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JP3842172B2 |
To provide soft disable braking for an electric power steering. An electric power steering system (10) includes a motor (34); and a soft disable controller (32) communicating with a motor to reduce an increase phenomenon of sudden reacti...
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JP2006304422A |
To provide an actuator which can achieve low cost and miniaturization and surely perform locking operation.Since a control circuit 112 cuts out power supply to a motor 106 after inputting detecting signals from sensors 110, 111 and after...
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JP2006304537A |
To provide an electromagnetic brake control unit which prevents a malfunction of a brake caused by a secular change of brake characteristics, changes a break releasing voltage at the start of an operation of a motor (at putting power sup...
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JP3841586B2 |
To provide a power window control device by surely detecting the catch of a window glass at the start of a motor and quickly avoiding the catch of the window glass. A power window control device 1 is provided with a first catch detection...
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JP3839142B2 |
To keep an electric motor in motion even if the ON failure of an ON/OFF switch occurs in one electric motor driving device, by providing a predetermined number of pairs of the electric motor driving devices, such that the other electric ...
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JP3838169B2 |
To increase regenerative energy. By referring to a table which associates the SOC of a battery and temperature with the charging upper limit power, the upper limit power is determined in accordance with the SOC of the battery and the tem...
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JP2006281394A |
To provide a method and an apparatus for braking a main spindle, by which method and apparatus, an appropriate braking operation can be performed in real-time according to a cutting load applied to a main spindle motor.The apparatus for ...
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JP3835522B2 |
To provide an opening and closing controller capable of realizing bite preventing function having a lower bite load. The opening and closing controller is so constituted that when an opening and closing body is at least closed, an impres...
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JP2006263894A |
To provide a device for releasing the motor brake of an articulated robot capable of preventing a rapid lowering operation of a robot arm after releasing the electromagnetic brake.This device is provided with braking resistance 22 connec...
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JP3829515B2 |
To provide a device for controlling stopping of an a.c. induction motor in a machine tool, which can satisfactorily prevent erroneous operation due to superposition of noise and which carries out satisfactory motion. Until 340 ms elapses...
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JP3830285B2 |
To provide a wiper control device incorporating a reversible wiper motor. A wiper control device comprises first and second relays RL1, RL2 connected to a wiper motor 2, a first drive circuit 13 connected in series to the first relay RL1...
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JP3828533B2 |
To provide a motor control apparatus in which the number of components can be reduced and the size and manufacturing cost of a product can be reduced, without using an additional braking power supplying unit for supplying braking power t...
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JP3830324B2 |
To supply a current to a first and second motor driving circuits by cutting off the current supplied to the fist and second motor driving circuits when the first and second contactors are contacted with the first and second contact plate...
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JP3830286B2 |
To provide a wiper control device furnished with a wiper motor free to reciprocally rotate. A wiper control device 1 is furnished with first and second relays RL1, RL2, a first driving circuit 13 connected to the first relay RL1 and a fi...
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JP2006262641A |
To shorten a searching time of an initialization pattern with regard to a servomotor and a servomotor driving device.A pulse signal having a different pattern change from the termination of the initialization pattern is outputted from a ...
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JP3825137B2 |
To reliably stop the rotation of a motor at any time during a short period irrespective of the environment in which the motor is used by correcting the impressing time of the braking signal in accordance with the detected power source vo...
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JP2006238638A |
To effectively suppress thermal expansion of a sheet film and to conduct a processing of the sheet film, for example optical processing (for instance optical transfer and exposure or the like of an image) with high accuracy, by taking me...
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JP2006230084A |
To provide a highly reliable dynamic brake capable of consuming an electromotive force, even if failure occurs in a system including any of a plurality of resistors, in a system including the other resistors.An alternating current is con...
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JP3815989B2 |
To provide a power window device detecting bite with the reduced storage capacity of a reference value memory 13, using the average operation parameter of divided movement regions moved immediately before, as the reference value of each ...
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JP3812712B2 |
To exactly detect a rotational speed and the number of revolutions of a brush-type DC motor with a simple and spaceless configuration, and to enable an effective rotation control. A pulse-number count means 151 of a motor-control circuit...
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JP3814061B2 |
To provide a motor control circuit for a multipole brush motor which protects a semiconductor element from a short circuit current when stopping a motor and, at the same time, can realize soft stopping, by relieving the brak ing force ap...
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JP3811558B2 |
To make it possible to close a valve perfectly, and to prevent breakage of a gear, etc., caused by obstruction caused by a foreign matter, by detecting the malfunction of the valve. A current quantity detecting element 52 detects the qua...
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JP3813856B2 |
To provide a motor drive controller which can eliminate the difference between the actual load position and the recognized position, which is produced after resetting to practice precise control. This motor drive controller has a microco...
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JP3812570B2 |
To enable continuous travel of a vehicle without overdischarge of a battery even at a time of failure of a motor and a generator in a control device for a hybrid vehicle having the motor 3 and an engine 2 generating driving force of the ...
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JP3812048B2 |
To achieve a judgment being strong against disturbance without delaying the judgment time, by decreasing sensitivity for pinching a foreign matter while time when the fluctuation value of detection operation state operates as a load agai...
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JP2006518980A |
The circuit has a controllable switch connected to a DC motor, and a brake circuit exercising brake short-circuit to the motor. A MOSFET transistor (M3) has an anti-parallel diode and is connected in series to the brake circuit to produc...
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JP3809911B2 |
To provide a raindrop sensing type windshield wiper system for improving wiring structure between a multi-functional switch (20) and a rain sensor module (10) to reduce weight and cost of a wiring harness, wherein the sensitivity of the ...
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JP2006211782A |
To provide a small and inexpensive servo controller having a ground fault detection function.This servo controller, consisting of: a converter section 3 for rectifying an AC power supply and generating a DC power supply; and a plurality ...
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JP3806577B2 |
To provide a motor PWM drive circuit which does not need two types of input signals, i.e., a speed control input signal and an S/S input signal, which a conventional circuit needs. A start/stop signal is generated from a PWM pulse signal...
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JP3806678B2 |
To provide a power supply device that detects the abnormality of an AC power supply and stops a short-circuit operation. An input cycle of a zero cross signal from a zero cross detection circuit that detects the zero cross point of the A...
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JP3807352B2 |
To reduce the number of times for making an initial setting by reducing an overrun angle of an electric motor during the timing from the stopping to the restarting of a motor control unit. When the motor control unit 220 is stopped by a ...
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JP3807335B2 |
To provide a motor control method and a motor control device displacing a movable part of the motor or a driven object driven by the motor in higher accuracy than in the past to a target displacement amount even when it is in a fine quan...
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JP3805657B2 |
To provide an electric power steering device in which a booster circuit is not broken even in the case where a motor becomes in the regeneration state. The booster circuit 100 is provided at a current feed circuit between a battery and a...
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JP3804341B2 |
To provide an inverter-controlled motor which can reduce protective operation at regenerating operation of an inverter-driven induction motor. An inverter-controlled motor contains a converter section 15 which converts AC power of an AC ...
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JP3804535B2 |
To control the quantity of inflow air to a radiator at a stop of a motor fan by a low-cost method. When the supply of power 3 to a motor 1 is stopped, the terminals 1a and 1b of the motor 1 are short-circuited. When a fan is rotated by t...
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JP3803489B2 |
To obtain a controller for a motor, wherein the nonconformity of the drive of the motor stops immediately can be avoided for surely preventing the damage to the motor. Sensing the feeding currents to a motor 1 with current sensors 12, 13...
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JP2006197766A |
To prevent an occurrence of malfunction in a system when an instruction to turn off the system is issued.When an instruction to turn off the system is issued, control is carried out so that driving of the motor of a motor-operated coolin...
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JP3800917B2 |
To provide a motor controller capable of smoothly stopping a motor in terms of motor deceleration. The motor controller controls the speed of the motor M, based on the feedback information (encoder signal) from the motor. If the pulse wi...
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JP2006187058A |
To provide a voltage feeder capable of utilizing a power supply charged by a counter electromotive voltage of a motor as a power supply of a small signal circuit.This voltage feeder includes: a power supply section 11 for supplying a pre...
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JP2006166504A |
To provide an inverter apparatus for preventing a cost and a size from increasing, and also preventing switching elements and a DC power supply from being damaged.A controller 11 turns on the switching elements 3, 5, 7 when a three-phase...
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JP3783359B2 |
To provide a motor driving circuit which can maintain a stop position precision even if a motor is rotated at a high speed. In a normal driving rotation, driving currents are supplied to two coils La and Lb so as to have a phase differen...
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JP3782076B2 |
To provide a plant controller which can simplify an electric brake device. This plant controller is made to apply an electric brake by outputting a command value to the effect that it should zero an exciting current to an excitation curr...
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JP3781221B2 |
To suppress speed variation and torque variation, by permitting a braking resistance to discharge DC voltage in this regenerative braking device, and setting a braking setting value for starting the discharge at a setting voltage value l...
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JP3780804B2 |
To provide a motor control unit and a control method where positioning accuracy of the stop position of an object to be driven of a motor is high. This motor control unit is equipped with a stop position predicting control which commands...
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JP3777936B2 |
To provide a motor control method and a control unit, which enable accurate control, while maintaining behavior stability of a motor in the case of reduction control. In this motor control method, when the maximum, speed of the motor as ...
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JP3776683B2 |
To exactly detect a rotational speed of every rotational direction and the number of revolutions of a brush-type DC motor with a simple and spaceless configuration, and to effectively control the rotation. A DC motor M1 comprises electro...
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JP3773512B2 |
To provide a motor power supply apparatus which can reduce a product size and a manufacturing cost. The motor power supply apparatus includes a resistor arranged in a first attached line, an overvoltage protective diode disposed in paral...
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JP3773794B2 |
To obtain a DC voltage with high precision without having to use a complex circuit configuration by a method, wherein the DC voltage is obtained by utilizing the input/output and voltage/current of a power converter and a control value w...
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JP3769898B2 |
To provide a vector control inverter driven deceleration motor requiring no setting of circuit constant at the installation site, or an inverter driven deceleration motor with brake which can be wired easily at the installation site. A d...
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JP2006109684A |
To provide a motor drive circuit, capable of controlling the torque, when braking a motor that is rotating in the positive-direction by applying a negative-direction torque to the motor.The motor drive circuit 3 is provided with a plural...
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