30results about How to "Simple controller" patented technology

A touch sensing method and a touch sensing device are described for sensing a location of a touch. When the touch sensing device is touched, a first conductive layer disposed on a supporting layer is deflected toward a second conductive layer. The touch location is determined by sensing the change in capacitance at the location of the touch. A change in capacitance at the touch location is sensed by driving one of the conductive layers with an electrical signal referenced to the other conductive layer and measuring the current flow between the conductive layers. The sensed change in capacitance is greater than a change in the external capacitance of the touch sensor.

A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing / deleting allowed / not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.

An elevator system uses a supercapacitor to store electric energy. Furthermore, the supercapacitor can be used as a source of reserve power in emergency situations, such as power failures. The supercapacitor is connected together with three switching branches to a rectified signal of the power supply of the motor. By closing and opening the switches, the supercapacitor can be charged when the motor load is small. When the motor load is large or when the power supply fails, the electric energy contained in the supercapacitor can be discharged for use by the motor. In an emergency, the motor drives the elevator at a speed lower than normal, and therefore a supply voltage lower than normal is sufficient. Also, energy obtained from braking of the elevator can be stored in the supercapacitor, which has a storage capacity of considerable magnitude as compared to an ordinary capacitor. By applying the invention, the energy consumption of the elevator can be reduced because the waste energy obtained from the power supply can be stored and utilized when more energy is needed.

A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing / deleting allowed / not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.

A USB storage device having the function of preventing stored software from being deleted by mistake achieved with as simple a structure as possible. In the USB storage device, the storage area is divided into an area in which execution of reading, writing and deleting is allowed and an area in which only execution of reading is allowed. Information to make a USB mass storage class driver recognize these areas as areas corresponding, respectively, to logical unit numbers defined in the SCSI command set of the USB mass storage class driver owned by the host is stored in the USB storage device. The information includes logical unit numbers, formats, writing / deleting allowed / not allowed flag, logical block numbers and physical block numbers. By this, the USB mass storage class driver recognizes the USB storage device as a SCSI device having two logical units.

The disclosure relates to a device comprising at least one delay line for applying a variable delay to a clock signal and a controller for controlling the variable delay of the delay line. Each delay line comprises a plurality of concatenated delay banks which provide different delay values with respect to each other, a bypass parallel over each of said the delay banks, and switching elements associated with each of the delay banks for selecting either the respective delay bank or the respective bypass. Each of the delay banks is provided with a delay bank status indicator for indicating propagation of the clock signal through the delay bank towards the controller. The controller is provided for taking the indicated propagation of the clock signal into account upon setting said switching elements. Devices according to this disclosure are, amongst other uses, suited for use in Ultra Wide Band (UWB) receiving or transmitting devices, in particular those devices, designed for low power consumption, by enabling power on and off switching of parts of such devices as analog to digital converters and integrators, during timing windows.

A DC / AC converter includes a resonant circuit having a first capacitor connected to at least one of a primary winding and a secondary winding of a transformer and an output end connected to a load, the resonant circuit receiving an alternating signal having a predetermined frequency and amplitude to pass a current, a variable impedance element connected in parallel with a part of the output end of the resonant circuit, the variable impedance element changing the impedance value thereof according to a current passing through the load, and a controller to control the current passing through the load to a predetermined value by changing the resonant frequency of the resonant circuit according to the changed impedance value of the variable impedance element.

The invention proposes a power grid simulator having accurate harmonic voltage and virtual impedance control. The power grid simulator comprises a reactor, a rectification unit, a main inversion unit and an auxiliary inversion unit, wherein the rectification unit comprises a three-phase PWM rectifier and a PWM rectification controller, the main inversion unit comprises a main inverter and a main inversion controller, the auxiliary inversion unit comprises an auxiliary inverter and an auxiliary inversion controller, an input end of the three-phase PWM rectifier is accessed to a power grid through the reactor, an output end of the three-phase PWM rectifier is connected with the main inverter and the auxiliary inverter respectively, and an output end of the auxiliary inverter is connected with an output end of the main inverter. Compared with the prior art, the power grid simulator having accurate harmonic voltage and virtual impedance control, provided by the invention, has the advantages that a standard power grid output voltage, a power grid voltage fault working condition and a power grid harmonic component can be simulated, the power grid impedance change can also be simulated, and the demand of distributed power generation test research can be met very well.

The present invention describes a method and an apparatus for storing electric energy needed in an elevator system into a supercapacitor. Furthermore, the invention can be used as a source of reserve power in emergency situations, such as power failures. The supercapacitor is connected together with three switching branches to a rectified signal of the power supply of the motor. By closing and opening the switches, the supercapacitor can be charged when the motor load is small. When the motor load is large or when the power supply fails, the electric energy contained in the supercapacitor can be discharged for use by the motor. In an emergency, the motor drives the elevator at a speed lower than normal, and therefore a supply voltage lower than normal is sufficient. Also, energy obtained from braking of the elevator can be stored in the supercapacitor, which has a storage capacity of considerable magnitude as compared to an ordinary capacitor. By applying the invention, the energy consumption of the elevator can be reduced because the waste energy obtained from the power supply can be stored and utilized when more energy is needed.

The invention relates to a fractional order hyper chaotic system and a projection synchronization method thereof. By introducing a feedback function, a fractional order four-dimensional hyper chaotic system is provided, the system is provided with one balance point only and has a complex dynamical behavior, and a two-wing type is shown by a chaotic attractor of the system. Through nonlinear feedback control, a nonlinear chaotic synchronous error system is changed into a linear system; according to a fractional order linear system Lyapuvov stability theory, a synchronous controller is designed; and different scaling factors are selected, isomer projection synchronization between fractional order hyper chaotic systems is realized, and the validity of the method is confirmed through numerical simulation.

Described is a system for trimming the value of an electronic component. The system comprises: at least one trimming component, each trimming component having an associated switch for selectively connecting that trimming component to the electronic component in response to a corresponding bit in a control vector. A comparator is included for generating an output bit having a first value if a net value of the electronic component and any connected trimming components differs from a desired value. A controller connected to the switches and the comparator generates the control vector in dependence on the output of comparator, the controller comprising a shift register for sequentially receiving successive output bits from the comparator; wherein the control vector comprises the contents of the shift register and wherein a bit of said first value in control vector effects switching of the corresponding switch.

Described is a system for trimming the value of an electronic component. The system comprises: at least one trimming component, each trimming component having an associated switch for selectively connecting that trimming component to the electronic component in response to a corresponding bit in a control vector. A comparator is included for generating an output bit having a first value if a net value of the electronic component and any connected trimming components differs from a desired value. A controller connected to the switches and the comparator generates the control vector in dependence on the output of comparator, the controller comprising a shift register for sequentially receiving successive output bits from the comparator; wherein the control vector comprises the contents of the shift register and wherein a bit of said first value in control vector effects switching of the corresponding switch.

The invention relates to an integrated detection system and method for energy storage converter grid-connected and off-grid characteristics. A grid-connected converter unit and a simulation converter unit are comprised. The grid-connected converter unit comprises a rectifier module and an LCL filter. The alternating current side of the rectifier module is connected with a power grid through the LCL filter. The direct current side is connected with the direct current side of the simulation converter unit. The alternating current side of the simulation converter unit is connected with a detected energy storage converter. According to the technical scheme provided by the invention, the topology of the integrated detection system for energy storage converter grid-connected / off-grid characteristics is provided, which improves the effectiveness of the energy storage converter detection system and the power grid simulation fitting.

A controller for a continuously variable transmission (CVT) mounted in a vehicle. The controller includes a first setting unit for setting a basic speed ratio of the CVT; a second setting unit for setting an adjustment speed ratio of the CVT; and a control unit for controlling the CVT based on the basic speed ratio and adjustment speed ratio. The second setting unit includes an increasing unit for progressively increasing the adjustment speed ratio according to a decrease in a target torque interrelated value in a first operating area, and a decreasing unit for progressively decreasing the adjustment speed ratio according to a decrease in the target torque interrelated value in a second operating area. Between the first operating area and the second operating area, the second setting unit maintains the adjustment speed ratio that is set finally.

A DC / AC converter includes a resonant circuit having a first capacitor connected to at least one of a primary winding and a secondary winding of a transformer and an output end connected to a load, the resonant circuit receiving an alternating signal having a predetermined frequency and amplitude to pass a current, a variable impedance element connected in parallel with a part of the output end of the resonant circuit, the variable impedance element changing the impedance value thereof according to a current passing through the load, and a controller to control the current passing through the load to a predetermined value by changing the resonant frequency of the resonant circuit according to the changed impedance value of the variable impedance element.

The invention relates to a transmission for an electric vehicle. The transmission comprises a permanent magnetic speed adjustment part and a reduction gearbox; the permanent magnetic speed adjustment part includes a cylinder-shaped conductor rotor, a cylinder-shaped permanent magnetic rotor and a speed adjustment mechanism; the cylinder-shaped conductor rotor includes a conductor rotating cylinder, an inner-layer conductor and a driving flange; the conductor rotating cylinder is connected with the input shaft through the driving flange; the driving flange sleeves the input shaft; the driving flange is connected with the conductor rotating cylinder; the cylinder wall at the inner side of the conductor rotating cylinder is provided with the inner-layer conductor; the cylinder-shaped permanent magnetic rotor includes a permanent magnetic rotating cylinder, permanent magnets and a driven flange; two ends of a rotating shaft are supported on the reduction gearbox and the permanent magnetic rotating cylinder; the driven flange sleeves the rotating shaft; the driven flange is connected with the permanent magnetic rotating cylinder; the permanent magnets are embedded into the permanent magnetic rotating cylinder along the circumferential direction of the permanent magnetic rotating cylinder; a gap is left between the outer sides of the permanent magnets and the inner wall of the inner-layer conductor; and the speed adjustment mechanism includes an inner circular sleeve, an outer circular sleeve and a slider; the inner circular sleeve sleeves the outer circumferential surface of the driven flange; and the slider arranged on the outer circular sleeve is installed in a slide groove in the inner circular sleeve. The transmission for the electric vehicle of the invention is advantageous in excellent vibration isolation and damping effects, and smooth operation.

An actuator control method and an actuator control device that incorporate an element of feedback control in time optimal control, including: a calculation step of calculating a switching time at which an acceleration output is switched to a deceleration output and an end time of the deceleration output expressed by time elapsed from a calculation time at which calculation for control is performed using a maximum acceleration and a maximum deceleration, which are measured in advance, at the time of the maximum output of control force of an actuator; a control output step of setting the control force of the actuator to a maximum acceleration output from the calculation time to the switching time, setting the control force of the actuator to a maximum deceleration output from the switching time to the end time, and ending the output of the control force at the end time, and an update step of calculating and updating the switching time and the end time by repeating the calculation step at each preset time.

An actuator control method and an actuator control device that incorporate an element of feedback control in time optimal control, including: a calculation step of calculating a switching time at which an acceleration output is switched to a deceleration output and an end time of the deceleration output expressed by time elapsed from a calculation time at which calculation for control is performed using a maximum acceleration and a maximum deceleration, which are measured in advance, at the time of the maximum output of control force of an actuator; a control output step of setting the control force of the actuator to a maximum acceleration output from the calculation time to the switching time, setting the control force of the actuator to a maximum deceleration output from the switching time to the end time, and ending the output of the control force at the end time, and an update step of calculating and updating the switching time and the end time by repeating the calculation step at each preset time.

The invention proposes a power grid simulator having accurate harmonic voltage and virtual impedance control. The power grid simulator comprises a reactor, a rectification unit, a main inversion unit and an auxiliary inversion unit, wherein the rectification unit comprises a three-phase PWM rectifier and a PWM rectification controller, the main inversion unit comprises a main inverter and a main inversion controller, the auxiliary inversion unit comprises an auxiliary inverter and an auxiliary inversion controller, an input end of the three-phase PWM rectifier is accessed to a power grid through the reactor, an output end of the three-phase PWM rectifier is connected with the main inverter and the auxiliary inverter respectively, and an output end of the auxiliary inverter is connected with an output end of the main inverter. Compared with the prior art, the power grid simulator having accurate harmonic voltage and virtual impedance control, provided by the invention, has the advantages that a standard power grid output voltage, a power grid voltage fault working condition and a power grid harmonic component can be simulated, the power grid impedance change can also be simulated, and the demand of distributed power generation test research can be met very well.

The invention relates to a transmission for an electric vehicle. The transmission comprises a permanent magnetic speed adjustment part and a reduction gearbox; the permanent magnetic speed adjustment part includes a cylinder-shaped conductor rotor, a cylinder-shaped permanent magnetic rotor and a speed adjustment mechanism; the cylinder-shaped conductor rotor includes a conductor rotating cylinder, an inner-layer conductor and a driving flange; the conductor rotating cylinder is connected with the input shaft through the driving flange; the driving flange sleeves the input shaft; the driving flange is connected with the conductor rotating cylinder; the cylinder wall at the inner side of the conductor rotating cylinder is provided with the inner-layer conductor; the cylinder-shaped permanent magnetic rotor includes a permanent magnetic rotating cylinder, permanent magnets and a driven flange; two ends of a rotating shaft are supported on the reduction gearbox and the permanent magnetic rotating cylinder; the driven flange sleeves the rotating shaft; the driven flange is connected with the permanent magnetic rotating cylinder; the permanent magnets are embedded into the permanent magnetic rotating cylinder along the circumferential direction of the permanent magnetic rotating cylinder; a gap is left between the outer sides of the permanent magnets and the inner wall of the inner-layer conductor; and the speed adjustment mechanism includes an inner circular sleeve, an outer circular sleeve and a slider; the inner circular sleeve sleeves the outer circumferential surface of the driven flange; and the slider arranged on the outer circular sleeve is installed in a slide groove in the inner circular sleeve. The transmission for the electric vehicle of the invention is advantageous in excellent vibration isolation and damping effects, and smooth operation.

The invention discloses a single-phase bidirectional continuously adjustable static reactive power compensator, the compensator comprises a control system and a compensation loop, the compensation loop is connected on a phase line and a null line, and a high-pass filter composed of a filtering reactor and a filtering capacitor is arranged between the phase line and the null line; the compensationloop also comprises a transformer, a first power switch is arranged between a primary side positive end of the transformer and the filtering reactor, and a second power switch is arranged between theprimary side positive end of the transformer and the null line; a capacitance compensation circuit and a reactance compensation circuit, arranged in parallel, are set between a secondary side positiveend of the transformer and the filtering reactor; and the first power switch, the second power switch, a capacitance power switch and the reactance power switch are all controlled by the control system to realize on and off. The single-phase bidirectional continuously adjustable static reactive power compensator provided by the invention solves a defect that capacitor compensation cannot be adjusted continuously, and further improves system stability in combination with the advantage of accurate compensation of the static reactive power compensator.

A touch sensing device for detecting approach of a detection target to a detection area of a sensing face, including a base, detection electrodes, and a controller. The base includes a counterpart area corresponding to the detection area and being located on a deeper side in the touch sensing device relative to the detection area. The detection electrodes are arranged at intervals in the counterpart area, and an electrostatic capacitance between at least one of the detection electrodes and the detection target changes in response to an approach of the detection target to the detection electrode so as to change an output signal from the detection electrode. The controller detects that the detection target approaches the detection area corresponding to the counterpart area when an output signal or signals from a predetermined number, being at least one, of the detection electrode or electrodes in the counterpart area has changed.

A vehicular integrated brake system has an EBS and an EPB system integrated in the system to simplify a brake control system and reduce costs. An EBS function and an EPB function are incorporated by adding an EPB valve in the EBS valve system, so that the actuation of the EBS valves and the EPB valve can be controlled by a single integrated controller. A separate pneumatic route connecting the EPB is removed to optimize the pneumatic route. Thus, it is possible to simplify the controller and to reduce costs.

The present invention relates to an integrated detection system and method for grid-connected and off-grid characteristics of an energy storage converter. The method includes: a grid-connected converter unit and a simulated converter unit. The grid-connected converter unit includes a rectifier module and an LCL filter The AC side of the rectifier module is connected to the power grid through the LCL filter, the DC side is connected to the DC side of the analog converter unit, and the AC side of the analog converter unit is connected to the measured energy storage converter; the present invention The technical solution provided proposes the topology of the integrated detection system for the on-grid / off-grid characteristics of the energy storage converter to improve the effectiveness of the detection system of the energy storage converter and the fit of the simulated power grid.