| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a system used for preventing a battery from overdischarge and capable of positively preventing the battery from the overdischarge, and considering a case of a dark current load. SOLUTION: This system for preventing a battery from overdischarge is constituted by being provided with: a battery voltage detecting means 31; a first and a second threshold voltage memory means 34a, 34b, a usage state detecting means 32 for detecting the usage state of a vehicle; an engine stop detecting means 33; a voltage comparing means 35 for reading the threshold voltage memorized on the first or the second threshold voltage memory means in accordance with the usage state of the vehicle upon detecting the engine stop by means of the engine stop detecting means 33 and comparing the threshold voltage with the battery voltage from the battery voltage detecting means 31; and a power-supplying stop means 36 for controlling a power line opening and closing means to stop the supply of the power to entire loads including a dark current load upon determining the presence of the battery voltage which is below the threshold voltage.</p> |
