Reprogramming vehicle computers via CD player

• US 6,823,247 B1
• Filed: 06/18/2003
• Issued: 11/23/2004
• Est. Priority Date: 06/18/2003
• Status: Active Grant

• Current Assignee: FCA US LLC (Stellantis NV)
• Original Assignee: Daimler Chrysler Corporation (Mercedes-Benz Group AG)
• Inventors: Shah, Sujal B, Issa, Nabil M
• Primary Examiner(s): ARTHUR JEANGLAUDE, GERTRUDE
• Application Number:
  US10/464,044
• Time in Patent Office: 524 Days
• Field of Search: 701/29, 701/36, 701/48, 701/33, 701/35, 701/49, 370/203, 370/252, 734/321, 731/16, 731/172, 731/173, 702/183, 702/185
• US Class Current: 701/36
• CPC Class Codes: F02D 41/2487 Methods for rewriting
• CPC Class Codes: G06F 8/65 Updates security arrangements therefor G06F21/57

Abstract

A method and system for flashing motor vehicle electronic control modules incorporates a networked system to transfer data from an entertainment system associated with the vehicle to electronic control modules. The data is stored on a data storage medium accessed by the entertainment system component and transferred to the database network which then transports the data to the electronic control modules.

Claims

1. In a vehicle having at least one electronic control module, an arrangement for flashing a memory of the at least one module comprising:

a portable data storage medium containing one of entertainment data and control module data, the data storage medium further containing an indicator of the presence of control module data; and

an entertainment system component of the vehicle having a memory reader for removable receipt of the portable data storage medium, the entertainment system component coupled via a data bus to the at least one module, said entertainment system component operative to read control module data from said data storage medium and to transfer the control module data to the at least one electronic control module via the data bus upon detection of the indicator in the portable data storage medium.

2. The arrangement of claim 1, wherein the at least one electronic control module is a transmission controller module.

3. The arrangement of claim 1, wherein the at least one electronic control module is an engine controller module.

4. The arrangement of claim 1, wherein said data storage medium comprises a memory stick.

5. The arrangement of claim 1, wherein said data storage medium comprises a DVD and the entertainment system component comprises a DVD player.

6. The arrangement of claim 1, wherein said data storage medium comprises a CD-ROM and the entertainment system component comprises a CD player radio.

7. The arrangement of claim 1, wherein said control module data on said data storage medium includes at least one of:

electronic control module identification information, an s-record file, obsolete part numbers, and a list of vehicles to which the data applies.

8. A method for flashing a memory of a motor vehicle electronic control module using an entertainment system component installed in the vehicle, said method comprising:

inserting a data storage medium into said entertainment system component,

detecting presence of control module data on said data storage medium;

accessing, with the entertainment system component, said control module data resident on said data storage medium; and

flashing said electronic control module with the entertainment system component by transferring the control module data to said memory of said electronic control module.

9. The method of claim 8, further comprising actuating a combination of buttons on the entertainment system component to initiate a flashing mode.

10. The method of claim 8 further comprising determining if the electronic control module requires flashing by comparing existing data in the electronic control module with the control module data accessed from the data storage medium.

11. The method of claim 8 further comprising verifying a successful flash by comparing the control module data on the data storage medium with the data in the electronic control module.

12. The method of claim 8 further comprising:

initiating flashing only after determining that the vehicle is stopped and a vehicle engine is off.