Abstract: A main spindle load monitoring device indicates a main spindle load in a machine tool that includes a tool with a plurality of edges on a main spindle and performs a process of a workpiece while the tool rotates with the main spindle. The main spindle load monitoring device includes a main spindle load detecting unit configured to detect a load on the main spindle, a main spindle load conversion unit, and a display control unit. The main spindle load conversion unit is configured to convert a time course of the main spindle load detected by the main spindle load detecting unit into a change of the main spindle load with respect to a main spindle rotation angle. The display control unit is configured to indicate a value of the main spindle load converted by the main spindle load conversion unit on a display screen in a polar coordinates system.

Abstract: A motor device configured to convey a fluid by driving a fan with a motor includes a position/speed acquirer configured to acquire a current rotation angle and a current rotation speed of the motor, a multiplier configured to calculate a flow-rate-constant target driving current by multiplying the rotation speed and a flow rate coefficient, and a current controller configured or programmed to control a motor driving current by setting, as a control target, the flow-rate-constant target driving current and to control a flow rate of the fluid to be maintained at a constant value which depends on the flow rate coefficient.

Abstract: A vehicle control system configured to stabilize a behavior of a vehicle during turning by correcting a driving force or a braking force. The vehicle control system comprises a lateral acceleration detecting means detecting longitudinal acceleration acting in an axle direction of the vehicle Ve (step S102); and a driving/braking force correcting means determining a changing amount Fctrl and a changing rate DFctrl of the correction based on the lateral acceleration Gy in case the running vehicle Ve is turned.

Abstract: A virtual reality encounter system includes motion sensors positioned on a human user. The motion sensors send motion signals corresponding to movements of the user as detected by the motion sensors relative to a reference point, the motion signals are transmitted over a communications network. The system also includes a humanoid robot, receiving, from the communications network, the motion signals to induce movement of the robot according to movement of the human user.

Abstract: Example methods and apparatus to adjust control loop timing in a process control system are disclosed. A disclosed example method includes receiving a first input signal generated via a first process control device within a process control system, determining within the process control system if the first input signal is received during a first scheduled time period of a control loop, and adjusting within the process control system a timing of a subsequent input signal received from the first process control device to cause the subsequent input signal to be received during a subsequent scheduled time period of the control loop, wherein the timing of the subsequent input signal is based on at least when the first input signal was received.

Abstract: A control device for the position control of a hydraulic cylinder unit has a controller which receives a set and an actual piston position and determines a preliminary manipulated variable based on the difference of the set and actual positions. A linearization unit multiplies the variable with a linearization factor and outputs it to the valve control unit so that the piston is adjusted at an adjustment speed. The linearization unit determines the factor dynamically as a function of the actual piston position and of working pressures that prevail at both piston sides. The linearization factor is determined such that a ratio of the adjustment speed to the difference of the set and actual positions is independent of the actual position and the working pressures. In the specific case where the controller is configured as a P controller, the order of the controller and the linearization unit can be reversed.

Abstract: A structure is provided in which a thrust feed forward structure for operating a structure to be driven without vibration and a control structure which simultaneously compensates for positional deviation caused by the thrust feed forward structure and positional deviation caused by a base displacement are included in a position controlling device (3). Alternatively, a structure is provided in which an acceleration and deceleration process for realizing response of the position of the structure to be driven and base displacement without vibration and a control structure which determines a feed forward amount with respect to a position instruction value after the acceleration and deceleration process are provided to the position controlling device.

Abstract: A coordinative control method for adjusting the back and knee bottom sections of an adjustable bed or the like, and a computer program for implementing the method, are provided. Specifically, a method for adjusting the back and knee bottom section is provided, in which the angular positions thereof are adjusted according to a preset action pattern. The initial starting positions of the adjustable sections are taken into account, and adjusted to a position corresponding to the closest point on a curve representing angular movement of the sections during the adjustment process. Then, the sections are adjusted in a manner that prevents exertion of uncomfortable pressure upon the torso of a user, and prevents sliding of a user relative to the foot of the bed.

Abstract: A bottom adjusting action control system for an adjustable bed is provided that facilitates adjustment of the adjustable bottom sections of the bed via a predetermined path of angular adjustment in reaching final set positions for the back and knee bottom sections. In particular, the control system of the present invention provides a means of adjusting the angular positions of adjustable bottom sections of the bed to predetermined final positions via preset bottom coordinative action patterns carried out by a controller means. The preset bottom coordinative action patterns raise and lower adjustable back and knee bottom sections of the bed in a coordinated manner, so as to adjust the bottom sections of the bed to the chosen angular positions without causing the user to slide relative to the bed, and without exerting uncomfortable abdominal pressure on the user.

Abstract: A control device for controlling a controlled system, such as steering, braking or accelerating when driving a car, as well other operations for other vehicles or systems, includes an automatic control system that generates automatically generated control signals, a haptic control command input device generates manual control command inputs, and an arbitration unit which resolves disputes between the automatically generated signals and the manual control command inputs. The haptic control generates control signals that depend on both the automatically generated control signals and the manual control command inputs, and adjustments are made continuously therebetween using rule based feed back control signals. Arbitration is performed in the dead spaced of the controlled system or the haptic control command input device.

Abstract: A difference between each position command data outputted in a form of a step signal from a high-level controller and its corresponding detected position data of a movable body is integrated by an integral compensator to position the movable body. Assuming, for example, that the movable body is a steerable mirror, digital filters are arranged to compensate the value of an initial state of an angular displacement and the value of an initial state of an angular velocity, respectively, and respective impulse responses of the digital filters as additional input elements are added to an output terminal of the integral compensator. For higher effectiveness, internal state variables of the digital filters can desirably be cleared to zero whenever an angle (position) command data is received.

Abstract: A method and system for a machine tool system are provided. The system includes a spindle, one or more sensor devices configured to determine a value of an operating parameter of the system, and a software application embedded within a control program of the machine tool system. The software application includes a process controller integration module configured to receive the determined operating parameter value from the sensor device, compare the operating parameter value to a predetermined allowable range, and generate one or more alerts using the comparison. The software application also includes a GUI interface module configured to display the alerts in at least one of a graphical and a textual form on a display of the machine tool system. The GUI interface module is further configured to communicate user inputs to the process controller integration module and receive information for user displays from the process controller integration module.

Abstract: A lithographic apparatus includes a movable part and a controller to control a position quantity of the movable part. The controller includes a first controller transfer function and a second controller transfer function. A selector selects the first controller transfer function or the second controller transfer function depending on a state of the movable part. The first controller transfer function may be chosen in a substantially stationary state of the movable part, while in a substantially non-stationary state of the movable part, the second controller transfer function may be chosen.

Abstract: A device for controlling movement of an object relative to an environment is disclosed. The device may include a ball configured to store data for determining at least an orientation of the object relative to the environment. The data may pertain to a plurality of possible orientations of the object. The device may also include a speed control unit configured to determine at least a speed of the object relative to the environment.

Abstract: A ball and socket joint for a motor vehicle is provided with a joint housing (2), with a ball pivot (3), which is mounted rotatably and pivotably in same and which is in contact with the joint housing (2) or with a ball shell (7) arranged between this and the ball pivot (5). The ball and socket joint has an angle measuring device (20, 21), by which the angle of the ball pivot (5) relative to the joint housing (2) can be detected. At least two temperature sensors (15, 16) are arranged at spaced locations from one another in or on the joint housing (2).

Abstract: A machine tool moves a driven member by use of a servomotor. A position control device controls the position of the driven member in accordance with full closed loop control. The position control device computes an integrated feedback value g in correspondence with a function F (VM, PM, Vm, Pm) in which four state amounts, motor speed VM, motor position PM, driven member speed Vm, and driven member position Pm are independent variables. The thrust instruction ?*, which is inputted to the servomotor, is compensated with the integrated feedback value g. The servomotor is thus optimally driven and controlled in accordance with full closed loop control.

Abstract: A device for controlling movement of an object relative to an environment is disclosed. The device may include a ball configured to store data for determining at least an orientation of the object relative to the environment. The data may pertain to a plurality of possible orientations of the object. The device may also include a speed control unit configured to determine at least a speed of the object relative to the environment.

Abstract: A method and a system for programming an industrial robot to move relative to defined positions on an object. The system includes a geometrical model of the object, the real object, and an industrial robot. A plurality of measuring points are generated corresponding to different points on the surface of the real object expressed in a coordinate system associated with the robot. The system further includes a calibration module arranged to determine orientation and position of the geometrical model of the object relative to the coordinate system associated with the robot, a calculating module arranged to calculate the deviation between the measuring points and corresponding points on the geometrical model, and an adjusting module arranged to adjust the defined positions based on the calculated deviations.

Abstract: The invention relates to a production machine with a hydraulic and/or electric drive and also measured data acquisition for at least one positional determination and at least two measured variables dependent on the latter in the production machine. If a further setpoint profile is exceeded, a setpoint input is corrected directly in the form of a substitutional open-loop or closed-loop control.

Abstract: A regression mirror reflects light from a light projector in a reflecting direction opposite an incident direction. A light receiver combined with the light projector in a unitary unit receives the reflected light from the regression mirror. A detecting unit including an optical sensing unit having the light projector, the light receiver and the reflecting member is disposed so that a wafer is disposed in a moving path along which an optical path of the optical sensing unit moves relative to the wafer. An information-acquiring unit acquires position information of the detecting unit relative to the wafer, an arithmetic unit calculates mapping information about an arrangement of the wafer based on the position information and light-reception information provided by the light receiver.

Abstract: A cooling fan including a fan module, a microcontroller, and a bus interface. The microcontroller is coupled to the fan module and is capable of adjusting a speed of the cooling fan based on a status of a second cooling fan and adjusting the speed of the cooling fan based on a temperature detected. The bus interface is in communication with the microcontroller, the second cooling fan, and the system to receive and output data.

Abstract: A motion control system and method are disclosed which provide improved pulse placement for smoother operation of a motion device such as a stepper motor. A placement of pulses may be determined for each of a plurality of time intervals such that the pulses are placed evenly across the plurality of time intervals, wherein the quantity of pulses in each of the time intervals is variable. The pulses may be generated and sent to the motion device to move the object to the desired position. A delay may be used to place each pulse at an arbitrary location within one of the time intervals. Where the desired step rate is fractional, time may be “borrowed” for one loop iteration from other loop iterations. In one embodiment, the step rate may be changed from one loop period to the next.

Abstract: A cooling fan including a fan module, a microcontroller, and a bus interface. The microcontroller is coupled to the fan module and is capable of adjusting a speed of the cooling fan based on a status of a second cooling fan and adjusting the speed of the cooling fan based on a temperature detected. The bus interface is in communication with the microcontroller, the second cooling fan, and the system to receive and output data.

Abstract: A precision positioning device comprises a hydraulic cylinder extending along the vertical direction and a piston member accommodated in the cylinder. The inside of the cylinder is divided into two chambers by a piston head of the piston member. A hydraulic circuit supplies a fluid at a constant pressure to one of the two chambers and supplies the fluid at a controlled flow rate to the other of the chambers via a servo valve. A control system performs position control with respect to the piston member by controlling the servo valve based on a detection signal from the position sensor, a position command value, a velocity command value, and an acceleration command value. The control system also performs force control with respect to the piston member by controlling the servo valve using detection signals from the first and second pressure sensors and a load command value.

Abstract: A cooling fan including a fan module, a microcontroller, and a bus interface. The microcontroller is coupled to the fan module and is capable of adjusting a speed of the cooling fan based on a status of a second cooling fan and adjusting the speed of the cooling fan based on a temperature detected. The bus interface is in communication with the microcontroller, the second cooling fan, and the system to receive and output data.

Abstract: A computer based method of controlling an industrial process, including the steps of measuring the values of at least one process variable (y1, y2), and predicting future deviations of one process variable (y1) with regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (uFB) based on said predictions, and by means of a first control law. The method comprises the further steps of measuring a measurable disturbance (d) in the process, predicting future deviations of said process variable (y1) with regard to said disturbance but without regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (ud) based on said predictions by means of a second control law.

Abstract: A numeric control device of a turning mechanism which turns a turning body from a driving source which circularly moves through a non-linear transmitting mechanism has a coordinate transformation device outputting a signal which converts an inputted turning angular signal into a position of the driving source, and a compensator outputting a signal which is derived from computing a positional error of the driving source in accordance with the turning angular signal, and the control of the driving source is carried out by a servo-input signal which is derived from the sum of a conversion signal outputted from the coordinate transformation device and a compensation signal outputted from the compensator. Since the numerical control mechanism of the present invention controls the driving source with addition of the compensation signal, it becomes possible to stabilize the turning velocity of the turning body with high accuracy.

Abstract: A cooling fan controlling apparatus for a computer including a power management portion for managing a power management system (PMS) mode of the computer, and a switching portion having n parallel-connected resistors and n switches serially connected to the resistors and turned on/off according to the power management system mode managed by the power management portion, and serially connected to a power source for driving a cooling fan, for controlling a voltage supplied to the cooling fan, where n is an integer greater than or equal to 2. Since voltages for driving a switching mode power supply cooling fan and a central processing unit cooling fan can be controlled by power save mode steps of a system, noises generated when the cooling fans rotate can be properly managed.

Abstract: A device for tracking the translational and rotational displacement of an object having two degrees of freedom using a single point of contact with the object. The device is particularly useful in a catheter simulation device for surgery and interventional radiology applications. A spherical contact member is mounted for free rotation about all axes in force-transmitting contact with the surface of the object and a pair of shafts are mounted in tangential engagement with the spherical member to reflect the displacement imparted to the object relative to a reference position. This arrangement provides simultaneous tracking of the combined translational and rotational displacement of the object. Measuring the displacement of the object and a haptic applicator are included such that a load may be applied to the object to precisely control the degree of force required to cause displacement of the object.