MS3 hardware and commonisation

[Quan-Time]

Fuel level indicator.
From what i understand, theres 2 main options. "TPS" style and voltage style, 0v - 5v. Is it possible to make a "universal pin placement" for this ? Meaning that, for installers, no matter which style of pump you have, there will be a dedicated spot, providing you config it properly. Is that an option ? Mine personally ranges from 13ohm to 130ohm. Id really like an option where i can "calibrate" it much as the TPS is done.. Its 2 wire.

Is something like this possible at this stage, or a bit late ?

[Black99rt]

Fuel level indicator.
From what i understand, theres 2 main options. "TPS" style and voltage style, 0v - 5v. Is it possible to make a "universal pin placement" for this ? Meaning that, for installers, no matter which style of pump you have, there will be a dedicated spot, providing you config it properly. Is that an option ? Mine personally ranges from 13ohm to 130ohm. Id really like an option where i can "calibrate" it much as the TPS is done.. Its 2 wire.

Is something like this possible at this stage, or a bit late ?

Sounds like a good idea to me, I like the idea to be able to calibrate it.

[jsmcortina]

I don't want to be a kill-joy here, but could you explain what this achieves? The gauge on the dash has always worked for me...

James

[Quan-Time]

I dont have one, and 99% of motorbikes dont have one.
A fair few people showed interest in an option to do this. Mainly seeking a "full digital dash" setup from what i found in the msextra forums.
Some people have played with "fuel consumption" gauges amongst other things. With a fuel level sensor, could make some fairly cool "distance remaining" trip meter setups.
Hey, its just an idea, understand if its too much hassle to do, theres "real" dev work to be done and im glad someone is even doing this in the first place. I just noticed there was some interest in it on the forums. "standardisation" of an input would be nice. Speedo would also be awesome, but thats cutting into spare sensor inputs.

[muythaibxr]

Vehicle speed sensor is actually more useful than the fuel gauge... It makes several things a lot easier, such as deciding when to go into closed-loop idle. Just go into closed-loop when the car stops (that's how more modern cars with VSS work).

Ken

[arlo#1]

Vehicle speed sensor is actually more useful than the fuel gauge... It makes several things a lot easier, such as deciding when to go into closed-loop idle. Just go into closed-loop when the car stops (that's how more modern cars with VSS work).

Ken

Vehicle speed sensor can be used to figure out things like when to come off launch control, to activate flatshift, for traction control, calculating Hp curves and lots more stuff. I would like the vss much more, but I also have a 69 dodge with a new fuel sending unit that reads 3/4 tank at full so a calibration for that would be cool but not the biggest deal

[Quan-Time]

Vehicle speed sensor is actually more useful than the fuel gauge... It makes several things a lot easier, such as deciding when to go into closed-loop idle. Just go into closed-loop when the car stops (that's how more modern cars with VSS work).

Ken

Did you read my idea about having a push bike speedo sensor ? Magnet on rim / tail shaft / somewhere, switch sensor, 1 rev is Y distance. Just count the ticks on a circuit closing.. VERY cheap and no voltage / current to worry about. All you are doing is tick counting. From there someone (or possibly me) could add some average speed, best, OD, trip, etc.. useful for lap timing on circuit riding (or driving for most people). With OD, and fuel tank sensor, could have trip remaining, etc..

Ive seen it done before on a car build, and it worked great. I personally use a pushbike atm, only because i dont have those features on a stock dash. Id like the ability for it to be implimented. Mainly for those without a VSS unit, im sure theres quite a few.

[muythaibxr]

Ken Vehicle speed sensor can be used to figure out things like when to come off launch control, to activate flatshift, for traction control, calculating Hp curves and lots more stuff. I would like the vss much more, but I also have a 69 dodge with a new fuel sending unit that reads 3/4 tank at full so a calibration for that would be cool but not the biggest deal

Yep, that's what I was getting at.

Ken

[arlo#1]

Vehicle speed sensor is actually more useful than the fuel gauge... It makes several things a lot easier, such as deciding when to go into closed-loop idle. Just go into closed-loop when the car stops (that's how more modern cars with VSS work).

Ken

Did you read my idea about having a push bike speedo sensor ? Magnet on rim / tail shaft / somewhere, switch sensor, 1 rev is Y distance. Just count the ticks on a circuit closing.. VERY cheap and no voltage / current to worry about. All you are doing is tick counting. From there someone (or possibly me) could add some average speed, best, OD, trip, etc.. useful for lap timing on circuit riding (or driving for most people). With OD, and fuel tank sensor, could have trip remaining, etc..

Ive seen it done before on a car build, and it worked great. I personally use a pushbike atm, only because i dont have those features on a stock dash. Id like the ability for it to be implimented. Mainly for those without a VSS unit, im sure theres quite a few.

There will be alot of guys who are going to add the Vehicle speed into there ecu's so they will have to mount something like you said but in all reality a vr sensor with a sensing location on an axle, drive shaft, rotor, or transmission output. It could sense a toothed wheel or just bolt heads that already exist. But I would rather have the info in my MS box for multiple reasons (mentioned earlier). It would make far more sense to have the fuel gauge an external kit then the VSS.

[Tetzuoe]

Id be interested in any kind of VSS feature, my build replaced the old spindles so the speedo cable has been replaced with useless ABS sensors.... this would save me from making a separate box to turn an ABS sensor into the signal needed for the new gauge.

[roarin_mouse]

Hopefully, Megatune will add the necessary functions so that a TCC lock and unlock curve can be easily implemented. I like my 700r4 but would like to add computer controlled lockup as a function of TPS and VSS and it would be a practical addition (to the hardware as well as the tuning software). Any other 700R4 folks out there?

[muythaibxr]

TCC lockup has nothing to do with megatune, or ms3 for that matter. MS3 isn't going to control transmissions either, although it'll talk over CAN bus to James' microsquirt-based transmission controller, or to the GPIO one.

EDIT: James tells me that this isn't like the 4L80 etc... and we only need one medium current pin. We could control that, but I doubt we'll assign a pin to it by default...

Ken

[jsmcortina]

If you have some data on how you think this lockup should be performed, please post it and we can take a look to see whether it gets included at this stage.

James

[roarin_mouse]

What I have in mind is an equation for lock-up and another for unlock where the only difference between the two is a constant. For the "Lock" equation we could have: Lock if TPS<(256-(7373/SPEED)-K1)/2.55. K1 would be a user-settable constant. I used the value 60 (base 10). The "Unlock" equation would be the same except it would read: Unlock if TPS>(256-(7373/SPEED)-K2)/2.55. I used 10 (base 10) FOR k2. Along with these, a user-settable minimum lock speed would be nice. The resultant curve would look like the attached image.

[UnaClocker]

Yeah, once you have VSS input, it'd be really nice to toss in a lockup TC control. So toss in my support for this pretty basic feature.

[krisr]

With a VSS input, surely a TCC lockup could be controlled under the "Spare Port" settings? I thought the TH700's lockup by energizing the solenoid or vice versa? Could do either with a relay and low current if that's the case. I could be wrong though

[muythaibxr]

Yeah, I'm sure a spare port could do the trick, which is why I'm saying we won't dedicate a standard output to this function. Any of the mid/high current drivers could do it, so it'll be one of the selectable features.

Ken

[arlo#1]

I have curently got the spare output port settings to control the overdrive solinoid for my tranny I just upgraded to. But a little section dedicated to it would be cool for me it is just one solinoid to turn on for OD (I am looking for the same tranny with a lockup TC which is just another soliniod) I think these simple trannys sould be able to have a little setion in megatune there is nothing to them realy. but someone who needs full tranny control will need to use gripo or something. I programed mine with the rpm or port0 and in port0 rpm/advance but it is/was tricky to find a way than gears down out of OD on decel at low speeds and out of OD at WOT but onece in OD at higher rpm I will not come out (causing the engine to overrev) Even now I would much rather have a little program just for it I tried to write code but I don't understand in enough!

[LT401Vette]

A simple VSS add-on circuit would be really helpful. I was really hoping for that circuit to be on the MS3X as it allows for a lot. Even beyond the firmware capabilities, you can do a lot in the software for HP & TQ plotting, Time to distance, Time to Speed...

A built in G-Tech with just a VSS.

[muythaibxr]

Unfortunately it wasn't built into the hardware, but we will support using one of the inputs for this.

Ken