Patent ID: 8669673
Filing Date: 2014-03-11
Classification: B62D,H02J

Abstract:
1. A power supply control apparatus for controlling a primary power supply apparatus; a step-up circuit which steps up an output voltage of the primary power supply apparatus and outputs the stepped up voltage to a drive circuit for an electric actuator; and a secondary power supply apparatus which is connected in parallel to a line between the step-up circuit and the drive circuit, into which electric power output from the step-up circuit is charged, and which supplements the supply of electric power to the drive circuit while using the charged electric power, the power supply control apparatus comprising: charged amount detection means for detecting an amount of electricity charged into the secondary power supply apparatus; and charge/discharge control means for controlling charging and discharging of the secondary power supply apparatus by controlling the step-up circuit to adjust a magnitude of the stepped-up voltage output therefrom on the basis of the detected charged amount and a target charged amount, wherein, when the detected charged amount is less than the target charged amount and a power consumption of the drive circuit is less than an available electric power output of the step-up circuit, the charge/discharge control means controls the step-up circuit to adjust the magnitude of the stepped-up voltage such that the stepped-up voltage becomes higher than a power supply voltage of the secondary power supply apparatus, and when the detected charged amount is less than the target charged amount and a power consumption of the drive circuit is equal to or greater than an available electric power output of the step-up circuit, the charge/discharge control means controls the step-up circuit to adjust the magnitude of the stepped-up voltage such that the stepped-up voltage becomes equal to the power supply voltage of the secondary power supply apparatus.