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469results about How to "Reliable start" patented technology
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Power supply control apparatus and method for hybrid vehicle
InactiveUS20100001523A1Frequency of operation be unstableReduce frequencyElectrical testingVehicle sub-unit featuresElectrical batteryDc converter
When the temperature of an engine and a main battery is low at the time of activating a vehicle system, an ECU starts the engine in advance and outputs a running permission signal after completion of engine startup. At this stage, the ECU suspends a defect diagnosis operation on a subsidiary load and feedback-controls the DC / DC converter by setting the voltage control value to a level lower than the output voltage from the subsidiary battery and at least the lower limit of the operating voltage of the ECU. The ECU feedback-controls the DC / DC converter by setting the voltage control value to a level of at least the output voltage of the subsidiary battery in response to completion of engine start-up. Then, the suspension of the defect diagnosis operation on the subsidiary load is canceled and a running permission signal is output.
Owner:TOYOTA JIDOSHA KK +1
Starting power generation system for electric automobile
ActiveCN102386829ASimple structureImproved power to weight ratioBatteries circuit arrangementsPropulsion using engine-driven generatorsStarter generatorEngineering
The invention discloses a starting power generation system for an electric automobile, which comprises a double salient pole starting power generator, a starting power generation controller and controller working power; the starting power generation controller comprises a bidirectional power conversion circuit, an exciting current detection unit, an output current detection unit, an output voltage detection unit, a position rotation speed detection unit, an armature current detection unit, an exciting main circuit and a digital signal processor, wherein the exciting main circuit includes an exciting relay, a rectification filter unit and a chopper circuit which are connected in series in turn; and the digital signal processor is connected with the exciting current detection unit, the output current detection unit, the output voltage detection unit, the armature current detection unit, the position rotation speed detection unit, and the control ends of the bidirectional power conversion circuit, the exciting relay and the rectification filter unit by signals respectively. The invention also discloses an electric automobile and a control method thereof. Compared with the prior art, the starting power generation system is simple in structure, low in cost and flexible to control.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Hand-held power tool with air spring percussion mechanism, linear motor, and control process
ActiveUS20090065226A1Reduce dataHigh impact frequencyAssociation with control/drive circuitsAC motor controlAir springHand held
A hand-held power tool (1) includes a linear motor (2) having a rotor (3) which is movable along a percussion axis (A) in an axially limited manner between two reversal points (W) and which can be driven by the striking piston (5) of the power tool with the intermediary of an air spring (4), sensors designed for determining the actual state of the rotor (3) and connected to a computer (9) connected via power electronics (33) to at least one field coil (10) of the linear motor (2), with the rotor (3) being displaced against a contact element (11a, 11b) at least at one reversal point (W) and being pressed against the contact element electromagnetically; and a control process for the hand-held power tool.
Owner:HILTI AG
Pressure intensifier
ActiveUS7354252B2Cavitation phenomenon can be preventedReliable startFluid-pressure convertersPiston pumpsControl lineEngineering
A pressure intensifier for fluids has an intensifier piston with a high-pressure piston and a low-pressure piston having a greater diameter than the high-pressure piston. The pistons are moveable in a high-pressure cylinder and a low-pressure cylinder, respectively, and move together. The high-pressure cylinder is connected to a high-pressure connection. A first control line is connected to a supply connector. A second control line is connected to a control valve having first and second switching positions. A first connection connects the control lines. The low-pressure cylinder is connected via the control valve in the first switching position to a supply connector and in the second switching position to a return connector. The switching positions are controlled by the intensifier piston. The intensifier piston opens or closes the first connection between the control lines. The first connection is arranged completely within a movement stroke of the high-pressure piston.
Owner:MINIBOOSTER HYDRAULICS
System and method for locomotive engine cranking
ActiveUS20090315328A1Efficient and reliable engine startingEfficient and reliableElectric machinesPropulsion using engine-driven generatorsEngineeringCrankshaft
In a method of operating a starting system coupled to a crankshaft of a vehicle engine, during engine starting, torque supplied by the starting system to the engine is continuously adjusted to provide more than two levels based on operating conditions of the vehicle or engine.
Owner:GE GLOBAL SOURCING LLC
Starting method of permanent-magnet synchronous compressor for variable-frequency air conditioner
ActiveCN101917152AAvoid damageAvoid startup instability issuesStarter arrangementsPermanent magnet synchronous motorClosed loop
The invention discloses a starting method of a permanent-magnet synchronous compressor for a variable-frequency air conditioner, which comprises the following steps of: firstly locking the initial position of a rotor through a PARK process, then carrying out open-loop starting, switching to a closed-loop control mode for trial operation when the dragging frequency of a permanent-magnet synchronous motor reaches the lowest frequency Ft of switching an open loop to a closed loop when in open-loop starting, reading a magnetic flux valve to judge whether the closed-loop control mode is successfully switched for operation or not, and if the closed-loop control mode is not successfully switched, adjusting the PARK current and the frequency acceleration of the open-loop starting process for restarting according to the magnitude of the magnetic flux valve; and setting the limitation of starting times, reporting a fault signal to an upper computer after unsuccessful starting for many times, and giving a restarting signal by the upper computer. The invention can guarantee the reliable starting of the permanent-magnet synchronous compressor under the condition of heavier or lighter loads.
Owner:NINGBO AUX ELECTRIC
Power supply control apparatus and method for hybrid vehicle
InactiveUS8039976B2Startability is improvedAvoiding system shutdownElectrical testingVehicle sub-unit featuresLower limitEngineering
When the temperature of an engine and a main battery is low at the time of activating a vehicle system, an ECU starts the engine in advance and outputs a running permission signal after completion of engine startup. At this stage, the ECU suspends a defect diagnosis operation on a subsidiary load and feedback-controls the DC / DC converter by setting the voltage control value to a level lower than the output voltage from the subsidiary battery and at least the lower limit of the operating voltage of the ECU. The ECU feedback-controls the DC / DC converter by setting the voltage control value to a level of at least the output voltage of the subsidiary battery in response to completion of engine start-up. Then, the suspension of the defect diagnosis operation on the subsidiary load is canceled and a running permission signal is output.
Owner:TOYOTA JIDOSHA KK +1
Optical disk drive, its optical recording control method and data processing apparatus
InactiveUS6891786B2Make the starting of the recording opeIncrease speedCombination recordingDisposition/mounting of recording headsConstant linear velocityLight beam
In an optical disk drive, an OPC is performed prior to a start of recording of an optical disk by accessing a power calibration area of the disk with a light beam emitted by a light source while the disk is rotated at a constant linear velocity. An optimum recording power for the light source during the recording is determined based on results of the OPC. A highest linear velocity of linear velocities is changed to a next highest linear velocity for a controlled velocity of a disk rotation device during a subsequent OPC. It is detected whether the OPC and the determination are normally performed after one of the linear velocities is set. The controlled velocity during the recording is set to an angular velocity corresponding to the one of the linear velocities at which the OPC and the determination are normally performed.
Owner:RICOH KK
Storage apparatus, control method, and control device
InactiveUS20080052506A1Reliable startImprove reliabilityProgram control using stored programsMemory loss protectionMagnetic disksStart up
Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.
Owner:KK TOSHIBA
Start-up circuit for flyback converter having secondary pulse width modulation control
InactiveCN1404649AOvercome limitationsOvercome defectsApparatus with intermediate ac conversionElectric variable regulationCapacitanceControl signal
An output isolated, switching power supply (100) has a transformer (73) with a primary (91) and two secondaries (92, 93), and electronic switch (75) in series with the primary, a first rectifier (87) and filter (88) on the first secondary (93) to provide bias power during both startup and operating modes, and a second rectifier (80) and filter (82) on the second secondary (92) to provide regulated output power. A resistor-capacitor network (78, 74) on the primary side provides an initial operating condition, such as a single control pulse, to the electronic switch which causes sufficient energy to be transferred through the first secondary to supply sufficient startup energy to operate a current control integrated circuit (89) on the secondary side in a staged fashion. After the initial operating condition, the current control integrated circuit generates and applies a control signal to the electronic switch through an isolation circuit (77) to cause the electronic switch to turn on and off in controlled fashion in order to deliver regulated power to the output of the supply. The low voltage, secondary side, current control integrated circuit provides a further aspect of the present invention.
Owner:TE CONNECTIVITY CORP
Hand-held power tool with air spring percussion mechanism, linear motor, and control process
ActiveUS7926584B2Simple and robustKinematics is accordingly highly complicatedAssociation with control/drive circuitsAC motor controlAir springHand held
A hand-held power tool (1) includes a linear motor (2) having a rotor (3) which is movable along a percussion axis (A) in an axially limited manner between two reversal points (W) and which can be driven by the striking piston (5) of the power tool with the intermediary of an air spring (4), sensors designed for determining the actual state of the rotor (3) and connected to a computer (9) connected via power electronics (33) to at least one field coil (10) of the linear motor (2), with the rotor (3) being displaced against a contact element (11a, 11b) at least at one reversal point (W) and being pressed against the contact element electromagnetically; and a control process for the hand-held power tool.
Owner:HILTI AG
Method of starting up operation of fuel cell at low temperature
InactiveUS20050053809A1Reliable startFuel cell auxillariesSolid electrolyte fuel cellsFuel cellsEngineering
When it is detected that the temperature of the fuel cell stack is at the freezing temperature of water or less (step S1), an operation mode using a freezing temperature starting up operation control map is selected (step S2). Freezing temperature starting up operation of the fuel cell stack is performed according to the freezing temperature starting up operation control map (step S3). Then, when it is detected that the temperature of the fuel cell stack exceeds the freezing temperature (step S4), the operation mode using the freezing temperature starting up operation control map is switched to an operation mode using a normal starting up operation control map (step S5). Thus, normal starting up operation is performed according to the normal starting up control map (step S6).
Owner:HONDA MOTOR CO LTD
Control system
ActiveUS20110245034A1Suppress rise in rateShorten the time spanGas pressure propulsion mountingGearing controlCombustionControl system
A control system configured with a speed change mechanism. When starting combustion in an internal combustion engine under a combustion-stopped vehicle running condition, the combustion in the internal combustion engine is stopped, the speed change mechanism forms the one-way transmission speed, and the output member rotates. A rotational speed feedback control is executed that sets a value that multiplies a rotational speed of the output member by a speed ratio of the one-way transmission speed as a reference rotational speed of the input member, sets a starting rotational speed, and controls a rotary electric machine such that the rotational speed of the input member matches the target rotational speed. During execution of the rotational speed feedback control, a start control is performed that increases engagement pressure of the clutch to increase a rotational speed of the internal combustion engine and start combustion in the internal combustion engine.
Owner:AISIN AW CO LTD
Fuel Cell System
InactiveUS20080248351A1Reliable startLimited electrical powerBatteries circuit arrangementsFuel cell auxillariesFuel cellsElectric power system
The object of the present invention is to provide a fuel cell system enabling reliable startup thereof, even below the freezing point. The fuel cell system 1 is provided with a startup electric power calculation portion 71 for calculating electric power required for allowing an auxiliary device 50 to startup the fuel cell; an available electric power calculation portion 72 calculating the available electric power of the high voltage battery 22; and an auxiliary device electric power control means 73 for judging whether the available electric power exceeds the startup electric power, supplying electric power to the auxiliary device 50 to startup the fuel cell 10 when the available electric power is greater than the startup electric power, and cancelling startup of the fuel cell when the available electric power is not greater than the startup electric power.
Owner:HONDA MOTOR CO LTD
Safe computing platform
InactiveCN101980235AGuaranteed credibilitySafe and smooth startInternal/peripheral component protectionElectricityComputer module
The invention discloses a safe computing platform. The safe computing platform comprises a main processor (1), a South Bridge chip (2), an I / O interface (3), a BIOS chip (4), a user key (5), a hard disk (6), a credible hardware module (7) and a PMC connector (8), wherein the main processor (1) is in bidirectional connection with the South Bridge chip (2); and the safe computing platform is electrified to be started. The credible hardware module (7) is electrified for self-detect initialization first and then restore the main processor (1); at the same time, a safe control unit (9) in the credible hardware module (7) compares BIOS data; if the BIOS data passes the comparison, the main processor (1) is normally started and directly accesses the BIOS chip (4); and the platform finishes hardware-level identity authentication, I / O port control and data real-time encryption / decryption based on the safe hardware module (7). A new mainboard structure is adopted to implement various hardware-level safe control measures, so that the safety of the whole computing platform is effectively ensured.
Owner:706 INST SECOND RES INST OF CHINAAEROSPACE SCI & IND
Bandgap reference voltage circuit
InactiveUS6998902B2Improve reliabilityReduce dependenceElectric variable regulationEngineeringStart up
A bandgap reference voltage circuit includes a constant-current circuit, a reference voltage output circuit generating a reference voltage according to the constant current, a power supply voltage detection circuit, and a start-up output circuit. The start-up output circuit supplies a starting potential to the constant-current circuit until the power supply voltage detection circuit detects that the power supply has reached a voltage sufficient for the constant-current circuit to maintain operation. The power supply voltage detection circuit has elements analogous to the elements in the constant-current circuit that determine this voltage, so start-up operation can occur and end reliably. The start-up output circuit includes a low-impedance path from the power supply to a node controlling supply of the starting potential, so power-supply noise does not trigger unwanted output of the starting potential after start-up operation has ended.
Owner:LAPIS SEMICON CO LTD
Storage apparatus, control method, and control device which can be reliably started up when power is turned on even after there is an error during firmware update
InactiveUS7818556B2Reliable startImprove reliabilityError detection/correctionDigital computer detailsElectricityComputer science
Owner:KK TOSHIBA
Start control apparatus for engine generator
ActiveUS20120291739A1Start the engine reliablyReliable startAC motor controlElectric motor controlTop dead centerControl theory
In a start control apparatus for an engine generator having a booster adapted to boost an output of a battery, there is provided an engine starter adapted to supply the boosted battery output to an output winding as a motor current to start the engine, and it is configured to determine whether a position of the piston is before a top dead center (TDC) when the motor current is to be supplied to the winding, and the motor current is increased by an increment when the piston position of the engine is determined to be before the TDC.
Owner:HONDA MOTOR CO LTD
Hybrid drive system for a motor vehicle
InactiveUS20060266568A1Minimal fuel consumptionAvoid operationOperating modesElectric propulsion mountingMotor vehicle partElectric generator
Owner:BAYERISCHE MOTOREN WERKE AG
Storage apparatus, control method, and control device
InactiveUS20080126784A1Reliable startImprove reliabilityError detection/correctionDigital computer detailsStart upVolatile memory
Firmware FW1 and FW2 is separately stored in a non-volatile memory, in which a boot code for start-up and a restoration code are stored, and a first magnetic disk. A copy of the firmware FW1 stored in the non-volatile memory is stored in the first magnetic disk, and a copy of the entire firmware FW1 and FW2 stored in the first disk medium is stored in the second magnetic disk. When an error occurs during firmware update, upon next power-on, whether the volatile memory, the first magnetic disk, and the second magnetic disk are normal or abnormal is determined, and valid firmware is read and allocated to the volatile memory so as to perform start-up by a start-up mode corresponding to the determination contents.
Owner:FUJITSU LTD
Crystal oscillator with variable-gain and variable-output-impedance inverter system
ActiveUS7710212B2Reliable startHigh-frequency stabilityPulse automatic controlGenerator stabilizationEngineeringOperation mode
Owner:ANALOG DEVICES INC
Engine piston position and phase position full operation condition measurement system and method
The invention relates to engine piston position and phase position full operation condition measurement system and method which can accurately measure the stop position of an engine piston and the phase position of each cylinder and can judge the forward and reverse rotation of an engine crankshaft. In the invention, a photoelectric element is adopted as a sensor and can generate accurate signals when at a low speed; 128 different notches are evenly distributed on a designed crankshaft signal target disc; and 128 sets of different signals are generated when the signal target disc rotates in a circle with the crankshaft to mark the absolute position of the piston and judge the forward and reverse rotation of the engine. The four effect areas of a camshaft signal target disc also can mark the phase position of the engine. The measurement system and method designed by the invention can meet real-time piston position and engine phase monitoring of an instant inversion and direct start-stop system of a direct inject gasoline engine in aspects of function and accuracy and can complete measurement of crankshaft rotation speed and camshaft phase position.
Owner:JILIN UNIV
Starting method and starting device of internal combustion engine, method and device of estimating starting energy employed for starting method and starting device
InactiveUS7096840B2Avoiding unnecessary energy consumptionReliable startPower operated startersElectrical controlCombustionExternal combustion engine
In a method of starting an internal combustion engine, a combustion energy is generated by combusting a fuel that has been injected into a cylinder in an expansion stroke when the internal combustion engine is stopped. In the aforementioned method, the combustion energy generated by combusting the fuel is obtained based on a state of an air / fuel mixture within the cylinder to which the fuel has been injected. Based on the obtained combustion energy, a kinetic energy to be supplied to the internal combustion engine from a primary energy supply source is estimated. A difference between a predetermined target kinetic energy required for starting the internal combustion engine subsequent to the start of combustion and the estimated kinetic energy to be supplied from the primary energy supply source is obtained. The kinetic energy corresponding to the obtained difference is supplied from a secondary energy supply source in the form of a starter motor.
Owner:TOYOTA JIDOSHA KK
Single-phase brushless motor
InactiveCN104348268ASmall positioning torqueIncrease productivityMagnetic circuit stationary partsStructural associationBrushless motorsMagnetic poles
The invention provides a single-phase brushless motor. The single-phase brushless motor comprises a stator and a rotor capable of rotating relative to the stator, wherein the rotor comprises a plurality of permanent magnetic poles; the stator comprises a magnetic core and a winding wound on the magnetic core; the stator magnetic core comprises an outer ring part, an inner ring part and a plurality of wire winding parts connected between the inner ring part and the outer ring part; the winding is wound on the wire winding parts; the rotor is stored in the inner ring part; a uniform air gap is formed between the inner ring part of the stator and the rotor; the inner surface of one part, located between the adjacent wire winding parts, of the inner ring part is provided with a concave part; the center of the concave part is deviated from the symmetrical center of the adjacent wire winding parts; a starting angle of the motor is greater than a 45-degree electrical angle and is smaller than a 135-degree electrical angle, so that the bidirectional startup of the rotor of the motor is realized.
Owner:JOHNSON ELECTRIC SHENZHEN
Method for controlling automatic operation of standby power by microcomputer of inner bridge and single bus connection
ActiveCN101552489AEasy to checkSolve the stealth problemPower network operation systems integrationInformation technology support systemElectric power transmissionMicrocomputer
The invention belongs to control technology of electric power transmission and distribution, and relates to a method for controlling the automatic operation of standby power by using a microcomputer. The method includes two basic control methods which are the inner bridge connection or single bus sectional connection control method and the single bus connection control method, wherein the inner bridge connection or single bus sectional connection control method comprises the following control processes of: tripping control of a first breaker 1DL, tripping control of a second breaker 2DL, switching-on charge and discharge control of the first breaker 1DL, switching-on control of the first breaker 1DL, switching-on charge and discharge control of the second breaker 2DL, switching-on control of the second breaker 2DL, switching-on charge and discharge control of a third breaker 3DL, switching-on control of the third breaker 3DL, and abnormal signal control. The method has simple action principle and high reliability, is completely in accordance with the fundamental principle of the automatic operation of the standby power, and is applicable to the one-time main connection of electric power substations in three forms of inner bridge connection, single bus sectional connection and single bus connection, in the power transmission and distribution network.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ZHENJIANG POWER SUPPLY CO +1
Circuit weak feedback side protection self-adapting start distinguishing method
ActiveCN101707361AReliable startEmergency protective circuit arrangementsFault locationPhase currentsVoltage variation
The invention discloses a circuit weak feedback side protection self-adapting start distinguishing method, which judges whether the weak feedback side protection can be started or not and opens a lockout relay of the weak feedback side protection according to weak feedback starting elements such as a zero sequence current variation starting element, a zero sequence voltage variation starting element, a phase-to-phase current decrement judgment starting element, a phase-to-phase voltage decrement judgment starting element and the like through the weak feedback features in circuit fault; when any one of the four elements meets starting conditions, the starting conditions of the circuit weak feedback side protection can be considered to be met. The starting elements can be started repeatedly, can overcome the problem that the existing protective device can only judge weak feedback once, and can the lead weakfeed back criterion to overcome the defects of incapability of being arranged at two sides, low sensitivity, inadaptation of dynamic weak feedback and the like by being matched with other criterions.
Owner:STATE GRID SICHUAN ELECTRIC POWER +1
Gas turbine apparatus
InactiveUS7596939B2Stable combustionLow costEngine fuctionsSynchronous machinesCombustorGas compressor
Owner:EBARA CORP
Motor driving apparatus, motor driving method and disk driving apparatus
InactiveUS7667419B2Large amplitudeWide detection rangeMotor/generator/converter stoppersSynchronous motors startersResistive circuitsMotor drive
A motor driving apparatus includes a virtual difference voltage detecting unit operable to detect a difference voltage between a virtual neutral point of a resistor circuit connected in parallel to motor coils and a terminal of a motor coil in non-conduction state, a rotor position detecting unit operable to detect a position of the rotor based on the difference voltage, and a controller operable to control commutation of an inverter based on the rotor position. The motor driving apparatus has a searching start mode for detecting the rotor position and energizes the coils, and a back electromotive voltage feedback mode for controlling commutation based on the back electromotive voltage. In the searching start mode, a rotor position searching process and a rotation start torque applying process are alternately performed.
Owner:PANASONIC CORP
Axial-air-gap brushless vibration motor containing drive circuit
InactiveUS6998742B2Simple structureReliable startAssociation with control/drive circuitsMagnetic circuit rotating partsRadial planeAir core
Owner:TOKYO PARTS IND CO LTD
Procedure for starting an internal combustion engine
InactiveUS20080077308A1Reduce noiseStart fastAnalogue computers for vehiclesElectric ignition installationElectricityCombustion
In order to make a start-up of an internal combustion engine as quick as possible, whereby an electrical power output, which is as small as possible, is required, it is proposed to at least periodically activate a direct starting control device for the generation of a combustion torque and an electrical starter for the generation of a starter torque simultaneously during the start-up. In so doing, the power output of the electric starter is controlled as a function of a current combustion torque, so that the starter is continually operated only at a currently required power output. For this purpose, the electric starter is, for example, controlled in an open- and / or closed-loop in such a way that the current total torque resulting from the current combustion torque and the current starter torque does not undershoot a specifiable set point torque.
Owner:ROBERT BOSCH GMBH
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