Lead battery`s e.g. starter battery, electrolyte fill level determining method for motor vehicle, involves using capacitive sensor principle for qualitative and quantitative determination of electrolyte fill level of lead battery

摘要

The method involves using a capacitive sensor principle for qualitative and quantitative determination of an electrolyte fill level of a lead battery e.g. starter battery, in a motor vehicle. Individual cells of the battery are separately monitored. Sensor signals are wirelessly transferred by a radio frequency-identification system. The signals are directly transferred from the starter battery to a battery-monitoring-system. Metallic conductors e.g. wires, are arranged parallel to sensing electrodes (31, 32). An independent claim is also included for a system for implementing a method for determining an electrolyte fill level of a lead battery.