Alternator Control. Dead nailed. MS3 / MS3-Pro / MSPNP-Pro
06-02-2014, 05:29 PM
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Alternator Control. Dead nailed. MS3 / MS3-Pro / MSPNP-Pro
Here is a "leaked" video that I think you guys will appreciate, showing MSPNP-MM0105 alternator control on a 01. This new feature will be included in MS3 firmware soon.
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06-02-2014, 07:48 PM
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so awesome to see this implemented. sad that I don't have a miata to try it on!
does it address the change in MAP at idle as the alternator current increases? that's one thing that always caused me problems. voltage stayed steady but engine speed dipped as load increased to provide more amps.
mind you this is at 900 rpm idle, not 1100...
does it address the change in MAP at idle as the alternator current increases? that's one thing that always caused me problems. voltage stayed steady but engine speed dipped as load increased to provide more amps.
mind you this is at 900 rpm idle, not 1100...
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06-02-2014, 07:55 PM
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so awesome to see this implemented. sad that I don't have a miata to try it on!
does it address the change in MAP at idle as the alternator current increases? that's one thing that always caused me problems. voltage stayed steady but engine speed dipped as load increased to provide more amps.
mind you this is at 900 rpm idle, not 1100...
does it address the change in MAP at idle as the alternator current increases? that's one thing that always caused me problems. voltage stayed steady but engine speed dipped as load increased to provide more amps.
mind you this is at 900 rpm idle, not 1100...
Now go get yourself a Miata.
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06-03-2014, 09:32 AM
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Tell me about how the alternator charges at startup/warmup. I used to get crazy belt squeal when it was enabled at crank because it would see low voltage and think it was time to charge like crazy. But if I disabled it, then flipping it on would be too abrupt. Does the MS algorithm allow a softer engagement after cranking and startup are settled?
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06-03-2014, 06:11 PM
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Tell me about how the alternator charges at startup/warmup. I used to get crazy belt squeal when it was enabled at crank because it would see low voltage and think it was time to charge like crazy. But if I disabled it, then flipping it on would be too abrupt. Does the MS algorithm allow a softer engagement after cranking and startup are settled?
No belt squeal experienced using this mode on my car. I could make the belt squeal using other control methods.
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06-03-2014, 06:22 PM
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Megasquirt MSEXTRA / MS3EFI • MS3 pre-1.3.2 beta 1 released (View topic)
Note that the control mode has been renamed to "high speed field control".
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06-08-2014, 10:20 PM
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There is a hysteretic loop, with a couple of complications on top. Very high speed. minimum "stay in state" is 50uS.
Unsure what you're asking... This is an improvement on a software feature in MS3 EMS. There is no external hardware needed.
I don't have a SPAL fan to try it on, so sorry but no. I tested with other devices, such as power windows (which I had to install on the car as it had no doors). Stock Miata fans don't cause so much as a blip. The response is better than Mazda's control.
Looks good.
Looks good.
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06-10-2014, 08:04 PM
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This feature is available in MS3 1.3.2 Beta firmware and beyond. You will need to ask Rev about compatibility with his ECUs as I believe he incorporates some custom hardware.
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