146results about How to "Avoid power interruption" patented technology

The invention discloses a gear-shifting control method for an automatic hydraulic speed changer. The gear-shifting control method comprises the steps that in the one-time gear shifting process, only one clutch is started, the other clutch is combined, the torque exchanging process is carried out between the two movement clutches, oil pressure is controlled through the combination of the clutch controlling step and the separated clutch controlling step, and the flexible clutch combination is guaranteed by adjusting the K1 and K2 control pressure in the gear shifting process. The engine torque changing is controlled, and easy, efficient and smooth gear shifting controlling of the automatic hydraulic speed changer is achieved. The test carried out under the full accelerator aperture and other limiting conditions such as gear lifting and gear jumping and reducing in a low-gear gear area shows that the control method can meet the requirements for gear shifting quality of forward torque gear lifting, forward torque gear reducing, negative torque gear lifting and negative toque gear reducing.

A transmission includes an input, a first layshaft, a second layshaft, a first power path for transmitting power between the input and first layshaft and producing a first ratio of a speed of the first layshaft and a corresponding speed of the input, a second power path for transmitting power between the input and second layshaft and producing a second ratio of the speed of the second layshaft and corresponding speed of the input; and a clutch for releasably connecting the input and the output.

A power transmission for a motor vehicle includes an input, a first layshaft, a second layshaft; a first power path for transmitting power between the input and first layshaft, and producing a first ratio of a speed of the first layshaft and a corresponding speed of the input, a second power path for transmitting power between the input and second layshaft, and producing a second ratio of the speed of the second layshaft and corresponding speed of the input; and a clutch for releasably connecting the input and first power path.

A transmission includes an input, a first layshaft, a second layshaft, a first power path for transmitting power between the input and first layshaft and producing a first ratio of a speed of the first layshaft and a corresponding speed of the input, a second power path for transmitting power between the input and second layshaft and producing a second ratio of the speed of the second layshaft and corresponding speed of the input; and a clutch for releasably connecting the input and the output.

The invention discloses a power driving device of an electric vehicle and the electric vehicle and relates to the technical field of automobiles. The power driving device of the electric vehicle is invented for improving shifting comfort of the electric vehicle and sitting comfort. The power driving device of the electric vehicle comprises a motor, a first clutch, a second clutch, a speed reducer and a differential mechanism, the motor, the first clutch, the second clutch, the speed reducer and the differential mechanism are connected in sequence, the speed reducer is a planetary gear speed reducing mechanism formed by three elements of a sun wheel, a planet frame and a gear ring, a rotor of the motor is connected with a first driving disk of the first clutch and a second driving disk of the second clutch, a first driven disk of the first clutch is connected with a first element of the three elements, a second driven disk of the second clutch is connected with a second element of the three elements, the first element or the second element is connected with a gear ring of the differential mechanism, a third element of the three elements is fixed immovably, the differential mechanism is connected with a first semi-shaft and a second semi-shaft, and the first semi-shaft and the second semi-shaft can drive two wheels. The power driving device is mainly applied to the electric vehicle.

The invention relates to a device for heating liquids, comprising: a liquid container, at least one electrical heating element connected to the liquid container for heating liquid received in the liquid container, at least one boiling sensor connected to, the inner side of the liquid container for detecting a boiling temperature in a part of the liquid container located above the liquid, at least one overheating sensor thermally connected to the heating element, and an electrical circuit in which the heating element, the boiling sensor and the overheating sensor are received such that a power supply to the heating element can be interrupted by the boiling sensor and the overheating sensor.

A power transmission for a motor vehicle includes an input, a first layshaft, a second layshaft, an intermediate layshaft, a first power path for transmitting power between the input and first layshaft and producing a first ratio of a speed of the first layshaft and a corresponding speed of the input, a second power path for transmitting power between the input and second layshaft and producing a second ratio of the speed of the second layshaft and corresponding speed of the input, a speed reduction power path driveably connected to the intermediate layshaft, couplers for the first and second layshafts to various gearsets, a range coupler for coupling the output alternately to the speed reduction power path and the intermediate layshaft, and a clutch for releasably connecting the input and second power path.

Provided is a hybrid power system based on an engine and a motor and a power output method thereof. The hybrid power system comprises the engine connected to a clutch, the clutch is connected to a transmission input shaft, the transmission input shaft is connected to a transmission output shaft through a synchronizer and a power coupler, and the transmission output shaft is sleeved with a motor hollow shaft of the motor in a hollow mode; a middle shaft is arranged on a by-pass of the synchronizer and the power coupler, and the middle shaft can transfer power to the transmission output shaft. The hybrid power output method is controlled according to a pure engine mode, a motor assisted mode, a pure motor mode and a hybrid power mode respectively, the problem of power interruption during gear shift is solved, the motor and the transmission work mutually independently, the work efficiency is improved, the input torque and the range of speed are very big, and the hybrid power system based on the engine and the motor can adapt to complicated working condition.

The invention provides a double-motor compact transmission without power failure. The double-motor compact transmission without power failure comprises a motor A, a motor B, a planet row speed reduction device and a mechanical transmission module, wherein the planet row speed reduction device comprises sun gears, planet gears, planet carriers and gear rings; and the transmission module comprises an input shaft A, an input shaft B, four pairs of reduction gears and an output shaft. According to the transmission, through overall planning of the integral space of the motors and the transmission, the spatial size of the transmission is decreased, the light-weight design requirement is achieved, the economy of the transmission is improved, and three matched gears are achieved.

A flywheel energy storage system for preventing power interruptions to a load from interruptions of primary power includes a flywheel supported for rotation about an axis on a bearing system, and a motor-generator having a rotor coupled with the flywheel, and having a stator with multiple armature windings and a field coil. The field coil generates flux that passes through the armature windings as the rotor rotates to produce torque for accelerating the flywheel during charging, and produces electrical power from the flywheel during discharge. The armature windings are energized by a DC buss that is supplied by a rectifier connected to primary power. The flywheel system provides instantaneous full power capability along with output control for extracting more energy from the flywheel. The field coil is oversized and is powered in standby operation to produce an armature back emf that is at least 75% of the DC buss voltage. The current to the field coil remains substantially constant during a period including immediately before an interruption and immediately after and interruption of primary power. The flywheel system uniquely utilizes an extremely large field coil, which is preferably 25-50% of the weight of the flywheel. The increased field coil size allows for both full standby energization without overheating and also reduces the armature reaction such that full power is available during a power interruption without requiring instantaneous increasing of the field coil current. In one embodiment, the field controller has a speed sensor for monitoring rotational speed of the flywheel and for varying electrical power to the field coil, without monitoring the primary power for interruptions. The field controller varies electrical current to the field coil approximately inverse linearly with the rotational speed of the flywheel during both standby and discharging operation to govern power to the field coil during standby operation such that the back emf of the armature remains substantially constant during an interruption of power.

The invention provides a three-motor vehicle power system and a control method and device thereof. The three-motor vehicle power system comprises a first motor, a second motor and a third motor, wherein the first motor and the second motor are arranged on one axle of a front axle and a rear axle, and the third motor is arranged on the other axle. As the first motor and the third motor can realizecommon drive with the second motor, the power interruption problem when the second motor shifts is further solved; compared with single motor drive, multi-motor combined drive improves the dynamic performance of a vehicle; and finally, a synchronizer is selectively combined with one of gear sets of a second motor input shaft according to the instruction of a controller, and a clutch is further turned on or off according to the instruction of the controller, so that the optimal torque distribution among three motors is realized, and the economy is improved.

The invention relates to an active transmission device for a hybrid electric vehicle. The device comprises an axis fixed gear transmission, a transmission electronic control gear shift operating mechanism, a clutch and an electric operating mechanism thereof, an electronic control unit, a main driving motor and a synchronous mechanism, wherein the driving part of the clutch is connected with a vehicle engine flywheel, and the driven part of the clutch is connected with the front end of an input shaft of the axis fixed gear transmission; the main driving motor is connected with the synchronous mechanism; the synchronous mechanism and the tail end of the input shaft or an output shaft of the axis fixed gear transmission are separated from each other to cut off power or meshed with each other to synchronously rotate; and the electronic control unit controls the control unit of the main driving motor, the electronic control gear shift operating mechanism and the operating mechanism of the synchronous mechanism through electrical signals. The active transmission device for the hybrid electric vehicle solves the problem of power interruption in the transmission gear shift process; the synchronous mechanism has the advantages of compact structure, low cost, reliability and durability; the motor rotor structure reduces the rotational inertia of the motor, saves materials and improves the power density; and the device is convenient to assemble and disassemble.

The invention relates to the technical field of electric automobiles, in particular to a dual-motor power system used for speed changing. The system comprises a first driving motor and a second driving motor. The first driving motor and the second driving motor are connected with a first speed changer and a second speed changer respectively, the first speed changer and the second speed changer are connected with a first clutch and a second clutch respectively, and the first clutch and the second clutch are connected with a differential mechanism. The first driving motor, the second driving motor, the first speed changer, the second speed changer, the first clutch and the second clutch are controlled by a controller. Power interruption in gear shifting can be prevented, and a comfortable feeling is provided for a driver and passengers. The invention further provides an electric automobile and a gear shifting method. Power interruption in gear shifting can be prevented.

A technique for preventing power interruptions and extending backup power life is provided. The technique automatically prevents power interruptions in a line between a power source and a load. The technique can also extend the operating life of the power source. In one embodiment, a circuit for preventing power interruptions is provided. The circuit may include at least one arrays of capacitors, with the capacitors being arranged in parallel within an array, at least one switching elements configured to couple the at least one array of capacitors to a load, and a controller operatively coupled to the at least one switching element. The controller is configured to selectively drive the at least one switching element based on predetermined criteria.

The invention discloses a clutch hydraulic control system and a double-clutch speed changing box thereof. The double-clutch speed changing box comprises a first cooling control oil path and a second cooling control oil path, wherein the second cooling control oil path and a first double-clutch control oil path are connected in parallel. The second cooling control oil path comprises a clutch cooling electromagnetic valve, an oil supply port of the clutch cooling electromagnetic valve is communicated with an oil tank, an oil outlet of the clutch cooling electromagnetic valve is communicated with a clutch cooling oil path through a throttling valve at a first communication position, and the oil outlet of the clutch cooling electromagnetic valve is communicated with the clutch cooling oil path at a second communication position. According to the clutch hydraulic control system, two sources are arranged for cooling lubrication of clutches, another path of cooling channel is formed by additionally arranging the clutch cooling electromagnetic valve on the basis that only a cooling slide valve is used traditionally, so that the lubrication of the clutches is ensured to the maximum degree, the clutches are cooled in time, and the problem of power interruption caused by the excessively high temperature of the clutches is solved.

The invention discloses electric leakage detection equipment and a detection method thereof, which belong to the field of power systems. The electric leakage detection equipment comprises a power conversion circuit, a balance detection circuit, an analog-to-digital converter, a controller, N driving circuits, N energy storage circuits and N pairs of output ports, wherein the N driving circuits, the N energy storage circuits and the N pairs of output ports are in one-to-one correspondence, and the N is greater than or equal to 1; an output end of the power conversion circuit is connected with the balance detection circuit, and the balance detection circuit is connected with an input end of the analog-to-digital converter and first input ends of the N energy storage circuits; an output end of the analog-to-digital converter is connected with an input end of the controller, an output end of the controller is connected with input ends of the N driving circuits, and output ends of the N driving circuits are connected with second input ends of the N energy storage circuits in a corresponding manner. The electric leakage detection equipment performs electric leakage detection directly by means of an operating voltage, is small in overall size and high in power conversion efficiency, and can increase accuracy of determining an electric leakage fault port.

A technique for preventing power interruptions and extending backup power life is provided. The technique automatically prevents power interruptions in a line between a power source and a load. The technique can also extend the operating life of the power source. In one embodiment, a circuit for preventing power interruptions is provided. The circuit may include at least one arrays of capacitors, with the capacitors being arranged in parallel within an array, at least one switching elements configured to couple the at least one array of capacitors to a load, and a controller operatively coupled to the at least one switching element. The controller is configured to selectively drive the at least one switching element based on predetermined criteria.

A vehicular power supply system is provided with: a power supply control unit for supplying a power packet from a power packet mixer to power packet routers in response to a power distribution request from the power packet routers; and an allocation unit for allocating priorities to a plurality of loads. The power supply control unit restricts power supply to a load having a low priority when the demand-supply relationship of power satisfies a predetermined condition.

The invention relates to an electric car slipping working condition initiative torsion-decreasing strategy which includes five steps. The step one, a speed difference is calculated and filtering processing is performed; the step two, estimate of a speed difference standard is performed; the step three, conditions of entering and exiting are judged; the step four, a torsion treatment strategy is initiated in slipping working condition; and step five, a torsion safety treatment strategy is initiated. In the working conditions of rainwater road surface, snowfield road surface, glaze ice road surface, tire suspending in midair and the like which can cause tire slipping, when the average speed difference value exceeds the preset speed difference value, the executing torsion uses the strategy offar below the request torsion, and the problem that momentary discharge can cause overcurrent of a motor to lead to power failure can be solved.

The invention provides a driving device of a hybrid electric vehicle and a control method thereof, which comprises an engine, a single clutch, an electronic pump and a single clutch hydraulic controlmodule, a motor integrated with the single clutch, and a double clutch drive system. The single clutch external tooth hub is connected with the engine output shaft, the electronic pump, the single clutch hydraulic control module and the single clutch external tooth hub are connected in turn through the oil circuit, and pressure oil of the electronic pump is allocated to the oil passage of the single clutch through the single clutch hydraulic control module. The input shaft of the motor and the inner teeth of the single clutch are connected. The double clutch drive system is connected with theoutput shaft of the motor. The driving device of the hybrid electric vehicle and the control method thereof realizes fast start of the engine by independent control of the single clutch, and optimizesthe control strategy in the process of torque coupling and decoupling. It makes the engine and motor power switch and intervene avoid impact and power interruption, thereby optimizing the driving performance.

A method for operating a power transmission to produce gear ratio changes includes driveably connecting the transmission input and output in the off-going gear through a friction clutch and primary power path, establishing a potential drive connection between the input and output through a secondary power path, releasing the friction clutch, driveably connecting the input and output through the secondary power path, establishing a potential drive connection between the input and output through the primary power path in the oncoming gear, reapplying the friction clutch, driveably disconnecting the input and output through the secondary power path, and driveably connecting the input and output in the oncoming gear ratio through the friction clutch and primary power path.

The invention discloses information equipment. The information equipment comprises a computer display screen, wherein a supporting seat is arranged at a lower side of the computer display screen, the top of the supporting seat is fixedly connected with the bottom of the display screen by a connection post, a socket is arranged at a right lower part of a rear side surface of the display screen, a port part is arranged in the socket, a connection end head is connected with the port part in a matching way and comprises an insertion part and a handheld part, the handheld part is fixed at the bottom of the insertion part, a placement groove is formed in an end surface of the top of the insertion part, a sensor is arranged in the placement groove, a first sliding cavity is formed in the insertion part below the placement groove, second sliding cavities are symmetrically formed in a left side and a right side of the first sliding cavity, a first hollow cavity is formed in one side, deviating from the first sliding cavity, of each second sliding cavity, first sliding blocks are arranged in the second sliding cavities, an inclined block is arranged at an inner side of the first sliding block and extends into the first sliding cavity, a locking block is arranged at an outer side of the first sliding block, penetrates through the first hollow cavity and penetrates through a wall body at an outer side of the insertion part, a screw rod is arranged in the first sliding cavity, and the bottom of the screw rod is connected with driver. The information equipment is simple in structure, is convenient to use and plug and automatic to control and lock, and is high in stability after being inserted, power interrupt caused by swinging or accident touch is prevented, and meanwhile, the service lifetime is prolonged.

The invention discloses a hybrid power assembly which comprises an engine, a motor, a gearbox and a gear shifting executing mechanism. The gearbox comprises a first input shaft, a second input shaft,an output shaft and an intermediate shaft, and the engine is connected to the first input shaft through a clutch; the first input shaft is fixedly connected with an input gear and a direct gear combination tooth, and the output shaft is fixedly connected with a motor direct-drive combination tooth and is sleeved with at least one shift gear; the direct gear combination tooth and gear combination teeth can be connected with the output shaft through corresponding synchronizers; a motor rotor shaft and the second input shaft are fixedly connected and sleeve the outer side of the output shaft; thesecond input shaft is sleeved with a coupling gear, and the second input shaft can be connected with and separated from the motor direct-drive combination tooth and a coupling gear combination tooththrough a sliding sleeve which is normally connected with the second input shaft; the transmission ratio of the coupling gear to a third gear of the intermediate shaft is larger than the transmissionratio of the input gear to a first gear of the intermediate shaft. The invention further discloses a gear shifting method of the hybrid power assembly.

The invention discloses a series-parallel type hybrid power car system based on an AMT and a control method. The system comprises a BSG motor, an engine, the AMT, a GMG motor, a drive axle, a hybrid control unit, a sub controller unit and a power battery. The output end of the BSG motor is connected with the input end of the engine, the output end of the engine is connected with the first input end of the AMT, the output end of the AMT is connected with the input end of the drive axle, the second input end of the AMT is connected with the output end of the GMG motor, the output end of the power battery is connected with the input end of the BSG motor and the input end of the GMG motor, the output end of the hybrid control unit is connected with the input end of the sub controller unit, andthe output end of the sub controller unit is connected with input ends of the BSG motor, the engine, the GMG motor and the power battery. According to the car system and the control method, power failures and insufficient electric amount in the vehicle gear shifting process can be overcome, a vehicle can be controlled to adapt to different working conditions, and running capacity of the vehicle is improved.

The invention provides an active early warning type external force damage prevention dangerous point management and control method of a power transmission and distribution line. The method comprises the following steps of S01, performing safety distance monitoring on an external force damage dangerous point near the power transmission and distribution line through an on-site comprehensive monitoring terminal; S02, establishing a danger source dynamic management library, and forming a regional external damage prevention danger source dynamic distribution diagram; S03, through an external forcedamage dangerous point management and control system, monitoring a working state of an inspector in real time; and S04, establishing a dynamic remote monitoring platform, and performing comprehensiveanalysis on the monitoring data information so as to perform pre-judgment and pre-control on an external damage accident of a key region. A frequency of external force damage accidents of the power line can be reduced, safe operation of a power grid is better maintained, and safe operation and an intelligent management level of the power transmission and distribution line are further improved.

The invention discloses a gear shifting intervention control method of a two-gear drive-by-wire automatic transmission of an electric car. According to the method, a D gear switching signal, a rotating speed signal n2 of a rotating speed sensor of a transmission output shaft, a rotating speed signal n1 of a rotating speed sensor of a motor and an opening signal alpha of a position sensor of an accelerator pedal are detected by an electronic control unit of the transmission, so that whether a first gear needs to be shifted to a second gear and the second gear needs to be shifted to the first gear is determined, and intervention control over the rotating speed of the motor is performed during gear shifting. For example, when the first gear needs to be shifted to the second gear, the target rotating speed of the motor for shifting the first gear to the second gear is determined according to a target rotating speed function of the motor for shifting the first gear to the second gear, the rotating speed of the motor is controlled to reach the target rotating speed of the motor for shifting the first gear to the second gear by the electronic control unit of the motor, and the intervention control over the upshifting process of the drive-by-wire automatic transmission is performed, so that stable upshifting of the drive-by-wire automatic transmission is realized.

The invention discloses a pure electric vehicle torque function safety monitoring method. The method is based on torque fault diagnosis, and vehicle driving safety is achieved and unnecessary power interruption is avoided by taking different countermeasures for faults causing different levels of motor torque safety. The invention further discloses a pure electric vehicle torque function safety monitoring system and a vehicle. Through the method and the system, driving safety of automatic driving (L3 level or above) of a pure electric vehicle is improved.