Method for controlling an electronically secured device and transponder for it

• US 9,483,889 B2
• Filed: 03/05/2014
• Issued: 11/01/2016
• Est. Priority Date: 03/05/2013
• Status: Active Grant

• Current Assignee: GM Global Technology Operations LLC (General Motors Company)
• Original Assignee: GM Global Technology Operations LLC (General Motors Company)
• Inventors: Notheis, Matthias, Heberer, Andreas
• Primary Examiner(s): Bee, Andrew
• Application Number:
  US14/198,233
• Publication Number:
  US 20140300446A1
• Time in Patent Office: 972 Days
• US Class Current: 1/1
• CPC Class Codes: B60R 25/00 Fittings or systems for preventing or indicating unauthorised use or theft of vehicles locks for vehicles E05B77/00-E05B85/00
• CPC Class Codes: G06Q 30/0645 Rental transactions; Leasing transactions
• CPC Class Codes: G07C 9/28 the pass enabling tracking or indicating presence
• CPC Class Codes: H04L 2209/805 Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor
• CPC Class Codes: H04L 2209/84 Vehicles
• CPC Class Codes: H04L 9/3226 using a predetermined code, e.g. password, passphrase or PIN network architectures or network communication protocols for supporting authentication of entities using passwords in a packet data network H04L63/083

Abstract

A method for controlling an electronically secured device by means of a transponder has the following procedural steps:

• a) Access authorization information is sent from an electrical access management system to the transponder via a mobile communications link,
• b) The access authorization information is received by the transponder,
• c) The access authorization information is transmitted from the transponder to the device, and
• d) A function of the device is activated if the received access authorization information matches reference information belonging to the device.

Claims

1. A method for controlling an electronically-secured device by means of a transponder comprising:

sending access authorization information from an electrical access management system to the transponder;

receiving the access authorization information at the transponder via a mobile communication link;

transmitting the access authorization information from the transponder to an electrically-secured device;

activating a function of the electrically-secured device when the received access authorization information matches reference information belonging to the electrically-secured device;

generating time limit information after access authorization information has been received by the transponder, wherein the electrically-secured device specifies a validity period of the access authorization information, and checks the time limit information; and

activating a function of the electrically-secured device only within the validity period of the access authorization information.

2. The method according to claim 1 wherein the device comprises an assembly of a motor vehicle.

3. The method according to claim 2 wherein transmitting the access authorization information from the transponder to an electrically-secured device the device comprises an engine immobilizer of the motor vehicle.

4. The method according to claim 1 wherein transmitting the access authorization information from the transponder to an electrically-secured device further comprises transmitting encrypted access authorization information from the transponder to the electrically-secured device.