Common rail diesel discussion thread
Common rail diesel discussion thread
01-28-2020, 07:47 AM
#100
(01-26-2020, 02:33 PM)starynovy So we killed off whole weekend trying to make it work and we did partialy. Managed to get stable boost o 2,1Bar, yes 2 Bar not absolute. And according fuel to it so it should do some 180-190kW on 200CDI. Also managed to kinda tune SOI on hot engine so it doesnt nail or smoke white/blue. But there are serious problems with that ECU going on. Namely:
-water temp modifier maps for MI and PI does not work. Cursor is stuck at 120°C and even changing values under it does absolutely nothing. This means if you tuned SOI maps to hot car it will smoke and not even drive cold. Obviously this needs fixing.
-Crazy jerking. You go say 50km/h on 3rd, revving 1800RPM. You lightly touch pedal to accelerate. Car start to jerk like shit. And we found it is not "app" position changing, thats solid. It is basicaly undriveable. I didnt write SW for this so i dont know how you process and filter fuel request but I guess there are no filters at all and thats why it jerks. You need to implement ramps and mm3/s limiters for app and resulting fuel request. Did not find it anywhere. Its so bad engine mounts are goona rip off so nothing subtle.
-There is some glitch in SW. Car randomly pops in the exhaust like gasser on deceleration. If you hold for example 2000RPM either in netral or driving at random you will get loud sharp pops. I think it glitches and sends some random high opening time to one injector at random SOI.
Untile these get fixed you cannot drive it because there is nothing tuner/user can do to fix.
Water temp modified maps do work. If the cursor is stuck at 120 then the ECU must be indicating a value of 120 or above which means probably sensor is not connected.
There are filters provided to slow pedal response, they are configurable. If you get jerking then that is most likely initiated by rail pressure PID needing tuning. Another possibility is the fuel request map having too much of a slope to it and the drive train initiating an oscillation in engine speed which the fuel map is overcorrecting for.
What you are describing I have not witnessed in the field and I have about 20 cars local to me running the system, including one that I drive every day and it performs flawlessly. What firmware are you running? You must send me some data logs.
Baldur Gislason
(01-26-2020, 02:33 PM)starynovy So we killed off whole weekend trying to make it work and we did partialy. Managed to get stable boost o 2,1Bar, yes 2 Bar not absolute. And according fuel to it so it should do some 180-190kW on 200CDI. Also managed to kinda tune SOI on hot engine so it doesnt nail or smoke white/blue. But there are serious problems with that ECU going on. Namely:
-water temp modifier maps for MI and PI does not work. Cursor is stuck at 120°C and even changing values under it does absolutely nothing. This means if you tuned SOI maps to hot car it will smoke and not even drive cold. Obviously this needs fixing.
-Crazy jerking. You go say 50km/h on 3rd, revving 1800RPM. You lightly touch pedal to accelerate. Car start to jerk like shit. And we found it is not "app" position changing, thats solid. It is basicaly undriveable. I didnt write SW for this so i dont know how you process and filter fuel request but I guess there are no filters at all and thats why it jerks. You need to implement ramps and mm3/s limiters for app and resulting fuel request. Did not find it anywhere. Its so bad engine mounts are goona rip off so nothing subtle.
-There is some glitch in SW. Car randomly pops in the exhaust like gasser on deceleration. If you hold for example 2000RPM either in netral or driving at random you will get loud sharp pops. I think it glitches and sends some random high opening time to one injector at random SOI.
Untile these get fixed you cannot drive it because there is nothing tuner/user can do to fix.
Water temp modified maps do work. If the cursor is stuck at 120 then the ECU must be indicating a value of 120 or above which means probably sensor is not connected.
There are filters provided to slow pedal response, they are configurable. If you get jerking then that is most likely initiated by rail pressure PID needing tuning. Another possibility is the fuel request map having too much of a slope to it and the drive train initiating an oscillation in engine speed which the fuel map is overcorrecting for.
What you are describing I have not witnessed in the field and I have about 20 cars local to me running the system, including one that I drive every day and it performs flawlessly. What firmware are you running? You must send me some data logs.
Baldur Gislason
Messages In This Thread
Common rail diesel discussion thread - by baldur - 01-13-2019, 01:50 PM
RE: Common rail diesel discussion thread - by firen456 - 01-14-2019, 02:24 AM
RE: Common rail diesel discussion thread - by madmog - 01-29-2019, 05:12 PM
RE: Common rail diesel discussion thread - by barrote - 01-14-2019, 03:50 AM
RE: Common rail diesel discussion thread - by baldur - 01-29-2019, 12:45 PM
RE: Common rail diesel discussion thread - by AlanMcR - 01-30-2019, 12:04 AM
RE: Common rail diesel discussion thread - by firen456 - 01-30-2019, 02:56 AM
RE: Common rail diesel discussion thread - by barrote - 01-30-2019, 05:17 AM
RE: Common rail diesel discussion thread - by baldur - 01-30-2019, 06:25 AM
RE: Common rail diesel discussion thread - by starynovy - 02-02-2019, 02:05 PM
RE: Common rail diesel discussion thread - by Turbo - 02-03-2019, 03:02 AM
RE: Common rail diesel discussion thread - by baldur - 02-03-2019, 05:23 PM
RE: Common rail diesel discussion thread - by Motohead1 - 02-03-2019, 08:01 PM
RE: Common rail diesel discussion thread - by starynovy - 02-04-2019, 12:30 PM
RE: Common rail diesel discussion thread - by baldur - 02-04-2019, 04:30 PM
RE: Common rail diesel discussion thread - by engineengineer - 02-06-2019, 01:25 AM
RE: Common rail diesel discussion thread - by baldur - 02-06-2019, 04:40 AM
RE: Common rail diesel discussion thread - by atypicalguy - 02-06-2019, 04:16 AM
RE: Common rail diesel discussion thread - by baldur - 02-06-2019, 04:52 AM
RE: Common rail diesel discussion thread - by Sotvisp - 02-07-2019, 07:42 AM
RE: Common rail diesel discussion thread - by Sotvisp - 02-07-2019, 07:39 AM
RE: Common rail diesel discussion thread - by baldur - 02-07-2019, 08:28 AM
RE: Common rail diesel discussion thread - by baldur - 02-16-2019, 07:17 AM
RE: Common rail diesel discussion thread - by Motohead1 - 03-23-2019, 06:23 PM
RE: Common rail diesel discussion thread - by baldur - 03-24-2019, 12:53 PM
RE: Common rail diesel discussion thread - by Motohead1 - 03-24-2019, 09:34 PM
RE: Common rail diesel discussion thread - by madmog - 03-25-2019, 01:18 PM
RE: Common rail diesel discussion thread - by baldur - 03-26-2019, 05:36 AM
RE: Common rail diesel discussion thread - by madmog - 03-26-2019, 07:41 AM
RE: Common rail diesel discussion thread - by Langstrom - 04-17-2019, 08:49 AM
RE: Common rail diesel discussion thread - by baldur - 04-17-2019, 08:52 AM
RE: Common rail diesel discussion thread - by starynovy - 04-20-2019, 04:53 AM
RE: Common rail diesel discussion thread - by madmog - 05-11-2019, 06:35 AM
RE: Common rail diesel discussion thread - by baldur - 05-12-2019, 06:03 PM
RE: Common rail diesel discussion thread - by madmog - 05-13-2019, 02:14 PM
RE: Common rail diesel discussion thread - by atypicalguy - 07-29-2019, 11:04 PM
RE: Common rail diesel discussion thread - by baldur - 07-30-2019, 02:08 PM
RE: Common rail diesel discussion thread - by atypicalguy - 08-28-2019, 08:08 PM
RE: Common rail diesel discussion thread - by SurfRodder - 09-04-2019, 01:56 AM
RE: Common rail diesel discussion thread - by SurfRodder - 08-13-2019, 11:52 PM
RE: Common rail diesel discussion thread - by SurfRodder - 07-29-2019, 03:41 PM
RE: Common rail diesel discussion thread - by baldur - 08-14-2019, 01:18 PM
RE: Common rail diesel discussion thread - by baldur - 10-15-2019, 08:01 PM
RE: Common rail diesel discussion thread - by atypicalguy - 10-24-2019, 07:03 PM
RE: Common rail diesel discussion thread - by baldur - 10-24-2019, 10:35 PM
RE: Common rail diesel discussion thread - by SurfRodder - 11-03-2019, 08:02 PM
RE: Common rail diesel discussion thread - by orion - 10-31-2019, 06:23 PM
RE: Common rail diesel discussion thread - by baldur - 10-31-2019, 08:14 PM
RE: Common rail diesel discussion thread - by orion - 11-01-2019, 03:32 AM
RE: Common rail diesel discussion thread - by baldur - 11-22-2019, 10:29 AM
RE: Common rail diesel discussion thread - by SurfRodder - 11-23-2019, 11:18 AM
RE: Common rail diesel discussion thread - by 50harleyrider - 01-20-2020, 01:29 PM
RE: Common rail diesel discussion thread - by baldur - 01-20-2020, 02:37 PM
RE: Common rail diesel discussion thread - by Motohead1 - 11-22-2019, 09:52 PM
RE: Common rail diesel discussion thread - by baldur - 11-26-2019, 10:02 AM
RE: Common rail diesel discussion thread - by MartinB - 11-29-2019, 05:34 AM
RE: Common rail diesel discussion thread - by baldur - 11-29-2019, 02:40 PM
RE: Common rail diesel discussion thread - by ecFSE - 11-29-2019, 02:02 PM
RE: Common rail diesel discussion thread - by MartinB - 11-29-2019, 07:57 PM
RE: Common rail diesel discussion thread - by baldur - 11-30-2019, 03:22 AM
RE: Common rail diesel discussion thread - by starynovy - 11-30-2019, 08:19 AM
RE: Common rail diesel discussion thread - by baldur - 11-30-2019, 09:01 AM
RE: Common rail diesel discussion thread - by MTUPower - 12-01-2019, 09:15 AM
RE: Common rail diesel discussion thread - by baldur - 12-01-2019, 09:36 AM
RE: Common rail diesel discussion thread - by Sotvisp - 12-03-2019, 02:43 AM
RE: Common rail diesel discussion thread - by baldur - 12-03-2019, 08:30 AM
RE: Common rail diesel discussion thread - by MartinB - 12-03-2019, 06:16 PM
RE: Common rail diesel discussion thread - by baldur - 12-04-2019, 03:29 AM
RE: Common rail diesel discussion thread - by AlanMcR - 12-04-2019, 04:55 PM
RE: Common rail diesel discussion thread - by baldur - 12-04-2019, 06:28 PM
RE: Common rail diesel discussion thread - by baldur - 12-09-2019, 06:34 PM
RE: Common rail diesel discussion thread - by MTUPower - 12-10-2019, 07:28 PM
RE: Common rail diesel discussion thread - by baldur - 12-11-2019, 06:30 AM
RE: Common rail diesel discussion thread - by Drewkeen - 12-11-2019, 10:40 AM
RE: Common rail diesel discussion thread - by Sotvisp - 12-12-2019, 08:46 AM
RE: Common rail diesel discussion thread - by baldur - 12-12-2019, 10:18 AM
RE: Common rail diesel discussion thread - by MTUPower - 12-13-2019, 06:04 PM
RE: Common rail diesel discussion thread - by baldur - 12-13-2019, 08:16 PM
RE: Common rail diesel discussion thread - by atypicalguy - 01-01-2020, 02:15 PM
RE: Common rail diesel discussion thread - by baldur - 01-01-2020, 05:33 PM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 08:16 AM
RE: Common rail diesel discussion thread - by baldur - 01-19-2020, 09:44 AM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 12:37 PM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 12:38 PM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:00 PM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:16 PM
RE: Common rail diesel discussion thread - by baldur - 01-19-2020, 01:38 PM
RE: Common rail diesel discussion thread - by starynovy - 01-19-2020, 01:54 PM
RE: Common rail diesel discussion thread - by baldur - 01-20-2020, 03:48 PM
RE: Common rail diesel discussion thread - by INC - 01-21-2020, 02:24 PM
RE: Common rail diesel discussion thread - by atypicalguy - 01-21-2020, 07:47 PM
RE: Common rail diesel discussion thread - by diesel1972 - 01-22-2020, 05:54 AM
RE: Common rail diesel discussion thread - by starynovy - 01-24-2020, 04:31 PM
RE: Common rail diesel discussion thread - by diesel1972 - 01-25-2020, 06:49 AM
RE: Common rail diesel discussion thread - by starynovy - 01-26-2020, 02:33 PM
RE: Common rail diesel discussion thread - by baldur - 01-28-2020, 07:47 AM
RE: Common rail diesel discussion thread - by diesel1972 - 01-26-2020, 05:03 PM
RE: Common rail diesel discussion thread - by starynovy - 01-26-2020, 06:40 PM
RE: Common rail diesel discussion thread - by diesel1972 - 01-27-2020, 03:39 AM
RE: Common rail diesel discussion thread - by 50harleyrider - 01-27-2020, 06:47 PM
RE: Common rail diesel discussion thread - by starynovy - 01-28-2020, 10:11 AM
RE: Common rail diesel discussion thread - by Turbo - 02-10-2020, 04:29 PM
RE: Common rail diesel discussion thread - by starynovy - 02-12-2020, 08:13 AM
RE: Common rail diesel discussion thread - by Turbo - 02-20-2020, 09:13 AM
RE: Common rail diesel discussion thread - by Grecy - 03-19-2020, 08:40 PM
RE: Common rail diesel discussion thread - by baldur - 03-20-2020, 08:03 AM
RE: Common rail diesel discussion thread - by Grecy - 03-20-2020, 01:45 PM
RE: Common rail diesel discussion thread - by baldur - 03-20-2020, 06:36 PM
RE: Common rail diesel discussion thread - by Grecy - 03-20-2020, 07:54 PM
RE: Common rail diesel discussion thread - by diesel1972 - 03-22-2020, 12:27 PM
RE: Common rail diesel discussion thread - by baldur - 03-31-2020, 06:34 PM
RE: Common rail diesel discussion thread - by SurfRodder - 04-13-2020, 03:20 PM
RE: Common rail diesel discussion thread - by baldur - 04-13-2020, 06:16 PM
RE: Common rail diesel discussion thread - by SurfRodder - 05-26-2020, 10:36 AM
RE: Common rail diesel discussion thread - by atypicalguy - 08-14-2020, 09:30 AM
RE: Common rail diesel discussion thread - by baldur - 04-13-2020, 07:02 PM
RE: Common rail diesel discussion thread - by 50harleyrider - 09-09-2020, 08:01 PM
RE: Common rail diesel discussion thread - by baldur - 10-15-2020, 06:27 PM
RE: Common rail diesel discussion thread - by Grecy - 10-17-2020, 11:57 PM
RE: Common rail diesel discussion thread - by baldur - 10-19-2020, 06:39 AM
RE: Common rail diesel discussion thread - by atypicalguy - 02-05-2021, 10:42 AM
RE: Common rail diesel discussion thread - by baldur - 02-05-2021, 06:06 PM
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