FIELD: transportation.
SUBSTANCE: according to the first version, a vehicle door comprises a lock with an electric drive, a user input device, an electrical energy storage device, and a piezoelectric device. The user input device comprises a switch having a movable element. The piezoelectric device has a flexible piezoelectric element. A vehicle door unlocking device has a lock with an electric drive, comprises a base, a piezoelectric device with a flexible piezoelectric element, a switch with a movable switch element. According to the second version, the vehicle door comprises said door unlocking device. According to the third version, the vehicle door comprises a controller, a movable switch, a main and a backup battery, and a drive element.
EFFECT: achieving the possibility to use the lock in the event of a power failure.
20 cl, 10 dwg
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