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Patent Searching and Data


Matches 2,151 - 2,200 out of 10,389

Document Document Title
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
JP2001333586A
To provide an abnormality detector for a vehicle power slide door, which can check whether a motor current application circuit of a vehicle power slide door controller operates normally, without driving a motor while employing a simple c...  
JP2001333585A
To improve operation quality of electrical actuator by preventing excessive rise in temperature.A controller 8 of electrical actuator 1 comprises a counter 13 for continuous use which is incremented over the operation period of a motor 4...  
JP2001333589A
To accurately and quickly detect the over load state of a motor due to a failure in a drive unit, etc., and applied to the motor.A motor controlled by a current command value ia is controlled by utilizing a disturbance torque observer. A...  
JP3232417B2
PURPOSE: To provide a controller for an inverter of an electric motor vehicle adapted to avoid an unnecessary operation of a protecting apparatus on the ground to generate at the time of shutting OFF regenerative load in the vehicle to b...  
JP2001327196A
To solve the problem that an excitation current decreases and sufficient braking cannot be obtained as the revolving number is decreased even if an electric brake is applied to a brushless excitation type generator.When a circuit breaker...  
JP3230406B2
PURPOSE: To obtain optimum brake response for which the run condition and comfortable riding are considered so as to attain improved safe run and comfortable riding. CONSTITUTION: A stroke θ of a brake pedal is detected, to set target r...  
JP3231122B2
PURPOSE: To move a head, which holds an article or the like by teaching with no user program executed, without colliding against the other member. CONSTITUTION: In the case of ordinary robot control, a user program is executed in a comma...  
JP3227908B2
PURPOSE: To miniaturize an inverter device and to reduce its cost by reducing the capacity of a damping resistor installed at the DC intermediate circuit of a voltage-type inverter device for driving an induction motor and eliminating it...  
JP3229145B2
PURPOSE: To make it possible to effectively utilize the capacitance of all resistors for operation by determining priorities in closing switching devices, calculating the number of resistors required from a calculated value of the estima...  
JP3225008B2
To reduce vibration and noises when an electromagnetic brake is put on by making a brushless motor revolve a stirrer and a revolving tub with the direct-drive system. This washing machine is equipped with a revolving tub inside the outer...  
JP3226261B2
To reduce the loss of a preexcitation circuit for DC motor due to generated heat by removing the resistance of the circuit by connecting a main switch for running, a DC motor, a forward/backward switching circuit, and main switching elem...  
JP3223057B2
PURPOSE: To provide an electric vehicle which has a small load at the time of manually pushing and in which the safety is improved by electrically braking when the speed is increased. CONSTITUTION: An electromagnetic brake releasing swit...  
JP3220890B2
PURPOSE: To constitute an absolute position coordinate system by transmitting a signal of an absolute position detected by the servocontroller to an external positioning device consisting a fixed loop as an ON/OFF signal of a binary numb...  
JP2001277909A
To correctly memorize the correct position of a seat when motor power is transmitted to a movable member of the seat through a flexible member. This motor-driven seat device 1 memorizes the seat position by transmitting the driving force...  
JP3215723B2
PURPOSE: To provide an automatic focusing controller by which the stop time of a motor is shortened and the speed of driving a lens is made high. CONSTITUTION: This automatic focusing controller is provided with a range- finding means 21...  
JP2001275374A
To provide a motor controller capable of accurately stopping a motor in terms of motor deceleration. The motor controller controls the speed of the motor M, according to a signal from the motor, which is driven via an H-bridge circuit 30...  
JP2001267150A
To prevent the occurrence of a deviation between the tap position of a control mechanism and the actual tap position of an on-load tape changer.In a motor-driven operating device 60, a separate automatic-reset torque limiter mechanism (t...  

Matches 2,151 - 2,200 out of 10,389