37results about How to "Simplifies tuning" patented technology

A method and algorithm for semi-active suspension damper control is described. The algorithm controls the damper setting to limit vehicle body movement in terms of body modal velocities of heave, roll and pitch. The main input, body movement, is measured with accelerometers. The control output comprises a request in percent of damper control range. Vehicle speed-dependent minimum and maximum limits are applied. The method includes monitoring vehicle speed and a modal sensing system. A common damping rate for the dampers is determined based upon parameters for speed, heave, pitch, and roll. Each damper is controlled based upon the common damping rate adjusted based upon a location of each of the controllable suspension dampers. The output comprises a single signal, translated to a front and rear setting. The purpose is to always have a balanced setting of the four dampers.

An antenna circuit tunable to a determined resonance frequency, includes an antenna coil and adjustable components. The antenna circuit includes a filter having at least one point to tap an electric voltage the amplitude of which forms a pertinent indication for the tuning of the antenna circuit. To tune the antenna circuit, the adjustable components of the antenna circuit are adjusted so that the electric voltage has a determined amplitude.

A method and algorithm for semi-active suspension damper control is described. The algorithm controls the damper setting to limit vehicle body movement in terms of body modal velocities of heave, roll and pitch. The main input, body movement, is measured with accelerometers. The control output comprises a request in percent of damper control range. Vehicle speed-dependent minimum and maximum limits are applied. The method includes monitoring vehicle speed and a modal sensing system. A common damping rate for the dampers is determined based upon parameters for speed, heave, pitch, and roll. Each damper is controlled based upon the common damping rate adjusted based upon a location of each of the controllable suspension dampers. The output comprises a single signal, translated to a front and rear setting. The purpose is to always have a balanced setting of the four dampers.

A driving circuit for driving a power semiconductor switch wherein at least one semiconductor device being provided which is implemented in such a way that it is operated in breakdown in response to the exceeding of a specific collector-emitter voltage of the power semiconductor switch, an output of the at least one semiconductor device being connected via a conductive interconnect to a terminal between the resistors of the resistor series circuit or to the resistor-series-circuit output which is connected to the signal processing unit, and the breakdown voltage of the at least one semiconductor device being selected in such a way that the potential at the output of the at least one semiconductor device is greater than the potential at the gate of the power semiconductor switch in its ON state. The invention further relates to a method for driving a power semiconductor switch.

An antenna circuit tunable to a determined resonance frequency, includes an antenna coil and adjustable components. The antenna circuit includes a filter having at least one point to tap an electric voltage the amplitude of which forms a pertinent indication for the tuning of the antenna circuit. To tune the antenna circuit, the adjustable components of the antenna circuit are adjusted so that the electric voltage has a determined amplitude.

A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.

A vertical geophone that includes a lower frequency spring, which forms part of the geophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the “spring supported by a spring” arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency springs. A contact spring is positioned between the lower frequency spring and the lower pole piece for forming part of the geophone electrical circuit. One surface of contact spring includes a plurality of wiper surfaces that ensure consistent sliding electrical contact against either the bottom surface of the lower pole piece or the upper surface of the lower frequency spring. The obverse surface of the contact spring is preferably spot welded to the other adjacent member.

Construction of a steering column support apparatus is achieved that simplifies tuning for stabilizing forward displacement of a steering wheel during a secondary collision, lowers and stabilizes the break away load, and when necessary, prevents the steering wheel from dropping excessively after a secondary collision. A locking cutout section 27 that extends in the forward / backward direction is formed in a bracket 11a on the vehicle side, top and bottom sliding plate sections 31a, 31b that are formed on outside and inside sliding plates 51, 52 of a sliding member 28 are located on both the top and bottom surfaces of the portions on both sides of the locking cutout section 27. A bolt that is inserted from the top through these sliding plate sections 31a, 31b and a nut 30 connect the top plate section 23 of a bracket 12b on the column side to the bracket 11a on the vehicle side. During a secondary collision, the outside sliding plate 51 slides and moves in the forward direction with respect to the inside sliding plate 52, and the bracket 12b on the column side breaks away from the bracket 11a on the vehicle side with little force.

Methods of forming a 3D structure in a substrate are disclosed. A layer of resist is deposited on the substrate. The layer of resist is patterned to define an edge at a predetermined location. The resist is reflowed to form a tapered region extending from the etch. Both the reflowed resist and the substrate are concurrently etched to transfer the tapered profile of the reflowed resist into the underlying substrate to form an angled surface. The etching is discontinued before all of the resist is consumed by the etching.

An adaptive network-based approach for reducing congestion on certain select-group of flows within a programmable network wherein switches dynamically adjust the receive window size (rwnd) and / or the ACK pace of other TCP flows by interfering their ACK packets, those flows sharing network resources causing congestion on the select-group of flows. The TCP flow rate is reduced to make more network resources available to the group of select-flows. The system of invention further comprises a centralized controller detecting so called a ‘bad queue’ causing persistent traffic slow-down due to TCP behavior. The bad queue detection is performed by (i) monitoring switch ports' transmit and receive queues, (ii) calculating minimum packet sojourn times on queues, (iii) determining which flows to slow down to clear detected bad queues, and (iv) sending messages to certain switches to execute changes to a group of ACK packets.

A method of state estimation is provided, including: (a) acquiring a plurality of positive sequence voltage and current phasor measurements; (b) designating a reference positive sequence voltage phasor measurement from the acquired phasor measurements; (c) correcting the acquired phasor measurements to account for the reference phasor measurement; (d) calculating complex power having a real component and an imaginary component, using the corrected positive sequence voltage and current phasor measurement; (e) using the real component of said complex power as a calculated mega-watt and the imaginary component of the complex power as a calculated mega-volt-ampere; and (f) using the mega-watt and mega volt-ampere calculations in a state estimation algorithm.

A seat supports an occupant of a vehicle and absorbs a force between the occupant and the vehicle created by relative movement between the occupant and the vehicle. The seat includes a seat back and a seat bottom frame supporting the seat back and extending from the seat back along an axis. A seat pan is moveably coupled to the seat bottom frame and an energy absorbing device is coupled to the seat bottom frame and the seat pan. The energy absorbing device is configured to absorb at least a portion of the force between the occupant and the vehicle when the seat pan moves relative to the seat bottom frame. A link is pivotably coupled to the seat pan and to the seat bottom frame and guides movement of the seat pan relative to the seat bottom frame away from the seat back along the axis when the seat pan moves relative to the seat bottom frame.

A probe head for nuclear magnetic resonance measurements comprises a sample holder having a stator and a rotor. The rotor is journalled for rotation about an axis of rotation within the stator. It is adapted for receiving a sample substance. The axis of rotation is inclined by an angle with respect to a longitudinal axis of the probe head. The stator is configured as a dielectric resonator.

The invention relates to a vibration isolation module (101) for a lithographic apparatus or an inspection apparatus. The module comprises a support frame (102), an intermediate body (103) and a support body (104) for accommodating the lithographic apparatus. The intermediate body is connected to the support frame by means of at least one spring element such that the intermediate body is a hanging body. The support body is connected to the intermediate body by means of at least one pendulum rod (108) such that the support body is a hanging body. The invention further relates to a substrate processing system comprising such vibration isolation module.

A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.

Real-time control of a prosthetic device using EMG-based locomotion state classification computes a histogram [208] of a time-frequency spectrogram [206] of the EMG data [200] sampled from muscles, classifies the histogram using if-else rules [212] as representing a locomotion steady state [216] or locomotion transition state [214] in the prosthetic device, and controls the prosthetic device using the computed transitions between locomotion modes. The classification may be based on a comparison of feature values [210] derived from the histogram and stored feature values derived from histograms of known locomotion states. Alternatively, the classification may be based on matching scores calculated from the histogram and stored histograms of known locomotion states. The classifying preferably is performed using hierarchical if-else fuzzy classification rules [212], and may further include using a prior locomotion state and a state diagram specifying constraints on locomotion states accessible from other locomotion states.

A method of state estimation is provided, including: (a) acquiring a plurality of positive sequence voltage and current phasor measurements; (b) designating a reference positive sequence voltage phasor measurement from the acquired phasor measurements; (c) correcting the acquired phasor measurements to account for the reference phasor measurement; (d) calculating complex power having a real component and an imaginary component, using the corrected positive sequence voltage and current phasor measurement; (e) using the real component of said complex power as a calculated mega-watt and the imaginary component of the complex power as a calculated mega-volt-ampere; and (f) using the mega-watt and mega volt-ampere calculations in a state estimation algorithm.

A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.

Methods of forming a 3D structure in a substrate are disclosed. A layer of resist is deposited on the substrate. The layer of resist is patterned to define an edge at a predetermined location. The resist is reflowed to form a tapered region extending from the etch. Both the reflowed resist and the substrate are concurrently etched to transfer the tapered profile of the reflowed resist into the underlying substrate to form an angled surface. The etching is discontinued before all of the resist is consumed by the etching.

A probe head for nuclear magnetic resonance measurements comprises a sample holder having a stator and a rotor. The rotor is journalled for rotation about an axis of rotation within the stator. It is adapted for receiving a sample substance. The axis of rotation is inclined by an angle with respect to a longitudinal axis of the probe head. The stator is configured as a dielectric resonator.

A control circuitry can be configured to receive an error signal indicating a difference between an output voltage of the power supply and a desired setpoint for the output voltage. According to one configuration, depending on the error signal, the control circuitry initiates switching between operating the control circuitry in a pulse width modulation mode and operating the control circuitry in a pulse frequency modulation mode to produce an output voltage. Operation of the control circuitry in the pulse frequency modulation mode during a transient condition, such as when a dynamic load instantaneously requires a different amount of current, enables the power supply to satisfy current consumption by the dynamic load. Subsequent to the transient condition, the control circuitry switches back to operation in the pulse width modulation mode.

A band stop filter comprises a transmission line with center and outer conductors, and coaxial resonators. The outer conductor forming a unitary conductive housing with an inner space divided by conductive partition walls into resonator cavities. Each of the resonator cavities contains at least one of the coaxial resonators, wherein each of the coaxial resonators separately has an electromagnetic coupling to the transmission line. The coupling arranged by a coupling element to form an attenuation peak in the a response curve of the filter, where the natural frequencies of the coaxial resonators differ from each other to shape the response curve of the filter. The transmission conductor is located inside the housing, running through openings in the partition walls across all the resonator cavities. The housing is the outer conductor of the transmission line, and a portion of the transmission conductor in a resonator cavity is the coupling element.

A driving circuit for driving a power semiconductor switch wherein at least one semiconductor device being provided which is implemented in such a way that it is operated in breakdown in response to the exceeding of a specific collector-emitter voltage of the power semiconductor switch, an output of the at least one semiconductor device being connected via a conductive interconnect to a terminal between the resistors of the resistor series circuit or to the resistor-series-circuit output which is connected to the signal processing unit, and the breakdown voltage of the at least one semiconductor device being selected in such a way that the potential at the output of the at least one semiconductor device is greater than the potential at the gate of the power semiconductor switch in its ON state. The invention further relates to a method for driving a power semiconductor switch.

The invention relates to a bending device (2) for bending a rod-like or tubular workpiece (4), comprising a bending machine (6), which has a bending head (8), which is designed for bending the workpiece (4) in a forming process, and a control means (24), which controls the operation of the bending machine (6), a robot (10), which comprises a multi-joint arm (11) which can be adjusted by motors, having a gripper end (12), which is designed for gripping and holding the workpiece (4), and a control unit (22), which is designed to control the operation of the robot (10), wherein the control means (24) is designed to control the bending machine (6) and the robot (10) during the bending process. The control unit (22) of the robot (10) is switched, at least during the bending process, to a slave mode in which it receives control commands from the control means (24) of the bending machine (6), and the control means (24) of the bending machine (6), during the bending process, continuously issues setting specifications for the motor-adjustable multi-joint arm (11) and the gripper end (12) to the control unit (22) of the robot (10) which has been switched to slave mode and thereby controls the robot (10) to introduce the workpiece (4) into the bending head (8), to stabilize the workpiece during the forming process and to remove the workpiece from the bending head (8) after the forming process.

An accelerator pedal assembly including an accelerator pedal attached to the driver's compartment of a vehicle is disclosed. The accelerator is reversibly movable between the neutral or idling position when no pressure is applied to the pedal and an acceleration position when pressure is applied. The assembly includes a compression assembly having a compression chamber with a piston, liquid nanofoam in the chamber, and a geared driver assembly connecting the compression assembly and the pedal. When the pedal is depressed, the driver assembly is activated, forcing the piston into the chamber and causing the force level to rise until it reaches the designed load limit or the threshold. When the pressure on the pedal is relieved, the position of the pedal is immediately reset to the neutral position as the piston is pushed out of the chamber by internal pressure generated by liquid escaping the nanoporous material via the nanopores.

A method for size selection of nanostructures comprising utilizing a gas-expanded liquids (GEL) and controlled pressure to precipitate desired size populations of nanostructures, e.g., monodisperse. The GEL can comprise CO2 antisolvent and an organic solvent. The method can be carried out in an apparatus comprising a first open vessel configured to allow movement of a liquid / particle solution to specific desired locations within the vessel, a second pressure vessel, a location controller for controlling location of the particles and solution within the first vessel, a inlet for addition of antisolvent to the first vessel, and a device for measuring the amount of antisolvent added. Also disclosed is a method for forming nanoparticle thin films comprising utilizing a GEL containing a substrate, pressurizing the solution to precipitate and deposit nanoparticles onto the substrate, removing the solvent thereby leaving a thin nanoparticle film, removing the solvent and antisolvent, and drying the film.

A geophone in which a coil bobbin assembly ideally includes a provision for receiving a third coil winding between the upper and lower coils. A third mass-tuning coil is wound around the bobbin whose purpose is to adjust the overall mass of the bobbin assembly with greater accuracy and precision than can be achieved by machining techniques alone. Mass is adjusted by adding or subtracting one or more turns of wire in the tuning coil. The tuning coil is preferably electrically shorted for increasing geophone damping.

A vertical geophone that includes a lower frequency spring, which forms part of the geophone electrical circuit, that is positioned directly on the lower end cap This arrangement eliminates the “spring supported by a spring” arrangement of prior art geophones to minimize geophone distortion and simplify tuning of the frequency springs. A contact spring is positioned between the lower frequency spring and the lower pole piece for forming part of the geophone electrical circuit. One surface of contact spring includes a plurality of wiper surfaces that ensure consistent sliding electrical contact against either the bottom surface of the lower pole piece or the upper surface of the lower frequency spring. The obverse surface of the contact spring is preferably spot welded to the other adjacent member.