provide a vector controller for stabilizing the operation of induction motor under low speed regenerative state. CONSTITUTION: A multiplier 41 calculates the product of a speed command ωr* and a torque current command Iτ*. ...
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JP2002051586A |
To see that reinforcement such as reinforcing rods buried in a substance to be excavated does not break during boring, by boring the substance to be bored, in a short time.A boring device is composed of a core bit 13 which has a bit to b...
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JP3255927B2 |
An electrical circuit for a switch having a lockout feature is described. The circuit permits both a primary operator and an auxiliary operator to operate a bi-directional motor by activating separate low-current switches. The circuitry ...
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JP3256309B2 |
PURPOSE: To obtain a highly operable drive controller for power windows which can nearly sufficiently detect the interposition of foreign matters, etc., and, at the same time, can make an interposition detecting function to work only whe...
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JP3255813B2 |
PURPOSE: To narrow the hysteresis width so as to improve the stopping position accuracy of a motor actuator by switching the drive of a DC servo motor to PWM drive from DC drive when the detected rotational position value of the servo mo...
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JP3256308B2 |
PURPOSE: To obtain a drive controller for power windows which can effectively avoid unnecessary interposition detecting operations and can effectively prevent the erroneous occurrence of an interposition. CONSTITUTION: When the threshold...
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JP2002044972A |
To make small a limit switch which is a component of an optical device in a motor drive device for operating a mirror of the optical device to move vertically and to swivel, which is mounted on a vehicle, of which the weight is required ...
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JP2002044973A |
To provide a control system for a permanent magnet motor which enables stoppage of the motor in a short time, even if an inverter fails or the power is shut down.The control system is constituted of a first switch provided on the output ...
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JP3253031B2 |
PURPOSE: To provide the method of controlling the motor of a power window, which performs exact operation of the motor by changing over the current supply to the motor separately for each present position of the motor. CONSTITUTION: This...
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JP2002031063A |
To provide a water hammering preventing device for a motor-driven pump capable of preventing occurrence of water hammering without using any flywheel owing to the slow stop function of an inverter, wherein the effect functions effectivel...
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JP2002034107A |
To detect a current that flows in a motor with high accuracy using a simple circuit structure.When a motor 9 stops, a fail-safe driving signal FS turns off a relay 29 to break a power source voltage VB. When the motor 9 operates, the sig...
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JP2002029625A |
To provide a roller with a built-in motor rotated by a brushless motor and stopped by an electromagnetic brake with a largest possible brake force by minimizing the heating of the electromagnetic coil operated to release the brake force ...
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JP2002027786A |
To provide a damping control system of a motor, which can obtain sufficient damping power with electric damping even during high speed rotation of a motor in the case where the number of rotations is controlled by a chopper.If an electri...
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JP2002027783A |
To eliminate hunting at an area near the target stop position at the time of stopping a synchronous motor to the constant position.An apparatus for realizing stop at the constant position has a three-phase motor 4, a controller having a ...
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JP2002027771A |
To apply brake in order to lighten impart on the occasion of reverse rotation by a spring which occurs when a motor is stopped, in a mechanism which is operates by the reciprocating movement of an actuator to be moved by the motor.A zene...
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JP2002027770A |
To provide a braking function without lowering the output of a motor.When the motor is operated, a switch 5 is connected as shown by the solid lines, and a closed circuit of power source 1-armature 4-parallel- connected brake coil 2 and ...
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JP2002027769A |
To provide a motor-operated retractable door mirror module which is easy to restart after a stop of the opening and closing of a door mirror.A battery power source 1 is connected to switches 2a, 2b. The switch 2a is connected to one powe...
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JP3248270B2 |
PURPOSE: To eliminate that an induction motor driven by an inverter is turned reversely when it is stopped while it is being brakes by the inverter. CONSTITUTION: When an operating-sequence signal F-RUN for an inverter is finished, an op...
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JP3245352B2 |
To omit the labor of switching operation, by driving a motor to open or close the door when the sliding motion of the door is detected by an optical sensor if the opening or closing control is not executed yet. A controller 87 provided w...
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JP3246829B2 |
PURPOSE: To reduce overcurrent passing through an a.c. motor at the start of direct-current braking. CONSTITUTION: When an operation stop command is output, an accelerating/ decelerating means 28 reduces the value of reference frequency ...
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JP3245351B2 |
To costlesly and responsively detect abnormal conditions, by measuring the rotary speed of a wire drum equivalent to the sliding speed of a door and rotary quantity of the wire drum by an optical sensor and detecting the motor load and m...
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JP3246840B2 |
PURPOSE: To process regenerated energy by a load without providing a processor by increasing the output frequency of an inverter main circuit when the detected value of torque component is higher than a set value under regenerative state...
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JP3245350B2 |
To costlessly and responsively detect abnormal conditions without additional special instruments, by measuring the rotary speed of a wire drum equivalent to the sliding speed of a door and rotary quantity of the wire drum by an optical s...
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JP2002010664A |
To exactly detect a rotational speed of every rotational direction and the number of the revolutions of a brush-type DC motor with a simple and spaceless configuration, and to effectively control the rotation.A DC motor 13 comprises elec...
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JP2002002454A |
To quickly return a wiper blade to a storage position without operating a wiper switch, when the wiper blade is stopped in a midway of a windshield or a rear glass when electric power is fed.When a driver turns off an ignition switch 2 f...
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JP2002004717A |
To provide a power window drive control device with a simple device composition, capable of conducting the highly accurate low-cost detection of pinching foreign matter.In a reference circuit (QB, R66, CMP2, R61, C61, R62, and TR61) for ...
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JP3245184B2 |
An apparatus for braking a rotary component of a fiber processing machine includes an asynchronous motor having a stator winding and an output shaft connected to the rotary component; a direct current generating device having an output c...
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JP2001359291A |
To provide a motor control circuit, including a motor protection circuit, which is formed in a simplified structure using few number of structural elements and moreover low price structural elements.This motor control circuit includes a ...
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JP2001356820A |
To provide the stop position controller of a motor in a molding equipment for easily performing a positioning work so that the spring groove of a rotary core equipped with a male screw in a die space can be located at a prescribed positi...
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JP3241252B2 |
To provide a system which has current control with excellent stability in regenerating, in an A.C. motor controller which always requires a compact size and highly efficient drive. A vector phase θc is calculated, by a voltage/current p...
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JP2001349135A |
To prevent malfunction of a motor of a drive even if a submersion accident happens, the drive being driven by activating relays for supplying power source to the motor 1 according to an operating condition of an operating section and for...
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JP2001349286A |
To provide an operation control system and method for a pump that can offer a slow stop even upon a service interruption and can reduce the size and weight of a pump.The operation control system for a pump comprises a battery 17 as an au...
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JP2001349136A |
To provide a power window apparatus which positively detects nipping in a short period of time, and minimizes malfunctions such as erroneous halting or inversion of window opening/closing operation when the window is not fully opened, fu...
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JP2001340681A |
To make various sensors unnecessary, which motors are used for realizing various sewing-machine functions such as halt at a predetermined position and the like and to solve problems of a sewing machine drive by a general servomotor such ...
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JP2001341531A |
To prevent the malfunction or the like of a motor even in case of a submergence accident in a driving device for rotating a motor 1 normally or reversely by actuating each relay for supplying the motor 1 with power according to the opera...
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JP2001341987A |
To provide a lifting device, preventing the destruction of electronic parts constituting a power circuit for supplying power to a lifting motor by effectively processing regenerative power generated when the lifting motor is rotated to t...
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JP2001341978A |
To provide an elevator for preventing breakdown of an electronic part constituting a power circuit for supplying a power source to a lifting motor by effectively treating regenerative power generated when rotating the lifting motor in th...
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JP3237446B2 |
PURPOSE: To eliminate lag in the stop operation of DC motor while prolonging the service life of a relay contact and to eliminate an incomplete operation while facilitating restart by connecting a positive characteristic thermistor betwe...
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JP2001339977A |
To shorten the time to decelerate and to stop in an emergency stop baking for an AC motor by fully utilizing the capacity of a common converter.In an AC motor speed adjustable drive device for a common converter inverter, the AC motor is...
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JP3235533B2 |
To avoid the instability of the control in a current region in which the polarity distinction of a real current is difficult by a method in which a switching means by which a signal inputted to a selective circuit is switched to the outp...
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