Pumped to try this out.
feature request, pwm fan control
Moderators: jsmcortina, muythaibxr
Re: feature request, pwm fan control
Nice!
Pumped to try this out.
Pumped to try this out.
Re: feature request, pwm fan control
Been out of the game for a good bit, and this is something I've been wanting to do since my fan has such a huge inrush load (MVIII). Which release is this?
84 SVO 9W HE351 Holset, B234F, custom intake, header, FMIC, MS3
96 Cheromanche5.3/400,231,exocaged, HP Tuners
96 Cheromanche5.3/400,231,exocaged, HP Tuners
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fpvmustang
- Helpful MS/Extra'er
- Posts: 109
- Joined: Sat Oct 13, 2012 11:17 pm
- Location: Quincy CA. USA
Re: feature request, pwm fan control
like to see
min duty AC
added instead of using full speed I only need 20% duty on a hot day
other then that works perfect on 1.6.0 release
thank you
min duty AC
added instead of using full speed I only need 20% duty on a hot day
other then that works perfect on 1.6.0 release
thank you
33 psi boost on lpg
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5.0Thunder
- Experienced MS/Extra'er
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- Joined: Sat Mar 07, 2015 4:46 pm
Re: feature request, pwm fan control
So does this feature linearly increase duty between the on temp and the full speed temp? I figure the whole purpose of PWM is to be able to slowly accelerate the fan speed so figured does the On temp run minimum duty and full speed run maximum duty, and everything in between interpolated?
1990 Mustang: MS3Pro Gen 1, 306ci, 72mm turbo, 80lb inj, 36-1 + Cam Sync + D585 coils, World heads, TFS1 cam, GT40 intake, auto, Speed Density
1987 Mustang: MS2v3.57, direct coil control, MSD VR Dizzy, SBE, Weiand 174,190cc heads, F303 cam, TBI w/ (4) 160lb inj, GT500 MAF
1987 Mustang: MS2v3.57, direct coil control, MSD VR Dizzy, SBE, Weiand 174,190cc heads, F303 cam, TBI w/ (4) 160lb inj, GT500 MAF
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jsmcortina
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Re: feature request, pwm fan control
Yes, that's what it does. The soft-start should be easier on your alternator and prevent sudden voltage drops.5.0Thunder wrote: ↑Fri Mar 22, 2024 8:12 am So does this feature linearly increase duty between the on temp and the full speed temp? I figure the whole purpose of PWM is to be able to slowly accelerate the fan speed so figured does the On temp run minimum duty and full speed run maximum duty, and everything in between interpolated?
James
I can repair or upgrade Megasquirts in UK. http://www.jamesmurrayengineering.co.uk
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
My Success story: http://www.msextra.com/forums/viewtopic ... 04&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
New users, please read the "Forum Help Page".
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lowkeyturbo
- MS/Extra Newbie
- Posts: 14
- Joined: Tue Dec 21, 2021 6:34 am
Re: feature request, pwm fan control
I am making a controller for this. I just don't know when it it be ready.
Currently can be trigger via, low side pwm, high side pwm, a trigger signal @ 5V, 0-5V, a thermistor with built in 3d map for automatic turining onn/off and Serial/UART.
Maybe I will add a CANBUS option -> this will increase price a bit, but will still be pretty inexpensive.
The issue with this some fans are really high current and I am not sure megasquirt has the mosfets required to control a fan. The signal of the FAN since is such high current can pollute the GND plane
Currently can be trigger via, low side pwm, high side pwm, a trigger signal @ 5V, 0-5V, a thermistor with built in 3d map for automatic turining onn/off and Serial/UART.
Maybe I will add a CANBUS option -> this will increase price a bit, but will still be pretty inexpensive.
The issue with this some fans are really high current and I am not sure megasquirt has the mosfets required to control a fan. The signal of the FAN since is such high current can pollute the GND plane