WRITING OF AN ABSOLUTE KILOMETER READING INTO A MEMORY ELEMENT, IN PARTICULAR OF A WIRELESS KEY

• US 20120109448A1
• Filed: 06/26/2010
• Published: 05/03/2012
• Est. Priority Date: 07/03/2009
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Ledendecker, Ingo, Maas, Stephan
• Granted Patent: US 8,880,280 B2
• Time in Patent Office: Days
• US Class Current: 701/32.5
• CPC Class Codes: G07C 5/0858 wherein the data carrier is removable

Abstract

The invention relates to a method for transmitting vehicle data in the form of kilometer readings of a motor vehicle (1) to a memory element (7) having a counter, which memory element is removable from the motor vehicle. At time intervals, the kilometer reading of the motor vehicle is transmitted to the memory element (7), and after each kilometer reading transmission, the difference between the last transmitted and the newly transmitted kilometer reading is added up in the counter.

Claims

1-6. -6. (canceled)

7. A method for the transmission of vehicle data in form of kilometer readings of a motor vehicle, said method comprising:

transmitting a first kilometer reading of the motor vehicle to a memory element;

transmitting a second kilometer reading of the motor vehicle to the memory element.

determining a difference between the first kilometer reading and the second kilometer reading; and

adding up the difference in a counter of the memory element.

8. The method of claim 7, wherein the difference between the first kilometer reading and the second kilometer reading is only added up in the counter when the difference is positive.

9. The method of claim 7, wherein the vehicle data are transmitted by using at least one member selected from the group consisting of a transponder and a LF-connection.

10. The method of claim 7, wherein the vehicle data received by the memory element are readable and/or writeable only after authentication.

11. A memory element for storing data of a motor vehicle, comprising:

a receiving member for receiving kilometer readings of the motor vehicle; and

a counter adding up a difference between a last one of the kilometer readings and a newly transmitted one of the kilometer readings.

12. A vehicle key, comprising a memory element including a receiving member for receiving kilometer readings of a motor vehicle, and a counter adding up a difference between a last one of the kilometer readings and a newly transmitted one of the kilometer readings.

13. A method for the transmission of vehicle data in form of kilometer readings of a motor vehicle, said method comprising:

obtaining a current kilometer reading of the motor vehicle from a memory element;

transmitting a first kilometer reading of the motor vehicle to the memory element;

determining a difference between the current kilometer reading and the first kilometer reading, wherein when the difference is negative, an occurrence of the the negative difference is registered in the memory element, or, when the difference is positive, a second kilometer reading is established by adding the positive difference between the current kilometer reading and the first kilometer reading to the current kilometer reading; and

setting said second kilometer reading as the current kilometer reading of the vehicle in the memory element.