104 results about "Traction motor" patented technology

A method includes receiving an indication of a charging current received at an on-board charging circuit of a vehicle from a source having a charging voltage. The on-board charging circuit includes a multi-phase traction motor, an inverter electrically coupled to the multi-phase traction motor and including an upper set of switching elements and a lower set of switching elements, and an energy storage device (ESD) electrically coupled to the inverter and having a storage voltage. The method includes determining whether the charging voltage is greater than or equal to the storage voltage. When the charging voltage is greater than or equal to the storage voltage, the method includes instructing at least one switching element in the upper set to operate in an on state and all of the switching elements in the lower set in an off state to cause fast charging of the ESD using the charging current.

A system and method for a hybrid electric axle. The hybrid electric axle system, in one example, includes an engine interface assembly with a one-way clutch that is rotationally coupled to an input shaft and a gear shaft in a gear set that is rotationally coupled to a differential and a dog clutch configured to selectively rotationally couple the input shaft and the gear shaft in the gear set. The hybrid electric axle system further includes an electric drive assembly including a traction motor that is rotationally coupled to a gear train. In the electric axle system, the gear train is rotationally coupled to the differential and the engine interface assembly and the electric drive assembly are packaged in an axle housing.

This invention discloses a concrete pool masonry device. The device includes an upper and lower lifting track, a left and right lateral moving track, a base, a traction motor, a mortar spreading device, a brick placing device, and a grouting device. The upper and lower lifting track has a grooved track, and the left and right lateral moving track is slidably connected to the grooved track of the upper and lower lifting track. The left and right lateral moving track has a moving track, and the base is slidably connected to the moving track of the left and right lateral moving track. The traction motor is fixedly connected to the base and slidably connected to the left and right lateral moving track. The mortar spreading device is fixedly connected to the base and the brick placing device. The base has an adjustment latch, and the grouting device is slidably connected to the adjustment latch of the base. This invention can automate the mortar spreading, brick placing, and grouting processes in masonry work, greatly improving masonry efficiency, reducing overall machine power consumption, ensuring a beautiful wall appearance, and having a simple structure for easy maintenance.

The application provides a traction motor health diagnosis method and system, the method comprising: obtaining a plurality of existing electrical signals of a traction motor from a traction control unit of a converter, and performing equal-angle resampling and data preprocessing on the plurality of existing electrical signals respectively to obtain a plurality of equal-angle dimensionless stationary signals irrelevant to rotation speed, working condition and load; performing demodulation on the plurality of equal-angle dimensionless stationary signals respectively and extracting a plurality of fault feature indexes by using a signal time-frequency analysis method; taking the plurality of fault feature indexes as inputs, applying a preset multiple-input multiple-output diagnosis model to perform fault diagnosis, and outputting a fault mode of the traction motor and a severity corresponding to the fault mode; and performing health management on the traction motor according to the plurality of fault feature indexes. The application can effectively eliminate diagnosis errors caused by PWM power supply harmonics, variable rotation speed and variable load transient processes, and improve the accuracy of non-stationary weak signal feature extraction and fault diagnosis.

Transmission device provided between a drive shaft (39) coupled to a drive wheel (19) and a motor shaft (55) coupled to a traction motor (16), wherein the transmission device (12) comprises the following: - a first engagement mechanism (60) for switching, using operating oil, a first power transmission path provided between the drive shaft (39) and the motor shaft (55) between a power transmission state and a power blocking state; - a second engagement mechanism (61) for switching, using operating oil, a second power transmission path provided between the drive shaft (39) and the motor shaft (55) between a power transmission state and a power blocking state; - an oil passage switching valve (83) provided between an oil pressure supply source (81) and the first and second engagement mechanisms (60, 61), and switching between a state in which operating oil is directed to the first engagement mechanism (60) and a state in which the operating oil is directed to the second engagement mechanism (61); and - an output control valve (82) provided between the oil pressure supply source (81) and the oil passage changeover valve (83) and switching between a connected state in which operating oil can pass from the oil pressure supply source (81) through the output control valve (82) to the oil passage changeover valve (83) and a blocked state in which the operating oil is blocked from the oil pressure supply source (81) to the oil passage changeover valve (83) and is discharged through the oil passage changeover valve (83); wherein the oil passage switching valve (83) is designed in such a way as to ensure that operating oil is not supplied to the first engagement mechanism (60) and the second engagement mechanism (61) simultaneously.

This utility model discloses a linkage unwinding system for a winding machine and newly added equipment, including an original winding controller, an original oscillating roller structure, an original unwinding mechanism, and an original traction mechanism. The original winding controller is communicatively connected to the controller of the newly added equipment, and the controller of the newly added equipment is connected to a new traction motor and a new traction encoder. This utility model enables communication between the original winding controller and the controller of the newly added equipment. The original unwinding motor and the new traction motor start synchronously, and the stopping of the new traction motor triggers the stopping of the original unwinding motor. Through the communication between the original winding controller and the controller of the newly added equipment, and the coordination between the new traction motor and the original winding motor, the linkage unwinding of the newly added equipment and the original winding equipment is achieved. This provides operational space for adding new process equipment without changing the layout and mechanical structure of the original winding machine, expanding the functions that the original winding machine can achieve, and reducing the production line modification cost.

The traction motor (10) features: a fluid-tight stator chamber (38) with a motor stator (30), wherein the stator chamber (38) has a fluid inlet (36) and a fluid outlet (37), and a rotor chamber (28) with a motor rotor (20), wherein the rotor chamber (28) has an air inlet (26) and an air outlet (27). The examination order (100) indicates: a test gas source (102) with a detectable test gas (103) which is fluidically connected to the stator chamber fluid inlet (36) via a fluidic inflow control (105), a switchable outlet valve (110) connected to the stator chamber fluid outlet (37), a test gas detector (112) that can detect the test gas (103) and that is fluidically connected to the rotor chamber air outlet (27), and a vacuum gas pump (114) through which rotor chamber air is pumped or drawn from the rotor chamber (28) through the rotor chamber air outlet (27) to the test gas detector (112), and an electronic test control (120) which is connected via signal links to the test gas inflow control (105), the stator chamber outlet valve (110) and the test gas detector (112). The electronic test control (120) generates the following process steps: Introducing the test gas (103) from the test gas source (102) into the stator chamber (38) such that the stator chamber gas pressure (p38) is at a defined above-atmospheric test gas overpressure (ps), and Activating the gas pump (114) and the test gas detector (112), thereby quantitatively detecting leakage test gas flowing into the air-filled rotor chamber (28).

This is a new upgraded production device for brush-shaped netting ropes used in straw checkerboard sand barriers. It includes a support frame with crossbeams connected to guide rails via multiple booms. Each guide rail has a straw mat input guide, a winding motor, and a winding hook at its rear. The winding motor is mounted on the guide rail via a traction frame. Each guide rail has a traction motor, a first winding roller, and a second winding roller at its front. The straw mat is manually pushed into the straw mat receiving trough, where it mixes with the upward and downward straw ropes at the pressure plate to form an initial brush-shaped netting rope, which is then hooked onto the winding hook. A button is used to operate the winding motor, rotating the initial brush-shaped netting rope. Simultaneously, the traction motor rotates, pulling the winding motor along the guide rails with the traction rope, ultimately forming the initial brush-shaped netting rope into a finished product of a specified length. This invention achieves automated and large-scale production of multi-stage brush-shaped netting ropes, significantly improving production efficiency and possessing great potential for widespread application.

This invention discloses an insulation detection method, device, and traction converter for the main circuit of a traction system, relating to the field of rail transit technology. The method includes: when in the insulation detection mode of the traction motor, blocking the pulses of non-target modules connected to the intermediate DC circuit and disconnecting the contactors of the non-isolated circuits connected to the intermediate DC circuit; using the grounding detection circuit in the intermediate DC circuit to obtain the insulation detection voltage information of the traction motor; and determining the insulation resistance to ground of the traction motor based on the insulation detection voltage information. This invention enables rapid and proactive identification and quantitative detection of the insulation resistance of the main circuit of the traction system while ensuring the existing functions of the traction converter remain unchanged. This allows for early identification of insulation performance degradation in the main circuit before a fault occurs, enabling vehicle users to accurately and reliably understand potential fault points in advance and take preventative maintenance measures, achieving intelligent early warning and autonomous real-time monitoring.

The application relates to a rotary traction device for a low-voltage small-cable stranding single-stranding machine, and belongs to the technical field of cable production equipment. The rotary traction device comprises a rack, a main rotary body rotatably arranged on the rack, a main rotary driving motor arranged at one end of the rack, and a main rotary transmission assembly for driving the main rotary body to rotate by the main rotary driving motor. A cable core traction mechanism and a cable core pressing mechanism are arranged on the main rotary body. A traction motor is arranged on the main rotary transmission assembly. A traction transmission assembly is arranged between the traction motor and the cable core traction mechanism. The traction motor drives the cable core traction mechanism to operate through the traction transmission assembly. The main rotary driving motor and the traction driving motor are fixed on the non-rotating rack, so that the problems of severe vibration, bearing overload, lubrication difficulty and dynamic balance caused by high-speed rotation of the motor with the main rotary body are completely eliminated. The main rotary body operation stability is greatly improved, the service life of bearings and other key components is prolonged, and the failure rate is fundamentally reduced.

This invention discloses an electric drive system and its control method for a new energy locomotive. The system includes a first DC bus, a second DC bus, a first power battery pack, a second power battery pack, a bidirectional voltage converter, and a controller. The first power battery pack is connected to a first traction motor and a first auxiliary load via the first DC bus. The second power battery pack is connected to a second traction motor and a second auxiliary load via the second DC bus. The bidirectional voltage converter is connected between the first DC bus and the second DC bus. The first DC bus is also connected to the first traction motor via a first traction inverter, and the second DC bus is also connected to the second traction motor via a second traction inverter. The controller is used to control the bidirectional voltage converter to perform power balancing, or to control the first traction inverter and the second traction inverter to perform power balancing, based on the locomotive's operating mode and the power information of the first and second power battery packs.

A method for controlling a power transmission device for a vehicle is disclosed, comprising a traction motor that transmits power to auxiliary drive wheels of the vehicle, comprising main and auxiliary drive wheels; a traction motor control unit that controls the traction motor; a housing that rotates when receiving the power generated by the traction motor; a first lateral gear connected to a first wheel of the auxiliary drive wheels; a second lateral gear connected to a second wheel of the auxiliary drive wheels; a pinion that meshes with the first lateral gear and the second lateral gear; a cage that supports the pinion and is configured to rotate relative to the housing; a disconnect actuator system (DAS) comprising a locking plate that is supported by the housing to engage with or disengage from the cage; and a DAS controller that controls the DAS.a limited-slip differential (LSD) comprising a drum that can be operationally connected to the housing, a first clutch disc coupled to the drum, a second clutch disc rotatable together with the second lateral gear, and a hydraulic device configured to engage and disengage the first clutch disc and the second clutch disc; and an LSD controller that controls the LSD, the method comprising performing sequence control for the traction motor control unit, the DAS controller, and the LSD controller of the power transmission device, thereby avoiding shocks or damage due to control conflicts.

Method for operating a range extender (4) of a motor vehicle (1), wherein the motor vehicle (1) comprises an electrical energy storage device (2) for storing electrical energy and a traction motor (3) designed as an electric machine, by means of which electrical energy stored in the energy storage device (2) can be used to generate a drive torque of the motor vehicle (1), wherein the motor vehicle (1) comprises a range extender (4) comprising an internal combustion engine (5) and a generator (6), wherein the energy storage device (2) can be charged by operating the internal combustion engine (5) using a fossil fuel and by using the generator (6), wherein a route plan (17) relating to a route (18) to be travelled when driving the motor vehicle (1) is determined or recorded before or at the beginning of an upcoming journey,where, based on the route plan (17), an operating plan (19) concerning the charging of the energy storage device (2) during the journey using the range extender (4) is determined, and the journey is carried out in accordance with the operating plan (19).

The scheme relates to the field of rail transit locomotive braking, and discloses a rail transit mechanical, electrical and hydraulic three-stage combined braking control method and a control system. The control method steps are as follows: a power split motor train unit including two or more than two power sources of internal combustion and electricity is used, one or several brakes of mechanical braking, electrical braking and hydraulic braking are selected according to the opening degree of the brake handle on the motor train unit, and the selected brake is used for braking. The control system includes a hydraulic retarder, a traction motor, a traction inverter, a mechanical transmission box, a clutch, an axle gear box, mechanical brake shoes, an energy storage device and a controller. Through the mechanical, electrical and hydraulic three-stage combined braking mode, the risk of braking failure caused by mechanical braking wear is further reduced, and the reliability and comfort of the braking system are improved.

Disclosed is a method of controlling a power transfer device for a vehicle, which includes a traction motor that transfers power to auxiliary drive wheels of the vehicle including main and auxiliary drive wheels; a traction motor control unit that controls the traction motor; a case that rotates upon receiving the power generated from the traction motor; a first side gear that is connected to a first wheel of the auxiliary drive wheels; a second side gear that is connected to a second wheel of the auxiliary drive wheels; a pinion gear that meshes with the first side gear and the second side gear; a cage that supports the pinion gear and is configured to rotate relative to the case; and a disconnect actuator system (DAS) that includes a lock plate supported by the case to come into contact with or be separated from the cage.

The present invention relates to a traction motor module, the module including a fixing shaft formed with a flange unit, a traction motor including a housing fixed at the fixing shaft, a stator fixed at an inner lateral wall of the housing, a rotation shaft arranged at a space formed by the stator and protruded from the housing, and a rotor including a magnet arranged between the stator and the rotation shaft, and a hub unit encompassing the traction motor in a cylindrical shape and rotatably coupled to the fixing shaft.

A battery electric vehicle includes: a traction motor; an inverter driving the motor; a first battery; an electric device running on electric power from the first battery; a detachable portable second battery; a first connecting and disconnecting device connecting and disconnecting a power line connected to the inverter and the first battery to and from each other; a second connecting and disconnecting device connecting and disconnecting the power line and the second battery to and from each other; and a control device controlling the first connecting and disconnecting device and the second connecting and disconnecting device. When a system startup instruction is given, the control device controls the first and second connecting and disconnecting devices so that the second battery is preferentially connected to the power line over the first battery when a temperature of the second battery is within an allowable temperature range of the second battery.

This invention belongs to the field of cable manufacturing technology, specifically relating to a quality control method and system for aerogel composite layer cables. The method includes: obtaining deviation sequences by acquiring outer diameter thickness, acoustic impedance, and current fluctuation data of the aerogel coating layer; obtaining standardized acoustic impedance and local acoustic impedance mean values ​​based on the acoustic impedance in the deviation sequences, and obtaining a pore distribution consistency index; obtaining outer diameter thickness, current fluctuation data, and acoustic impedance of the aerogel coating layer based on the deviation sequences; obtaining the local variance of traction tension based on the current fluctuation data, and obtaining a morphological deviation coefficient by combining characteristic aggregation terms, sensitivity adjustment order, and pore distribution consistency index; obtaining a quality health score based on the morphological deviation coefficient and pore distribution consistency index; and correcting the drive torque of the traction motor and adjusting the current value in the extruder die heating zone based on the quality health score and safety threshold, thereby reducing the blind spots in the quality assessment of aerogel composite layer cable production.

A system and method for an electric axle. The electric axle includes, in one example, a traction motor, an input planetary gear set arranged coaxial to the traction motor and including a sun gear rotationally coupled to the traction motor, a carrier including a first section coupled to multiple carrier shafts and a second section removably coupled to the multiple carrier shafts, and multiple planet gears rotationally mounted on the multiple carrier shafts. In the electric axle, the second section is rotationally coupled to a downstream component and the downstream component is arranged coaxial to the input planetary gear set.

This application relates to the field of alloy steel technology, specifically disclosing an ultra-high strength cast steel base for a high-speed railway permanent magnet traction motor and its preparation method. The ultra-high strength cast steel base for a high-speed railway permanent magnet traction motor is made from a chemical composition comprising the following weight percentages: C 0.15-0.25%, Si 0.2-0.5%, Mn 1.5-2.5%, Cr 0.5-1.25%, Ni 0.3-0.8%, Mo 0.2-0.5%, Al 0.02-0.06%, V 0.05-0.15%, Ti 0.02-0.08%, Nb 0.01-0.05%, P 0.01-0.02%, S 0.005-0.01%, with the balance being Fe. The ultra-high strength cast steel frame for the high-speed railway permanent magnet traction motor of this application achieves ultra-high strength while maintaining excellent plasticity and toughness and extremely high fatigue limit. This allows designers to use thinner and more optimized frame wall thickness while ensuring safety margin, thereby directly achieving the goal of lightweighting and enabling it to cope with the extreme vibration conditions of high-frequency and high-stress cycles of high-speed railway traction motors.

The utility model relates to a ventilation equipment field provides a kind of air duct assembly, air conditioning system and vehicle.Wind channel component includes air supply device, air supply device includes wind box, and wind box is opened with air inlet and air outlet, air inlet is provided with filter piece, and the position corresponding with air inlet in wind box is provided with air guide piece;Distribution box, fluid communication is in air outlet, and distribution box is provided with valve group, and distribution box includes first air duct, second air duct and third air duct, first air duct is fluid communication with the driver's room of vehicle, second air duct is fluid communication with the traction motor cabin of vehicle, third air duct is fluid communication with the passenger room of vehicle, and valve group is used to distribute the air intake of first air duct, second air duct and third air duct.The air duct assembly can make the airflow output of each air duct stable, avoid the air supply fluctuation caused by external wind pressure variation, ensure the comfort of driver's room, passenger room and the heat dissipation effect of traction motor cabin, improve the reliability of vehicle operation, simplify the structure of air duct assembly.

The utility model discloses a steel wire drawing device, including machine table, lubricating powder box, drawing die of cooling coil, tow and water pump and traction motor of industrial control board electric connection of tow cooling coil. Drawing die is the cylinder that is equipped with cooling coil to the outer periphery, realizes effective cooling through heat exchanger and water pump. The device still includes the self -adaptation adjustment steel wire spacing guide wheel, and the quick replacement of deformation section and sizing section in drawing die is pluggable, and realizes accurate control through servo electric push rod and pressure sensor. The cooperation of gas collecting hood and negative pressure fan can effectively collect and handle steel chips and waste gas, and simultaneously utilize magnet separation steel chips, reduce environmental pollution.

This utility model relates to the technical field of mobile motor bases, specifically a mobile motor base slide rail assembly, including a body assembly, four sets of sliding support mechanisms disposed within the body assembly, a rotation mechanism disposed on the equipment, a slide rail mechanism disposed on the rotation mechanism, and a shaft coupling mechanism disposed on the slide rail mechanism, wherein the four sets of sliding support mechanisms are disposed within the slide rail mechanism; the sliding support mechanism includes reinforcing bolts. By setting four sets of sliding support mechanisms at the bottom of the motor and installing the rotation mechanism at the equipment mounting location, after the slide rail mechanism is installed on the rotation mechanism, the entire hydraulically traction motor can be precisely finely adjusted outward from its inherent starting point. As the distance between the motor and the equipment increases, the shaft coupling mechanism can automatically eject the adapter end axially upward and effectively connect with the motor shaft, thereby improving the self-built effective drive system structure after the motor distance is finely adjusted.

A method of assisting in deceleration of a motor vehicle during a stop of the motor vehicle, the motor vehicle having a drivetrain including a traction motor, road wheels operably connected to the drivetrain, a friction brake configured to decelerate the road wheels, and an electronic controller, the method including detecting, via the electronic controller, a request to stop the vehicle. The method further includes commanding the traction motor to provide regenerative braking in response to the request to stop the vehicle. The method additionally includes determining a current vehicle operating state. The method further includes determining an amount of braking drag torque to be generated by the friction brake based on the current vehicle operating state. The method also includes commanding application of the determined amount of braking drag torque in parallel with the regenerative braking, thereby operating the friction brake as a mechanical drivetrain damper while assisting the regenerative braking to stop the motor vehicle.

This utility model discloses a rammed earth machine for building construction, relating to the field of building construction technology. The rammed earth machine includes a frame, a traction motor, and a U-shaped transmission plate. A support plate is fixedly installed on the top of the frame; a ramming plate is mounted on the support plate, and the traction motor drives the ramming plate to rise. Through the setting of a guide stabilizing rod, the ramming plate can be guided during its descent, thus determining the landing point of the ramming plate. This not only ensures the ramming plate lands accurately on the ramming location but also prevents the ramming plate from shifting and causing injury to workers, thereby improving the practicality of the device. Furthermore, the drive motor can move an L-shaped lifting plate, which, after movement, allows the ramming plate to be lifted via a U-shaped connecting plate. This design reduces worker involvement, lowers labor intensity, and further improves the safety of the device.

This relates to a driving dynamics system and a method for adjusting braking pressure. [Solution] The present invention relates to a driving dynamics system comprising at least one electric traction motor and at least one (first) electro-hydraulic pressure supply unit (BM1), wherein a primary control unit is communicably connected to a traction motor control unit for controlling the traction motor to execute steering and braking commands, and at least one of the hydraulically operable wheel brakes (RB1-RB4) is associated with a braking pressure regulating valve and outlet valve (AV1-AV4) in the form of a special solenoid valve (MV2k) particularly tensile resistant, wherein the driving dynamics system, in particular the primary control unit (M-ECU), is configured to selectively reduce pressure from at least one hydraulically operable wheel brake via the associated outlet valve or via the special solenoid valve (MV2k).