Method for identifying subtle quiescent current errors

• Main Authors: NEUDECKER RUPERT, KERLER DOMINIK
• Format: Patent
• Language: Chinese; English
• Published: 22.02.2017
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

The invention relates to a method and to a corresponding device for recognizing a faulty quiescent current behavior of a vehicle. The invention in particular relates to a method (400) for identifying a quiescent current threshold value (210) for an electrical on-board network of a vehicle (100). The method (400) comprises the identifying (401) of a plurality of quiescent current data sets (310) of a corresponding plurality of vehicles (100). According to the invention, a quiescent current data set (310) of a vehicle (100) comprises a quiescent current measured value of the vehicle (100) and a value for one or a plurality of vehicle parameters (301) of the vehicle (100). The method (400) furthermore comprises the identifying (402) of a plurality of classes (311, 312, 313) via cluster analysis of the plurality of quiescent current data sets (310). A class (311, 312, 313) comprises a vehicle group (331, 332, 333) which is described by one or a plurality of values for one or a plurality of vehicle parameters (301