Abstract: A door opener error-start prevention device, the output shaft of the door opener is formed as a hollow accommodation portion, a pair of axial sliding slots are formed on the periphery, and a sliding pin radially inserted; a pair of elastic elements, abutting against the sliding pin from both ends, the outer end of each elastic element fixed by a bolt; a sprocket assembly is rotationally invaginated on the output shaft, one end having a sprocket , the other end formed with a pair of V-shaped slots corresponding to the sliding slots on the output shaft, both ends of the pin engage in the V-shaped slot to drive the sprocket. When an error start of the door occurs, the door returns to the original position by actuation of an obstacle sensing device actuated by the sliding pin, the sensitivity of which is adjusted by a bolt at the outside of the output shaft.

Abstract: A drive is provided with an electric motor including a rotor, a stator and a rotor shaft coupled to the rotor. The rotor shaft is coupled via a reduction to a rotatable drive, while the drive is provided with at least one measuring device designed for measuring a load applied during use via the reduction to the electric motor.

Abstract: An input shaft speed signal for rotating a motor at a predetermined rotational speed is output from a rotation control unit to the motor. A rotational speed reduced by a speed reduction device with elastic bodies is detected by an output rotation sensor. A CPU obtains slippage by calculating a reduction ratio based on the detected output shaft speed signal and input shaft speed signal. Load torque is determined from the obtained slippage. A current value to be supplied to the motor is determined so that the motor produces torque corresponding to the load torque. The current value to be supplied from a motor driver to the motor is thus controlled.

Abstract: A substrate splitting apparatus and a method for splitting a substrate using the substrate splitting apparatus are provided. The substrate splitting apparatus includes a servo motor, a transmission device, a substrate breaking bar, and a stage. One end of the transmission is directly or indirectly coupled to the servo motor while the other end is coupled with the breaking bar. The stage has a load-lock surface and the load-lock surface faces the breaking bar. The servo motor drives the transmission device to move the breaking bar toward the load-lock surface. A substrate with a pre-crack on the bottom is disposed on the load-lock surface. The servo motor drives the substrate breaking bar to move towards or away from the pre-crack. The method of splitting includes the following steps: forming a pre-crack on the substrate; controlling the servo motor to drive the breaking bar to move towards the substrate; and controlling the breaking bar to press the substrate at the pre-crack.

Abstract: Disclosed herein is a driving device of armature balance machine, in which a driving motor is formed on the same centerline of the armature, a hinge block pivot-connected by the hinge shaft is installed in the finger mounter of the bracket in such a manner that the hinge shaft is disposed on the same centerline of the driving motor and the variable roller is formed at one side of the hinge shaft, the finger provided with a complementary roller is symmetrically constructed about the centerline of the driving motor, and thereafter a belt is wound around each roller, so that the construction of the driving motor can be simplified and thus the length of the belt is minimized and the vibration of the belt is minimized, thereby enabling to keep the tension applied to the belt in an optimum state, due to the facts that the tension of the belt is symmetrical about the centerline of the belt and also the variable roller i.e. the tension adjusting means is not operated by the belt.

Abstract: A race car system is disclosed. An illustrative embodiment of the race car system includes at least one car, at least one video camera provided on the at least one car, a car transmitter/receiver connected to the at least one video camera, a remote control transmitter/receiver adapted to exchange transmission signals with the car transmitter/receiver, a remote control central processing unit having a screen connected to the remote control transmitter/receiver and a speed control unit and a steering control unit connected to the remote control central processing unit.

Abstract: The invention relates to an electromechanically activated motor vehicle transmission (31, 14) such as an automated manual transmission (31) or a transfer case (14). This transmission comprises at least a transmission housing (11), an electromagnetic selecting or shifting device (1) and an electric motor (2, 8, 22) by means of which the selecting or shifting device (1) can be actuated. In the inventive motor vehicle transmission (31, 14), the electric motor (2, 8, 22) of the selecting or shifting mechanism (1) arranged within the transmission housing (11) and the motor housing (9, 12, 24) of the electric motor (2, 8, 22) is designed so that it corresponds to a portion of the transmission housing (11).

Abstract: A motor control method that includes the steps of: rotationally driving a motor that is provided with a rotor having permanent magnet pieces, and a stator; and short circuiting a plurality of phases of the motor when the rotational frequency of the motor is equal to or greater than a predetermined rotational frequency.

Abstract: A power steering apparatus includes an electric motor, a temperature sensor, and a control unit. The electric motor produces an assist steering effort in a steering system. The temperature sensor measures a temperature of a first portion subject to thermal influence of operation of the electric motor. The control unit determines an estimated temperature of a second portion in accordance with a value of a motor current, the second portion being subject to thermal influence of operation of the electric motor. The control unit determines a first upper limit value in accordance with the measured temperature; determines a second upper limit value in accordance with the estimated temperature; limit the motor current to a smaller one of the first and second upper limit values, when determining that the temperature sensor is normal; limit the motor current to the second upper limit value, when determining that the temperature sensor is abnormal.

Abstract: Electronic control system for an actuation device of operating groups of a vehicle comprising an electronic gearcase that allows the activation and deactivation of said at least one device to be managed. The gearcase defines a first operating condition of the selective actuations defined as rest, a second condition defined as block and a third condition defined as transitional, which is a passage step between the other two conditions.

Abstract: A drive system for a machine, in particular a weaving machine, is designed in a manner such that controlled electric power is applied to a rotary electric drive motor (2) as a function of particular angular positions of the motor and such that electrical energy applied to the motor is reduced or interrupted during phases of increasing angular speed of the motor. Phases of increasing angular speed are detected by the drive system to determine phases of increasing angular speed. A method for controlling an electrical motor drive system using a switchable reluctance motor to reduce or interrupt electrical energy supplied to the motor based on motor speed increases as a function of motor angular position is also disclosed.

Abstract: A model vehicle control apparatus. A button controls an aspect of the model vehicle system, or multiple aspects, such as both sound and control. The button is configured to provide more than two outputs depending upon the manner of activation by a user based on pressure or position (more than ON/OFF). Signals corresponding to those outputs are then transmitted to a model vehicle, accessory, or other apparatus in the system. In one embodiment, the button is a pressure-sensitive button. Variations in the pressure select among multiple different possible outputs. For example, a number of sounds can be stored in a memory, with varying pressures selecting different sounds to be played. These sounds can vary non-linearly, not just getting louder, but also changing in type, pitch, etc. Thus, by a variation in pressure, a user can play the sound like a musical instrument. A second embodiment would allow for control of speed and direction of model vehicle, engines and accessories.

Abstract: The invention provides an article transport vehicle that includes: a vehicle body; a first wheel that supports the vehicle body; a second wheel that is disposed spaced apart from the first wheel in a fore-and-aft direction, and that supports the vehicle body; a first drive motor capable of driving the first wheel; a second drive motor capable of driving the first wheel; velocity sensor for obtaining information necessary for obtaining a velocity of the vehicle body; and controller for controlling the first and the second drive motors, wherein the controller performs a first travel velocity control with respect to the first drive motor so as to control the first drive motor based on a difference between a target travel velocity and a travel velocity based on a detection by the velocity sensor, and performs a first conflict suppress control with respect to the second drive motor so as to control the second drive motor to reduce conflict with driving of the first wheel by the first travel velocity control.

Abstract: Before an amount of play in a rotation transmitting system is learned, for selecting a gear range, an overshooting control process is performed to cause the angular displacement of a motor to overshoot a target gear range position and then reverse the electric motor. The angular displacement of the motor overshoots the target get gear range position by an overshooting amount that is identical to am amount by which the electric motor is reversed. The overshooting amount is set to a maximum value of a designed amount of play in the rotation transmitting system After the amount of play is learned, for selecting a gear range, a target count is established in view of the learned amount of play and the direction in which the motor rotates, and the motor is stopped at a position where an encoder pulse count coincides with the target count without performing the overshooting control process.

Abstract: A method and apparatus for determining a preferred operating range for a plurality of torque-generative devices is provided. Each device is operable to provide motive torque to a transmission. The invention includes defining a first and a second operating range in a first operating space. The first operating range and the second operating range are mathematically transformed to a second operating space. The preferred operating range is defined in the second operating space based upon the transformed first operating range and the transformed second operating range. The first operating range is defined based upon torque output for each of the torque-generative devices. The second operating range is defined based upon output of an electrical energy storage device operable to provide electrical energy to each of the torque-generative devices.

Abstract: A moving member mechanism includes an electromagnet having a coil for driving a moving member, a first control mechanism which has an input portion which receives command information and an amplifier which supplies a current to the coil, and an offset compensation mechanism which includes a first integrator which time-integrates a signal at an input portion of the amplifier. The offset compensation mechanism is configured to negatively feed back an output from the first integrator to the input portion of the first control mechanism.

Abstract: A method for evaluating a condition of a switching device. The switching device includes contact parts, an electric motor and a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts. A self-diagnostic test is performed on a component of the switching device. The test includes making at least one small movement with the electric motor. A switching device includes contact parts, an electric motor, a mechanical coupling device for transforming motion from the electric motor to at least one of the contact parts, and tester for making self-diagnostic tests, wherein the tester makes small motor movements that are a fraction of a full breaking movement, thereby producing data for evaluating a condition of the switching device.

Abstract: Movement of a movable barrier (10) such as, for example, a vertically-dropping fire door, can be controlled in an informed manner and with greater flexibility regarding the manner of movement via, in one embodiment, use of a motor (20) as a generator to resist the downward movement of the barrier. One or more dummy electrical loads (22) can be used in combination with the generator mode of operation to influence the degree of braking proffered by the motor. In various embodiments, one or more sensors (25, 26, 27) can be used to detect local and remote conditions of interest to thereby at least partially inform the barrier movement decision process. A display (90) (or displays) can serve to provide various kinds of information to authorized personnel and an operator control (120) can serve, at least under some operating circumstances, to permit a person to locally cause a closed barrier to move to at least a partially opened position.

Abstract: A method of providing ride-through capability in a chiller/refrigeration system employs a variable speed drive with an active converter stage, a DC link stage and an inverter stage for providing variable frequency and voltage to power at least one motor. An induction motor is coupled to the output of the inverter stage for driving a compressor in the chiller/refrigeration system. The ride-through method comprises operating the active converter to regulate the DC link voltage of the DC link stage to a predetermined voltage level until the current through the active converter equals a predetermined current limit, then transferring regulation of the DC link to the inverter upon reaching the current limit of the converter. The compressor is unloaded, and the power flow through the inverter is reversed to maintain the voltage level of the DC link stage.

Abstract: A position control method by motor drive including of rotating a rotor of the motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, the motor drive opening and shutting a passage of an intake air pipe to a turbo charger of the automobile by the movable vane, and controlling the movable vane in the passage of the intake air pipe so that it reaches the target opening. The rotational position of the motor drive is controlled to the stop position in the direction where the movable vane is closed and the stop position in the direction where the movable vane is opened. The motor drive is controlled so that the passage of the intake air pipe becomes the target opening by setting the stop position as an operation reference position of the motor drive, and setting between the stop positions as the driving dynamic range motor drive.

Abstract: To provide a power transmission device that can increase the range of speed variation between an engine and a power output shaft and effectively achieve reduction in size and cost of the device arrangement. The speed reduction ratios from an engine 1 to first output shaft 4c, 5c of first and second power distributors 4, 5 are different from each other. A speed change unit 10 is provided between the first output shaft 4c of the first power distributor 4 and a power output shaft 11 linked with driving wheels 2, 2 of the vehicle, and rotation transmission therebetween is achieved at a plurality of stages of speed reduction ratio. The rotation transmission from the first output shaft 5c of the second power distributor 5 to the power output shaft 11 is achieved via gears 20, 15b or rotation transmission mechanisms 15, 14 of a speed change unit 10 at a plurality of stages of speed reduction ratio.

Abstract: The invention relates to an actuating apparatus that can be used, for example, as an actuating apparatus for a motor vehicle transmission, the select function and the shift function being guaranteed by this actuating apparatus and it being possible to effect this using exactly one electric motor, and it being possible, starting from an original gear, to alternatively engage at least three different target gears without it being necessary in between to shift into an intermediate gear.

Abstract: The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch, which is driven by an electric motor. In order to create a method to prevent the formation of a resonance oscillation of the articulated chain, it is proposed that a periodic and/or stochastic and dampening actuating variable is superimposed on the velocity of the chain wheel (4) and the dampening actuating variable produces a change in the chain velocity so as to prevent a formation of a resonance oscillation. The chain drive with reduced polygon effect is characterized in that an electronic damper (8) is hooked up in front of the electric motor (2), which produces a control of the electric motor (2) such that a formation of a resonance oscillation of the articulated chain (5) is prevented.

Abstract: A metal or plastic tube is formed with slots to establish a noise dampening coupling to isolate the head rail of a window covering from vibrations from a motor in the head rail. The noise dampening coupling can be coupled to the output gear of the motor and to an actuator in the head rail to couple the motor to the actuator while isolating the head rail from vibrations. Also, a non-rotatable noise dampening coupling can be interposed between the motor and head rail to further isolate the head rail from vibrations.

Abstract: A control system for a weld motor for a strapping machine is based upon the number of rotations of the weld motor. The system is used in a strapping machine of the type having a body, an anvil mounted to and movable relative to the body, a sealing member disposed for oscillating movement relative to the anvil and a motor operably connected to the sealing member to provide oscillating movement to the sealing member. Movement of the sealing member seals overlying courses of strapping material to one another. The control system includes a sensed element located on a rotating portion of the motor, a sensor for generating a signal at each instance of sensing the sensed element, a counter operably connected to the sensor for counting the instances of the sensed element and a controller for controlling operation of the motor based upon the counting of the instances of the sensed element. A method for controlling a motor is also disclosed.

Abstract: A door opener error-start prevention device, comprising?a door opener machine, an output shaft of which forms a pair of axial sliding slots by means of passing through a central hole, a sliding pin being inserted into the sliding slots, a compression spring in the central hole abutting against the sliding pin; a sprocket assembly which is connected to the output shaft, one end of which comprises a sprocket that synchronously moves with a sprocket of a rolling shaft of a door through a chain, and the other end of which comprises a sleeve, a pair of V-shaped slots being formed in respect to the sliding slots of the output shaft, and respective engaging with both ends of the sliding pin.

Abstract: A system for extending and retracting expandable rooms in vehicles. The system employs linear actuators that can be mounted laterally to the direction of movement of the room when it is expanded or extended. In order to provide for extending and retracting the room, the actuators are connected to heavy chains which are connected to the main body of the vehicle structure and which will flex in one direction only. The chains ride in tracks such that when the actuators are retracted, the room will be extended, and when the actuators are extended, the room will be retracted. The system includes infrared sensors that sense movement of each chain to produce a signal that is used to synchronize movement of all of the actuators as the room is extended or retracted.

Abstract: A control for DC motors, in particular actuators driven by a DC motor for adjustment of furniture, such as tables, beds, chairs, etc. includes a pseudomotor which is capable of supplying a voltage that corresponds to the motor speed on the basis of the current and voltage supplied to the motor. The voltage of the pseudomotor is supplied to an adjustable power supply, where it is compared with an internal reference voltage and adjusts the voltage difference down to the smallest possible difference between the voltage of the pseudomotor and the internal reference voltage. For greater accuracy, the control additionally includes a compensation circuit configured to evaluate a dominating frequency in the commutator noise. Thus, there is provided a simple and low cost control for parallel running of two or more actuators.

Abstract: An induction actuated container includes a container body, a container cover, a drive and an induction element. The drive includes a driven operating member and a driving member. The induction elements includes a sensor and an actuating controller for the driving member. One end of the driven operating member is transmissively connected with the container cover, the other end is transmissively connected with the driving member, and the sensor is electrically connected with the actuating controller for the driving member, and the actuating controller for the driving member is connected with a controlling end of the driving member. A signal caused by the approaching of a human or object is received by the sensor and is converted into an electrical signal. Then, the actuating controller for the driving member controls the driving member to perform a corresponding mechanical action.

Abstract: A trash bin equipped with an automatic lifting lid includes a lid mounted onto a bucket. The lid has a base seat to hold batteries, a switch, a circuit board and an electronic component, a motor and a reducing gear box. The circuit board includes the electronic component and an induction controller which is extended to form an induction line located on the peripheral rim of the base seat. The reducing gear box is located on the rear end of the base seat and has a reducing gear set driven by the motor. One gear is extended above a trough located on the rear end of a shell to engage with another gear located at the rear end of an upper lid to transmit rotation and lift the upper lid. When energized by electricity, the induction line on the peripheral rim of the base seat may be induced to actuate automatic lifting of the upper lid to receive garbage.

Abstract: An improved control method activates an electric motor to drive a torque-to-thrust converter for controlling the torque capacity of a clutch mechanism. The control utilizes a model-based feed-forward control in combination with a closed-loop position feed-back control. The desired clutch torque capacity is characterized in terms of a desired motor position, and the feed-forward control models the motor speed and position response to changes in the desired motor position. The modeled speed and position, in turn, are used to create a feed-forward command, and the feed-forward command is combined with a feedback command based on actual position error.

Abstract: In an electrically driven automobile, a dynamo-electric generating device(s) is attached to one or more free-running wheels of the vehicle, which are not connected to the power drive of the vehicle. The free-running wheels are rotated by contact with the road surface as the vehicle is powered forward. The free-running wheels rotate one or more electric generating devices to produce electrical energy which is stored alternately in one or more electrical storage systems. The other non-charging electrical storage system(s) concurrently provides power to the electric motor which drives the vehicle through one or more of the wheels connected to the power train.

Abstract: An electronic motor control system includes a brushless DC machine having an armature and a stator with at least three phase windings, a commutation circuit including a DC power supply and switching devices associated with the windings to supply current two selected pairs of the windings and anti-parallel unidirectional current devices which provide current paths to dissipate energy stored in each windings after the supply of current through the associated switching device has terminated, a programmable commutation logic circuit responsive to the current signals in the windings for providing switching signals to the commutation circuit to cause rotation of the armature, a current sensor in circuit with the power supply for sensing the supply current and producing current signals, a controller responsive to the current signals, an additional unidirectional current device connected between each winding and the power supply, the direction of conduction therethrough being opposite to that of the first-mentioned u

Abstract: An actuator for remote operation of a switch, such as a recloser-type circuit breaker in a power distribution network, comprises an electric mechanism including an electric motor and electro-magnetic clutch mechanism, which is energisable to connect the motor drive to mechanically operate the switch on command and which is otherwise mechanically disengaged from the switch such that the switch may operate freely, and a receiver arranged to receive remotely transmitted command signals for the electric mechanism.

Abstract: A method for controlling a powertrain of a vehicle is described. The method determines a desired vehicle condition based on three driver actuated elements. In a preferred embodiment the first element can be pedal position, the second element can be a brake actuator or, more specifically, brake actuation duration, and the third element can be a gear selection lever. Further, the desired vehicle condition can be desired powertrain output, vehicle acceleration, or various other parameters.

Abstract: An electric power assisted steering system of the kind in which an electric motor is operatively connected to a steering assembly through a gearbox to apply an assistance torque to the steering assembly and in which the steering assembly includes a steering column coupled at one end to a driver's handwheel and at the other end to steerable wheels, a means being provided for generating a signal representative of the velocity of rotation of the steering column. The system includes a high pass filter which is adapted to generate, for frequencies below a prescribed threshold, a signal at least approximately proportional to steering column acceleration and representative of the inertia of the rotor of the electric motor, the latter signal being arranged to be used to compensate for the motor rotor inertia in an overall assistance torque demand as developed by the system.

Abstract: A monitoring apparatus for monitoring operation of a no-back device of an actuator assembly driven by a motor, the apparatus comprising sensor device operable to sense an operating parameter of the motor for determining when the motor's output drive is in a direction opposite to a selected direction of motor output drive.

Abstract: Embodiments of the present invention provide methods and apparatus for controlling seats and for monitoring behavior of power-actuated seats. Certain embodiments permit seat occupancy data, e.g., whether the seat is occupied or a weight-dependent characteristic of the occupant of the seat, to be collected by moving a part of the seat with an actuator. This seat occupancy data may then be used to control other aspects of the seat operation, e.g., set an operational limit of the actuator or reduce auxiliary power to other systems associated with the seat if the seat is unoccupied. For example, part of the seat may be moved with a first actuator, including detecting a control parameter at which the part of the seat begins moving. This control parameter may be correlated to an actuator limit.

Abstract: A control apparatus for a vehicle includes an engine, first and second electric motors, an output shaft connected to a drive wheel 41, a differential gear device, the gear elements of which are connected to the engine, the first and second electric motors, and the output shaft, respectively, target output torque setting means for setting target output torque, control torque calculating means for setting a target output torque, and torque control means for controlling a torque in accordance with the control torque. The control torque calculating means includes engine non-rotational state forming means for bringing the engine into a non-rotational state. Since the electric motor torque can be controlled independently, the target output torque can easily be generated, allowing easy generation of a target output torque in the state where the engine is stopped as well as preventing the output torque loss.

Abstract: The present invention relates to a device in an electronic driving dynamics control system, comprising an electromechanic transducer, especially an electric motor, a hydraulic pump (17), and an electric actuating unit (4,5,16) for the transducer, said transducer including a magnetic or magnetizable stator (10) and a rotor (11), as well as connections (6 . . . 9) for connecting the actuating unit, and a commutation device (2,12 . . . 15) for the actuation of electromagnetic windings of the rotor, said invention inhering the special feature that the commutation device comprises three or more commutating elements (12 . . . 15) that are electrically connected to the respective connections so that the windings of the rotor can be actuated individually by the actuating unit (4,5,16), with at least one commutating element being connected to a change-over element (5) that provides for an additional connection (21) for connecting a rotational speed measurement device (4).

Abstract: A direct-current power supply connecting the negative pole bus of an inverter circuit and the neutral point of a motor and a capacitor connecting the positive pole bus of the inverter circuit and the neutral point of the motor are provided for performing the switching control of the transistors T1-T6 of the inverter circuit on the basis of a phase voltage command value formed by the addition of a direct-current component and an alternating-current component. The voltage between the terminals of the capacitor is controlled on the direct-current component, and the driving control of the motor is performed on the alternating-current component. The supply voltage of the direct-current power supply can be made to be lower than a voltage necessary to drive the motor.

Abstract: A power device of the scooter comprises a motor and a unidirectional bearing. The motor is mounted in proximity of the rear wheel of the scooter and is provided with an output shaft which is connected with the axle of the rear wheel. The unidirectional bearing is disposed on the axle of the rear wheel to provide a unidirectional clutching effect enabling the rear wheel to receive the power transmission of the motor in a predetermined manner. As the motor is started, the output shaft of the motor drives the rear wheel to turn at a constant speed. As the motor is stopped, the rear wheel in motion is hauled to turn on its own.

Abstract: An electric power supply system for dock equipment at a freight loading dock, such equipment including dock levelers and truck restraints which are powered by electric motors. The emergency power supply system utilizes electric powered freight moving vehicles, such as lift trucks, which include on-board storage battery electric power sources. The dock equipment includes controllers which are provided with selector switches for selecting power from an electrical distribution system or from the lift trucks by way of a disconnectable power cable assembly. An AC voltage step-down transformer and rectifier are provided for supplying the proper voltage to the controller, depending on the voltage and current characteristics required of the dock equipment motor or motors.

Abstract: An electronic detent apparatus and method for simulating a mechanical detent comprises a sensor connected to a microprocessor. A servo-motor is connected to the microprocessor and has a motor drive connected to a clutch. The clutch may engage a wheel disposed upon a rail or surface to effect the simulation of a mechanical detent through the microprocessor controlled servo-motor. The method for simulating a mechanical detent comprises the steps of moving an axis and monitoring the position and velocity of the axis. The position and velocity of the axis is then compared to a pre-specified position threshold value and a pre-specified velocity threshold value using a microprocessor disposed on the axis. A servo-motor is activated to accelerate the axis to a pre-specified position using a clutch controlled by the servo-motor when the position and velocity of the axis exceed the pre-specified position and velocity threshold values.

Abstract: The present invention provides a controller for a model toy train set. In a first aspect of the invention, the controller includes a plurality of input connectors for receiving supply power from one or more remote power supplies and providing such power to a plurality of output connectors. In a second aspect of the invention, the controller includes an input device for producing an input signal to limit the amount of output power supplied from the controller to a toy train set when the controller is remotely operated from a remote transmitter. In a third aspect of the invention, the controller includes a programming circuit having a first mode for controlling a plurality of output channels from separate sets of inputs and a second mode for controlling the plurality of output channels from a single set of inputs.

Abstract: Apparatus and method for controlling picture quality in a transfuse xerographic machine has independent velocity control of image transfer and transfuse belts or rollers when they are disengaged from each other and a common velocity control when they are engaged with each other. The machine can be a monochrome or color copier or printer. Various rollers can be the drive and/or the encoder rollers.

Abstract: A drive device, in particular a locking device, having an actuating drive for driving a moving element as well as a position detection device for detecting the position of the moving element, in which case the invention provides that the position detection device has a magnet element which is fitted to the moving element, as well as a Hall element which is arranged in the vicinity of the magnet element, in which case the Hall element is integrated in an electronic module.

Abstract: A power transmission apparatus manipulates the transmission of power of the mechanical and/or electrical form. The power transmission apparatus is constructed integrating together a power-transmitting device and a transmission interaction redistributing mechanism. The interaction redistributing mechanism redistributes, or remaps, an optimized section of the operating speed range of the power-transmitting device onto the full operating speed range, including the stall speed, of the power transmission apparatus. Full operating speed range, including low speeds, is optimized. In a mechanical implementation of the apparatus, an epicyclic gear train is utilized as the redistributing mechanism. In an electromagnetic implementation of the apparatus, a rotary commutator is utilized as the redistributing mechanism and the power-transmitting device is an electromagnetic device. The mechanical implementation is capable of handling mechanical-to-mechanical mode of power transmission.

Abstract: A movable barrier operator includes a wall control switch module having a learn switch thereon. The switch module is connectable to a control unit positioned in a head of a garage movable barrier operator. The head unit also contains an electric motor which is connected to a transmission for opening and closing a movable barrier such as a garage door. The switch module includes a plurality of switches coupled to capacitors which, when closed, have varying charge and discharge times to enable which switch has been closed. The control unit includes an automatic force incrementing system for adjusting the maximal opening and closing force to be placed upon the movable barrier during a learn operation. Likewise, end of travel limits can also be set during a learn operation upon installation of the unit.

Abstract: In a reciprocating drive device, for example, in a power window device for a vehicle, a drive member is reciprocated by transmitting a rotating force from a motor to a regulator. A driven gear of the regulator is engaged with a drive gear fixed outside a synthetic resin housing of the motor to an output shaft of the motor. In the reciprocating drive device, a relative movement between the housing of the motor and a support base to which the housing is attached with screws is surely prevented by a relative-movement preventing unit having an engagement structure between the support base and the housing.