Fault code memory manager architecture concept consisting of a dedicated monitoring unit module and a fault memory manager administrator module for heavy duty diesel engine

• US 7,664,595 B2
• Filed: 11/13/2007
• Issued: 02/16/2010
• Est. Priority Date: 12/29/2006
• Status: Expired due to Fees

• Current Assignee: Detroit Diesel Corporation (Daimler Truck Holding AG)
• Original Assignee: Detroit Diesel Corporation (Daimler Truck Holding AG)
• Inventors: Groer, Frank Steffen, Golub, Tomislav Ivo
• Primary Examiner(s): WOLFE JR, WILLIS RAY
• Application Number:
  US11/938,967
• Publication Number:
  US 20080162023A1
• Time in Patent Office: 826 Days
• Field of Search: 701/29, 701/31, 701/33, 701/35, 701101-103, 701/111, 701/114, 701/115, 702182-187
• US Class Current: 701/114
• CPC Class Codes: G01M 15/04 Testing internal-combustion engines

Abstract

A fault code memory manager architecture for heavy duty diesel engines consisting of a dedicated monitoring unit module and at least one fault code memory manager administrator module.

Claims

1. A system for controlling the operation of an electronic controlled internal combustion engine equipped with an Electronic Control Unit (ECU);

a programmable motor control module having engine operating instructions resident in memory;

said motor control module in electronic communication with various engine systems to actuate said systems in accordance with said engine operating instructions;

said motor control module further in electronic communication with at least one sensor to receive data signals indicative of engine operation fault conditions;

a Common Powertrain Controller in electronic communication with said motor control module;

said Common Powertrain Controller having at least one monitoring unit in electronic communication with an engine system and a fault code module resident therein;

said fault codes from said motor control module electronically communicated to said common Powertrain controller and stored in memory said fault code module as a static record of motor control module fault code data;

said static record to provide data to update any replacement of said common Powertrain controller or said motor control module.

2. The system of claim 1, wherein said fault code module memory is electronically connected to a dedicated monitoring unit module and includes at least one field sufficient to describe fault behavior in at least one monitoring unit fault code identifier used internally between said motor control module and said component powertrain controller.

3. The system of claim 1, wherein said fault code module keeps a record of static motor control module fault code data in XFLASH memory.

4. The system of claim 1, wherein faults in said CPC2 fault controller is internally evaluated a predetermined number of times in a predetermined period of time to ensure accuracy.

5. The system of claim 1, wherein said motor control module communicates to said Common Powertrain Controller an at least one of Common Area network (CAN);

Engine Common Area Network (ECAN);

SAE data link J1587;

SAE data link J1939;

uniform diagnostic system.

6. The system of claim 5, wherein said common powertrain controller echoes faults from said motor control module on SAE data links J1587 and J1939.

7. The system of claim 1, further including at least one monitoring unit in communication with at least one engine system and a fault control memory manager module in said MCM.

8. The system of claim 7, wherein said faults in said MCM fault control memory manager are evaluated a predetermined number of times in a predetermined period of time to ensure accuracy.