586 results about "Stopping power" patented technology

A drilling device prevents recurrence of an overload condition after occurrence of the overload condition, thereby improving operability and safety in the drilling device. A motor for rotating a drill is connected to an AC power source through a motor control unit, a current detector, and a power switch. A magnet is also connected to the AC power source through the power switch and a full-wave rectifier. The motor control unit rotationally drives the motor on the basis of a signal sent from a main control unit according to a state in which a motor start switch is on. The main control unit controls the motor control unit to gradually reduce a supply voltage to the motor when the motor becomes overloaded, to gradually increase the voltage to the normal power supply condition when the overload condition is vanished, and to stop power supply to the motor if the overload condition continues for a predetermined period.

A non-contact power supply system includes a power supply device for transmitting high frequency power and a load device which receives the high frequency power in a non-contact mode by electromagnetic induction to supply it to a load. The power supply device includes a power transmission unit having a primary power coil and an inverter circuit, an inquiry unit having at least one primary signal coil and an oscillation circuit, a signal detection unit and a control unit. The load device includes a power reception unit having a secondary power coil magnetically coupled to the primary power coil and a power conversion unit, a secondary signal coil magnetically coupled to the primary signal coil, and a response unit which is operated by electromotive force induced in the secondary signal coil. The control unit stops power transmission when no signal is detected and executes power transmission which a signal is detected.

A power-receiving-side control circuit of a power reception device performs intermittent load modulation by causing an NMOS transistor to be turned ON / OFF during normal power transmission. A power-transmission-side control circuit included in a power transmission control device of a power transmission device monitors, an intermittent change in the load of the power reception device during normal power transmission. The power-transmission-side control circuit determines that a foreign object has been inserted between a primary coil and a secondary coil and stops power transmission when an intermittent change in load cannot be detected. The amount of power supplied to the load may be compulsorily reduced when the load state of the load is heavy.

Hafnium oxide HfO2 scintillator compositions are doped with titanium oxide and at least an oxide of a metal selected from the group consisting of Be, Mg, and Li. The scintillator compositions can include sintering aid material such as scandium and / or tin and a rare earth metal and / or boron for improved transparency. The scintillators are characterized by high light output, reduced afterglow, short decay time, and high X-ray stopping power. The scintillators can be used as detector elements in X-ray CT systems.

A rapid charging power supply system comprises: a stationary rapid charger (11) for controlling power supplied from a power supply (1) to be a DC power optimum for rapidly charging an on-vehicle electric storage means (85c) equipped in a second electric moving body (53); a power supply switching means (11m) for switching and supplying the DC power from the stationary rapid charger (11) to either a first charging circuit (20A) for supplying the DC power to a first electric moving vehicle (50) or a second charging circuit (20B) for supplying the DC power to the second electric moving body (53); an stationary electric storage means (15) capable of storing DC power charged by the DC power supplied to the side of the first charging circuit (20A) from the stationary rapid charger (11) via the power supply switching means (11m) and used for being directly supplied to at least the first electric moving body (50); and a power feeding control means (12) for stopping power supply to the stationary electric storage means (15) from the stationary rapid charger (11) when charging an on-vehicle electric storage means (85) of the first electric moving body (50) by the DC power output from the stationary electric storage means (15).

It is an object of the present invention to prevent recurrence of an overload condition after occurrence of the overload condition, thereby improving operability and safety in a drilling device. A motor 12 for rotating a drill is connected to an AC power source 10 through a motor control unit 28, a current detector 30, and a power switch 36. A magnet 16 is also connected to the AC power source 10 through the power switch 36 and a full-wave rectifier 18. The motor control unit 28 rotationally drives the motor on the basis of a signal sent from a main control unit according to a state in which a motor start switch 38 is on. The main control unit 14 controls the motor control unit 28 to gradually reduce a supply voltage to the motor 12 when the motor 12 becomes overloaded, to gradually increase the voltage to the normal power supply condition when the overload condition is vanished, and to stop power supply to the motor 12 if the overload condition continues for a predetermined period.

A control device for an electric vehicle where a threshold storing unit is provided which stores two large and small thresholds and (first threshold>second threshold), and a drive state switching unit is provided which reduces torque output of a drive motor, while allowing accessories to operate, when a remaining energy capacity SOC from a remaining energy capacity detecting unit fails below the first threshold, and stops power supply to the drive motor, while allowing the accessories to operate, when the remaining energy capacity SOC from a remaining energy capacity detecting unit falls below the second threshold.

The present invention provides a hybrid fuel cell system that is configured to determine if an idle stop condition has been satisfied during a normal operation mode of the hybrid fuel cell system, cut off air supply to a fuel cell to stop power generation of the fuel cell and reduce a voltage which the fuel cell outputs in response to determining that the idle stop condition has been satisfied. The voltage of a bidirectional converter, connected between a battery and a bus terminal is reduced and the output of the fuel cell is controlled, based on a first predetermined value and maintained at that first predetermined value. Subsequently, the battery is charged via the output current of the fuel cell generated by maintaining the reduced voltage of the bidirectional converter.

According to one embodiment, an information processing apparatus includes a first state control unit which stores system information in a hard disk drive and then transitions a system state from a working state to a standby state, a restoration process unit which supplies power to a processor in a state in which the hard disk drive is kept in an inactive state, when a wakeup event has occurred, thereby restoring the system state to the working state, a determination unit which determines whether a factor of occurrence of the wakeup event is occurrence of an alarm signal for instructing transition to a hibernate state, and a second state control unit which stops power supply to the processor and a main memory if the factor of occurrence of the wakeup event is the occurrence of the alarm signal, thereby transitioning the system state to the hibernate state.

Scintillator compositions having a garnet crystal structure useful for the detection of high-energy radiation, such as X, beta, and gamma radiation, contain (1) at least one of terbium and lutetium; (2) at least one rare earth metal; and (3) at least one of Al, Ga, and In. Terbium or lutetium may be partially substituted with Y, La, Gd, and Yb. In particular, the scintillator composition contains both terbium and lutetium. The scintillators are characterized by high light output, reduced afterglow, short decay time, and high X-ray stopping power.

The invention relates to an electric vehicle charging method based on storage battery monitoring and fault diagnosis, wherein the electric vehicle charging method settles defects in prior art. The electric vehicle charging method comprises the steps of monitoring fluctuation or abrupt change of discharging voltage and current of the storage battery, acquiring a voltage signal and a current signal in the discharging process and storing the acquired voltage signal and the acquire current signal, and uploading the stored data to the charging device in each charging; processing and classifying the uploaded data by the charging device, furthermore deleting the data stored in the electric vehicle, and emptying a storage space; performing fault diagnosis and battery service prediction through performing state data processing on the classified data; finishing battery service life prediction and fault state diagnosis, and performing feedback to a user; if a greatly safety potential hazard exists in the battery, transmitting fault early-warning on the user, and simultaneously stopping power supply to the storage battery; and when a latent fault risk exists, transmitting early-warning to the user, and acquiring the battery service life and fault prediction information by the user.

A vehicle barrier is formed with a barrier gate mounted on a pair of opposing lift arms pivotally connected via pivot shafts to a support structure. A plurality of endless bands are looped around the opposing pivot shafts and positioned to pass through compartments in the barrier gate. The lift arms and the barrier gate may be fabricated from lightweight material, such as thin steel, aluminum or plastic, so that the stopping power of the vehicle barrier is provided by the anchored bands. In permanent or portable configurations, the lightweight barrier gate can be quickly raised by hydraulic cylinders, or other appropriate means, into a deployed position to interfere with the passage of a vehicle over the barrier. The anchoring of the bands at ground or below ground locations on both sides of the barrier provides stopping power without requiring massive barrier structures to be raised and lowered in use.

A port power supplying control section instructs a power supply interface section to start power supply from a port to which a power receiving apparatus successfully detected by power receiving apparatus detection processing is connected. For each port, power supply from which is started, a power supply possible / impossible judgment section sequentially obtains the corresponding non-power-supply time zone from a table stored in a scheduling section, sequentially receives time data from a control section, and compares these. In the case that the time data is inside the range of the obtained non-power-supply time zone, the port power supplying control section is instructed to stop power supply from the corresponding port. In the case that the time data is outside the range of the non-power-supply time zone, a power receiving apparatus detection processing section is instructed to perform power receiving apparatus detection processing so that power supply from the corresponding port is resumed.

The invention relates to an inorganic scintillator material of formula Lu(2−y)Y(y−z−x)CexMzSi(1−v)M′vO5, in which:M represents a divalent alkaline earth metal and M′ represents a trivalent metal, (z+v) being greater than or equal to 0.0001 and less than or equal to 0.2,z being greater than or equal to 0 and less than or equal to 0.2;v being greater than or equal to 0 and less than or equal to 0.2,x being greater than or equal to 0.0001 and less than 0.1; andy ranging from (x+z) to 1.In particular, this material may equip scintillation detectors for applications in industry, for the medical field (scanners) and / or for detection in oil drilling, The presence of Ca in the crystal reduces the afterglow, while stopping power for high-energy radiation remains high.

A power-receiving device is provided with a load circuit including a load and a switching element that are connected in series between a pair of output terminals of a power-receiving side power converter. The load of the load circuit has such a resistance value that the voltage of elements of a power-receiving side pad or the power-receiving side power converter does not reach a breakdown voltage before a power-transmission device stops power transmission to the power-receiving device after the power-receiving device and the load device are disconnected from each other.

The invention discloses a failure alarm circuit for an emergency stop solenoid valve loop of a diesel engine. The failure alarm circuit consists of a stop power supply, a stand-by power supply, a first current type relay normally-closed contact, a second current type relay normally open contact, a second current type relay normally-closed contact, a third current type relay normally open contact, a voltage type relay coil, a first current type relay coil, a second current type relay coil, a third current type relay coil, an emergency stop solenoid valve, a stand-by solenoid valve, an alarm power supply, a voltage type relay normally-closed contact, a first alarm lamp and a second alarm lamp. The failure alarm circuit is simple, and can respectively alarm and carry out timely self-protection for power failure caused by failure of the stop power supply and the faults of the emergency stop solenoid valve so as to ensure the normal work of the emergency stop solenoid valve loop. The invention further provides an alarm method for the failure alarm circuit for the emergency stop solenoid valve loop of the diesel engine, wherein alarms for different fault problems are given off through different alarm lamp lightening modes.

The invention discloses a diesel generator emergent stop electromagnetic valve loop failure warning circuit. The warning circuit consists of a stop power supply, a spare power supply, a first current type relay normally closed contact, a second current type relay normally open contact, a second current type relay normally closed contact, a third current type relay normally open contact, a voltage type relay coil, a first current type relay coil, a second current type relay coil, a third current type relay coil, an emergent stop electromagnetic valve, a spare electromagnetic valve, a diesel generator, an AC / DC module, a voltage type relay normally closed contact, a first warning lamp and a second warning lamp. The warning circuit is simple, and can respectively perform the warning and timely self-protection for the failure of the stop power supply of an emergent stop electromagnetic valve loop and the failure of the emergent stop electromagnetic valve. The invention further discloses a diesel generator emergent stop electromagnetic valve loop failure warning method; and different failure problems are respectively warned through different warning lamp lightening modes.

The invention relates to electric power-assisted steering control method and control device thereof for vehicles. The method comprises the following steps of: storing normal mode calculating data and abnormal mode calculating data in a power-assisted control device, and calculating a target power-assisted torque by acquiring the steering torque of a steering wheel and the signal of vehicle speed; detecting whether fault factors causing the motor torque to deviate the mapping value of the target power-assisted torque exist or not by a fault detection device; if the fault factors do not exist, calculating the target power-assisted torque by the power-assisted control device based on the normal mode; and if the fault factors exist, selecting to calculate the target power-assisted torque based on the abnormal mode or stop power-assisted steering according to the magnitude of the vehicle speed. The control device comprises a torque sensor and a vehicle speed sensor, wherein the torque sensor and the vehicle speed sensor are respectively connected with an electric control unit, and the electric control unit is connected with a motor for power-assisted steering. In the invention, based on the security and the necessarily degree of the power-assisted steering to generate the steering power-assisted torque, the control of electric power-assisted steering is more scientific and reasonable.

A power supply control circuit for controlling power supply or stop of power supply is provided between a power source and a circuit block such as a processor. The power supply control circuit not only performs power supply to the circuit block or intentionally stops power supply but also is able to hold the power supply potential when the power supply is suddenly stopped, so that a loss of data in the circuit block can be prevented. By utilizing the power supply potential held by the power supply control circuit, data in the circuit block is saved in the nonvolatile memory device, so that a loss of data in the circuit block can be prevented. As described above, the power supply control circuit functions as a power gating switch and a circuit for holding the power supply potential in the case where power supply is suddenly stopped.

A power transmission device includes: a power transmission coil to transmit electric power to a power receiving coil by an electromagnetic induction method; driving unit to supply a driving voltage to the power transmission coil; a detection unit to detect an electric current flowing in the power transmission coil based on the driving voltage; a control unit to change an amplitude of the driving voltage; a starting point detection unit to detect the amplitude of the driving voltage as a characteristic point at which an electric current starts to flow in the power receiving coil, on a characteristic line representing a relationship between the driving voltage supplied to the power transmission coil and the electric current detected by the detection unit; and a transmission stopping control unit to stop power transmission by the power transmission coil if the characteristic point is not detected by the starting point detection unit.

A charged state detecting apparatus for a secondary battery is provided, which can suppress deterioration in the accuracy of detecting a charged state, such as an SOC, the deterioration being caused by variation of a polarization state of a battery. The charged state detecting apparatus stabilizes an amount of polarization of the battery, stops power generation upon confirmation of the stabilization of the polarization amount, and sufficiently alters the current of the battery to sample a required number of data pairs of voltage and current of the battery. Using these data pairs, the charged state detecting apparatus detects a charged state, such as the SOC, of the battery.

A fuel cell system including: a fuel cell supplied with a fuel gas to a fuel electrode thereof and air to an air electrode thereof; a fuel gas supplying device which supplies the fuel gas to the fuel electrode; an air supplying device which supplies air to the air electrode; a fuel gas pressure regulator which regulates fuel gas pressure at the fuel electrode; a purge valve which discharges exhaust fuel gas from the fuel electrode to the outside; and a controller. The controller continues power generation of the fuel cell, controlling the fuel gas pressure regulator to lower the fuel gas pressure at the fuel electrode, having the air supplying device continuing supplying air to the air electrode with the purge valve closed; and after the fuel gas pressure at the fuel electrode becomes equal to or lower than the atmospheric pressure, stops power generation of the fuel cell.

The invention discloses a hybrid power vehicle system based on a dual-rotor motor power coupler and a working mode switching control method of the hybrid power vehicle system. The hybrid power vehicle system comprises an engine system, a power driving system, a dual-rotor motor power coupler control system and an ABS. System control is in seven working modes which are respectively the stop power generation mode, the pure electric running mode, the charging running mode, the engine running high-speed running mode, the hybrid power diving mode, the back-up running mode and the braking energy recovery mode. Transmission efficiency can be improved, the optimum control over engine fuel economy can be achieved, braking energy can be recovered through the dual-rotor motor power coupler, the energy-saving effect is also achieved, and running stability of a vehicle can be achieved in the working mode switching process.

A smart overcurrent protection circuit is introduced. In case of successive current due to certain malfunctions flows in power transistor of a switching circuit a control signal is activated to stop power transistor switching. When overcurrent condition is no longer satisfied, the switching circuit is still able to return to normal operation.

Provided are a method and apparatus for stopping power supply to a radio frequency identification (RFID) system. The apparatus includes: a power supplier supplying power to a high RFID tag; an input unit rectifying and boosting an input predetermined frequency band signal and outputting a direct-current (DC) voltage signal; a wake-up determiner comparing a voltage of the DC voltage signal output from the input unit with a predetermined reference voltage and outputting a HIGH signal or a LOW signal; and a switch stopping power supply to the high RFID tag if the wake-up determiner outputs the LOW signal.

The invention provides a method for realizing the binding of a mobile terminal and a user. The method comprises the following steps of (a) setting up allowable characteristic information of a user identification card in the close-range wireless communication NFC analog front end chip of the mobile terminal supporting enhancement type close-range wireless communication eNFC; (b) the NFC analog front end chip reading the characteristic information of the user identification card currently used by the mobile terminal when the mobile terminal is on, and then comparing with the preset characteristic information of the user identification card; (c) the NFC analog front end chip continuing to power or stopping powering the user identification card currently used by the mobile terminal according to the comparison results. The method binds the mobile terminal and the user identification card, thereby enabling the mobile terminal to work normally only on the condition that the allowable user identification card is inserted, and consequently enabling the mobile terminal to have the function of network lock or theft protection.

This invention relates to a multifunctional structure for mitigating the effects of explosions and impeding the penetration of projectiles that is also highly effective at supporting structural (i.e. static) loads. By wrapping a tile in multiple layers of high-performance fabric, upon impact by a projectile additional tensile forces are created, aiding in the deceleration of the projectile. With added layers the tensile forces aiding projectile deceleration increase, resulting in a ballistic panel for use in multifunctional structural / armor systems having a lighter weight and greater stopping power than conventional armor systems in addition to functioning as part of a structure for supporting static loads.