METHOD FOR MONITORING AT LEAST ONE Y CAPACITANCE OF AN ONBOARD POWER

The invention relates to a method for monitoring at least one Y capacitor (2; 3), in which:-a determination is made of the at least one Y capacitance (2; 3) and a current on-board power supply voltage (UB) of the on-board power supply (1), where-the at least one Y capacitor (2; 3) in dependence on a current on-board supply voltage (UB) of the on-board supply (1) and on at least one Y capacitance (2; 3) is determined, and-the current capacitance value of the at least one Y capacitor (2; 3) is compared with a specified limit value, and a corresponding control signal is generated if the specified limit value is exceeded. The invention also relates to an on-board power supply (1). 本发明涉及一种用于监测车辆车载电源(1)的至少一个Y电容(2；3)的方法，其中，-确定所述至少一个Y电容(2；3)的当前电容值和该车载电源(1)的当前车载电源电压(UB)，其中，-所述至少一个Y电容(2；3)中的当前存储电能依据车载电源(1)的当前车载电源电压(UB)和所述车载电源(1)的至少一个Y电容(2；3)的当前电容值被确定，并且，-将所述至少一个Y电容(2；3)中的当前存储电能与规定极限值相比较，并且，-在超过规定极限值时生成相应的控制信号。本发明还涉及一种车载电源(1)。