NOVELTY - The method (400) involves comparing (410) one of the two sensor signals of two sensors generating a combination signal and the selected sensor signal of one of two sensors generating another combination signal for generating a comparison signal. The comparison signal is evaluated (420) corresponding to a temperature condition of a temperature-sensitive system for monitoring the temperature of the temperature-sensitive system. The signal groups are provided with non common sensor signal. The sensor signals are assigned to signal groups.    USE - Method for monitoring temperature of a temperature-sensitive system (Claimed), such as batteries for electric vehicles, such as battery electric vehicle, plug-in hybrid electric vehicle, hybrid electric vehicle, electric bikes, scooters and motorcycles.    ADVANTAGE - The comparison signal is evaluated corresponding to a temperature condition of a temperature-sensitive system for monitoring the temperature of the temperature-sensitive system, and thus enables reducing evaluation complexity and data transfer overhead by evaluation of one combination signals to an large number of signals, and enhances performance, durability and safety of the temperature-sensitive system by measuring number of temperature measuring points using sensors, and ensures easily monitoring of unwanted temperature conditions by reducing temperature condition monitoring effort for providing accurate information on the evaluation of the system state, and ensures flexible, accurate and comprehensive temperature monitoring of a temperature-sensitive system by comparing the combined signals, and ensures reliable and quick detection of critical temperature of the temperature-sensitive element system by flexible and customizable temperature control.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a device for monitoring temperature of a temperature-sensitive system;    (2) a temperature-sensitive system comprises a temperature sensitive unit for representing sensor signals; and    (3) a computer program product with a program code.    DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of a temperature monitoring method.    Temperature monitoring method (400)    Comparing one of the two sensor signals of the two sensors and the selected sensor signal of one of two sensors (410)    Evaluating comparison signal corresponding to a temperature condition of a temperature-sensitive system (420)