Abstract: An automobile power supply control device for performing a control of switching a plurality of power supply circuits of a vehicle based on an operation of a push button type operation switch has a plurality of switching units for connecting the power supply circuits and a vehicle battery, and a control unit for performing a control of driving the switching units in a predetermined order according to number of operations of the operation switch. The control unit has a first detecting portion for detecting the operation of the operation switch, an output portion for outputting a drive command for driving the switching unit of next order when the first detecting portion detects the operation of the operation switch, and a second detecting portion for detecting the number of operations of the operation switch from a time point the drive command is output until a contact of the driven switching unit is switched.

Abstract: A vehicle authentication control device has a first, second, and third determination units, and a registration unit. When identification information unique to a vehicle is registered in both a portable device and an authentication device on the vehicle, the first determination unit matches first identification information returned from the portable device in response to a request from the authentication device and second identification information registered in the authentication device to determine whether a combination of the portable device and the authentication device is legitimate.

Abstract: A vehicle authentication device has an in-vehicle device mounted on a vehicle, an authentication unit disposed in the in-vehicle device, for matching an ID returned from a portable device in response to a request from the in-vehicle device and performing an authentication of the vehicle, and an operation switch for instructing a power supply transition of the vehicle. The in-vehicle device has a measurement unit for measuring a duration of an active state of the operation switch, a determination unit for determining whether the duration exceeds a predetermined time, and a control unit for executing a power supply transition control of the vehicle based on the determination that the duration time of the active state of the operation switch exceeds the predetermined time made by the determination unit and an authentication result of the authentication unit.

Abstract: A vehicle authentication control device has a first, second, and third determination units, and a registration unit. When identification information unique to a vehicle is registered in both a portable device and an authentication device on the vehicle, the first determination unit matches first identification information returned from the portable device in response to a request from the authentication device and second identification information registered in the authentication device to determine whether a combination of the portable device and the authentication device is legitimate.

Abstract: A vehicle authentication device has an in-vehicle device mounted on a vehicle, an authentication unit disposed in the in-vehicle device, for matching an ID returned from a portable device in response to a request from the in-vehicle device and performing an authentication of the vehicle, and an operation switch for instructing a power supply transition of the vehicle. The in-vehicle device has a measurement unit for measuring a duration of an active state of the operation switch, a determination unit for determining whether the duration exceeds a predetermined time, and a control unit for executing a power supply transition control of the vehicle based on the determination that the duration time of the active state of the operation switch exceeds the predetermined time made by the determination unit and an authentication result of the authentication unit.

Abstract: An automobile power supply control device for performing a control of switching a plurality of power supply circuits of a vehicle based on an operation of a push button type operation switch has a plurality of switching units for connecting the power supply circuits and a vehicle battery, and a control unit for performing a control of driving the switching units in a predetermined order according to number of operations of the operation switch. The control unit has a first detecting portion for detecting the operation of the operation switch, an output portion for outputting a drive command for driving the switching unit of next order when the first detecting portion detects the operation of the operation switch, and a second detecting portion for detecting the number of operations of the operation switch from a time point the drive command is output until a contact of the driven switching unit is switched.