2results about How to "Avoid major security incidents" patented technology

The utility model relates to a gas quick connector technical field, concretely is a pipeline gas leakproof quick connector, include: the joint main part, the joint main part inside forms the fluid passage that communicates with each other, the upper joint of one end of the fluid passage of joint main part is connected, the upper joint is equipped with the outer thread, is used for through bolt connection external device, the lower joint of the other end of the fluid passage of joint main part is connected, the lower joint is equipped with the internal thread, the lateral communication mouth of the fluid passage of joint main part is connected the side joint, the observation window is the window that is made of transparent material, is embedded in the outer wall surface of joint main part, and with the fluid passage in the joint main part intercommunication.

This invention relates to a method for locating overvoltage / undervoltage faults in battery systems, belonging to the field of new energy vehicle technology. The method includes: real-time acquisition of battery system SOC, maximum cell voltage, minimum cell voltage, and total current; when an overvoltage alarm occurs in the battery system, fault location is performed: based on characteristic indicators and their corresponding set thresholds, it is determined whether the fault is due to individual cell damage, unreasonable control strategy, slow current limiting by the charging pile, secondary charging, sampling line problems, current feedback, circulating current, or active balancing; the process for determining each set threshold is as follows: based on a failure case library, a fault tree containing all causes of overvoltage faults is established to obtain training set data; the training set data is input into a decision tree classifier to obtain the characteristic indicators of each overvoltage fault cause and the corresponding set thresholds. This invention provides timely fault location in the event of an alarm, improving battery safety.