IP Library Granted Patent US 12668999
Granted Patent B2
US 12668999 · App. 18/625,072 · Granted Jun 30, 2026

Power door-lock system

Inventor: Hitomi Yamazaki (Tokyo, JP)
Assignee: SUBARU CORPORATION
E05B81/56E05B81/76H04W12/65H04W12/67
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Quick Facts
Patent No.
US 12668999
App. No.
18/625,072
Filed
Apr 2, 2024
Granted
Jun 30, 2026
Kind
B2
Art Unit
2689
USPC
340/5.72
Abstract

A power door-lock system includes a door-lock controller, a current position data obtainer, a security data obtainer, and a security situation identifier. The door-lock controller controls door-lock of a vehicle. The current position data obtainer acquires position data regarding a current position of the vehicle. The security data obtainer acquires security data regarding a region including the current position of the vehicle. The security situation identifier identifies a security situation of the current position of the vehicle based on the position data and the security data. The power door-lock system determines, based on the security situation identified by the security situation identifier, transition time from a door-unlocked state of the vehicle after a determination that a driver has got off to power door-lock, and allows the door-lock controller to make the power door-lock after an elapse of the transition time.

Claims (39)

1 . A power door-lock system comprising:

a door-lock controller configured to control a power door-lock of a vehicle;

a current position data chip configured to acquire position data regarding a current position of the vehicle;

a security data chip configured to acquire regional security data for a geographic area including the current position of the vehicle, the regional security data including at least a count of vehicle-related theft cases for the geographic area; and

an electronic control unit configured to:

identify a risk level for the geographic area based on the position data and the regional security data;

upon determining that a driver has exited the vehicle, determine a transition time based on the identified risk level; and

upon expiration of the transition time, cause the door-lock controller to actuate the power door-lock.

2 . The power door-lock system according to claim 1 , further comprising a key position detector chip, wherein

the vehicle includes key devices,

the key position detector chip is configured to detect respective positions of the key devices, and

the electronic control unit is further configured to:

identify positions of the key devices based on detection by the key position detector chip, and

upon identifying that a first one of the key devices is located outside the vehicle, cause the door-lock controller to actuate the power door-lock, even when a second one of the key devices is identified as being located inside the vehicle, the second one of the key devices being different from the first one of the key devices.

3 . The power door-lock system according to claim 2 , wherein the electronic control unit is configured to disable the second one of the key devices.

4 . The power door-lock system according to claim 1 , wherein the electronic control unit is further configured to:

determine, based on the position data acquired by the current position data chip, whether the current position of the vehicle is a specific position; and

upon determining that the current position of the vehicle is other than the specific position, cause a hazard lamp of the vehicle to blink when the power door-lock is actuated.

5 . The power door-lock system according to claim 1 , wherein the transition time decreases as the identified risk level increases.

6 . The power door-lock system according to claim 1 , wherein the electronic control unit is configured to adjust the transition time based on a time-of-day associated with vehicle-related theft cases included in the regional security data.

7 . A power door-lock system comprising

circuitry configured to control door-lock of a vehicle, and acquire position data regarding a current position of the vehicle and regional security data for a geographic area including the current position of the vehicle, the regional security data including at least a count of vehicle-related theft cases for the geographic area,

the circuitry being configured to:

identify a risk level for the geographic area based on the position data and the regional security data;

upon determining that a driver has exited the vehicle, determine a transition time based on the identified risk level; and

upon expiration of the transition time, cause the door-lock controller to actuate the power door-lock.

8 . A power door-lock system comprising:

a door-lock controller configured to control door-lock of a vehicle;

a current position data chip configured to acquire position data regarding a current position of the vehicle;

a security data chip configured to acquire security data regarding a region including the current position of the vehicle;

a security situation chip configured to identify a security situation of the current position of the vehicle based on the position data and the security data;

a key position detector chip; and

a key position identifier chip, wherein

the power door-lock system is configured to determine, based on the security situation identified by the security situation chip, transition time from a door-unlocked state of the vehicle after a determination that a driver of the vehicle has got off to power door-lock, and allow the door-lock controller to make the power door-lock after an elapse of the transition time,

the vehicle includes key devices,

the key position detector chip is configured to detect respective positions of the key devices,

the key position identifier chip is configured to identify key position data detected by the key position detector chip, and

the power door-lock system is configured to, when the key position identifier chip identifies a first one of the key devices as being located outside the vehicle, make the power door-lock despite that the key position identifier chip identifies a second one of the key devices as being located inside the vehicle, the second one of the key devices being different from the first one of the key devices.

9 . The power door-lock system according to claim 8 , wherein the key position identifier chip is configured to disable the second one of the key devices.