infineon controller question

[kriskros]

battery,ping v2,36v,12amp....controller 36v,20amp.....motor,bafang......noload speed,19.8mph.98amp...under load max 16,7 mph approx340watts,on the flat....max watts on hill climb approx760.... Q uestion can i set the cycle analyst amp limit to 30amps without damaging the controller??....current setting is 25 amp... i am trying to get alittle more speed...battery is good,approc 1volt sag when throttle fist hit,recovers quickly :?

 

[tostino]

Cycle Analyst can only set the limit down from your controller's limit. It can't raise it.

So if you have a controller with 20a limit, and you set your CA to 15a, than your limit is now 15a. If you set the CA to 25a than your limit is still the same 20a of your controller.

 

[dnmun]

yes, you can reset the CA current limit to 30A or even 40A. the BMS will shut down before that maybe, but even 30A or 40A for a few seconds is ok with 12Ah cells. you can solder up the shunt to get more current through the controller too. up to 30A easily i would expect.

what kinda controller? is this an infineon controller?

 

[kriskros]

yes, the controller is an infineon with direct plug-in.... rshunt is set to 4,5

 

[Takemehome]

I reprogrammed mine to raise the limit from 22 to 29Amps.
I did not modify the shunt.
Been riding for a few days now without problems.
I also raised my speed to 120%. ( 32mph no load or 25mph with me and bags >300lbs )
Motor and controller get just a little warmer than before but not much.

 

[tron]

Is the 4,5 rshunt value for the 72volt infineon or the 48volt?
I'm currently setting up a bike with the 48volt system.

 

[kriskros]

my battery is 36v 12amp... infineon controller is 36v 20amp.... the 4.5 r shunt seems close because the CAcreads.98amp no load

 

[kriskros]

dnum.... tostino says CA can only set controller amps down..... you say contoller can increase amps :? ...somebody please clarify

 

[dnmun]

he said your CA will not allow you to raise the power above what the controller allows. so raise your limit on the CA and the controller will limit the current.

 

[tron]

I'll start a new topic with "known controllers and best Rshunt values for the CA". I read somewhere that someone was working on a list but I'm sure they could use a hand with submissions from all the members. I'm sure Justin would be glad to add it to the new revised operator's manual for the CA. Unfortunately I've got a new CA-DP and have not calibrated it yet therefore... no submissions yet from me.