SYSTEM AND METHOD FOR COMPARING AND VERIFYING TEMPERATURE SENSORS WITH EACH OTHER BMS CONTAINING A SYSTEM FOR COMPARING AND VERIFYING TEMPERATURE SENSORS WITH EACH OTHER

摘要

The present invention relates to a comparison verification system of a temperature sensor and a comparison verification method, a battery management system including the comparison verification system of the temperature sensor. After acquiring a temperature sensing value from two or more temperature sensors connected to a battery, a voltage for each temperature sensing value is compared with each other. Then, when a voltage difference occurs, the temperature sensing value sensed through the temperature sensor where the voltage difference is generated through a P-channel FET is blocked from being transmitted to a monitoring IC. Therefore, it is possible to determine whether or not the two or more temperature sensors perform the same level of sensing capability. In particular, only one temperature sensing value can be transmitted to the monitoring IC through the monitoring IC and a single input/output port, thereby being able to eliminate a shortage phenomenon of the input/output port.