Abstract: The present invention provides a vehicle power supply device that is capable of suppressing deterioration of a capacitor, shortening a precharging time, and suppressing power loss. An ECU estimates a polarization condition of a battery after a key has been switched OFF (IG SW_OFF), and opens a main relay after determining that the polarization condition of the battery has been eliminated. Thus, a voltage difference between a battery voltage and a capacitor voltage when the main relay is subsequently reconnected can be reduced. Hence, even when the capacity of the capacitor is increased, the time required for precharging can be shortened, and energy regeneration and so on can be realized efficiently within a short time period after switching the key ON. In this case, a situation in which the post-release capacitor voltage is maintained at an unnecessarily high level can be prevented even when charging polarization occurs in the battery, and as a result, deterioration of the capacitor can be suppressed.

Abstract: There is disclosed an apparatus for controlling a vehicle equipment device. The apparatus permits a reduction in the cost of manufacturing a vehicle in which the apparatus is installed. The apparatus also enables easy and precise switching between normal mode and delivery mode. The apparatus has a delivery decision unit and control change unit. The decision unit makes a decision as to whether the vehicle is in the delivery mode. If the decision unit determines that the vehicle is in the delivery mode, the control change unit changes the controlled contents of the vehicle equipment device from normal mode to delivery mode. The decision unit makes the aforementioned decision according to whether a backup power supply is applied to a clock device.

Abstract: There is disclosed an apparatus for controlling a vehicle equipment device. The apparatus permits a reduction in the cost of manufacturing a vehicle in which the apparatus is installed. The apparatus also enables easy and precise switching between normal mode and delivery mode. The apparatus has a delivery decision unit and control change unit. The decision unit makes a decision as to whether the vehicle is in the delivery mode. If the decision unit determines that the vehicle is in the delivery mode, the control change unit changes the controlled contents of the vehicle equipment device from normal mode to delivery mode. The decision unit makes the aforementioned decision according to whether a backup power supply is applied to a clock device.

Abstract: The present invention provides a vehicle power supply device that is capable of suppressing deterioration of a capacitor, shortening a precharging time, and suppressing power loss. An ECU estimates a polarization condition of a battery after a key has been switched OFF (IG SW_OFF), and opens a main relay after determining that the polarization condition of the battery has been eliminated. Thus, a voltage difference between a battery voltage and a capacitor voltage when the main relay is subsequently reconnected can be reduced. Hence, even when the capacity of the capacitor is increased, the time required for precharging can be shortened, and energy regeneration and so on can be realized efficiently within a short time period after switching the key ON. In this case, a situation in which the post-release capacitor voltage is maintained at an unnecessarily high level can be prevented even when charging polarization occurs in the battery, and as a result, deterioration of the capacitor can be suppressed.

Abstract: There is disclosed an apparatus for controlling a vehicle equipment device. The apparatus permits a reduction in the cost of manufacturing a vehicle in which the apparatus is installed. The apparatus also enables easy and precise switching between normal mode and delivery mode. The apparatus has a delivery decision unit and control change unit. The decision unit makes a decision as to whether the vehicle is in the delivery mode. If the decision unit determines that the vehicle is in the delivery mode, the control change unit changes the controlled contents of the vehicle equipment device from normal mode to delivery mode. The decision unit makes the aforementioned decision according to whether a backup power supply is applied to a clock device.