| 摘要 |
Method for recharging a chargeable battery (1) for a motor vehicle, a working machine, a motor boat or similar. As charging voltage the output voltage from a charging generator (2) connected to the battery (1) is used, where the output voltage is variable by means of controlling the field of the generator (2). The charging takes place by means of repeated charging cycles each of which consists of a charging period and a test period when the battery (1) is loaded and the charging from the generator (2) to the battery is disconnected. The value of the charging voltage during a charging period is decided regarding the test result during the nearest previous test period. The invention is characterized in that the battery voltage is compared to a predecided voltage during a test period. If the comparison shows that the battery voltage is less than the pre-decided voltage or sinks below this voltage during the test period, the charging of the battery during the following charging period takes place at a charging voltage which is so high that it means rapid charging of the battery (1) by means of controlling the output voltage of the generator (2). If the comparison shows that the battery voltage is higher than the predecided voltage the charging during the following charging period takes place at a charging voltage which means a compensating charging of the battery (1). During the later part of the charging period, just before the test period, the charging always takes place at a charging voltage referring to the compensating charge. |
