CALIBRATABLE UDS SECURITY CONCEPT FOR HEAVY-DUTY DIESEL ENGINE

• US 20080157920A1
• Filed: 11/14/2007
• Published: 07/03/2008
• Est. Priority Date: 12/28/2006
• Status: Abandoned Application

• Current Assignee: Detroit Diesel Corporation (Daimler Truck Holding AG)
• Original Assignee: Detroit Diesel Corporation (Daimler Truck Holding AG)
• Inventors: Groer, Frank S.
• Application Number:
  US11/940,051
• Publication Number:
  US 20080157920A1
• Time in Patent Office: Days
• US Class Current: 340/5.74
• CPC Class Codes: H04L 12/40013 Details regarding a bus controller
• CPC Class Codes: H04L 2012/40267 Bus for use in transportation systems
• CPC Class Codes: H04L 63/105 Multiple levels of security

Abstract

A method for providing varying levels of security access to an engine controller using security levels and seed and key programs to calculate access codes for the levels of security access.

Claims

1. A method of providing varying levels of security access to an engine controller software, said controller having non-volatile memory, comprising:

a. specifying engine control functions by level of security;

b. rejecting access to unauthorized levels of security based access code;

c. permitting access requested level of security when authorized access code is implemented.

2. The method of claim 1 wherein said access code is determined by a key calculation formula.

3. The method of claim 1, further including five levels of security.

4. The method of claim 1, wherein a code is generated in said engine controller if an unauthorized security access is requested as a log.

5. The method of claim 1, further including permitting default access to default information without requiring a security access level code.