Patent ID: 8648489

Claim:
A power supply control device for a vehicle, comprising: a plurality of electrical loadings installed in the vehicle; a feeding part configured to supply electric power to the electrical loadings; and a presumption part configured to obtain a result of presumption by presuming an electrical power demand for operating the electrical loadings based on sign information for foreseeable operations of the electrical loadings after a designated time; wherein the feeding part is configured to adjust electrical power supply from the feeding part to each of the electrical loadings after the designated time based on the result of presumption by the presumption part, wherein, at one of the electrical loadings, electrical power consumption is generated at a time when a grace period passes after the electric power consumption is required, and wherein each of the electrical loadings is configured to compare its own grace period to a grace period of another one of the electrical loadings received via a communication line, and to generate electric power consumption when its own grace period is shorter than the grace period of the another one of the electrical loadings received via the communication line.