3results about How to "Save test resources" patented technology

This application provides a method, apparatus, electronic device, and storage medium for predicting battery heat generation power. It acquires multiple first average heat generation powers of the battery when charged and discharged at different rates at a target temperature, and multiple second average heat generation powers of the battery when charged and discharged at the target rate at different temperatures. The target temperature includes the middle temperature of the battery's operating temperature range, and the target rate includes the rate at the middle position of the battery's rate range and the rate at the beginning and / or end positions. The multiple first average heat generation powers and multiple second average heat generation powers are fitted to obtain a relationship between the heat generation power of the battery when charged and discharged at different rates at different temperatures. Based on the obtained heat generation power relationship, the heat generation power of the battery when charged and discharged at any rate at any temperature is determined. This application can save testing time and resources while ensuring prediction accuracy.

The application discloses a power battery alternating current charging time calculation method and device, medium and electronic equipment, and belongs to the technical field of batteries. The power battery alternating current charging time calculation method comprises the following steps: acquiring an alternating current charging voltage change curve of a battery cell in a power battery; determining the charging power of the power battery according to the power of a high-voltage accessory and a low-voltage accessory assembly in a vehicle provided with the power battery; determining the relationship between the charging current and the charging time of the power battery according to the alternating current charging voltage change curve of the battery cell and the charging power; and determining the alternating current charging time of the power battery according to the target SOC change amount of the power battery and the relationship between the charging current and the charging time. The embodiment of the application can realize quantitative measurement of the alternating current charging time of the power battery in the whole available SOC range.

This invention provides an IGBT testing line, comprising a testing machine and a first side thereof, sequentially arranged from one end to the other, a loading and unloading mechanism, a front multi-functional testing area, a preheating plate, and a front testing module. The first side of the testing machine also sequentially arranges a rear testing module, a rear multi-functional testing area, and a multi-layer material distribution mechanism, with the rear testing module symmetrically arranged to the front, rear, and front multi-functional testing areas. A fast passage is provided between the front and rear multi-functional testing areas. The second side of the testing machine sequentially arranges a cooling plate and an arch testing module. Material transport or skip-station testing on the entire line is completed by a handling arm. The IGBT testing line of this invention requires only software operation and can quickly achieve skip-station testing without requiring personnel to modify the equipment, and does not affect production efficiency.