3results about How to "Accelerate development cycle" patented technology

The invention provides a VOF-based numerical simulation method for a welding spot cavity of a vacuum vapor welding, which comprises the following steps: creating a BGA welding spot two-dimensional model and presetting a plurality of bubbles, simulating the flowing of a welding flux by adopting a laminar flow model, and simulating the interface of the welding flux and the bubbles by adopting a multiphase flow VOF model. A multi-area method quadrilateral mesh is adopted, and a UDF user-defined program is matched to simulate a flow field when bubbles escape from the solder; and meanwhile, by improving boundary condition setting, the calculation time is shortened, the calculation efficiency is improved, and the process that bubbles escape from the BGA welding spots in the welding process is rapidly and truly simulated.

This invention discloses a method and system for rapid prediction of battery pack collision intrusion based on multi-fidelity data fusion. First, a training dataset containing high-fidelity and low-fidelity samples is constructed through finite element simulations with different mesh accuracies. Then, a two-level fusion model is established using Gaussian process regression. The predictions of the low-fidelity model are used as correction features to guide the high-fidelity model in accurate learning. Furthermore, based on an ensemble learning and Bayesian optimization framework, an improvement expectation criterion that incorporates simulation cost trade-offs is used for adaptive sampling. The location and accuracy level of newly added samples are intelligently determined, and the model is continuously optimized through iterative updates. This invention effectively resolves the contradiction between high-precision prediction and high computational cost, significantly reducing data acquisition overhead while ensuring prediction accuracy, providing an efficient and reliable technical means for battery pack collision safety assessment and optimization design.

The application provides an MCU software integrated system for a DLP vehicle-mounted projection headlamp, a voltage monitoring module can measure and monitor input voltage; a hibernation wake-up control module can control the wake-up and hibernation of the DLP headlamp; a CAN communication module is used for realizing the interaction between a vehicle-mounted host and the DLP headlamp; a diagnosis DTC module comprises a diagnosis service sub-module and a DTC function sub-module; an IIC communication module can initialize and configure the register of a Deserializer chip and configure the light adjustment parameter of a DMD Controller module; and a light adjustment control center module can adjust the light of the DLP headlamp. The software functions of MCU1 and MCU2 are integrated on the same MCU, one MCU is reduced, the complexity of the system is reduced, and the cost of the system is saved.