| 摘要 |
A charge control device that controls a state of charging to a storage section that stores electric power supplied from a power source and supplies the stored electric power to a load. The charge control device includes a voltage monitoring section which, if the storage section has its inter-terminal voltage being higher than or equal to a predetermined upper limit voltage, determines that the storage section is on a full charge, and which, if the storage section has its inter-terminal voltage being lower than or equal to a predetermined lower limit voltage which is lower than the predetermined upper limit voltage, determines that the storage section needs to be charged. |
| 主权项 |
1. A charge control device comprising:
a storage section that stores electric power supplied from a power source and supplies the stored electric power to a load; a voltage monitoring section which, if the storage section has its inter-terminal voltage being higher than or equal to a predetermined upper limit voltage, determines that the storage section is on a full charge, and which, if the storage section has its inter-terminal voltage being lower than or equal to a predetermined lower limit voltage which is lower than the predetermined upper limit voltage, determines that the storage section needs to be charged; a charge control section that controls charging to the storage section in accordance with the inter-terminal voltage of the storage section, the charge control device serving to control a state of charging to the storage section,
if the inter-terminal voltage of the storage section becomes less than or equal to the predetermined lower limit voltage due to a voltage drop caused in the storage section due to a resistance component and a load current in the storage section when the load is being driven by the electric power supplied from the storage section and the voltage monitoring section therefore determines that the storage section needs to be charged, the charge control section, after a predetermined period has passed, starts charging from the power source to the storage section so that the inter-terminal voltage of the storage section becomes higher than or equal to the predetermined upper limit voltage, wherein the load carries out a predetermined operation composed of a single action or plural actions when supplied with the electric power from the storage section; and a difference between the predetermined upper limit voltage and the predetermined lower limit voltage is set so that the inter-terminal voltage of the storage section changes from the predetermined upper limit voltage to the predetermined lower limit voltage or lower due to a voltage drop caused in the storage section while the load is carrying out the predetermined operation, the charge control device further comprising: a forced drive section that forces the load to carry out a predetermined forced operation other than the predetermined operation so that the load is forced to consume more electric current than it does during the predetermined operation, wherein while the load is carrying out the predetermined operation, if the inter-terminal voltage of the storage section becomes less than or equal to the predetermined lower limit voltage due to a voltage drop caused in the storage section when the forced drive section forces the load to carry out the predetermined forced operation, the charge control section carries out charging from the power source to the storage section so that the inter-terminal voltage of the storage section becomes higher than or equal to the predetermined upper limit voltage. |
