IP Library › Granted Patent US 12,529,248
Granted Patent B2
US 12,529,248 · App. 17/838,689 · Granted Jan 20, 2026

Vehicle door control system

Inventor: Tetsuya Nagasaki (Okazaki, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
E05B81/66E05B77/14
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Quick Facts
Patent No.
US 12,529,248
App. No.
17/838,689
Granted
Jan 20, 2026
Kind
B2
Abstract

A vehicle door control system includes a courtesy switch that detects an opened/closed state of a side door, a latch actuator that performs an unlatch operation for releasing a latch that holds the side door in a closed state, an unlatch switch that is provided in a vehicle compartment and is operated by a user when releasing the latch, and a controller that causes the latch actuator to perform the unlatch operation when the unlatch switch is operated. The controller prevents the unlatch operation from being executed in a period during which the side door is in an opened state, even when the unlatch switch is operated.

Claims (27)

1 . A vehicle door control system comprising:

a door sensor that detects both an opened state and a closed state of a door;

a latch actuator that performs an unlatch operation for releasing a latch mechanism that holds the door in the closed state;

an unlatch switch that is provided in a vehicle compartment and is operated by a user to initiate the unlatch operation for releasing the latch mechanism; and

a controller that causes the latch actuator to execute the unlatch operation when the unlatch switch is operated in a period during which the door sensor detects the closed state of the door,

wherein the controller prevents the unlatch operation from being executed by the latch actuator in a period during which the door sensor detects the opened state of the door, even when the unlatch switch is operated once,

wherein the door sensor detects, in distinction from the opened state, an incompletely closed door state in which a latch body of the latch mechanism, provided in the door, is insufficiently engaged with a striker provided in a vehicle, and

wherein the controller causes the latch actuator to execute the unlatch operation when the unlatch switch is operated in a period during which the door sensor detects the incompletely closed door state of the door.

2 . The vehicle door control system according to claim 1 , wherein

the controller causes the latch actuator to execute the unlatch operation when the unlatch switch is operated two or more times in the period during which the door sensor detects the opened state of the door.

3 . The vehicle door control system according to claim 1 , wherein

the controller causes the latch actuator to execute the unlatch operation when the unlatch switch is operated two or more times within a predetermined time limit, even in the opened state of the door.

4 . The vehicle door control system according to claim 1 , wherein

the controller causes the latch actuator to execute the unlatch operation when the unlatch switch is pressed for a predetermined long time even in the opened state of the door.

5 . The vehicle door control system according to claim 1 , wherein

the unlatch switch is installed on an inner end surface in a vehicle width direction of a door handle gripped by the user when opening or closing the door.

6 . A vehicle door control system comprising:

a door sensor that detects both an opened state and a closed state of a door;

a latch actuator that performs an unlatch operation for releasing a latch mechanism that holds the door in the closed state;

an unlatch switch that is provided in a vehicle compartment and is operated by a user to initiate the unlatch operation for releasing the latch mechanism; and

a controller that causes the latch actuator to execute the unlatch operation when the unlatch switch is operated in a period during which the door sensor detects the closed state of the door,

wherein the controller prevents the unlatch operation from being executed by the latch actuator in a period during which the door sensor detects the opened state of the door, even when the unlatch switch is operated once, and

wherein the controller causes the latch actuator to execute the unlatch operation when the unlatch switch is operated two or more times in the period during which the door sensor detects the opened state of the door.

7 . The vehicle door control system according to claim 6 , wherein

the door sensor detects, as the opened state, an incompletely closed door state of the door in which a latch body of the latch mechanism, provided in the door, is insufficiently engaged with a striker provided in a vehicle.

8 . The vehicle door control system according to claim 6 , wherein

the unlatch switch is installed on an inner end surface in a vehicle width direction of a door handle gripped by the user when opening or closing the door.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 13, 2022
From: NAGASAKI, TETSUYA
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 060182/0857 →
Priority Claims (1)
JP 2021-099610 · Jun 15, 2021 · national
Continuity (1)
Related Publication 20220396980A1 · Dec 15, 2022
References Cited (13)
US 8533998B2 · Nishikibe · 2013 [cited by examiner]
US 10119308B2 · Linden · 2018 [cited by examiner]
US 20030052490A1 · Willats · 2003 [cited by examiner]
US 20030182863A1 · Mejean · 2003 [cited by examiner]
US 20060175899A1 · Nagano et al. · 2006 [cited by applicant]
US 20200032563A1 · Kito · 2020 [cited by examiner]
CN 1497120A · 2004 [cited by applicant]
JP 2003020844A · 2003 [cited by applicant]
JP 2007032139A · 2007 [cited by applicant]
JP 2017197912A · 2017 [cited by applicant]
JP 2021011678A · 2021 [cited by examiner]
KR 19980053635U · 1998 [cited by examiner]
Translation for KR 19980053635 U (Year: 2025). [cited by examiner]