TableSwitch function

Oscar98 · Post by **Oscar98** » Thu Oct 06, 2016 9:13 am

Could someone tell me how the TableSwitch functions?

Do I just put a switch on the wire and short it to ground when the switch is thrown?

I assume that I can create another set of tables for my MS3X/3.57 to use when the switch is activated.

What are guys using the TableSwitch for? Valet limiting (aka; Ferris Bueller's Day off)

Thank you

Dave

dontz125 · Post by **dontz125** » Thu Oct 06, 2016 10:11 am

Oscar98 wrote:Do I just put a switch on the wire and short it to ground when the switch is thrown?

Yes. If you use one of the pins that are not part of the 3X card, you really really should build a guard circuit to protect the processor pin. (The 3X card includes the guard circuitry on the input pins)

mschlang · Post by **mschlang** » Thu Oct 06, 2016 7:37 pm

I use mine to switch between ve1 and ve3 to tune for e85 before installing a flex fuel sensor.

Oscar98 · Post by **Oscar98** » Fri Oct 07, 2016 2:29 pm

So how do I create a "Valet" calibration?

I was thinking that I could re-calibrate the APS to say 30% being Wide Open Throttle but I am not sure if that calibration would save that way and if it is possible to switch between the two calibrations with the Switch function.

kjones6039 · Post by **kjones6039** » Fri Oct 07, 2016 3:03 pm

Self parking does it for me......

Ken

dontz125 · Post by **dontz125** » Fri Oct 07, 2016 3:07 pm

Leave the TPS calibration where it is, but set the VE cells above 20-30% to 0. Zippy the Wonder Valet tries to go WFO, and the engine simply dies.

racingmini_mtl · Post by **racingmini_mtl** » Fri Oct 07, 2016 5:18 pm

dontz125 wrote:Leave the TPS calibration where it is, but set the VE cells above 20-30% to 0. Zippy the Wonder Valet tries to go WFO, and the engine simply dies.

If you do something like that make sure you use a normal table up to say 30% and then use 30.1% to start with the 0 values. That will avoid having a range where the fueling is not cut but badly lean.

Also, you might want to do the same on the RPM axis with everything normal up to something like 2500 and with 0 at 2501.

Jean

Oscar98 · Post by **Oscar98** » Wed Oct 12, 2016 1:02 pm

Or I guess that I can set the rev limiter at a very low value for that calibration. That way it is still driveable just limited. Don't want it dying if they pull out in traffic etc.

Dave

dontz125 · Post by **dontz125** » Wed Oct 12, 2016 4:12 pm

Why would a valet be pulling out into traffic?

I don't think there is a 'swap rev limit' function ...

Megasquirt Support Forum (MSEXTRA)

TableSwitch function

TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function

Re: TableSwitch function