BYD Patente

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A drive system and a vehicle are provided. The drive system includes a battery pack, a motor, and a controller. The battery pack includes two sub-battery packs connected in series, an A-wire connection terminal of the battery pack with one end connected to a middle of the two sub-battery packs, a positive direct current bus connection terminal of the battery pack, and a negative direct current bus connection terminal of the battery pack. One end of at least one phase of winding of the motor is connected to the other end of the A-wire connection terminal of the battery pack. The controller includes a power module, and the power module is separately connected to the other end of the at least one phase of winding, a positive electrode of the battery pack, and a negative electrode of the battery pack. The A-wire connection terminal of the battery pack is disposed between the positive direct current bus connection terminal of the battery pack and the negative direct current bus connection terminal of the battery pack.

Provided are a shell assembly for a battery, a battery, and a power device. The shell assembly includes: a shell, where a first mating surface and a first end surface are formed on an end portion of the shell, and an included angle between the first mating surface and the first end surface is α1; and a cover plate, where the cover plate covers the end portion of the shell and forms a first surface, a protruding portion protruding toward an interior of the shell is formed on the first surface, and a second mating surface adapted to abut against the first mating surface is formed on the protruding portion. An included angle between the second mating surface and the first surface is α2, and α1 and α2 satisfy: α1<90° and α2>90°.

A battery housing, a battery, and an electric device are provided. The battery housing includes a housing body and a cover plate. The housing body and the cover plate are fixedly connected by using a weld portion. The welding portion includes a first weld portion. The first weld portion is simultaneously connected to at least the cover plate and an outer surface of a sidewall of the housing body.

A vehicle, comprising a top frame longitudinal beam, which extends in the front-rear direction of a vehicle; a C pillar, wherein the top frame longitudinal beam is connected to an upper section of the C pillar, and a lower section of the C pillar is suitable for connecting to a door sill assembly; and a strut beam connected to the top frame longitudinal beam, wherein the strut beam is suitable for connecting to a rear longitudinal beam. The force-bearing capability of the vehicle is improved, thereby ensuring the structural integrity of the vehicle and the member safety.

Disclosed are a controller, an electric powertrain, a drive system, and a vehicle. The controller includes a housing, a power module, and an A-line conductive component. The power module and the A-line conductive component are disposed in the housing. The power module is separately connected to a first end of a three-phase winding of a motor, a positive electrode of a positive battery pack, and a negative electrode of the battery pack. A first end of the A-line conductive component is configured to connect to a midpoint between two sub-battery packs that are connected in series in the battery pack. A second end of the A-line conductive component is configured to connect to a second end of at least one phase winding of the motor.

A vehicle, comprising a battery pack. The battery pack comprises a case, a plurality of battery modules, and a conductive busbar. A power distribution cavity and a module cavity are defined in the case, and a total positive and a total negative are provided in the power distribution cavity. The plurality of battery modules are provided in the module cavity, the plurality of battery modules are provided with a first total connecting end, and the first total connecting end is connected to one of the total positive and the total negative. One end of the conductive busbar is connected to the plurality of battery modules, and the other end of the conductive busbar forms a second total connecting end. The second total connecting end of the conductive busbar extends into the power distribution cavity and is connected to the other one of the total positive and the total negative.

A navigation address determining method, a data processing apparatus, and a storage medium are provided. The method includes: identifying a first point of interest POI address in a navigation command; obtaining, based on the first POI address, N similar POI addresses and address types of the N similar POI addresses by retrieving an address data set, where each of the N similar POI addresses is similar to the first POI address, and N is an integer greater than or equal to 1; determining a first address type based on the address types of the N similar POI addresses; and determining a navigation address in a map based on the first POI address and the first address type.

An electric device is provided, including a battery pack. The battery pack includes a cooling plate for the battery pack. The cooling plate for the battery pack includes a plate body. A cooling flow channel and a confluence flow channel that are used for a coolant to flow are constructed on the plate body, the cooling flow channel forms a plurality of cooling regions on the plate body, the confluence flow channel forms a liquid inlet confluence region and a liquid outlet confluence region on the plate body, and each cooling region separately communicates with the liquid inlet confluence region and the liquid outlet confluence region. The plurality of cooling regions are connected in parallel to each other, a throttling structure is disposed in at least one of the plurality of cooling regions, and a quantity of throttling structures in the plurality of cooling regions progressively decreases from upstream to downstream of a flow direction of the coolant in the liquid inlet confluence region.

A battery pack (100) and an electric apparatus (1000). The battery pack (100) includes: a tray (10), in which an accommodating space (101) is formed; a separator, by means of which the accommodating space (101) is separated into at least two accommodating cavities and a clearance space is formed; at least two electrical assemblies, which are correspondingly disposed in the accommodating cavities; and an electrical connection assembly (20), which includes a first connecting member (210), a second connecting member (220) and an insulating adhesive member, wherein the first connecting member includes a first connecting end and a second connecting end, a second connecting member includes a third connecting end and a fourth connecting end, the second connecting end and the fourth connecting end are electrically connected and are coated with the insulating adhesive member, and the second connecting end, the fourth connecting end and the insulating adhesive member are accommodated in the clearance space.

An electric connection assembly (20), a battery pack (10) using the electric connection assembly (20), and an electric apparatus using the battery pack (10). The electric connection assembly (20) comprises: a first connecting member (210), which comprises a first connection end and a second connection end, wherein the first connection end is adapted to be electrically connected to a first electrical assembly; a second connecting member (220), which comprises a third connection end and a fourth connection end, wherein the third connection end is adapted to be electrically connected to a second electrical assembly; and a first housing (230), in which an accommodating cavity (250) is formed, wherein the accommodating cavity (250) has an opened side, the second connection end and the fourth connection end are adapted to be accommodated in the accommodating cavity (250) via the opened side and are in electric connection with each other, and the opened side is formed as an adhesive injection opening, which is configured to inject an insulating adhesive into the accommodating cavity so as to coat the second connection end and the fourth connection end.

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A vehicle (1000) that includes a battery pack (100) is provided. The battery pack (100) includes a tray (20), a plurality of battery cells (23), a reinforcing member (30), and a thermal insulation member (40). The tray (20) includes a bottom plate (22), a side beam (28), and at least one support beam (21), the bottom plate (22) and the side beam (28) enclose an accommodating cavity (27), and the support beam (21) is disposed in the accommodating cavity (27). The plurality of battery cells (23) are disposed in the tray (20). The reinforcing member (30) is disposed in the accommodating cavity (27), the reinforcing member (30) is disposed at a bottom of the bottom plate (22), the reinforcing member (30) includes a plurality of reinforcing portions (31), the plurality of reinforcing portions (31) are spaced apart, and at least one reinforcing portion (31) is located at the support beam (21) and extends to a position below the battery cell (23). At least one thermal insulation protrusion (41) is disposed on the thermal insulation member (40), and the thermal insulation protrusion (41) is located in a gap between two adjacent reinforcing portions (31).

Provided are a noise reduction method and apparatus, a terminal device, and a storage medium. The method includes: obtaining a target estimation coefficient, where the target estimation coefficient includes a real part value and an imaginary part value; then, generating, based on a target noise frequency, an original filtered signal whose frequency is the target noise frequency; and obtaining a target filtered signal based on the original filtered signal and the real part value and the imaginary part value in the target estimation coefficient, where the target filtered signal is used to control a speaker to output a filtered acoustic signal, to perform noise reduction on the target noise.

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A data transmission apparatus for a battery pack, a control method therefor, a battery system, and a device are provided. The battery pack (401) is provided with a battery management system. The data transmission apparatus (100) includes a battery component (11), a first power supply circuit (12), a second power supply circuit (13), and a data transmission module (14) configured to communicatively connect to the battery management system. The data transmission module (14) is configured to receive and transmit battery data sent by the battery management system. The first power supply circuit (12) is electrically connected between the battery component (11) and a power output connection end of the data transmission apparatus (100). The battery component (11) is connected to an input end of the second power supply circuit (13). An output end of the second power supply circuit (13) outputs a preset operating voltage of the data transmission apparatus (100).

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This disclosure provides a control unit, a powertrain, and a vehicle, relating to the field of vehicle technologies. The control unit includes a master chip, and at least two of a traction motor drive circuit, first and second DC-DC converter drive circuits, a transmission drive circuit, a throttle signal sampling circuit, an OBC drive circuit, and a BMS that are connected to the master chip. The traction motor drive circuit drives a traction motor to work. The first DC-DC converter drive circuit drives a first DC-DC converter to boost a voltage of a power battery. The transmission drive circuits drive a transmission solenoid to work. The throttle signal sampling circuit samples a throttle signal of a vehicle. The second DC-DC converter drive circuit drives a second DC-DC converter to buck a voltage of the power battery. The OBC drive circuit drives an OBC to work. The BMS monitors a status of the power battery.

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