ACCESS AND DRIVING AUTHENTICATION SYSTEM WITH INCREASED SECURITY AGAINST RELAY ATTACKS ON THE TRANSPONDING INTERFACE

• US 20180345908A1
• Filed: 05/11/2016
• Published: 12/06/2018
• Est. Priority Date: 05/15/2015
• Status: Active Grant

• Current Assignee: Hella Gmbh & Co. Kgaa (Forvia SE)
• Original Assignee: Hella KGaA Hueck & Company
• Inventors: Weghaus, Ludger
• Granted Patent: US 10,464,527 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 2325/108 Encryption
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: B60R 25/241 whereby access privileges are related to the identifiers
• CPC Class Codes: B60R 25/245 where the antenna reception area plays a role
• CPC Class Codes: B60R 25/403 Power supply in the vehicle
• CPC Class Codes: G07C 2209/63 Comprising locating means for detecting the position of the data carrier, i.e. within the vehicle or within a certain distance from the vehicle
• CPC Class Codes: G07C 9/00309 operated with bidirectional data transmission between data carrier and locks

Abstract

An authentication element that may include a keyless go device for a vehicle. The authentication element may include a transponding interface for transmitting an authentication signal and receiving power and data. A sensor element may also be provided for detecting a movement and/or inclination. The authentication element is designed such that authentication signals are transmitted over the transponding interface when the sensor element detects a stored movement and/or inclination. An authentication system for vehicles may include at least one authentication element and an apparatus.

Claims

1. An authentication element including a keyless go device for a vehicle, the authentication element comprising:

a transponding interface for transmitting an authentication signal and for receiving power and data, and

a sensor element for detecting a movement and/or inclination,

wherein authentication signals are transmitted over the transponding interface when the sensor element detects at least one of a stored movement and inclination.

2. The authentication element in accordance with claim 1, wherein:

the authentication element has a signal processing and a forwarding device,

the signal processing and forwarding device is connected to the transponding interface and to the sensor element,

the signal processing and forwarding device detects the movement and/or inclination of the sensor element,

a stored movement and/or inclination is stored in the authentication element, specifically in the signal processing and forwarding device for comparison,

the signal processing and forwarding device transmits authentication signals over the transponding interface,

the authentication signals contain a movement and/or inclination detected at the sensor element.

3. The authentication element in accordance with claim 2, wherein:

the sensor element of the authentication element has at least one acceleration sensor and/or at least one inclinometer for the purpose of detecting a movement and/or inclination,

the signal processing and forwarding device is designed such that the detected movement and/or inclination is compared to the stored movement and/or inclination,

if the comparison is positive, the signal processing and forwarding device transmits authentication signals over the transponding interface.

4. An authentication system for vehicles with at least one authentication element in accordance with claim 3 comprising:

an apparatus having a reading device for sending power and data as well as receiving authentication signals,

whereby the transponding interface of the authentication element is engageable with the reading device for the apparatus in order to transmit authentication signals to the reading device after receiving power and data, and

wherein a function is activated after receiving transmitted authentication signals.

6. The authentication system in accordance with claim 4 wherein:

the apparatus has a control system including function logic for processing authentication signals that is preferably connected to the reading device,

there are stored authentication signals for comparison stored in the apparatus in the function logic,

the received and stored authentication signals contain a movement and/or inclination detected at the sensor element,

the function logic compares received authentication signals to stored authentication signals,

the apparatus has a sensor device for detecting an inclination,

the control system detects a movement and/or inclination of the sensor device,

the sensor device has at least one acceleration sensor and/or at least one inclinometer.

7. A process for checking an authentication request intended by a user on an authentication element of a vehicle with an authentication system in accordance with claim 6, whereby the process has the following steps:

positioning the authentication element in the transmission and reception area of the reading device of the apparatus,

receiving power, whereby the transponding interface of the authentication element receives power from the reading device of the apparatus,

detecting the movement and/or inclination at the authentication element by the sensor element,

generating authentication signals which include the detected movement and/or inclination,

transmitting the authentication signals from the authentication element to the apparatus, and

comparing the detected authentication signals with stored authentication signals in the apparatus.

8. A process for checking an authentication request intended by a user on an authentication element of a vehicle with an authentication system in accordance with claim 6, whereby the process has the following steps:

positioning the authentication element in the transmission and reception area of the reading device of the apparatus,

receiving power, whereby the transponding interface of the authentication element receives power from the reading device of the apparatus,

detecting the movement and/or inclination at the authentication element by the sensor element,

comparing the detected movement and/or inclination in the authentication element with a stored movement and/or inclination, whereby, when the comparison is positive, transmission of authentication signals is initiated from the authentication element to the apparatus.

9. The process in accordance with claim 7, wherein:

the detection of the movement and/or inclination includes a detection by the signal processing and forwarding device of the authentication element;

the stored authentication signals are stored in the signal processing and forwarding device of the authentication element;

the stored authentication signals are stored in the function logic of the apparatus;

when the comparison is positive, the detected authentication signals match the stored authentication signals.

10. The process in accordance with claim 7, wherein:

the function logic compares the authentication signals of the authentication element to the stored authentication signals of the apparatus,

the signal processing and forwarding device compares the detected movement and/or inclination to the stored movement and/or inclination,

the signal processing and forwarding device uses a wireless connection of the transponding interface and reading device to transmit authentication signals to the function logic of the apparatus, and

the step of transmitting the authentication signals preferably includes encryption and/or compression of the authentication signals.

5. (canceled)