31results about How to "Ensure start" patented technology

A power control apparatus for a vehicle battery that includes a relay configured to interrupt or connect electric power supplied from the battery to a vehicle; current sensors configured to detect a battery discharging current supplied to a load of the vehicle through the relay, and a battery charging current introduced from an alternator of the vehicle. In addition, the apparatus includes a controller configured to output a control signal to execute an on / off drive of the relay based on detection values of the current sensors to control the electric power supplied from the battery to the vehicle. The relay, the current sensors, and the controller are mounted to the battery, and the current sensor includes a high current sensor having a substantially large current measurement range and a low current sensor having a substantially small current measurement range.

The invention discloses a two-dimensional supersonic inlet of an enclosed variable structure. The two-dimensional supersonic inlet comprises a machine body, an inlet and a combustor upper panel actuating device, wherein the machine body and a fixed compression plate are of an integral structure; a sector plate is connected with the fixed compression plate through a rotating shaft, and rotates, adjoining the side wall of the machine body, in a sector groove; a movable compression plate moves in a groove and is connected with a combustor upper panel through a rotating shaft; and the combustor upper panel actuating device drives the combustor upper panel to move up and down along a front chute and a rear chute which are formed in the inside wall of the machine body in the vertical direction. By adoption of the two-dimensional supersonic inlet, under the condition of ensuring that the inlet is sealed, the quality of airflow entering a combustor can be directly adjusted through changing the size of a compression angle of the inlet. The two-dimensional supersonic inlet of the enclosed variable structure realizes steady transition from low-Mach-number operation to high-Mach-number operation to reduce the aerodynamic resistance, and can be started up within a wide Mach number range to be in a good working state, thereby being improved in working efficiency and aerodynamic performance.

The invention discloses a diesel engine drag reduction starting device. The diesel engine drag reduction starting device comprises an electromagnetic clutch device and a control device, wherein the electromagnetic clutch device is connected between the free end of a crankshaft of a diesel engine and an accessory belt wheel and is used for controlling the transmission and disconnection of force between the crankshaft and the accessory belt wheel, the control device is used for controlling the electromagnetic clutch device, and the control device controls the electromagnetic clutch device to act, so that no force is transmitted between the crankshaft and the accessory belt wheel, and the non-starting stage of the diesel engine is controlled by the control device to reset the electromagneticclutch device to enable the transmission force between the crankshaft and the accessory belt wheel. According to the device, the resistance of partial accessories during starting of the diesel enginecan be reduced, the action of the electromagnetic clutch device is stable, the vibration influence is small, the large current of a storage battery can be prevented from being discharged, and the service life of the storage battery is prolonged.

The invention discloses a method for designing an inlet section of a fixed-geometry high-speed air inlet channel with an offset compression surface. The method comprises the steps of designing a waverider forebody and designing an air inlet channel, wherein the design of the waverider forebody is combined with an aircraft shape and an internal load condition, the outline of the waverider forebodyand the shock wave shape of the waverider forebody are set, and a cone-like three-dimensional curved surface shock wave is emitted by the aircraft forebody, and the design of the air inlet channel isthat the air inlet channel is determined to be of a double-air-inlet-channel structure on the basis of the outline of the waverider forebody, the shock waves emitted by the waverider forebody and theboundary layer displacement effect of all cross sections along the way, an air inlet channel lip captures incoming flow after the shock waves of the forebody, overflow windows are arranged on the twosides of the double-air-inlet-channel structure, and overflow capacity is improved. Through a flow field organization scheme of double-outer-side overflow, the integrated design of the hypersonic airinlet channel and the precursor is assisted, and the overflow amount can be correspondingly changed along with the change of Mach number.

The invention discloses a two-wheeled charging turbine cooler driven by an air dynamic pressure bearing. Air enters a charging turbine from an inlet of an air compressor, part of the air enters a bearing sleeve from a bearing air guide pipe serving as a guide pipe after entering the turbine to push a rotor to rotate, and the rotor is suspended on an air film by means of the air dynamic pressure effect in the bearing. At the moment that air enters the air compressor, part of the air enters a nozzle opening in a turbine volute through a bypass valve, and the rotor is assisted to be pushed to float rapidly. After the rotor floats, the bypass valve is automatically closed due to the fact that the turbine inlet pressure is higher than the compressor inlet pressure. The air dynamic pressure bearing is adopted for transmission, the rotating speed is high, the efficiency is high, the service life is long, compared with a conventional aviation turbine, no maintenance guarantee is needed in thelife cycle, and the two-wheeled charging turbine cooler is particularly suitable for air conditioner refrigeration of airplanes, helicopter environment control systems and pod environment control systems.

The invention provides a quadrupole high-speed synchronous motor damping structure solution, which not only solves the defect of poor starting performance of a quadrupole high-speed synchronous motorwithout a damping structure, but also solves the problem of high manufacturing and mounting cost of a traditional full-circle damping ring. The damping structure has the advantages of reducing the copper and iron consumption of the motor and improving the material utilization rate on the premise of ensuring the starting performance of the motor; and simple structure and convenient installation areachieved.

The invention discloses a rotor double-winding pole-changing asynchronous starting vernier motor which comprises a stator and a rotor. The stator comprises a stator core and stator windings. The rotorcomprises a rotor core, rotor damping windings, rotor starting windings and permanent magnets. The stator iron core is annular, and the inner ring surface of the stator iron core is provided with a plurality of open slots used as stator slots along the circumferential direction and used for accommodating stator windings. The rotor iron core is coaxially sleeved with the stator iron core. A plurality of rotor grooves are formed in the outer surface, opposite to the inner ring surface of the stator iron core, of the rotor iron core in the circumferential direction. The tops of the rotor groovesare used for containing rotor damping windings, and the bottoms of the rotor grooves are used for containing rotor starting windings. The plurality of permanent magnets are arranged in the rotor ironcore. According to the rotor double-winding variable-pole asynchronous starting vernier motor provided by the invention, the double-winding rotor is adopted, and a pole changing mode is utilized. Therefore, the electromagnetic torque exceeding a common asynchronous starting permanent magnet motor is output during steady-state operation. Meanwhile, the starting performance can be ensured, and thesteady-state performance can be also considered.

The invention discloses a wide-speed-range air inlet channel design method based on double-incidence bending shock waves. The method comprises the following steps of designing a double-incidence bending shock wave reference flow field based on the bending shock wave theory; designing an air inlet channel initial throat section molded line, and performing reverse flow streamline tracking in the reference flow field to obtain an initial air inlet channel compression molded surface; designing an air inlet channel isolation section outlet section, expanding an air inlet channel initial throat section in a double-S-bend form, and stretching in an equal-straight manner to obtain a three-dimensional inward-turning wide-speed-range air inlet channel isolation section; carrying out wall surface fairing and viscosity correction; taking the tail end of a first-stage compression molded surface of an air inlet channel as the rotating shaft position of a first-stage splitter plate, and taking the length of a second-stage compression molded surface as the length of the first-stage splitter plate; taking the position where the second derivative of an upper wall curve of the air inlet isolation section is zero, taking the position as the position of a second-stage splitter plate rotating shaft, and taking the length from the second-stage splitter plate rotating shaft to the air inlet channel initial throat section as the length of the second-stage splitter plate; and designing a discharge port area under the Mach number and a throat area under the Mach number. Expansion waves at the position of the rotating shaft can be eliminated; and performance requirements are met.

Provided is a control device for a belt-type continuously variable transmission, the control device being capable of suppressing a deterioration in fuel consumption. Compared to the friction coefficient ([mu]1) of an inside portion in the radial direction of each tapered surface of a driven pulley (7), the friction coefficient ([mu]2) of an outside portion is formed smaller, and the present invention is provided with a gear change range setting means for increasing the frequency of changing the change gear ratio using the inside portion when a gear change control mode for improving energy consumption efficiency is selected.

The invention discloses a rotor double-winding pole-changing asynchronous starting vernier motor which comprises a stator and a rotor. The stator comprises a stator core and stator windings. The rotorcomprises a rotor core, rotor damping windings, rotor starting windings and permanent magnets. The stator iron core is annular, and the inner ring surface of the stator iron core is provided with a plurality of open slots used as stator slots along the circumferential direction and used for accommodating stator windings. The rotor iron core is coaxially sleeved with the stator iron core. A plurality of rotor grooves are formed in the outer surface, opposite to the inner ring surface of the stator iron core, of the rotor iron core in the circumferential direction. The tops of the rotor groovesare used for containing rotor damping windings, and the bottoms of the rotor grooves are used for containing rotor starting windings. The plurality of permanent magnets are arranged in the rotor ironcore. According to the rotor double-winding variable-pole asynchronous starting vernier motor provided by the invention, the double-winding rotor is adopted, and a pole changing mode is utilized. Therefore, the electromagnetic torque exceeding a common asynchronous starting permanent magnet motor is output during steady-state operation. Meanwhile, the starting performance can be ensured, and thesteady-state performance can be also considered.

The present invention pertains to a transmission control device that is provided with a controller (12) and an oil pressure control circuit (11). The controller (12) determines whether a rotation sensor (42) has failed. The controller (12) and the oil pressure control circuit (11) variably control the gear ratio of a variator (20) and variably control the gear speed of an auxiliary transmission mechanism (30). If it is determined that a failure has occurred, the controller (12) and the oil pressure control circuit (11) fix the gear speed of the auxiliary transmission mechanism (30) at a first speed. If the gear speed of the auxiliary transmission mechanism (30) is a second speed when it is determined that a failure has occurred, the controller (12) and the oil pressure control circuit (11) fix the gear speed of the auxiliary transmission mechanism (30) at the first speed when the vehicle is stopped.

The invention discloses a surface-mounted asynchronous starter vernier motor, which includes a stator and a rotor; the stator includes a stator iron core and a stator winding, and the rotor includes a rotor iron core, a rotor damping winding, a rotor starting winding and a permanent magnet. The stator core is in the shape of a ring, and its inner ring surface is provided with a plurality of open slots as stator slots along the circumference to accommodate the stator winding; the rotor core is coaxially sleeved in the stator core, and its inner ring surface is opposite to the stator core. A plurality of rotor starting windings and a plurality of permanent magnets are uniformly and alternately distributed along the outer surface of the rotor along the circumferential direction, and the rotor damping winding is arranged under the rotor starting windings and the permanent magnets. The invention improves the mechanism of the asynchronous starting vernier motor, adopts surface-mounted alternating pole permanent magnets, and at the same time, the rotor adopts two sets of winding rotors, thereby alleviating the competition between the permanent magnets and rotor windings for the surface space of the rotor, and ensuring the starting The performance can also take into account the steady-state performance.

To provide a single-phase motor capable of preventing generation of such a situation that a torque becomes zero at driving and thereby securing an initiation property while improving an output of a motor at high-speed rotation and suppressing torque ripples.SOLUTION: A single-phase motor comprises: a rotor 1 that has a permanent magnet; and a stator 3 that consists of a stator core 30 arranged at an outer periphery of the rotor 1 via an air gap from the rotor 1 and having a pair of tooth parts 33 opposed to the rotor 1, and a coil 34 equipped around the tooth parts. A tooth angle, which is a mechanical angle of an angle region facing the rotor outer periphery at front ends of the tooth parts 33, is equal to or more than 40° and equal to or less than 120°. An angle ratio R(=θ1 / θ) of a progressing side angle θ1, which is obtained by dividing the angle region into two at a reference position by using a circumferential position of the tooth parts that is set from a rotor phase at the time when a reverse induction voltage becomes zero as a reference position, and the tooth angle θ, is equal to or more than 0.51.SELECTED DRAWING: Figure 1

The invention relates to a dual-battery management unit, which is characterized in that: the battery for starting is connected with electrical equipment related to power systems such as a starter, generator, ECU, and TCU; the battery for non-starting is connected with electrical equipment related to a comfort entertainment system; The starting battery and the non-starting battery are automatically connected and disconnected under the action of the dual battery management system, and can also be connected and disconnected manually in an emergency. The specific implementation methods are as follows: 1) Intelligent connection of two batteries 2) non-starting battery participates in starting; 3) mandatory connection / prohibited connection in emergency situations; 4) fault alarm for dual battery system. It eliminates the phenomenon of mutual discharge between the two batteries in the parking process of the vehicle powered by double battery parallel connection. At the same time, the non-starting battery is not affected by starting, and the audio and other entertainment equipment can still work normally during the engine starting process. Improved vehicle quality. The electrostatic current consumption of the starting battery is greatly reduced, and at the same time, the non-starting battery is not affected by starting.

An electronic timepiece comprises an analog circuit (160) driven by a power supply (22), a logic circuit (170) driven by a voltage regulator (161) forming part of the analog circuit, an oscillator circuit (51) driven by the voltage regulator, a power supply switch (162) for cutting off power to all the analog circuits except the voltage regulator during a time adjustment, and a clock cut gate (171) capable of blocking the clock signal from the oscillator circuit to the logic circuit. Since the oscillator circuit and the voltage regulator are only operated during a time adjustment, the timepiece consumes less power but is accurate in time indication.

The invention discloses a two-dimensional supersonic inlet of an enclosed variable structure. The two-dimensional supersonic inlet comprises a machine body, an inlet and a combustor upper panel actuating device, wherein the machine body and a fixed compression plate are of an integral structure; a sector plate is connected with the fixed compression plate through a rotating shaft, and rotates, adjoining the side wall of the machine body, in a sector groove; a movable compression plate moves in a groove and is connected with a combustor upper panel through a rotating shaft; and the combustor upper panel actuating device drives the combustor upper panel to move up and down along a front chute and a rear chute which are formed in the inside wall of the machine body in the vertical direction. By adoption of the two-dimensional supersonic inlet, under the condition of ensuring that the inlet is sealed, the quality of airflow entering a combustor can be directly adjusted through changing the size of a compression angle of the inlet. The two-dimensional supersonic inlet of the enclosed variable structure realizes steady transition from low-Mach-number operation to high-Mach-number operation to reduce the aerodynamic resistance, and can be started up within a wide Mach number range to be in a good working state, thereby being improved in working efficiency and aerodynamic performance.

The invention provides a drive device of a starting motor, which comprises a first coil (1), a second coil (2), a contact switch (4) and a power supply (6), wherein a positive electrode of the power supply (6) is connected with the first coil (1) and the second coil (2) and is grounded through the second coil (2). The drive device also comprises a voltage transformer (5) and a one-way conductive element (3), wherein the output end of the voltage transformer (5) is connected with one end of the contact switch (4); the other end of the contact switch (4) is connected with the starting motor; thepositive electrode of the power supply (6) is connected with the positive electrode of the one-way conductive element (3) through the first coil (1); the negative electrode of the one-way conductiveelement (3) is connected with the other end of the contact switch (4); and the one-way conductive element (3) only allows the current from the positive electrode to the negative electrode to pass through. By adopting the drive device of the starting motor, stable voltage can be supplied to the starting motor so that the starting motor can start an engine stably.

The invention provides a motor structure with integration of a sheath and a rotor lamination core. The motor structure comprises a rotor core formed by rotor laminations through lamination, a sheath with solid raindrop-shaped cage bars and a rotor end surface pressure plate. The sheath with raindrop-shaped solid cage bars is installed on the rotor lamination core. The shapes of the solid raindrop-shaped cage bars match the groove shapes of the rotor laminations. The rotor end surface pressure plate is embedded or inserted into the sheath at a high temperature. The starting performance of the motor can be raised. During the starting process, when the slip ratio is large, the solid raindrop-shaped sheath plays a leading role, the starting current is small, and the starting torque is large. During the operation process, when the slip ratio is small, the cast aluminum cage bars start to play a role, the equivalent resistance of the whole rotor is small, and the starting performance during the starting process is ensured. In addition, the provided motor structure can reduce the risk of separation of the rotor sheath and the lamination core caused by a centrifugal force effectively, and therefore the high-speed operation safety performance of the motor is raised.

The present invention provides a single-phase motor that can improve the startability of the motor when the output of the motor is improved at the time of high-speed rotation and the torque ripple issuppressed and the torque is zero when the drive is not generated. The single-phase motor includes: a rotor (1) having a permanent magnet; and a pair of teeth (33) disposed on the outer circumferenceof the rotor (1) with a gap from the rotor (1) and having a rotor (1), a stator core (30) and a stator (3) formed by a coil (34) provided around the tooth portion, wherein a mechanical angle of the angular portion of the front end of the tooth portion (33) facing the outer circumference of the rotor, that is, a tooth angle is 40D or more and 120D or less, the position in the circumferential direction of the tooth portion set by the rotor phase when the back-induction voltage is 0 is used as the reference position, and the traveling side angle Theta 1 and the tooth after the angle region is divided at the reference position are used. The angle ratio R (=Theta 1 / Theta) of the angle Theta is 0.51 or more.

The invention discloses an asynchronous starting vernier motor which comprises a stator and a rotor. The stator comprises a stator iron core and stator windings. The rotor comprises a rotor iron core,rotor damping windings, rotor starting windings and permanent magnets. The stator iron core is annular, and the inner ring surface of the stator iron core is provided with a plurality of open slots used as stator slots along the circumferential direction and used for accommodating stator windings. The rotor iron core is coaxially sleeved in the stator iron core. A plurality of rotor grooves are formed in the outer surface, opposite to the inner ring surface of the stator iron core, of the rotor iron core in the circumferential direction. The tops of the rotor grooves are used for containing rotor damping windings. The bottoms of the rotor grooves are used for containing rotor starting windings. A plurality of magnetic barriers are formed in the inner surface, opposite to the inner ring surface of the stator iron core, of the rotor iron core in the circumferential direction. The rotor iron core is divided into a magnetic bridge and an iron core part by the magnetic barriers. The plurality of permanent magnets are Spoke-shaped and are arranged right below the rotor grooves. Meanwhile, the permanent magnets are also arranged in the magnetic barriers at the inner side of the rotor. Bymeans of the rotor structure, the reduction of steady-state torque and starting torque due to the fact that the magnetic circuit is interrupted by the permanent magnets, can be avoided.

The invention provides a control device for a transmission, which is provided with a controller (12) and an oil pressure control circuit (11), the controller (12) judges a failure of a rotation sensor (42), and the controller (12) and the oil pressure control circuit (11) ) to variably control the gear ratio of the transmission mechanism (20), and to variably control the gear stage of the auxiliary transmission mechanism (30), and to fix the gear stage of the auxiliary transmission mechanism (30) at 1 when it is determined to be a failure If the gear stage of the subtransmission mechanism (30) when it is determined to be a failure is the second speed, the gear stage of the subtransmission mechanism (30) is fixed at the first speed during parking.

The invention discloses a dual-stator asynchronous starting cursor motor. The dual-stator asynchronous starting cursor motor comprises an external stator, an internal stator and a rotor, wherein the external stator comprises an external stator core and an external stator winding, the internal stator comprises an internal stator core, the rotor comprises a rotor core, a rotor damping winding, a rotor starting winding and permanent magnets, the external stator core is an annular shape and is used for accommodating the external stator winding, the rotor core coaxially sleeves the external statorcore, the top of a rotor groove is used for accommodating the rotor damping winding, the bottom of the rotor groove is used for accommodating the rotor starting winding, the internal stator core coaxially sleeves the external stator core, the difference of an internal stator groove in space is a mechanical angle of half groove pitch, and a plurality of permanent magnets are arranged in the rotor core. The dual-stator asynchronous starting cursor motor provided by the invention employs the two stators, the rotor employs two sets of rotor windings, the breakage of the permanent magnets on a magnetic path during starting and in a steady state can be prevented, the starting performance can be ensured, and the steady-state performance also can be compatible.

The invention discloses a two-wheel supercharged turbine cooler driven by an aerodynamic pressure bearing. The gas enters the supercharged turbine from the inlet of the compressor, and after entering the turbine, the gas enters the bearing sleeve through the bearing air-inducing pipe as a conduit to push the rotor. Rotating, the rotor is suspended on the air film by the aerodynamic pressure effect in the bearing. The moment the gas enters the compressor, part of the gas enters the nozzle opening on the turbine volute through the bypass valve, which assists in pushing the rotor to float quickly. After the rotor floats, the bypass valve will be automatically closed because the turbine inlet pressure is higher than the compressor inlet pressure. The invention adopts aerodynamic pressure bearing transmission, high speed, high efficiency, and long life. Compared with conventional aviation turbines, it does not require maintenance guarantees in the life cycle, and is especially suitable for air conditioning and refrigeration of aircraft, helicopter environmental control systems, and pod environmental control systems. .

The invention relates to a rolling element (3) for supporting a rolling element (1) for guiding and / or supporting a front-side or rear-side section of a laundry drum of a laundry treatment appliance designed as a front loader. The rolling body has at least one tyre part (4) which can be brought into contact with the laundry drum and at least one rim (5) which is arranged radially inward relative to the tyre part (4). In order to provide a cost-effective, reliable and space-saving support roller (1), at least one positively locking structure acting in the circumferential direction is formed between the tyre part (4) and the rim (5).

The invention provides a motor structure with integration of a sheath and a rotor lamination core. The motor structure comprises a rotor core formed by rotor laminations through lamination, a sheath with solid raindrop-shaped cage bars and a rotor end surface pressure plate. The sheath with raindrop-shaped solid cage bars is installed on the rotor lamination core. The shapes of the solid raindrop-shaped cage bars match the groove shapes of the rotor laminations. The rotor end surface pressure plate is embedded or inserted into the sheath at a high temperature. The starting performance of the motor can be raised. During the starting process, when the slip ratio is large, the solid raindrop-shaped sheath plays a leading role, the starting current is small, and the starting torque is large. During the operation process, when the slip ratio is small, the cast aluminum cage bars start to play a role, the equivalent resistance of the whole rotor is small, and the starting performance during the starting process is ensured. In addition, the provided motor structure can reduce the risk of separation of the rotor sheath and the lamination core caused by a centrifugal force effectively, and therefore the high-speed operation safety performance of the motor is raised.

The invention relates to vehicle power supply device.A battery disconnection relay 42 for switching on / off electric connection between a battery 21 and an AC generator 33 is provided for a circuit which interconnects the battery 21 and the AC generator 33, and the battery disconnection relay 42 is switched off by control means 55 when a kick pedal is used to start an engine. Upon starting of the engine, electric power generated by the AC generator is not supplied to the battery but can be supplied to parts of a fuel supply system and an ignition system, and a voltage necessary to activate the parts of the fuel supply system and the ignition system can be ensured. Accordingly, the starting performance of the engine can be improved irrespective of the state of the battery.