Class 700/151 - Speed control

Subclass of Class 700 - Data processing: generic control systems or specific applications
Definition: Subject matter wherein the controlled or detected condition
No. of patents: 23
Last issue date: 03/11/2008

Number	Title	Issue Date
7343505	Method and apparatus for thermal control of electronic components A method and system are provided for thermal management of a CPU. Both hardware and software data are used to periodically calculate a power consumption index. An internal database is provided to convert power consumption data to rotational speed of an associated co...	03/11/2008
6772104	Method for determining transportation vehicle customer satisfaction Within a method for predicting customer satisfaction for a transportation vehicle there is measured for the transportation vehicle a Noise, Vibration and Harshness (NVH) level within the transportation vehicle when an engine which powers the transportation vehicle i...	08/03/2004
6487944	Machine tool and control method therefor In cutting a high-accuracy thread, a control unit (CPU) uses a first position data calculation program to determine the moving positions of a workpiece and tool every predetermined rotational angle of a spindle rotating motor. The control unit stores the ...	12/03/2002
6128934	Stretch reduction mill A method and apparatus that provides a multiple-stand stretch reduction mill. A single master controller monitors and controls the roll speed at each roll stand in the mill, automatically and simultaneously maintaining each stand's roll speed at a pre-det...	10/10/2000
5835874	Region limiting excavation control system for construction machine In a region limiting excavation control system for a construction machine, a region where a front attachment (1A) is movable is set beforehand. A control unit (9) calculates the position and posture of the front attachment based on signals from angle sens...	11/10/1998
5233852	Mill actuator reference adaptation for speed changes A method providing a rolling mill with compensation for changes occurring in rolling parameters that result from changes occurring in mill speed. The rolling parameters are under control of actuators that are connected to receive control reference voltage...	08/10/1993
5203188	System and method for monitoring a rolling mill A system and method for monitoring a rolling mill which includes a data acquisition module that continually acquires, from mill instrumentation computers, time domain data relating to finished product gauge, entering product gauge, separating forces occur...	04/20/1993
5113678	Method for controlling plate material hot rolling equipment A plate-like rolled material fed from a continuous casting equipment is rolled by a vertical mill for width control. A pair of horizontal mills are disposed one on each of the entry side and the delivery side of the vertical mill. Both the horizontal mill...	05/19/1992
5101650	Tandem mill feed forward gage control with speed ratio error compensation A method for controlling metal strip thickness in a multi-stand rolling mill is provided which employs feed forward control to adjust the main drive armature current at the upstream mill stand when strip thickness data arrives at the downstream mill stand...	04/07/1992
5085065	Universal roll stand and method of operating same A workpiece is advanced through a succession of universal roll stands each having a pair of rotatably positively driven horizontal rolls engaging horizontal surfaces of the workpiece and a pair of idling vertical rolls engaging vertical surfaces of the wo...	02/04/1992
4706479	Tandem rolling control system A system for controlling interstand tension of a tandem rolling mill includes a detector for directly detecting a travelling speed of a work between two neighboring stands. A value of a speed of the work thus obtained is processed by a tandem rolling cont...	11/17/1987
4662202	Low tension cascade mill speed control by current measurement with temperature compensation A cascade speed control for tensionless production in a rolling mill by the measurement of stand motor current with temperature compensation. A low tension speed ratio between pairs of mill stands is calculated by successive incremental corrections. The c...	05/05/1987
4625536	Method of controlling unequal circumferential speed rolling A set-up method for unequal speed circumferential rolling. The setting values of the circumferential speeds of a higher speed roll and a lower speed roll and the roll position are obtained by using, as rolling parameters in a rolling schedule, the inlet a...	12/02/1986
4408470	Procedure and device for rolling metals without stress The invention involves a procedure having three key stages: In the first stage, just prior to the introduction of the metal into stand (n+1), the value of the rolling torque in stand (n) is determined and recorded. Then, in the second stage, when the meta...	10/11/1983
4380916	Rolling apparatus for sequential rolling A material is allowed to reciprocate along a conveyance line by conveyance systems. During reciprocation, the material is allowed to pass through different shape apertures provided by a rolling mechanism in the direction perpendicular to the conveyance li...	04/26/1983
4323971	Adjustment means for stretch reduction rolling mills An adjustment device is provided for regulating the total degree of drawing in a multi-stand stretch reduction rolling mill for the stretch reduction of tube having a digital unit which calculates intermittently the desired or theoretical stretchings (λ ...	04/06/1982
4307591	Rolling mill looper control system In a hot strip rolling mill a velocity damping compensator circuit is added to the current regulating loop of the looper motor drive generating a torque on the looper arm mechanism between roll stands, thereby to prevent disturbances when applying the loo...	12/29/1981
4232369	Method of controlling the deceleration of a reversing mill A method embodying this invention for controlling the deceleration of a reversing mill comprises a first step of defining a kickout distance in consideration of the bite speed at which a piece is caught by the main mill roll unit during every return roll ...	11/04/1980
4220026	Position control method and apparatus for controlling the position of the wire discharging port of a laying head A position control system for controlling the position of the wire discharging port of a laying head to discharge a wire in a coil fashion through its revolution, compares a position reference signal which is produced depending on the running speed of a w...	09/02/1980
4190887	Press roll piercing method A press roll piercing method wherein a polygonal billet is pushed in the axial direction thereof between a pair of driven rolling rolls mounted one above the other and a piercing plug is supported in the center of the pass by a mandrel, is improved by sel...	02/26/1980
4145902	Rolling mill A rolling mill capable of rolling a sheet metal into a final product under a low rolling pressure without the need of wrapping the sheet metal around a pair of work rolls. The pair of work rolls are rotated at different peripheral velocities, and the tens...	03/27/1979
4110824	Method and apparatus for continuously processing strand Method and apparatus for processing continuous strand material in a continuous processing line wherein movement of the strand is continued at a subsequent processing station despite halting movement of the strand at a preceding station and for providing a...	08/29/1978
4037087	Rolling mill control method and apparatus having operator update of presets Rolling mill computer control system includes an operator update program which accepts requests from a mill operator to modify computer setups for speed and screwdown presets. When under computer control and abnormal mill conditions arise, the computer pr...	07/19/1977

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Class 700/151 - Speed control