BYD Patente

An early warning method and apparatus, a network device, an electric energy device, and a medium are provided, and relate to the field of battery technologies. The method includes: performing correlation analysis on sample production data and sample operation fault data of a preset subcomponent sample to obtain production fault correlation data; when the production fault correlation data is greater than a predetermined threshold, determining an early warning indicator based on the sample production data corresponding to the sample operation fault data; and then obtaining a historical production data feature of a subcomponent during production, and when the historical production data feature of the subcomponent matches the early warning indicator, issuing early warning prompt information.

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A power style adjustment method and apparatus, and a computer device relate to the field of vehicle technologies. The method includes: providing a power style adjustment interface, and displaying a power adjustment control on the power style adjustment interface; and displaying target power information through the power style adjustment interface in response to a power adjustment operation on the power adjustment control, where the target power information indicates a power output intensity of a vehicle.

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Disclosed are a thermal management system, a control method therefor, and a vehicle. The thermal management system includes a battery subsystem. The battery subsystem includes a plurality of heat exchange branches disposed in parallel. The heat exchange branches are configured to exchange heat with a battery. The plurality of heat exchange branches disposed in parallel include a pressure regulation sub-branch and a heat exchange sub-branch. The control method includes: obtaining a battery heating signal; and the thermal management system enters a preheating mode, where in the preheating mode, a total flow rate Q1 of the pressure regulation sub-branch is greater than a total flow rate Q2 of the heat exchange sub-branch.

This application discloses an adjustment method, apparatus, and system for a seat, and a vehicle. The method is applied to a vehicle, and the method includes: obtaining roll risk information representing a vehicle roll risk; and adjusting a seat side bolster based on the roll risk information. The roll risk information representing the vehicle roll risk is obtained, so that the seat side bolster is adjusted based on the roll risk information. This manner can accurately determine whether a body of an occupant is significantly rolled and whether the seat side bolster needs to provide support for the occupant, so that the seat side bolster is more accurately adjusted and seating comfort of the occupant is improved.

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A vehicle control method, a controller, and a vehicle. The control method comprises: when a locking instruction is received, first controlling a wheel-end decoupler of a differential of a vehicle to execute a coupling operation, and then controlling a differential lock of the differential to execute a locking operation. In this way, when a differential lock performs locking, a wheel-end decoupler has performed coupling in advance, such that the problem of a locking failure caused by executing a locking operation when a wheel end is in an uncoupled state is avoided.

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Provided are a control method and apparatus for a four-wheel drive vehicle, and a vehicle. The method includes: if an auxiliary drive of the four-wheel drive vehicle meets a first forced coupling condition, controlling a wheel-end decoupler of the auxiliary drive to switch from a disengaged state to an engaged state, where the first forced coupling condition includes: A vehicle speed of the four-wheel drive vehicle is less than or equal to a first target vehicle speed, and the wheel-end decoupler is in a disengaged state. In the foregoing technical solution, when the vehicle speed of the vehicle is less than or equal to the first target vehicle speed and the wheel-end decoupler of the auxiliary drive of the four-wheel drive vehicle is in a disengaged state, the wheel-end decoupler of the auxiliary drive is controlled to switch from a disengaged state to an engaged state.

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A vehicle energy recovery method and apparatus are applied to the field of vehicles. After determining a sliding feedback torque of a vehicle in a current operating condition and a maximum allowable feedback torque of the vehicle, a vehicle control unit can perform energy recovery based on a minimum feedback torque between the maximum allowable feedback torque and the sliding feedback torque.

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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 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.

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 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.