BATTERY STATE DETECTING DEVICE

摘要

PROBLEM TO BE SOLVED: To efficiently detect a battery state, by adjusting the timing of power generation by an alternator and detection of the battery state, by accurately and easily detecting a state of a lead-acid battery in traveling.

SOLUTION: While controlling charging voltage of the alternator 1 by a microcomputer 17, charge-discharge is performed to the lead-acid battery 5. A state of the lead-acid battery 5 is detected on the basis of an electric current value of the charge-discharge of the lead-acid battery 5 and a variation in terminal voltage of the lead-acid battery 5 before and after starting its charge-discharge in response to its timing. The state of the lead-acid battery 5 can be accurately and easily detected in response to the desired charge-discharge timing even in traveling.

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