1 SUBJECT DATE Parked Regeneration October 2018 Additions, Revisions, or Updates Publication Number / Title Platform Section Title Change DDC-SVC-MAN-0190 GHG17 DD Platform Parked Regeneration DDC-SVC-MAN-0083 EPA07 DD Platform Parked Regeneration Updated parked regeneration information. EPA10; DDC-SVC-MAN-0083 GHG14 DD Platform Parked Regeneration All information subject to change without notice. 3 Copyright 2018 DETROIT DIESEL CORPORATION
2 Parked Regeneration 2 Parked Regeneration WARNING: HOT EXHAUST During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if directed at combustible materials. The vehicle must be parked outside. WARNING: ENGINE EXHAUST To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic. When the parked regeneration request is accepted, the Diesel Particulate Filter (DPF) Regeneration lamp will turn ON one time for one second and then turn off for the remainder of the parked regeneration. The High Exhaust System Temperature (HEST) lamp will flash for one second every ten seconds and eventually become solid when the Selective Catalyst Reduction (SCR) outlet temperature is above 525 C (977 F). The engine speed will increase to 1250 rpm for both the DD13 and DD15 and to 1275 rpm for the DD16. Engine speed could drop to as low as 1100 rpm towards the end of the regeneration depending on ambient temperature conditions. The regeneration will take approximately 30 to 45 minutes. There is no hydrocarbon fuel dosing during the first 12 minutes. The regeneration is complete when the engine returns to low idle and the DPF lamp remains OFF. The HEST lamp will remain ON, but the vehicle may be driven. The DD13 and DD15 engines create a noise on the right side of the engine during a parked regeneration that is normal. This is caused by EGR flow during the parked regeneration creating a noise resonance. See video titled "GHG17 DD13 and DD15 Parked Regeneration Noise" at ddcsn.com > Support > Multimedia > Aftertreatment. GHG17 DD13 and DD15 Parked Regeneration Noise (https://ddcsn-ddc.freightliner.com/media/ghg17dd13anddd15parkedregenerationnoise.mp4) The DD16 engine will not produce this noise because it still has an Intake Throttle Valve and Axial Power Turbine design. A parked regeneration will STOP and the engine will return to low idle if any of the following happens: The vehicle is put into gear The clutch is cycled The parking brake is released The accelerator pedal is depressed The image below shows an example of a parked regeneration log file view using the DiagnosticLink chart selection. 4 All information subject to change without notice. Copyright 2018 DETROIT DIESEL CORPORATION
Figure 1. DiagnosticLink Chart Selection The chart below is a list of parameter ranges observed during a parked regeneration using the DiagnosticLink chart selection. These parameters are meant to be used as a guide and are not specifications. These parameters can fluctuate outside of the ranges given below. Table 1. DiagnosticLink Parameters Monitored Parameter GHG17 Typical Reading Engine Speed 1250 rpm for the first 12 min. May fluctuate to 1100 rpms Fuel Cut-off valve 100% Once DOC inlet reaches 276 C (529 F) Actual Torque load 20 to 40% Derived by engine accelerant AT Engines 20 to 60%, Torque load higher with PTO Throttle Valve Actual 75 to 90% Not Used in DD13 and DD15 Actual Fuel Mass 100 to 160 mg/h If lower, could lead to engine break or front solenoid testing Fuel Comp pressure 689 to 758 kpa (100 to 110 psi) Doser Fuel Line pressure 103 to 207 kpa (15 to 30 psi) DPF Outlet temp 399 to 577 C (750 to 1070 F) DOC Inlet temp 288 to 427 C (550 to 800 F) DD13 will run hotter. Fire truck/bus/crane may all see 371 to 454 C (700 to 850 F) DOC Outlet temp 399 to 577 C (750 to 1070 F) DOC Inlet pressure Less than 6 kpa (.89 psi) All information subject to change without notice. 5 Copyright 2018 DETROIT DIESEL CORPORATION
2 Parked Regeneration DiagnosticLink Parameters Monitored Parameter GHG17 Typical Reading DPF Outlet pressure Around 1/2 of DOC Inlet Pressure (Calculated) SCR Inlet temp 371 to 577 C (700 to 1070 F) Calculated, based on DPF temp SCR Out temp 371 to 577 C (700 to 1070 F) SCR Temp sensors Must be within 20.2 C (68.4 F) of each other 2V2 will have lower SCR out temp than inlet SCR NOx sensors Use a Low Temp STD test to determine functionality. NOx sensors Up to 50 ppm from each other NOx Conversion Greater than 85% Doser Injection Status Gradual increase from 10% to 25% DOC must be 276 C (529 F) or higher No dosing during the first 12 min. Intake Manifold pressure Less than 186 kpa (27 psi) Exhaust Gas mass flow rate Greater than 500 Kg/h EGR Actual Valve 85 to 100% Delta-P 14 to 21 kpa (2 to 3 psi) DEF Pressure 965 to 1034 kpa (140 to 150 psi) DEF Pump Speed 900 to 1150 rpms 6 All information subject to change without notice. Copyright 2018 DETROIT DIESEL CORPORATION
3 Parked Regeneration When the parked regeneration request is accepted, the Diesel Particulate Filter (DPF) Regeneration lamp will turn ON one time for one second and then turn off for the remainder of the parked regeneration. The High Exhaust System Temperature (HEST) lamp will flash for one second every ten seconds and eventually become solid when the tailpipe temperature is above 525 C (977 F). The engine speed will increase to 1600 rpm for all EPA07 engines. The regeneration will take approximately 30 to 40 minutes. The regeneration is complete when the engine returns to low idle and the DPF lamp remains OFF. The HEST lamp will remain ON, but the vehicle may be driven. A parked regeneration will STOP and the engine will return to low idle if any of the following happens: The vehicle is put into gear The clutch is cycled The parking brake is released The accelerator pedal is depressed The image below shows an example of a parked regeneration log file view using the DiagnosticLink chart selection. Figure 2. DiagnosticLink Chart Selection The chart below is a list of parameter ranges observed during a parked regeneration using the DiagnosticLink chart selection. These parameters are meant to be used as a guide and are not specifications. These parameters can fluctuate outside of the ranges given below. All information subject to change without notice. 7 Copyright 2018 DETROIT DIESEL CORPORATION
3 Parked Regeneration Table 2. DiagnosticLink Parameters Monitored Parameter EPA07 Typical Reading Engine Speed 1600rpm Fuel Cut-off valve 100% Once DOC inlet reaches 281 C (538 F) Throttle Valve Actual 80 to 85% Fuel Comp pressure 517 to 655 kpa (75 to 95 psi) Doser Fuel Line pressure 103 to 207 kpa (15 to 30 psi) DPF Outlet temp 582 C (1080 F) DPF Inlet Pressure Less than 1 psi DOC Outlet temp 603 C (1118 F) DOC Out Model Delay 599 C (1110 F) A drastic drop in temperature indicates a possible bad doser injector DOC Inlet temp 312 C (593 F) Doser Injection Status Gradual increase from 10% to 25% EGR Valve Actual 80% (not monitor) EGR Commanded Value 5% Inlet Manifold Pressure Barometric pressure + or - 14 kpa (2 psi) Coolant Temp Should reach 60 C (140 F) before ITV closes Smoke Control 0 8 All information subject to change without notice. Copyright 2018 DETROIT DIESEL CORPORATION
4 Parked Regeneration When the parked regeneration request is accepted, the Diesel Particulate Filter (DPF) Regeneration lamp will turn ON one time for one second and then turn off for the remainder of the parked regeneration. The High Exhaust System Temperature (HEST) lamp will flash for one second every ten seconds and eventually become solid when the Selective Catalyst Reduction (SCR) outlet temperature is above 525 C (977 F). The engine speed will increase to 1275 rpm for EPA10 DD Platform engines, and 1250 rpm for GHG14 DD Platform engines.ghg14 DD Platform engine speed could drop to as low as 1100 rpm towards the end of the regeneration, depending on ambient temperature conditions. The regeneration will take approximately 30 to 45 minutes. There is no hydrocarbon fuel dosing during the first 12 minutes. The regeneration is complete when the engine returns to low idle and the DPF lamp remains OFF. The HEST lamp will remain ON, but the vehicle may be driven. A parked regeneration will STOP and the engine will return to low idle if any of the following happens: The vehicle is put into gear The clutch is cycled The parking brake is released The accelerator pedal is depressed The image below shows an example of a parked regeneration log file view using the DiagnosticLink chart selection. Figure 3. DiagnosticLink Chart Selection The chart below is a list of parameter ranges observed during a parked regeneration using the DiagnosticLink chart selection. These parameters are meant to be used as a guide and are not specifications. These parameters can fluctuate outside of the ranges given below. All information subject to change without notice. 9 Copyright 2018 DETROIT DIESEL CORPORATION
4 Parked Regeneration Table 3. GHG14 / EPA10 DiagnosticLink Parameters Monitored Parameter GHG14 Typical Reading EPA10 Typical Reading Engine Speed 1100 to 1250 rpm 1100 to 1250 rpm Turbo Speed 45,000 to 60,000 NA Turbo is used to create Pressure 13+15AT only Fuel Cut-off valve 100% 100% Once DOC inlet reaches 280 C (536 F) Actual Torque load 15 to 18% Derived by engine accelerant 15 to 18% AT engines 20 to 50% Throttle Valve Actual 75 to 90% 75 to 90% [AT Engines = Not used] Once DOC inlet reaches 280 C (536 F) Derived by engine accelerant Not Used in DD13 and DD15 Actual Fuel Mass 100 to 160 mg/h 100 to 160 mg/h Fuel Comp pressure If lower, could lead to engine break or front solenoid testing 552 to 621 kpa (80 to 90 psi) [AT: 724 to 793 kpa (105 to 115 psi)] If lower, could lead to engine break or front solenoid testing 552 to 621 kpa (80 to 90 psi) Doser Fuel Line pressure 103 to 207 kpa (15 to 30 psi) 103 to 207 kpa (15 to 30 psi) DPF Outlet temp 582 to 621 C (1080 to 1150 F) 582 to 621 C (1080 to 1150 F) DOC Inlet temp 288 to 368 C (550 to 695 F) 288 to 368 C (550 to 695 F) DD13 will run hotter. Fire truck/bus/crane may all see 371 to 454 C (700 to 850 F) DD13 will run hotter. Fire truck/bus/crane may all see 371 to 454 C (700 to 850 F) DOC Outlet temp 566 to 621 C (1050 to 1150 F) 510 to 677 C (950 to 1250 F) DOC Inlet pressure Less than 7.6 kpa (1.1 psi) (ONE-Box) Less than 8.9 kpa (1.3 psi) (ONE-Box) Less than 1.9 kpa (13.1 psi) (2-Box) DD13, 15TC, and DD16 will be closer to 3.4 kpa (0.5 psi). AT Engines run higher pressure of 6.9 to 8.3 kpa (1 to 1.2 psi ) on a new box. Less than 12.0 kpa (1.74 psi) (2-Box) DPF Outlet pressure Around 1/2 of DOC Inlet Pressure Around 1/2 of DOC Inlet Pressure SCR Inlet temp 510 to 621 C (950 to 1150 F) 510 to 593 C (950 to 1100 F) SCR Out temp 510 to 621 C (950 to 1150 F) 510 to 593 C (950 to 1100 F) SCR Temp sensors Must be within 20.2 C (68.4 F) of each other Must be within 20.2 C (68.4 F) of 2V2 will have lower SCR out temp than inlet each other SCR NOx sensors NOx sensors Use a Low Temp ATD test to determine functionality. Between 20 to 30 ppm from each other 200 to 300 ppm (DD15) 400 to 500 ppm (DD13) Between 20 to 30 ppm from each other NOx Conversion Greater than 85% Greater than 70% Doser Injection Status Gradual increase from 10% to 25% Gradual increase from 10% to 30% Intake Manifold pressure DOC must be 270 C (518 F) or higher 21 to 28 kpa (3 to 4 psi) greater than baro Check this when ITV first closes to 88% DOC must be 270 C (518 F) or higher 21 to 28 kpa (3 to 4 psi) greater than baro Check this when ITV first closes to 88% Exhaust Gas mass flow rate Greater than 500 Kg/h Greater than 500 Kg/h 10 All information subject to change without notice. Copyright 2018 DETROIT DIESEL CORPORATION
GHG14 / EPA10 DiagnosticLink Parameters Monitored Parameter GHG14 Typical Reading EPA10 Typical Reading EGR Actual Valve 0 to 5% 5% Delta-P Less than 1.4 kpa (0.2 psi) 0.3 to 0.7 kpa (0.05 to.10 psi) DEF Pressure 965 to 1034 kpa (140 to 150 psi) DEF Pump Speed NA NA 138 to 172 kpa (20 to 25 psi) High pressure could lead to metering unit testing. All information subject to change without notice. 11 Copyright 2018 DETROIT DIESEL CORPORATION