Patent ID: 8676401

Claim:
A vehicle door control system comprising: a door control apparatus mounted on a vehicle having a secondary battery, which stores electric energy as drive power and is chargeable by an external electric power source provided outside the vehicle; a mobile terminal configured to communicate with the door control apparatus; and a door manipulation unit provided on the mobile terminal or the vehicle to accept door lock manipulation by a user, the mobile terminal including a mobile radio unit, a mobile notification unit and a mobile control unit, the mobile radio unit being configured to perform radio communications with the door control apparatus, the mobile notification unit being configured to provide notification, and the mobile control unit being configured to control the mobile radio unit and the mobile notification unit, the door control apparatus including an in-vehicle radio unit and an in-vehicle control unit, the in-vehicle radio unit being configured to perform radio communications with the mobile unit, and the in-vehicle control unit being configured to control the in-vehicle radio unit, the mobile control unit being configured to control the mobile radio unit to transmit a predetermined door lock signal to the vehicle door control apparatus, the in-vehicle control unit including a door lock determination section and a transmission control section, the door lock determination section determining that the door need be locked when the door manipulation unit accepts the door lock manipulation and the in-vehicle radio unit receives the door lock signal, and the transmission control section locking the door when the door lock determination section determines that the door need be locked and controlling the in-vehicle radio unit to transmit a signal indicating a charge amount of the secondary battery at a time of a door lock time, the mobile control unit being configured to calculate an estimate charge amount of the secondary battery at a predetermined time after the mobile radio unit receives the signal indicating the charge amount, by adding an addition amount to the charge amount indicated by the received signal, wherein the addition amount corresponds to an elapse of time from the door lock time to a display time, and the mobile control unit being further configured to control the mobile notification unit to display an amount related to the calculated estimate charge amount.