Abstract: A battery pack or the like configured to secure safety even when a thermal event occurs is disclosed. The battery pack according to an embodiment of the present disclosure includes a battery module having at least one battery cell, a control module connected to the battery module and configured to manage the battery module, and a fire extinguishing tank containing a fire extinguishing agent, coupled to at least one of the battery module and the control module, and having a rupture member configured to be ruptured under a predetermined condition so that the fire extinguishing agent comes out when the rupture member is ruptured.

Abstract: A battery pack includes a plurality of battery modules including module cases. Side surfaces of the module cases in which battery cells are accommodated face each other and a water injection hole is formed in a top surface of each of the module cases, and a fire extinguishing tank unit containing a fire extinguishing agent, located over the plurality of battery modules, and configured to supply the fire extinguishing agent only into a battery module in which a thermal event occurs from among the plurality of battery modules through the water injection holes.

Abstract: A battery pack includes a battery module having at least one battery cell, a control module connected to the battery module and configured to manage the battery module, a fire extinguishing tank containing a fire extinguishing agent and coupled to at least one of the battery module and the control module, and a side cover mounted on one side of the fire extinguishing tank and configured to guide electrical connection between the battery module and the control module.

Abstract: A battery pack ensures safety even when a thermal event occurs. A battery pack includes a battery module including one or more battery cells, a control module connected to the battery module to manage the battery module, and a fire extinguishing tank containing a fire extinguishing agent and coupled to at least one of the battery module and the control module.

Abstract: A rotor for an induction motor includes a rotor core having a hollow portion on a central portion wherein a shaft is coupled to the rotor core by being inserted through the hollow portion, a plurality of slots radially formed in the rotor core around a central axis of the shaft, a plurality of conductor bars coupled to the plurality of slots, and an end ring electrically connecting the plurality of conductor bars to each other, wherein the rotor core is thermally treated above Curie temperature to form a predetermined pattern on an outer circumference of the rotor core.

Abstract: A system and method for increasing the accuracy of time delay estimates of signals propagating through an environment. The system includes one or more sensors for receiving a plurality of signals, and a time delay estimator for measuring time delays between multiple pairs of signals. At least some of the multiple pairs of signals are received and measured at different points in time. The system further includes a data analyzer for analyzing time delay estimation data, for generating a statistical distribution of time delay estimates from the data, and for calculating a statistical estimate of time delay from the distribution. By increasing the number of signals employed by the system, the accuracy of the time delay estimation is increased. Further, by calculating the median or the mode of the statistical distribution, noise tolerance is improved.

Abstract: A system and method for increasing the accuracy of time delay estimates of signals propagating through an environment. The system includes one or more sensors for receiving a plurality of signals, and a time delay estimator for measuring time delays between multiple pairs of signals. At least some of the multiple pairs of signals are received and measured at different points in time. The system further includes a data analyzer for analyzing time delay estimation data, for generating a statistical distribution of time delay estimates from the data, and for calculating a statistical estimate of time delay from the distribution. By increasing the number of signals employed by the system, the accuracy of the time delay estimation is increased. Further, by calculating the median or the mode of the statistical distribution, noise tolerance is improved.