| 摘要 |
A method for determining the starting ability of the starter battery in a motor vehicle. The current and voltage of the storage battery are measured before starting is begun, shortly after starting is begun and at short intervals of time during the starting procedure. The current/voltage value pairs for each instant are used to calculate a resistance value and the quantity of charge drawn from the storage battery, and the rate of rise in the resistance values as a function of the quantity of charge drawn is used to derive a measure of the availability of the storage battery during the starting procedure. In particular, the gradient DELTARQ of the internal resistance as a function of the quantity of charge drawn and the turn-on internal resistance RE are stored in an arithmetical memory as a field as a function of the charge state or of the equivalent no-load voltage (UR) and the battery temperature and are compared with already recorded values or typical normal values.
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