Needing torque control
Moderators: jsmcortina, muythaibxr
-
- Experienced MS/Extra'er
- Posts: 301
- Joined: Fri Nov 23, 2012 3:17 pm
Needing torque control
Looking to be able to cut power during shift, such as retarding timing at the shift point and it must be able to be ramped back in, not just a cut and then back on.
Fastest MS powered vehicle on the planet ! 6.60@208mph
Re: Needing torque control
It is quite often used in race cars with dog box transmissions. A full spark cut is a little bit hard on the transmission. It should be simple to add spark retard in the firmware to sequential shift cut setting.
Re: Needing torque control
Yes A retard after shift would be extremely useful!
Re: Needing torque control
Is this a possibility? Can this be added to current code with out a major code rewrite?
-
- Experienced MS/Extra'er
- Posts: 301
- Joined: Fri Nov 23, 2012 3:17 pm
Re: Needing torque control
Would also like Torque Control for driveline target speed. I am going to switch ECU's if this can't be available in the next month or so.
Fastest MS powered vehicle on the planet ! 6.60@208mph
-
- Helpful MS/Extra'er
- Posts: 102
- Joined: Mon Apr 27, 2009 5:02 am
- Location: Munster, Germany
- Contact:
Re: Needing torque control
Yes, we need this...
Wasn't the first request of this kind http://www.msextra.com/forums/viewtopic ... 25&t=67369
Wasn't the first request of this kind http://www.msextra.com/forums/viewtopic ... 25&t=67369
Race car building documentation: www.kessel.tk (nice pics but only german laguage so far...)
Re: Needing torque control
Although I agree all the "bones" to implement this as a feature are already in place (and it could be easy/useful), there is a bit of a workaround available to do this if you wanted/needed it in the meantime.
The "on/off" based knock control could be used to do this. It could either be tied directly to a physical input, or a software loop. All the required retard and recovery timers and tuning parameters you would need are already there. Not saying a simple "retard to" and "recovery time" tied to either flatshfit or sequential shift cut would not be a better way to accomplish this, simply explaining how the same thing can be accomplished via existing features in the mean time.
The "on/off" based knock control could be used to do this. It could either be tied directly to a physical input, or a software loop. All the required retard and recovery timers and tuning parameters you would need are already there. Not saying a simple "retard to" and "recovery time" tied to either flatshfit or sequential shift cut would not be a better way to accomplish this, simply explaining how the same thing can be accomplished via existing features in the mean time.
86 Rx-7, swapped to 2.3 ford turbo (BW EFR 6758), ms3/ms3x sequential fuel /waste spark, ls2 coils
88 Tbird 2.3t, Microsquirt Module (PIMP), TFI ignition
88 Tbird 2.3t, Microsquirt Module (PIMP), TFI ignition
-
- Experienced MS/Extra'er
- Posts: 301
- Joined: Fri Nov 23, 2012 3:17 pm
Re: Needing torque control
Any luck on this yet ? It's all most race season.
Fastest MS powered vehicle on the planet ! 6.60@208mph
-
- MS/Extra Newbie
- Posts: 10
- Joined: Thu Apr 14, 2016 10:29 am
Re: Needing torque control
I need this too.
Could I switch ignition maps during a shift? That way i could have a variable "ignition retard" based on load. would that work?
Could I switch ignition maps during a shift? That way i could have a variable "ignition retard" based on load. would that work?
-
- Master MS/Extra'er
- Posts: 581
- Joined: Sat May 10, 2014 4:57 am
- Location: New Haven, Ct, USA
Re: Needing torque control
Using torque could be helpful for alot of things, including power management
BootlegTuned
Re: Needing torque control
It would be very useful feature.
-
- Master MS/Extra'er
- Posts: 581
- Joined: Sat May 10, 2014 4:57 am
- Location: New Haven, Ct, USA
Re: Needing torque control
I don't think most people understand how complex torque control is. It's not something "you can add". The ECU needs to be built from scratch around torque control and yes, DBW is almost mandatory for proper torque control.
The man behind MS Labs
2005 Audi A3 2.0L TFSI DSG AWD - Extreme MS3
2002 Mazda Miata 1.8 6sp - Enhanced MS3 1.4.0, sequential injection, sequential ignition, big turbo, lots of boost
2005 Audi A3 2.0L TFSI DSG AWD - Extreme MS3
2002 Mazda Miata 1.8 6sp - Enhanced MS3 1.4.0, sequential injection, sequential ignition, big turbo, lots of boost
-
- Super MS/Extra'er
- Posts: 1978
- Joined: Wed Apr 15, 2009 11:31 am
- Location: Oxford, PA
- Contact:
Re: Needing torque control
Most of the ecus I tune that have torque control I want to throw out the window.
-
- Master MS/Extra'er
- Posts: 581
- Joined: Sat May 10, 2014 4:57 am
- Location: New Haven, Ct, USA
Re: Needing torque control
i agree for stock ecu's. What a night mare.Paul_VR6 wrote:Most of the ecus I tune that have torque control I want to throw out the window.
BootlegTuned
-
- Experienced MS/Extra'er
- Posts: 372
- Joined: Sat Dec 31, 2011 6:10 am
- Location: Netherlands
- Contact:
Re: Needing torque control
Why not put lower advance numbers in the timing table at the high (shift) rpms where the engine sees less loads?
Or a timing table switch which is activated by the clutch or a transmission pressure sender?
Or does one need the timing change right before the shift starts?
Just spawning some ideas here, but I get if it was that easy if wouldn't have been a needed feature.
Or a timing table switch which is activated by the clutch or a transmission pressure sender?
Or does one need the timing change right before the shift starts?
Just spawning some ideas here, but I get if it was that easy if wouldn't have been a needed feature.
Daily driver: 1973 Dodge Dart - 360ci engine - 11.3:1cr - MS3x - ignition only. 42RH/A500 OD+LU transmission / 3.23 gears
--------------
Website: https://www.bigblockmopar.nl/
YouTube Channel: https://www.youtube.com/c/BigBlockMopar
--------------
Website: https://www.bigblockmopar.nl/
YouTube Channel: https://www.youtube.com/c/BigBlockMopar
-
- Experienced MS/Extra'er
- Posts: 301
- Joined: Fri Nov 23, 2012 3:17 pm
Re: Needing torque control
Timing needs to be pulled as it starts to shift and ramp back in as it completes the shift. And different amounts for different gears
Fastest MS powered vehicle on the planet ! 6.60@208mph
-
- Experienced MS/Extra'er
- Posts: 301
- Joined: Fri Nov 23, 2012 3:17 pm
Re: Needing torque control
Any luck with this yet ?
Fastest MS powered vehicle on the planet ! 6.60@208mph
-
- Helpful MS/Extra'er
- Posts: 142
- Joined: Thu Oct 18, 2012 6:20 pm
Re: Needing torque control
Im also pretty keen on this
Sent from my SM-G965F using Tapatalk
Sent from my SM-G965F using Tapatalk
Re: Needing torque control
it could be nice to have this function implemented. I have an autogearbox that is too hard on shifts, also sometimes when changing from 2 to 3 gear it wheelspins if turbo is loaded. If i could de-torque when shifting could be much nicer to drive. My TCU controller for 722.6 gearbox can give me an output when shifting.
Tried ignition cut on changes, but it's excessive.
I would like to see a new option that could enable configuration like:
- ignition retard - x degrees
- Boost cut, set boost control to 0%
In ms2 when needing special functions i modded the firmware and tunerstudio profile, but for ms3 i don't see last firmware source code, only 1.4.x
Tried ignition cut on changes, but it's excessive.
I would like to see a new option that could enable configuration like:
- ignition retard - x degrees
- Boost cut, set boost control to 0%
In ms2 when needing special functions i modded the firmware and tunerstudio profile, but for ms3 i don't see last firmware source code, only 1.4.x
Ford Sierra 2.0i 16v turbo, W124 3.2 24v turbo| both megasquirt 3