0. Detroit Diesel Driver Training Presentation
Wayne Stephan District Manager Detroit Diesel Corporation

1. Aftertreatment System (ATS)
Aftertreatment Device (ATD)
Diesel Particulate Filter (DPF)
Diesel Oxidation Catalyst (DOC)
Doser
Intake throttle
DDEC VI controls
Intake Throttle Valve
Doser
Aftertreatment Device (ATD) T T P T
Diesel Oxidation Catalyst (DOC)
Diesel Particulate Filter (DPF)

2. Aftertreatment Regeneration Animation
Aftertreatment System
Aftertreatment Regeneration Animation

3. Aftertreatment System
Passive Regeneration
Passive regeneration occurs when the exhaust temperature during normal operation is adequate to trigger regeneration (600ºF - 750ºF)
During normal driving mode the soot is regenerated without driver intervention
Intake throttle valve may be used to increase passive regeneration without the aid of dosing

4. Aftertreatment System
Active Regeneration
Active regeneration takes place when normal operation does not allow for passive regeneration to take place
DDEC VI uses the doser and intake throttle valve to elevate exhaust temperatures allowing for complete regeneration
Active regeneration just like passive regeneration does not require driver intervention
Regeneration is suspended when the vehicle drops below a minimum threshold (~5 mph) for S60/MB MB900 Engines will regenerate down to 0 mph.
If vehicle slows below a minimum threshold during an active regeneration a “high exhaust temp” lamp will illuminate until exhaust temperature drops below 750ºF

5. Stationary or “Parked” Regeneration
Aftertreatment System
Stationary or “Parked” Regeneration
In a small number of select engine duty cycles completion of an active/passive regeneration may not be possible. In these cases, a stationary regeneration will need to occur
The DPF lamp has been added to inform the driver that a stationary regeneration needs to take place
The operator will be alerted hours before a stationary regeneration MUST take place.
The operator should perform the stationary regeneration as soon as possible after the light is illuminated.
To complete a stationary regeneration the following conditions must be met
Vehicle must be in park
Clutch is depressed and released
Transmission must be in neutral/park
Once initiated by the driver, active regeneration takes roughly 20 minutes to complete
DDC expects stationary regeneration will be required in less than 5% of customer applications

6. Regeneration Strategy Vocational Applications
Aftertreatment System
Regeneration Strategy Vocational Applications
Vocational Applications may require stationary or “Parked” regenerations
under light-load conditions
STATIONARY “PARKED”
Active Regens take approx. 40 minutes to complete – stationary regens approx minutes
ACTIVE
No Driver Effort Required
PASSIVE

7. The DPF Regeneration Cycle
NO DRIVER INTERACTION REQUIRED, FILTER CLEANING (also called regeneration) IS FULLY AUTOMATIC.
You will only see warning lights if the filter cannot perform an automatic cleaning.
The DPF is in ‘self cleaning’ mode.
No driver interaction is required.
Driver cannot tell if system is ‘Passively’ or ‘Actively’ regenerating.
When the regeneration process is complete the timers are all reset to zero and the process starts again.
Driver will only see warning lamps if the filter cannot perform an automatic cleaning (regeneration).

8. The DPF Regeneration Cycle
Bring vehicle to highway speeds to allow for an Automatic Regeneration
OR Perform a Parked Regeneration. FILTER REGENERATION RECOMMENDED.
SOLID
A parked regeneration can be performed at any time when the DPF lamp is on.
The engine will continue to try and complete an active regeneration during this time.
Lamp will begin flashing after approximately 1 hour of driving time if an over-the-road regeneration cannot be completed.
If regeneration is completed, lamp will go out and all timers will be reset to zero.

9. The DPF Regeneration Cycle
Bring vehicle to highway speeds to allow for an Automatic Regeneration
OR Perform a Parked Regeneration as soon as possible. FILTER REGENERATION NECESSARY.
FLASHING
A parked regeneration should now be performed as soon as possible.
The engine will continue to try and complete an active regeneration during this time.
Check Engine Lamp will come on after approximately 1/2 hour of driving time if an over-the-road regeneration cannot be completed.
If regeneration is completed, lamp will go out and all timers will be reset to zero.

10. The DPF Regeneration Cycle
Vehicle must be parked and a Parked Regeneration OR Service Regeneration must be performed.
PARKED REGENERATION REQUIRED – ENGINE DERATE. +
FLASHING
A parked regeneration MUST now be performed.
The engine will NOT try and complete an active regeneration during this time.
Engine is derated by 25%.
Stop Engine Lamp will come on after approximately:
1 hour of driving time for MBE 900.

11. The DPF Regeneration Cycle
Vehicle must be parked and a Parked Regeneration OR Service Regeneration must be performed.
PARKED REGENERATION REQUIRED – ENGINE SHUTDOWN. + +
FLASHING
A parked regeneration MUST now be performed.
The engine shutdown over ride switch functions normally.
(the number of over-rides is recorded)

12. High Idle Regeneration Procedures
Aftertreatment System
High Idle Regeneration Procedures
From Time to Time The Yellow DPF Regeneration Lamp May Come On
This Indicates that Soot Level is Elevated
Driving on the Highway or Having the Engine Under Load will Allow the Filter to “Self-Clean”
If the Light Starts to Flash you Will need to Pull the Truck Over and Initiate a High Idle Regeneration
DPF Regeneration
Lamp
Light On Solid

13. High Idle Regeneration Procedures
Aftertreatment System
High Idle Regeneration Procedures
The Engine Needs to be Warm (Approximately 180F)
It is Best to do This Immediately After Stopping
With the Truck Running,
Set Park Brake
Put Transmission in Neutral
Depress & Release Clutch Pedal
Verify No Other Codes in System (No Check Engine Light)
DPF Regeneration
Lamp
Light Flashing

14. High Idle Regeneration Procedures
Aftertreatment System
High Idle Regeneration Procedures
Depress Switch for 4 Seconds
RPM will Increase to about 1200
Engine will bring up the Temperatures & Initiate Regenerating the Filter
Approximately Minutes Later the Engine will Complete the Regeneration & the Engine will Return to 600 RPM
Hot Exhaust Temp Indicator Lamp May Remain On
Hot Exhaust Lamp is Information Only “No Driver Action Required”
DPF Regeneration Switch
High Exhaust
Temperature Lamp

15. Exhaust Diluter Testing
415°F Reduction in Max 6” Away from Pipe
Stock Pipe
Max Temp = 806°F / 430°C
With Diluter Pipe
Max Temp = 388°F / 198°C

16. Exhaust Temp at Tailpipe

17. Exhaust Temp on Ground

18. Trigger Significance – All Engines
FLASHING
FLASHING +
FLASHING +
SOLID
Zone 1 Trigger
(Auto Regen)
Zone 2 Trigger
Zone 3 Trigger
Zone 4 Trigger
(Parked Regen)
Zone 5 Trigger
Series 60 & HDEP Customer Demo
6 Hrs
250 Miles
157 kg fuel
13.5 Hrs
460 Miles
289 kg fuel
14.5 Hrs
520 Miles
327 kg fuel
15 Hrs
550 Miles
345 kg fuel
19 Hrs
800 Miles
502 kg fuel
MBE 4000
8 Hrs
300 Miles
No fuel trig
16 Hrs
450 Miles
17 Hrs
500Miles
17.5 Hrs
525 Miles
28 Hrs
MBE 900 – 9.0”
Low HP Units
124 Miles
30 kg fuel
7.5 Hrs
174 Miles
55 kg fuel
8.5 Hrs
217 Miles
65 kg fuel
9 Hrs
239 Miles
75 kg fuel
10 Hrs
283 Miles
85 kg fuel
MBE 900 – 10.5”
High HP Units
280 Miles
60 kg fuel
9.5 Hrs
357 Miles
90 kg fuel
10.5 Hrs
388 Miles
105 kg fuel
11 Hrs
419 Miles
115 kg fuel
12 Hrs
466 Miles
140 kg fuel
Speaker Notes:
Passive Regeneration happens naturally; the heat of the exhaust burns off the soot. No driver interaction is needed. No lights will come on.
Automatic Active Regeneration is necessary when the temperature is too low to completely burn off the soot. It is initiated by injecting fuel into the exhaust. No driver interaction is needed. No driver interaction is needed.
If an Active Regeneration can not be initiated automatically, the DPF regeneration light will light up 1.5 hours (solid) and 0.5 hours (flashing) before the engine is going to derate and a regeneration must be initiated.
Parked Regeneration is initiated by operating the regeneration switch on the dash; all safety conditions have to be met.
Explaining the above slide: If the truck hasn’t been able to passively or actively regenerate the DPF Regeneration lamp will go on at 13.5 hours. An hour later, the lamp will start to blink and alert the driver that he or she has to initiate a regeneration. He or she then has 30 minutes until the Check Engine Lamp goes on and the torque will derate by 25%.
Once a regeneration has taken place, the timer resets to zero.

19. Idle Time Strategy – MBE 900 (9”)
Idle Scenario (Overnight):
If the truck idles overnight, just before any of the regeneration indicator lamps light up, you have at least the amount of time – indicated by the dotted lines below – remaining, until the Aftertreatment System has to regenerate.
Idle RPM
>15 hrs
800 36 10 6 3 6 61
>22 hrs
Speaker Notes:
The above colors match the colors on the previous page.
The values circled in black refer to the overall amount of time.
As the values and graphs above indicate, the higher the engine speed the less idle time you have until the next regeneration is required.
Example: After 42 hours of 800 RPM the engine can still be idled for another 8 hours until the Aftertreatment Device requires a regeneration and another 6 hours of idle after that before the engine shuts down.
The idle time is based on driving hours (see previous slide) by the following factors:
700 RPM = Driving Hours x 6.67
800 RPM = Driving Hours x 5.56
700 55 14 9 4 9 91 10 20 30 40 50 60 70 80
100
Idle Time/Hours

20. Parked Regeneration Procedure (FAQ)
- Parked Regen Engine Speeds:
MBE900 = 1200 rpm
S60/HDEP Customer Demo = 1600 rpm
MBE4000 = 1300 rpm (potential to vary)
- To Cancel a Parked Regeneration hold the DPF Switch to the ON position for five (5) seconds and release.
- A Parked Regeneration will stop if the key is turned to the off position, the truck is put into gear or the parking brake is released.
- If a Parked Regeneration is canceled; the driver has 15 minutes to restart the process to have it pick up where it was interrupted. If the 15 minute timer has expired then the Parked Regeneration will start over from the beginning.
- The High Exhaust System Temperature (HEST) Lamp will remain on until the exhaust temperature falls below 975F or the vehicle speed exceeds 5 mph.
- Idle Shutdown Timer (if enabled) starts when Parked Regeneration is completed.

21. DDEC Reports – Trip Activity Explanation 1/2

22. DDEC Reports – Trip Activity Explanation 2/21
Parked Regen Count: Count of Parked Regeneration attempts.
Driving Regen Count: Count of Over-the-road Regenerations.
Parked Regen Fuel: Dosing Fuel + Fuel to run the engine
Driving Regen Fuel: Dosing Fuel used during Over-the-road Regenerations.
Idle Fuel: The amount of fuel used while the engine was in Idle Mode.
Trip Fuel: Driving Fuel + Idle Fuel + Total Regen Fuel
 Total Regen Fuel = Parked Regen Fuel + Driving Regen Fuel
Idle Time: Trip Time spent in Idle Mode.
Trip Time: Driving Time + Idle Time + Parked Regeneration Time
Parked Regen Time: Total time required for Parked Regeneration. 2

23. DPF Maintenance Frequency
Engine Model
Cleaning interval (Miles)
Series 60
550,000 miles
MBE 4000
300,000 miles
MBE 900
150,000 miles
Ash Cleaning Intervals are fixed in the engine calibration
Dependent on engine only
CJ- 4 oil
required on the MBE 900
optional on MBE 4000 & Series 60
When mileage is reached the Check Engine lamp comes on.

24. DPF Maintenance DDC Exchange Program
Aftertreatment System
DPF Maintenance
DDC Exchange Program
Utilizes a liquid cleaning solution to flush out ash from the filter cells
95% Effective
Shorter Service time than air cleaning
No Parked Regen Required!
Blowing ash out is around 30-40% effective. We have been cleaning filters for several years and thru testing determined liquid cleaning is the only effective method for cleaning and at this time don’t recommend air cleaning
and comes with 1yr 100k mile warranty (same as any other reman part)
Ash accumulation

25. Aftertreatment System
Liquid Cleaning
Filter is cleaned with a proprietary liquid solution only available with DDC filters
Most efficient method, % efficient
Process will be performed at DDC Remanufacturing Centers
Exchange program will be available
45 minutes of labor time
$500 - $750 expected list price
A process only available with DDC filters

26. The DPF Regeneration Cycle Indicator Lamp Progression+ +
SOLID
FLASHING
FLASHING
FLASHING
NO DRIVER INTERACTION REQUIRED, FILTER CLEANING (also called regeneration) IS FULLY AUTOMATIC.
About
1 hour
Less than
1 hour
Heavy-Duty
About 4 hrs
You will only see warning lights if the filter cannot perform an automatic cleaning.
Medium-Duty
About 1 hour
Bring vehicle to highway speeds to allow for an Automatic Regeneration
OR Perform a Parked Regeneration. FILTER REGENERATION RECOMMENDED.
SOLID
Bring vehicle to highway speeds to allow for an Automatic Regeneration
OR Perform a Parked Regeneration as soon as possible. FILTER REGENERATION NECESSARY.
FLASHING
Vehicle must be parked and a Parked Regeneration OR Service Regeneration must be performed.
PARKED REGENERATION REQUIRED – ENGINE DERATE. +
FLASHING
Vehicle must be parked and a Parked Regeneration OR Service Regeneration must be performed.
PARKED REGENERATION REQUIRED – ENGINE SHUTDOWN. + +
FLASHING