1143results about How to "Simple control system" patented technology

One aspect of the invention relates an exhaust treatment system having an SCR reactor following a NOx adsorber. Syn gas is used to regenerate the NOx adsorber. Another aspect relates to an LNT / SCR provided with an ammonia source separate from the LNT. A further aspect relates to a system comprising first and second LNTs and one or more SCRs downstream of the LNTs. A still further aspect relates to a device comprising first and second NOx adsorbers contained in a single housing. Another aspect relates to coating a surface of a moving part in an exhaust system with an oxidation catalyst to mitigate fouling. Additional aspects of the invention relate to strategies for controlling one or more of the time to initiate a regeneration cycle, the time to terminate a regeneration cycle, and the reductant injection rate during regeneration of LNT / SCR exhaust treatment systems.

Power supply systems and methods are provided. In one aspect, a power supply system includes a frame, a power input to receive input power from a power source, a power output to provide output power to a load, at least one battery module mounted in the frame and having a battery output that provides battery power, at least one power module mounted in the frame and coupled to the power input to receive the input power, coupled to the battery output to receive the battery power, and coupled to the power output to provide the output power from at least one of the battery power and the input power, a first controller coupled to the at least one power module, and a second controller, substantially similar to the first controller, coupled to the first controller, and coupled to the at least one power module, wherein each of the first controller and the second controller are configured to determine operational parameters of the power supply system and store a first set of parameters determined by the first controller and a second set of parameters determined by the second controller.

A fuzzy logic information processing system and method are disclosed that may be used not only with known or definite data input but also with uncertain data input. The uncertain data input may be represented by a set of values wherein the possibility of any particular or specific value within the set being the true or accurate value is uncertain. The preferred embodiment of the system provides for an extensor to extend or map a representation of the uncertain data into at least one additional dimension related to dimensions of a set of rules used for making fuzzy logic inferences. The set of rules may be provided effectively in a mapped or graphed form. The set of rules and uncertain data are combined, for instance by locating intersection regions, to produce an output set that may be also be described as a map or plot. In a presently preferred embodiment the uncertain inputs and rules are represented mathematically or symbolically and then operated on to produce an output set. A projector then projects the output set to the desired output dimension as an output for the system. The system output may then be used for control purposes such as, for example only, a combat control system to provide a tactical picture, decision aid, presets for a guidance system, or the like.

An optical unit with shake correcting function may include a movable module on which at least an optical element is mounted, a fixed body which supports the movable module, a shake detection sensor which detects a shake of the movable module, a drive mechanism for shake correction for swinging the movable module on the fixed body on the basis of a detection result of the shake detection sensor to correct the shake of the movable module, and a control section which controls the drive mechanism for shake correction on the basis of the detection result of the shake detection sensor. The shake detection sensor is a gyroscope mounted on the movable module and the control section controls the drive mechanism for shake correction so as to cancel the shake detected by the gyroscope.

A fluid treatment system includes at least one flow-through tank, a treatment device configured for treating at least one of an untreated fluid and a treated fluid and providing the treated fluid to the at least one flow-through tank and at least one sensing device configured for sensing the quality of fluid in the at least one flow-through tank. The sensing device is connected to the treatment device for providing the treated fluid to the at least one flow-through tank upon a determination of a quality of fluids in the at least one flow-through tank being less than or equal to a predetermined fluid quality threshold.

A control system to control an operating room lamp to generate light to illuminate a surgical site includes an image signal input to receive an image signal from a video camera to capture an image of a surgical site and a control signal output to emit to the operating room lamp a control signal to control at least either a direction or an intensity or a spectral characteristic of the light or a size or shape of the area illuminated by the light. The control system is configured to recognize a hand area of medical personnel and to generate the control signal depending on the image signal and to emit it to the control signal output.

The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC storage device is connected to the common DC bus through a power regulator designed to maintain a constant voltage on the DC bus. Further, an inverter may be provided to convert the DC voltage to an AC voltage for a customer load or for connection to the utility grid. Each power conversion device is independently controlled to provide a modular and simplified power control system.

Active material actuator assemblies are provided that enable simplified control systems and faster actuator cycle times. A movable member is provided that has multiple active material components operatively connected to it. The active material components are separately selectively activatable for moving the movable member. Movement of the movable member via activation of a first of the active material components triggers activation of the second active material component to further move the movable member. Alternatively or in addition, previously activated active material components are protected from undesired stretching during activation of another active material component or, when desired, an active material component may be reset via activation of another of the active material components in order to prepare it for subsequent activation.

A control system for a power assisted door, the electronic door control system includes an intelligent control, a plurality of sensor inputs operatively connected to the intelligent control, the plurality of sensor inputs associated with state of a plurality of mechanical components of the power assisted door, and a power drive operatively connected to the intelligent control for providing opening and closing of the power assisted door. The intelligent control is configured to monitor status of the plurality of sensor inputs and control the power drive at least partially based on the status of the plurality of sensor inputs. The intelligent control may be adapted to determine when state of the plurality of sensor inputs is indicative of one or more conditions which would preclude safe door movement. A power distribution module may also be present to assist in limiting current draw and to allow for charging.

The invention relates to an automatic field-weakening method for a built-in permanent magnet synchronous motor, which solves the problem that field-weakening speed is difficult to widen due to the fixed rotor excitation and small reactance of armature reaction of a direct axis in the conventional permanent magnet synchronous motor in the market. In a rotor magnetic structure of the permanent magnet synchronous motor, a magnetic flux short-circuit block is arranged in a magnetic flux isolating layer in a quadrature axis direction with the help of an automatic adjustment action of a spring; when the rotary speed of the rotor is low, the short-circuit block is positioned at a low-speed position so that interelectrode magnet leakage through the isolating layer is small; when the rotary speed of the rotor is increased, the short-circuit block gradually deviates from the low-speed position to move towards the edge of the rotor under the action of rotating centrifugal force, which expands the interelectrode magnet leakage path; and the leakage magnet flux passing through the isolating layer is increased and the main magnet flux is reduced so that the aim of automatic filed-weakening widening speed is fulfilled in the motor body and a larger speed-adjusting range is reached. The method can be applied to the permanent magnet motors which have uncertain pole numbers and tangential or radial magnet structures.

A wearable lower-limb assistance exoskeleton comprises a left-side leg (A), a right-side leg (C) and an object carrier (B). A left first connecting rod (A1) is matched with an inserting rod (B1) to fixedly connecting the left-side leg (A) with the object carrier (B), and a right first connecting rod (C1) is matched with the inserting rod (B1) to fixedly connecting the right-side leg (C) with the object carrier (B). Lower limbs on two sides totally have two rotating degrees of freedom, and the lower limb on each side has one degree of freedom, so that hip joints, knee joints and ankle joints can rotate around the frontal axis. A left motor (A20) and a right motor (C20) are controlled by a bionic intelligent control program to realize walking gaits of the wearable lower-limb assistance exoskeleton. By the wearable lower-limb assistance exoskeleton, physical ability consumption of a person can be effectively reduced. The wearable lower-limb assistance exoskeleton is used for lower-limb assistance, can be used for soldier fighting equipment for military use and can also be used in the field of lower-limb rehabilitation.

A combined washer dryer is provided. The combined washer dryer comprises an outer drum; a rotatable cylindrical variable size inner drum arranged coaxially within the outer drum and movable from a first position to a second position; a water handling system adapted to intake water into the inner drum and to remove water from the outer drum; an air handling system adapted to intake air into the inner drum and to remove air from the outer drum; and a control system adapted to control the movement of the variable size inner drum.

There is provided a control system which controls a link structure constructed by connecting a plurality of rigid body links and driven by making a joint actuator generate an actuator force. The control system includes a mechanical model including geometric parameters and dynamical parameters of the link structure, a virtual external force calculating means for calculating a virtual force acting on the mechanical model of the link structure, a contact part detecting means for detecting contact parts between the link structure and the outside, and an actual force converting means for converting the virtual force calculated by the virtual external force calculating means into an external force capable of existing actually and the actuator force of the joint actuator, using contact information detected by the contact part detecting means. The joint actuator is made to generate the actuator force output by the actual force converting means.

A wave energy converter (WEC) system includes first and second bodies which can move relative to each other in response to waves and a power-take-off (PTO) device coupled between the two bodies to convert their relative motion into energy. A sensor is used to sense selected characteristics of an incoming wave and produce signals which are applied to a control computer for predicting the impact of the incoming waves on the WEC. Simultaneously, signals indicative of the actual conditions (e.g. the velocity) of the WEC are also supplied to the control computer which is programmed to process the predicted and actual information in order to generate appropriate signals (forces) to the components of the WEC such that the average wave power captured by the PTO is maximized.

A device and method are disclosed for forming air filled cushions. The device includes a drive mechanism to move inflatable tubing through the apparatus, and an injector, optionally including an outlet, located continuously within, or within a portion of, the tubing. This arrangement can permit the formation of air filled cushions in a continuous stream. Also disclosed is a roll of plastic tubing that is sealed transversely at a succession of intervals, with each pair of seals stopping just short of a longitudinal center line of the tubing. Such tubing might be used in conjunction with the apparatus, the central gap between the seals allowing passage of the injector.

The invention discloses a reservoir culvert detection robot. A special pipeline robot aiming at the reservoir culvert detection work is not designed in the prior art. The reservoir culvert detection robot comprises a driving wheel group, a steering system, a connecting mechanism, a driven wheel group and a control system, wherein the driving wheel group and the driven wheel group are connected through the connecting mechanism, the steering system controls the steering of the driving wheel group, the driving wheel group comprises wheel leg mechanisms and a transfer system, the three wheel leg mechanisms are uniformly distributed and arranged on the side wall of a first main installing plate, the transfer system is arranged in the center part of the first main installing plate, and drives the three wheel leg mechanisms, and the steering system comprises a rope, a steering rope roller, a steering motor, a steering reset spring, an initial position stop pin, a pull arm and a terminal position stop pin. The reservoir culvert detection robot is suitable for the work environment of a reservoir culvert, and can do autoroatation around the pipeline center in situ in the pipeline for avoiding obstacles; two rows of wheel groups including the front row and the back row and a telescopic diameter change mechanism are adopted, the telescopic quantity of each wheel leg is respectively independent, and the pipeline diameter change adapting capability is high.

The present invention provides a simplified method of controlling power among the various sources and loads in a power system. Power generating sources are each connected to a common DC bus through a converter designed to optimize power flow to the DC bus. A DC storage device is connected to the common DC bus through a power regulator designed to maintain a constant voltage on the DC bus. Further, an inverter may be provided to convert the DC voltage to an AC voltage for a customer load or for connection to the utility grid. Each power conversion device is independently controlled to provide a modular and simplified power control system.

The invention provides a fuel cell and lithium ion battery hybrid system, which comprises a fuel cell subsystem, a lithium ion battery subsystem, a charge control subsystem, an intelligent hybrid power management system, a motor and a motor control system. A fuel cell serves as a main operation power source while a lithium ion battery serves as an auxiliary power source. The problems that the fuel cell of the pure fuel cell automobile is short in service life and the energy is unrecyclable can be solved, and the problems of long charge time, potential burning and explosion in continuous high-current discharge, attenuation and self discharge of the pure lithium ion battery electric vehicle are also solved. Service lives of the fuel cell and the lithium ion battery are effectively prolonged, the cost of the power system is reduced, reliability and safety are improved, energy recovery is realized, and accordingly the fuel cell and lithium ion battery hybrid system is an excellent solution to the power source problem of electric vehicles.

One aspect of the invention relates an exhaust treatment system having an SCR reactor following a NOx adsorber. Syn gas is used to regenerate the NOx adsorber. Another aspect relates to an LNT / SCR provided with an ammonia source separate from the LNT. A further aspect relates to a system comprising first and second LNTs and one or more SCRs downstream of the LNTs. A still further aspect relates to a device comprising first and second NOx adsorbers contained in a single housing. Another aspect relates to coating a surface of a moving part in an exhaust system with an oxidation catalyst to mitigate fouling. Additional aspects of the invention relate to strategies for controlling one or more of the time to initiate a regeneration cycle, the time to terminate a regeneration cycle, and the reductant injection rate during regeneration of LNT / SCR exhaust treatment systems.

A premixer for a combustor system has a venturi-type mixing tube with a flow axis, an inlet adjacent one axial mixing tube end, and a nozzle assembly at the opposite axial mixing tube end. The mixing tube inlet is flow connected to a source of compressed air and a source of fuel, and the mixing tube is connected to combustion chamber, an annular or can-type liner and an inlet, and the nozzle assembly extends into the combustion chamber and has at least one port for distributing the fuel / air mixture within a single stage combustion zone. In a preferred configuration, a pair of premixers are located at diametrically opposed positions on an annular combustion chamber, and the venturi axes are both radially disposed and axially inclined with respect to the combustion chamber axis. A single, centrally located, cylindrical air valve controls compressed air flow to both premixers through a manifold and distribution conduits.

A basic unit of lithium-ion battery, including: at least two series-connected lithium-ion cells; at least one lithium-ion cell for balance; controllable switches with the same number as the lithium-ion cells; a drive module for the controllable switches; a voltage detection module for detecting a voltage at two ends of the lithium-ion cells; and a controller. The lithium-ion cell for balance is connected in parallel to the lithium-ion cells. The controllable switches control the turn on / off of the connection in parallel between the lithium-ion cell for balance and each of the lithium-ion cells independently. The drive module for the controllable switches and the voltage detection module are connected to the controller. A battery pack including the basic unit of lithium-ion battery and a method for real-time charge / discharge equalizing of the basic unit of lithium-ion battery are also provided.

The invention discloses a microgrid inverter multi-loop control method based on a virtual synchronous generator, and the method comprises power control of an outer loop and voltage current control of an inner loop. The power control of the outer loop comprises the following steps: measuring the three-phase voltage and current of an output side of an inverter, calculating active power and reactive power according to the instantaneous power theory, carrying out calculation and regulation through an active power-frequency equation, a reactive frequency equation, a torque inertia equation and an electromagnetic transient equation of a synchronous motor, obtaining the amplitude of an output voltage and a phase angle given value, and then carrying out modulation through voltage and current double loops. The method can achieve the non-corresponding control of voltage size and frequency well, outputs active and reactive power, can achieve precise manual control, and has the characteristics of V / F and PQ control. When a fault happens to a power grid, the method can simulate the primary modulation, primary voltage regulation and inertia characteristics of the synchronous generator, participates in the power grid adjustment, provides frequency and voltage support, and facilitates the stabilization of the power grid.

A balance practicing machine that offers simplified control, reduced cost, and a compact drive assembly that reduces the space requirement for the machine. The machine includes an output shaft from one side of a power source to impart three movements to the seat in the form of a repetitive linear motion in the longitudinal direction, a repetitive pivoting motion around a longitudinal shaft, and a repetitive pivoting motion around transverse shafts. A seat base is connected to an active frame, through connector links, so as to provide swinging movement of the seat base around transverse shafts. The active frame is connected to a base member so as to allow the repetitive pivoting movement of the active frame around a longitudinal shaft.

A behavior control system for a robot apparatus that operates autonomously. The behavior control system includes a plurality of behavior description sections for describing motions of the robot and an external environment recognition section. The system also includes an internal state management section for managing an internal state of the robot in response to the recognized external environment and / or a result of execution of a behavior, and for managing emotions. A behavior evaluation section evaluates execution of behaviors in response to the external environment and / or the internal state.

The invention relates to a modality switching underwater robot and a control method thereof. The modality switching underwater robot comprises a water surface control system and an underwater control system, wherein the underwater control system comprises an underwater sensing device, an underwater controller and an underwater robot, and the underwater robot comprises a carrier module, a switching module, a trolley module and a video collecting module. According to the control method of the modality switching underwater robot, the underwater controller is adopted to enable video information collected by the video collecting module and sensing information sensed by the underwater sensing device to be uploaded to the water surface control system through umbilical cables and receive control signals sent out by the water surface control system at the same time so as to achieve control over the swimming movement and wall climbing cleaning of the underwater robot. According to the modality switching underwater robot and the control method of the modality switching underwater robot, the self-weight, the size, the manufacturing cost, the processing difficulty, the energy consumption of a power supply system and the like are reduced to the maximum degree, and the modality switching underwater robot has various functions of swimming, sorption, crawling, cleaning and underwater monitoring and is high in practicability and wide in application range.

The present invention provides a control system for a modular high repetition rate two discharge chamber ultraviolet gas discharge laser. In preferred embodiments, the laser is a production line machine with a master oscillator producing a very narrow band seed beam which is amplified in the second discharge chamber.Novel control features specially adapted for a two-chamber gas discharge laser system include: (1) pulse energy controls, with nanosecond timing precision (2) precision pulse to pulse wavelength controls with high speed and extreme speed wavelength tuning (3) fast response gas temperature control and (4) F2 injection controls with novel learning algorithm.

The invention provides an intelligent railcar and laneway vehicle interface structure applied in the close rack stack, comprising an intelligent railcar and laneway vehicle interface, an intelligent railcar runs between the upper railway and the lower railway, a laneway vehicle interface is arranged on at the tail end of a close rack bookshelf, the intelligent railcar is in the frame construction, an intelligent railcar walking driving mechanism is arranged at the bottom terminal of the frame, the intelligent railcar is formed in the way that the prior structure of six groups of book taking and returning manipulators is improved to the structure with a laneway vehicle storing cabin and a rotatable unidirectional book taking and returning manipulator, correspondingly, the laneway vehicle interface structure is changed into an elevating translational carrier structure corresponding to the laneway vehicle storing cabin structure, which is matched with the interface book pushing mechanism to realize the book inlet and outlet action, the improvement of the invention makes the whole manipulator more flexible, the improved rear laneway vehicle storing cabin structure makes the books transferred in batch to improve the efficiency of the device, moreover, the improved intelligent railcar controlled system is simpler, has lower cost and is suitable for the establish of the large-sized electronic library.

A compressor system includes a pair of compressors located in a common shell. A common drive shaft drives both compressors and the drive shaft is powered by a single motor. One or both of the compressors can be equipped with a pulse width modulated capacity control system and a vapor injection system. When one compressor is equipped with these systems, the capacity can be varied between 50% and 110%. When both compressors are equipped with these systems, the capacity can be varied between 0% and 120%.

The invention provides a wheel-foot conversion type mobile robot system, relating to mobile robots. The wheel-foot conversion type mobile robot system is used for solving the problems that the obstacle avoidance ability of the existing wheeled robots is poor and the walking speed of the existing footed robots is low. According to the wheel-foot conversion type mobile robot system, one end of each central axle is fixedly connected and is axially locked through a corresponding first limiting block, a shoulder is arranged at the other end of each central axle, a spring sleeves each central axle and is located between a corresponding bearing and the corresponding shoulder, a central blind hole is formed in the other end of each central axle, and a first key groove is formed in each central blind hole; semi-annular grooves are formed in fixed half wheels along the circumferential direction, movable half wheels and the fixed half wheels are in turning connection relatively to the central axles, complete wheels are formed by the fixed half wheels and the movable half wheels during the conversion to a wheeled state, the movable half wheels are turned into the semi-annular grooves of the fixed half wheels during the conversion to a footed state, and single scrolls are mounted on the central axles. The wheel-foot conversion type mobile robot system belongs to the field of the mobile robots.

A control device for an engine, which includes a plurality of cylinders, an electronically controlled unit injector for injecting fuel into each cylinder, and an electronically controlled valve train for opening and closing an intake valve and an exhaust valve of each cylinder, comprises operating state detection means for detecting the operating state of the engine, and electronic control units for performing an idle cut operation, in which fuel injection into some of the cylinders is stopped, and the intake valve and the exhaust valve of the cylinder concerned are kept closed, if the signal switching time is long when the idling of the engine of a vehicle waiting at traffic lights is detected by the operating state detection means.