US 12,286,076 B2
Method for operating an access system for a vehicle, and vehicle
Stefan Diewald, Moosburg a. d. Isar (DE); Bernhard Gasser, Munich (DE); Marcus Hilbel, Schwabmuenchen (DE); and Martin Kaltenbrunner, Taufkirchen (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 17/776,867
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed May 27, 2020, PCT No. PCT/EP2020/064689
§ 371(c)(1), (2) Date May 13, 2022,
PCT Pub. No. WO2021/121671, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10 2019 134 815.3 (DE), filed on Dec. 17, 2019.
Prior Publication US 2022/0388480 A1, Dec. 8, 2022
Int. Cl. B60R 25/40 (2013.01); B60R 25/24 (2013.01)
CPC B60R 25/40 (2013.01) [B60R 25/24 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for operating an access system for a vehicle, comprising the acts of:
determining, by a control unit in the vehicle, whether a voltage of an energy store of the vehicle is at or below a predetermined voltage value;
unlocking an extraneous feed device of the vehicle, based only on the control unit determining that the voltage is at or below the predetermined voltage value;
supplying electrical energy via the extraneous feed device to only a vehicle access portion of the control unit of the vehicle; and
releasing the vehicle from a locked state such that access to the vehicle is enabled in response to the vehicle access portion of the control unit receiving an unlocking command;
wherein the vehicle access portion is electrically connected directly to an extraneous electrical energy supply device via the extraneous feed device.