Abstract: A positioning system and method for a monorail train are disclosed. The system includes: a first beacon, laid on one side of an up-going rail; a second beacon, laid on one side of a down-going rail, the first beacon and the second beacon being laid asymmetrically; a first beacon antenna and a second beacon antenna, the first beacon antenna being provided at a front carriage of the monorail train, the second beacon antenna being provided at a rear carriage of the monorail train, and the first beacon antenna and the second beacon antenna being provided on two opposite sides of the monorail train; and a positioning device, configured to acquire beacon data read by the first beacon antenna and beacon data read by the second beacon antenna and to determine a running direction and position information of the monorail train according to the beacon data read by the first beacon antenna and the beacon data read by the second beacon antenna.

Abstract: A battery cover plate assembly, a cell, a battery module, a power battery and an electric vehicle are provided. The battery cover plate assembly includes a cover plate, a first pole, a second pole, a flipping member, a scored member, a first conductive member and a telescopic assembly. The second pole includes an upper pole and a lower pole spaced apart from each other. The flipping member is configured to turn over under the action of gas pressure inside the battery and push, by means of the telescopic assembly, the first conductive member to move to break a score, so as to electrically disconnect the upper pole from the lower pole.

Abstract: This application discloses a rotating mechanism for a display terminal and a vehicle having the same. The rotating mechanism includes: a mounting unit, a clutch unit, and a drive unit, the mounting unit being configured to mount a display terminal, the clutch unit including a first engaging portion and a second engaging portion, the first engaging portion being connected to the mounting unit, and the drive unit having a power output member capable of outputting torque, the power output member being detachably connected to the second engaging portion and capable of transmitting torque, and the first engaging portion and the second engaging portion being in power coupling connection.

Abstract: A current interrupt apparatus and a flipping member thereof, a battery cover plate assembly, a cell, a battery module, a power battery, and an electric vehicle are provided. The flipping member is to be electrically connected to a score member, and can act under an effect of air pressure to break a score on the score member so as to cut off the electrical connection to the score member. A first connection region to be electrically connected to the score member and a second connection region to be electrically connected to an outer electrode terminal of a battery are formed on the flipping member. A deformation cushion region is further formed on the flipping member. The deformation cushion region is disposed between the first connection region and the second connection region and around the first connection region.

Abstract: An apparatus includes a suspension system, a bogie frame with the same, and a rail vehicle. The suspension system includes a vehicle body connecting seat, an elastic component, a transverse damper and a vertical damper. The vehicle body connecting seat is positioned above the elastic component and is connected to the elastic component, and the transverse damper and the vertical damper are respectively hinged to the vehicle body connecting seat and are perpendicular to each other.

Abstract: A train door control method and system are provided. The train door control method includes: acquiring a first train identifier and a second train identifier when multiple trains park in a platform at the same time, a door of a first train to which the first train identifier belongs being to be opened at a current time point, and a second train to which the second train identifier belongs being a train arranged behind the first train, which enters the platform and parks in the platform; and controlling the opening and closing of the door of the first train and a door of the second train at different time points respectively according to the first train identifier and the second train identifier.

Abstract: A DC-DC converter includes: a first three-phase bridge module, a resonance module, a second three-phase bridge module, and a controller. The second three-phase bridge module is configured to: adjust frequency of an input signal of a battery module during discharging; and in a light load mode, the controller is configured to: control the first three-phase bridge module to switch to a two-phase bridge arm input or a one-phase bridge arm input and the second three-phase bridge module to switch to a two-phase bridge arm output, and control the second three-phase bridge module to switch to a two-phase bridge arm input or a one-phase bridge arm input and the first three-phase bridge module to switch to a two-phase bridge arm output during discharging, thereby reducing a switch loss in the light load mode.

Abstract: A train overspeed protection method includes: acquiring, when emergency braking is triggered for a train, an initial speed limit location point of each speed limit region among a preset number of speed limit regions, and a first speed limit value corresponding to each initial speed limit location point so as to obtain a plurality of first speed limit values; acquiring a current traveling location point of the train and a corresponding second speed limit value, and acquiring a current traveling speed of the train; determining a plurality of decelerations of the current traveling speed relative to each first speed limit value, selecting a deceleration satisfying a preset condition from the plurality of decelerations, and determining the initial speed limit location point corresponding to the deceleration satisfying the preset condition as a target speed limit location point; determining an emergency braking speed according to a relative deceleration of the second speed limit value relative to the first speed li

Abstract: The present disclosure provides a method for obtaining an area speed limit value. The method includes: mapping, to a coordinate system, a track section on a train running line in electronic map data; respectively storing, into a temporary speed limit information list and a constant speed limit information list in a one-to-one correspondence mode, speed limit data of a temporary speed limit and speed limit data of a constant speed limit of the train in the track section according to coordinates of the track section in the coordinate system; combining speed limit data in the temporary speed limit information list with speed limit data in the constant speed limit information list to obtain a strictest speed limit list of the train; and obtaining, by searching the strictest speed limit list, a strictest speed limit value of an area corresponding to a real-time coordinate position of the train.

Abstract: A speed reducer, a power system, a straddle-type rail train, and a rail transport system are disclosed. The speed reducer includes: a box body; a speed-reducing mechanism, disposed in the box body; and a support shaft, a first end of the support shaft being supported on the box body, and a second end of the support shaft being connected to a high-speed end of the speed-reducing mechanism. The speed reducer according to the present disclosure achieves a more stable connection between a drive shaft and a speed-reducing mechanism and a more stable power transmission.

Abstract: A traction mechanism, a bogie assembly and a straddle-type monorail vehicle are disclosed. The traction mechanism comprises: a traction component, comprising a traction connecting rod, a first crank and a transmission shaft, the traction connecting rod being suitable to be hinged to a bogie frame, a first end of the first crank being hinged to the traction connecting rod, a second end of the first crank being fixedly connected to the transmission shaft, and the transmission shaft being suitable to be rotatably connected to a vehicle body; and a traction crank, both ends of the traction crank being suitable to be respectively hinged to the bogie frame and the vehicle body, wherein the first end of the first crank is away from the traction crank. The traction mechanism of the present disclosure has a simple and compact structure, and a transmission path of a traction force is short.

Abstract: A method for selectively metallizing a surface of a ceramic substrate, a ceramic product and use of the ceramic product are provided.

Abstract: A folding-canopy main body used for a train through-passage includes an outward folding-canopy body and an inward folding-canopy body. The folding-canopy main body is vertically provided and extends along a front-back direction. The inward folding-canopy body is formed by connecting at least two pieces of internal canopy cloth which arch inwards to form a U shape along the front-back direction, the outward folding-canopy body is formed by connecting at least two pieces of external canopy cloth which arch outwards to form a U shape along the front-back direction, and the end portions of two adjacent pieces of internal canopy cloth and the end, portions of two adjacent pieces of external canopy cloth are all clamped and riveted by U-shaped parts.

Abstract: A locking device comprising: first and second flanges; and first and second flange locking structures. The first and second flange locking structures are used for selectively locking the first flange and the second flange. Each flange locking structure comprises: a synchronising ring and a driving assembly. The synchronising ring is able to slide relative to the corresponding flange; and the drive assembly is capable of selectively pushing the synchronising ring to slide along the axial direction of the corresponding flange from an unlocked position to a locked position.

Abstract: A CANopen-based train network data transmission method includes: switching, when a first CAN channel of a first slave node is detected as faulty, to a second CAN channel of the first slave node to receive over a standby network a heartbeat packet and data transmitted by another relevant node; monitoring, if no heartbeat packet transmitted by a relevant second slave node is received from the standby network within a preset heartbeat period, by an active master node, in an active network, a heartbeat packet and data transmitted by the second slave node; receiving, through the second CAN channel, the heartbeat packet and the data of the second slave node forwarded by the active master node to the standby network when the active master node detects in the active network the heartbeat packet and the data transmitted by the second slave node through the first CAN channel.

Abstract: Provided is a method for calculating the SOH of a battery power pack. The method comprises the following steps: acquiring a charging curve of a cell of a battery power pack, and determining a current charging phase according to the charging curve, wherein the charging phase comprises a high voltage charging inflection point and a high voltage charging phase (S1); acquiring a battery pack power amount corresponding to the high voltage charging inflection point and a battery pack power amount corresponding to the high voltage charging phase (S2); calculating the remaining capacity of a cell according to the battery pack power amount corresponding to the high voltage charging inflection point and the battery pack power amount corresponding to the high voltage charging phase (S3); and calculating the SOH of the cell according to the remaining capacity (S4).

Abstract: A battery unit includes a battery and an insulation film, the battery includes a battery housing, a battery core disposed inside the battery housing, and a battery cover plate disposed on an end portion of the battery housing; the insulation film is coated on at least one side face of the battery housing, the insulation films on two adjacent battery units are bonded to each other in the preset direction to connect the plurality of battery units together; and the insulation film includes an extension portion, where the extension portion is formed by a top portion of the insulation film which protrudes from the battery cover plate and extends upward, the top plate is disposed on an upper side of the battery unit, a groove is provided on a lower side of the top panel, and at least part of the extension portion is accommodated in the groove.

Abstract: A transmission, a power-driven system, and a vehicle are provided. The transmission includes a first planetary gear mechanism, a second planetary gear mechanism, an input shaft, an intermediate shaft, a first synchronizer, and a second synchronizer. A second planet carrier in the second planetary gear mechanism is connected to an output end of the transmission. The input shaft is connected to a first sun gear. A first ring gear is connected to the intermediate shaft. The intermediate shaft is connected to a second sun gear. The first synchronizer secures a first planet carrier to a housing of the transmission or connects the first planet carrier to the first sun gear. The second synchronizer secures a second ring gear to the housing of the transmission or connects the second ring gear to the first ring gear.

Abstract: A winding method for a stator module applicable to a motor having z slots, 2p poles, and m phases. The stator module includes a stator core and a winding coil. The winding coil is made of a flat wire. The winding method includes: forwardly winding some stator slots by means of the arrangement and connection of multiple U-shaped conductor sections, and then reversely winding the stator slots; afterwards, forwardly winding the remaining stator slots, and then reversely winding the stator slots; and cycling in this way.