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Document Title |
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8093851 |
Fan module and system
A fan module, especially a fan module which may reduce a rotating speed of a fan automatically when an object with static electricity gets into the fan is provided. The fan module includes a frame,...
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7852021 |
Method and apparatus for minimizing forces on a web
A method of controlling a web in, for example, a web cutter that minimizes the destructive forces that are experienced by the web. The method includes providing a motor system for driving a web...
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7834566 |
Generic motor control system
A method for controlling the operation of a motor utilizing a generic motor control module. The method includes sampling at least one motor operating criterion during operation of the motor and...
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7746011 |
Vehicle seat, in particular a motor-vehicle seat
The invention relates to a vehicle seat, in particular for a motor vehicle, and equipped with a central control unit, motors, peripheral motor control devices each associated to one motor and...
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7672760 |
Searchlight
A searchlight (3) on board a vessel (1) arranged for illuminating a point (2p) and maintain said point (2p) illuminated regardless of the movements of said vessel (1).
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7230393 |
Motor control apparatus and motor control method
In response to detection of a skid of drive wheels based on an increase in angular acceleration α of a rotating shaft of a motor, the control procedure of the invention refers to a map ...
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7157871 |
Intermittent drive control apparatus of motor
Rotation of a capstan motor is detected by a frequency detector, and supplied to a CPU as a rotation detection signal CFG. The CPU derives a period of the rotation detection signal CFG, calculates...
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7095188 |
Serial fan set and rotation speed-matching curve generation method thereof
A serial fan set and rotation speed-matching curve generation method thereof are provided. The serial fan set comprises a rotation speed control module, a first fan and a second fan, in which the...
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7067996 |
Open-and-close control system for openable apparatus
In an automotive power window system, a controller detects positions of a window glass that moves through driving operation of a motor during the closing operation of a window. The controller...
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7023152 |
Driving control device for actuator
A driving control device for an actuator comprises a driving device to drive an actuator having an electric motor (30) and a driving control device (50) to control the rotation of the electric...
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6844691 |
Ventilator having an abnormal operation indication device
A ventilator having an abnormal operation indication device includes a power supply circuit, a central processing unit, a fan motor, and a load sensing circuit. Thus, the load sensing circuit...
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6815920 |
Motor driver and system with phase-spaced redundancy
A controller for a motor is provided. The motor includes N redundant M-phase rotor/stator combinations (where N and M are both integers greater than 1). The controller includes N driver circuits...
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6737828 |
Washing machine motor drive device
A washing machine motor drive device drives a motor using an inverter circuit, which implements a constant torque control through a change in the torque-revolution speed characteristic of the...
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6734644 |
Control method for wiper apparatus
A method (and apparatus) includes that a duty ratio of a driving voltage output to each wiper motor be required to be set according to several conditions. That is, while each wiper blade is moved...
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6674256 |
Battery powered, joystick controlled folding wheelchair
A battery powered, joystick controlled wheelchair includes a battery by which a supply of power can be provided, a joystick by which voltages proportionate to degrees of lean from a neutral...
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6600988 |
Vehicle trajectory control system and method
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...
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6402260 |
Vehicle anti-lock brake control system
A rotational speed of an electric motor 12 is memorized at a memory unit 21 as a set rotational speed for allowing a minimum required volume of brake fluid to be discharged from the pumps in a...
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6191547 |
Focus control for search lights
The focus angle of a search light mounted on a helicopter or other platform is narrowed or widened by rotating a bidirectional focus control cam in a clockwise or counterclockwise direction as...
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5629591 |
High-availability multicurrent power supply system for the traction unit of a railway locomotive
A system for powering a multicurrent locomotive having 2N motors where N is greater than or equal to 2, the system comprising 2N pairs of voltage converters respectively associated with the 2N...
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5270621 |
Procedure controlling the motor of a crane
The present invention relates to a procedure for selecting the mode of controlling the motor of a crane, or an equivalent lifting apparatus, when at least two alternative modes of controlling the...
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5134346 |
Apparatus for driving a spindle of an electroerosive machine
The driving apparatus for the rotation of the spindle or the work piece pallet of an electroerosive machining device comprises two electric motors which drive e.g. the spindle to a rotational...
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4918360 |
Electric-driving device for openable members
An electric driving device for openable members in which an openable member is opened and closed by rotation of driving shafts provided on right and left sides. The device includes a motor which...
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4767940 |
Electronic sensing and control circuit
An electronic sensing and control circuit is provided which includes a sensing plate and means for charging the sensing plate to a value dependent upon the capacitance existing between the sensing...
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4766356 |
Device for opening and closing a vehicle top
A device for opening and closing a vehicle top by rotations of drive shafts rotatably provided with both right and left sides of the vehicle, comprises two individual motors which actuate the...
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4518902 |
Plugging electrical braking control circuit
The invention pertains to a control system (46) for controlling the supply of power to a motor (12) to produce plugging electrical braking and current limit control, including a circuit (60) for...
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4471273 |
Dual-motor control apparatus
The invention pertains to a control circuit (10) for controlling the speed of a pair of motors (12,14), including a pair of switching elements (68,74) coupling power to the motors (12,14), a pair...
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4364047 |
Control lever switch
A control lever switch for providing steplessly adjustable control values, e.g. directional commands, for a plurality of outputs is based upon the provision of a number of electrodes in a spaced...
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4323829 |
Capacitive sensor control system
An electronic control system for controlling the operation of electromotive apparatus utilizes a capacitive sensor for sensing human touch and producing a command signal whose magnitude corresponds...
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4295080 |
System for controlling rotational direction switchover and for variably controlling rotational speed of motor
A system for controlling rotational direction switchover and for variably controlling the rotational speed of a motor comprises a circuit for switching over the rotational direction of the motor, a...
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4227126 |
Shaft rotation interlock system for film editing tables and the like
There is disclosed apparatus suitable for use in conjunction with film editing tables or other devices requiring precise control over shaft rotation speed, that is, apparatus for interlocking two...
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4012134 |
Bidirectional web medium drive
A bidirectional web medium drive for moving a web of material such as a roll of microfilm between two reels consisting of a pair of reversible motors coupled through irreversible drives to...
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3979649 |
Remote searchlight control system
A remote control system for controlling the azimuth and altitude of a searchlight and also a control for selecting one of two modes of operation, either spot or flood, of the searchlight. The...
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3965402 |
Headrest proportional control for motorized wheelchair
A head controlled mechanism for the proportional control of a driven devi A mechanism is provided whereby a control signal is generated proportional to the movement of the head of an operator to...
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3955129 |
Arrangement for controlling simultaneously several electric toys by a single circuit
A system for individually controlling simultaneously several electric model trains on a common track in which one of the trains is controlled in speed and direction by a voltage supply which...
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3917929 |
Systems and methods for solving simultaneous equation
An electrical model of a plurality of simultaneous equations, such as equations representing a dynamic propulsion system, is disclosed as including a plurality of transformers generally greater in...
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3896891 |
MODULAR MOTORIZED WHEEL CHAIR
The specification discloses a motorized wheelchair which can be quickly and easily disassembled into separate lightweight components. The separate components can be conveniently stacked to minimize...
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3798520 |
REVERSING CONTROL SYSTEM FOR ELECTRICALLY POWERED VEHICLES
A control system for effecting reversal of electrically powered vehicles, typically heavy duty off-road type work vehicles having electric motor driven wheels, characterized as follows: (1) a...
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3792328 |
D.C. MOTOR SPEED CONTROL
A speed control for a D.C. motor has a resistance connectable in series with an energy source and the motor armature for starting the motor, a series of voltage dropping diodes connectable in...
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3749192 |
COLLAPSIBLE WHEEL CHAIR
A collapsible wheel chair comprises: A. a base carrying wheel means, B. a seat unit, and C. there being tubular shaft means carried by the base and seat unit to provide a resiliently yieldable...
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3553546 |
PULSE CONTROL NEUTRALIZATION SYSTEM
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3448361 |
SELECTIVE-FREQUENCY POWERLINE LOAD CONTROL
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3384764 |
Control signal transmitter including complementary trigger and oscillator transistors
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3378777 |
Motor control circuit with phasing means for preventing erratic motor operation
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3355643 |
Plural remote controllers for plural motors using a common power connection
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3316503 |
Digital phase-modulated generator
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3315613 |
Remote control for model train system
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3316544 |
Real-time running mean generator
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3303403 |
Power controlling device for a remote toy equipped with a reversible electric motor
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3249836 |
Motor control system for battery-powered vehicle
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3109972 |
Plural generator fed motor control system
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