Inverter Firmware v4.87.R

[damian.lo]

Later, when I will back to home I will send parameters from old and new firmware to comparision. It can be like this, that after upgrade some parameters are by default off?

From another thread - my BMW 116 is officially approved and I have already green plates so thank You and all of guys for support more info in my project.

[fransoa]

Hi,
I'm having a similar problem. I went from the 4.57 version to the 4.87 on a Tesla LDU and I have the same problem: no more regen. I checked all the settings: everything seems normal and the update has retained the initial values. Back to version 4.85 with "flim = 0.3": no regen, back to version 4.76: erroneous inverter temperature! I'm stuck. Unless a return to version 4.57 ?

[jon volk]

I’m on 4.85 and don’t have any regen issues. Mine is driven off a brake pressure transducer so I can’t comment on throttle off regen.

[johu]

Would be good if you post your parameter files and a screenshot of spot values while in Run mode (I should really add a facility to post spot values as well)

[fransoa]

These are my settings. New tests: same result. potnom is always >= 0.
I handed the 4.57 version to get some regen

{
"boost": 1850,
"fweak": 258,
"fconst": 450,
"udcnom": 350,
"fslipmin": 1.31,
"fslipmax": 3.03,
"fslipconstmax": 9,
"polepairs": 2,
"respolepairs": 1,
"encmode": 1,
"fmax": 500,
"numimp": 36,
"dirchrpm": 300,
"dirmode": 1,
"snsm": 12,
"pwmfrq": 1,
"pwmpol": 0,
"deadtime": 63,
"ocurlim": -2500,
"il1gain": -1,
"il2gain": -1,
"udcgain": 7.5,
"udcofs": 0,
"udclim": 400,
"snshs": 0,
"bmslimhigh": 100,
"bmslimlow": -20,
"udcmin": 300,
"udcmax": 400,
"idcmax": 5000,
"idcmin": -5000,
"tmphsmax": 85,
"tmpmmax": 300,
"throtmax": 100,
"throtmin": -100,
"iacmax": 5000,
"ifltrise": 10,
"ifltfall": 3,
"chargemode": 0,
"chargecur": 0,
"chargekp": 80,
"chargeki": 10,
"chargeflt": 8,
"chargemax": 90,
"potmin": 50,
"potmax": 4095,
"pot2min": 4095,
"pot2max": 4095,
"potmode": 0,
"throtramp": 5,
"throtramprpm": 20000,
"ampmin": 0.34,
"slipstart": 50,
"brknompedal": -25,
"regenramp": 5,
"brknom": 30,
"brkmax": -25,
"brkcruise": -30,
"brkrampstr": 20,
"brkhistr": 1000,
"brkhistp": 1000,
"brkout": -50,
"idlespeed": 150,
"idlethrotlim": 50,
"idlemode": 1,
"speedkp": 0.37,
"speedflt": 7,
"cruisemode": 1,
"udcsw": 0,
"udcswbuck": 0,
"tripmode": 0,
"pwmfunc": 0,
"pwmgain": 100,
"pwmofs": 0,
"canspeed": 0,
"canperiod": 0,
"fslipspnt": 0.84,
"ampnom": 0.34,
"version": 4,
"hwver": 3,
"opmode": 0,
"lasterr": 0,
"status": 256,
"udc": 5.31,
"idc": 0.12,
"il1": -3,
"il2": 3,
"ilmax": 3,
"uac": 0.12,
"il1rms": 3.96,
"il2rms": 4.93,
"boostcalc": 59200,
"fweakcalc": 8.06,
"fstat": 0.84,
"speed": 0,
"cruisespeed": -1,
"turns": 34,
"amp": 1704,
"angle": 24.62,
"pot": 19,
"pot2": 21,
"potnom": 0,
"dir": 0,
"tmphs": 28.75,
"tmpm": 34.53,
"uaux": 16.43,
"pwmio": 1536,
"canio": 0,
"din_cruise": 0,
"din_start": 0,
"din_brake": 0,
"din_mprot": 1,
"din_forward": 0,
"din_reverse": 0,
"din_emcystop": 1,
"din_ocur": 1,
"din_desat": 1,
"din_bms": 0,
"cpuload": 1.09
}

[johu]

udc is near zero, can you repeat with inverter actually in RUN mode?
Otherwise I don't see anything unusual just yet

EDIT: two things I spotted:
idclim is very low at 400V and might cause unwanted overvoltage trips
I don't see forward or reverse selected

[fransoa]

Hi, these parameters are saved on road : throttle up, in waiting from regen.

{
"boost": 1850,
"fweak": 258,
"fconst": 450,
"udcnom": 350,
"fslipmin": 1.31,
"fslipmax": 3.03,
"fslipconstmax": 9,
"polepairs": 2,
"respolepairs": 1,
"encmode": 1,
"fmax": 500,
"numimp": 36,
"dirchrpm": 300,
"dirmode": 1,
"snsm": 12,
"pwmfrq": 1,
"pwmpol": 0,
"deadtime": 63,
"ocurlim": -5000,
"il1gain": -1,
"il2gain": -1,
"udcgain": 7.5,
"udcofs": 0,
"udclim": 400,
"snshs": 0,
"bmslimhigh": 100,
"bmslimlow": -20,
"udcmin": 300,
"udcmax": 400,
"idcmax": 5000,
"idcmin": -5000,
"tmphsmax": 85,
"tmpmmax": 300,
"throtmax": 100,
"throtmin": -50,
"iacmax": 5000,
"ifltrise": 10,
"ifltfall": 3,
"chargemode": 0,
"chargecur": 0,
"chargekp": 80,
"chargeki": 10,
"chargeflt": 8,
"chargemax": 90,
"potmin": 50,
"potmax": 4095,
"pot2min": 4095,
"pot2max": 4095,
"potmode": 0,
"throtramp": 5,
"throtramprpm": 20000,
"ampmin": 0.34,
"slipstart": 50,
"brknompedal": -40,
"regenramp": 5,
"brknom": 30,
"brkmax": -40,
"brkcruise": -30,
"brkrampstr": 20,
"brkhistr": 1000,
"brkhistp": 1000,
"brkout": -50,
"idlespeed": 150,
"idlethrotlim": 50,
"idlemode": 1,
"speedkp": 0.37,
"speedflt": 7,
"cruisemode": 1,
"udcsw": 0,
"udcswbuck": 0,
"tripmode": 0,
"pwmfunc": 0,
"pwmgain": 100,
"pwmofs": 0,
"canspeed": 0,
"canperiod": 0,
"fslipspnt": -1.31,
"ampnom": 0,
"version": 4,
"hwver": 3,
"opmode": 1,
"lasterr": 0,
"status": 0,
"udc": 383.59,
"idc": 0,
"il1": 3,
"il2": 1,
"ilmax": 5,
"uac": 0,
"il1rms": 6.96,
"il2rms": 5.37,
"boostcalc": 1691.4,
"fweakcalc": 282.18,
"fstat": 22.25,
"speed": 706,
"cruisespeed": -1,
"turns": 141,
"amp": 0,
"angle": 73.43,
"pot": 18,
"pot2": 20,
"potnom": -0.03,
"dir": 1,
"tmphs": 31.87,
"tmpm": 40.62,
"uaux": 16.43,
"pwmio": 1024,
"canio": 0,
"din_cruise": 0,
"din_start": 0,
"din_brake": 0,
"din_mprot": 1,
"din_forward": 1,
"din_reverse": 0,
"din_emcystop": 1,
"din_ocur": 1,
"din_desat": 1,
"din_bms": 0,
"cpuload": 25.09
}

[johu]

Can you temporarily disable the idle speed controller?

[fransoa]

I tried this without a good result just by putting idlespeed=0
I'm going to do the test again as soon as I'm at the workshop by putting idlemode=3.
For information: if I have my foot on the brake (din_brake=1) there is no regen either.

[fransoa]

Hi, test done: idlemode=3 and idlespeed=0. Still no regen

[fransoa]

Hi, test done: idlemode=3 and idlespeed=0. Still no regen

[johu]

Ok, more debugging needed.
I have attached a firmware that will display the various values of potnom as it trickles through the processing pipeline. Can you get to the state where it should regen, but doesn't and then post the values of potnom1...7 and potnom?

[fransoa]

I'm doing the test quickly.
I recently encountered on a vehicle that worked well the following problem: quite often I can not pass the inverter in START because of an overCURRENT error. it's totally random, the temperature doesn't do anything and I can't find the cause. I searched the source code for the causes of this error when the engine is shutdown and no current is consumed. If you have a idea... this noon the vehicle is stopped on this error

[johu]

I'm doing the test quickly.
I recently encountered on a vehicle that worked well the following problem: quite often I can not pass the inverter in START because of an overCURRENT error. it's totally random, the temperature doesn't do anything and I can't find the cause. I searched the source code for the causes of this error when the engine is shutdown and no current is consumed. If you have a idea... this noon the vehicle is stopped on this error

Gate driver errors also report as OVERCURRENT, I reckon it's that

[fransoa]

Do you think the problem is the inverter, the electronic card or the wiring? If the inverter starts, the vehicle works very well as long as you don't stop the inverter. It is impossible to determine the result of the START, if it fail, we wait a few minutes or few hours and it works again. I controlled the internal temperatures and electronic card temperatures: everything seems okay. Now I can not do the test of your version because START does not pass ...

[fransoa]

We are lucky for this time, i have the data brake and throttle pedals up :
{
"boost": 1850,
"fweak": 258,
"fconst": 450,
"udcnom": 350,
"fslipmin": 1.31,
"fslipmax": 3.03,
"fslipconstmax": 9,
"polepairs": 2,
"respolepairs": 1,
"encmode": 1,
"fmax": 500,
"numimp": 36,
"dirchrpm": 300,
"dirmode": 1,
"snsm": 12,
"pwmfrq": 1,
"pwmpol": 0,
"deadtime": 63,
"ocurlim": -5000,
"il1gain": -1,
"il2gain": -1,
"udcgain": 7.5,
"udcofs": 0,
"udclim": 450,
"snshs": 0,
"bmslimhigh": 100,
"bmslimlow": -20,
"udcmin": 300,
"udcmax": 400,
"idcmax": 5000,
"idcmin": -5000,
"tmphsmax": 85,
"tmpmmax": 300,
"throtmax": 100,
"throtmin": -50,
"iacmax": 5000,
"ifltrise": 10,
"ifltfall": 3,
"chargemode": 0,
"chargecur": 0,
"chargekp": 80,
"chargeki": 10,
"chargeflt": 8,
"chargemax": 90,
"potmin": 50,
"potmax": 4095,
"pot2min": 4095,
"pot2max": 4095,
"potmode": 0,
"throtramp": 5,
"throtramprpm": 20000,
"ampmin": 0.34,
"slipstart": 50,
"brknompedal": -40,
"regenramp": 5,
"brknom": 30,
"brkmax": -40,
"brkcruise": -30,
"brkrampstr": 20,
"brkhistr": 1000,
"brkhistp": 1000,
"brkout": -50,
"idlespeed": 150,
"idlethrotlim": 50,
"idlemode": 1,
"speedkp": 0.37,
"speedflt": 7,
"cruisemode": 1,
"udcsw": 0,
"udcswbuck": 0,
"tripmode": 0,
"pwmfunc": 0,
"pwmgain": 100,
"pwmofs": 0,
"canspeed": 0,
"canperiod": 0,
"fslipspnt": -1.31,
"ampnom": 0,
"version": 4,
"hwver": 3,
"opmode": 1,
"lasterr": 0,
"status": 0,
"udc": 385.31,
"idc": 0,
"il1": -2,
"il2": 1,
"ilmax": 1,
"uac": 0,
"il1rms": 6,
"il2rms": 6.03,
"boostcalc": 1691.4,
"fweakcalc": 282.18,
"fstat": 20.87,
"speed": 750,
"cruisespeed": -1,
"turns": 1971,
"amp": 0,
"angle": 176.09,
"pot": 19,
"pot2": 21,
"potnom": -0.03,
"potnom1": -0.03,
"potnom2": -0.03,
"potnom3": -0.03,
"potnom4": -0.03,
"potnom5": -0.03,
"potnom6": -0.03,
"potnom7": -0.03,
"dir": 1,
"tmphs": 28.12,
"tmpm": 28.9,
"uaux": 16.43,
"pwmio": 0,
"canio": 0,
"din_cruise": 0,
"din_start": 0,
"din_brake": 0,
"din_mprot": 1,
"din_forward": 1,
"din_reverse": 0,
"din_emcystop": 1,
"din_ocur": 1,
"din_desat": 1,
"din_bms": 0,
"cpuload": 24.87
}

[fransoa]

The same with brake down:
{
"boost": 1850,
"fweak": 258,
"fconst": 450,
"udcnom": 350,
"fslipmin": 1.31,
"fslipmax": 3.03,
"fslipconstmax": 9,
"polepairs": 2,
"respolepairs": 1,
"encmode": 1,
"fmax": 500,
"numimp": 36,
"dirchrpm": 300,
"dirmode": 1,
"snsm": 12,
"pwmfrq": 1,
"pwmpol": 0,
"deadtime": 63,
"ocurlim": -5000,
"il1gain": -1,
"il2gain": -1,
"udcgain": 7.5,
"udcofs": 0,
"udclim": 450,
"snshs": 0,
"bmslimhigh": 100,
"bmslimlow": -20,
"udcmin": 300,
"udcmax": 400,
"idcmax": 5000,
"idcmin": -5000,
"tmphsmax": 85,
"tmpmmax": 300,
"throtmax": 100,
"throtmin": -50,
"iacmax": 5000,
"ifltrise": 10,
"ifltfall": 3,
"chargemode": 0,
"chargecur": 0,
"chargekp": 80,
"chargeki": 10,
"chargeflt": 8,
"chargemax": 90,
"potmin": 50,
"potmax": 4095,
"pot2min": 4095,
"pot2max": 4095,
"potmode": 0,
"throtramp": 5,
"throtramprpm": 20000,
"ampmin": 0.34,
"slipstart": 50,
"brknompedal": -40,
"regenramp": 5,
"brknom": 30,
"brkmax": -40,
"brkcruise": -30,
"brkrampstr": 20,
"brkhistr": 1000,
"brkhistp": 1000,
"brkout": -50,
"idlespeed": 150,
"idlethrotlim": 50,
"idlemode": 1,
"speedkp": 0.37,
"speedflt": 7,
"cruisemode": 1,
"udcsw": 0,
"udcswbuck": 0,
"tripmode": 0,
"pwmfunc": 0,
"pwmgain": 100,
"pwmofs": 0,
"canspeed": 0,
"canperiod": 0,
"fslipspnt": -1.31,
"ampnom": 0.03,
"version": 4,
"hwver": 3,
"opmode": 1,
"lasterr": 0,
"status": 0,
"udc": 385.18,
"idc": 0,
"il1": -4,
"il2": 4,
"ilmax": 4.5,
"uac": 0,
"il1rms": 5.03,
"il2rms": 4.46,
"boostcalc": 1691.4,
"fweakcalc": 282.18,
"fstat": 54.18,
"speed": 1665,
"cruisespeed": -1,
"turns": 2545,
"amp": 2,
"angle": 149.87,
"pot": 19,
"pot2": 21,
"potnom": -0.03,
"potnom1": -0.03,
"potnom2": -0.03,
"potnom3": -0.03,
"potnom4": -0.03,
"potnom5": -0.03,
"potnom6": -0.03,
"potnom7": -0.03,
"dir": 1,
"tmphs": 28.75,
"tmpm": 30.46,
"uaux": 16.43,
"pwmio": 0,
"canio": 0,
"din_cruise": 0,
"din_start": 0,
"din_brake": 1,
"din_mprot": 1,
"din_forward": 1,
"din_reverse": 0,
"din_emcystop": 1,
"din_ocur": 1,
"din_desat": 1,
"din_bms": 0,
"cpuload": 24.87
}

[johu]

Thanks. Very strange, will check.

[Isaac96]

Try idlespeed = -100

[fransoa]

With idlespeed=-100
{
"boost": 1850,
"fweak": 258,
"fconst": 450,
"udcnom": 350,
"fslipmin": 1.28,
"fslipmax": 3,
"fslipconstmax": 9,
"polepairs": 2,
"respolepairs": 1,
"encmode": 1,
"fmax": 500,
"numimp": 36,
"dirchrpm": 300,
"dirmode": 1,
"snsm": 12,
"pwmfrq": 1,
"pwmpol": 0,
"deadtime": 63,
"ocurlim": -2500,
"il1gain": -1,
"il2gain": -1,
"udcgain": 7.5,
"udcofs": 0,
"udclim": 450,
"snshs": 0,
"bmslimhigh": 100,
"bmslimlow": -20,
"udcmin": 300,
"udcmax": 400,
"idcmax": 5000,
"idcmin": -5000,
"tmphsmax": 85,
"tmpmmax": 300,
"throtmax": 100,
"throtmin": -100,
"iacmax": 5000,
"ifltrise": 10,
"ifltfall": 3,
"chargemode": 0,
"chargecur": 0,
"chargekp": 80,
"chargeki": 10,
"chargeflt": 8,
"chargemax": 90,
"potmin": 100,
"potmax": 4095,
"pot2min": 4095,
"pot2max": 4095,
"potmode": 0,
"throtramp": 5,
"throtramprpm": 20000,
"ampmin": 0.31,
"slipstart": 50,
"brknompedal": -40,
"regenramp": 5,
"brknom": 30,
"brkmax": -40,
"brkcruise": -30,
"brkrampstr": 20,
"brkhistr": 1000,
"brkhistp": 1000,
"brkout": -50,
"idlespeed": -100,
"idlethrotlim": 50,
"idlemode": 3,
"speedkp": 0.34,
"speedflt": 7,
"cruisemode": 1,
"udcsw": 0,
"udcswbuck": 0,
"tripmode": 0,
"pwmfunc": 0,
"pwmgain": 100,
"pwmofs": 0,
"canspeed": 0,
"canperiod": 0,
"fslipspnt": -1.28,
"ampnom": 0.03,
"version": 4,
"hwver": 3,
"opmode": 1,
"lasterr": 0,
"status": 0,
"udc": 385.06,
"idc": 0,
"il1": -1,
"il2": 3,
"ilmax": 2.75,
"uac": 0,
"il1rms": 4.59,
"il2rms": 8.56,
"boostcalc": 1691.4,
"fweakcalc": 282.18,
"fstat": 65.34,
"speed": 2040,
"cruisespeed": -1,
"turns": 762,
"amp": 3,
"angle": 158.31,
"pot": 19,
"pot2": 21,
"potnom": -0.03,
"potnom1": -0.03,
"potnom2": -0.03,
"potnom3": -0.03,
"potnom4": -0.03,
"potnom5": -0.03,
"potnom6": -0.03,
"potnom7": -0.03,
"dir": 1,
"tmphs": 27.18,
"tmpm": 29.53,
"uaux": 16.43,
"pwmio": 0,
"canio": 0,
"din_cruise": 0,
"din_start": 0,
"din_brake": 0,
"din_mprot": 1,
"din_forward": 1,
"din_reverse": 0,
"din_emcystop": 1,
"din_ocur": 1,
"din_desat": 1,
"din_bms": 0,
"cpuload": 24.87
}

[johu]

Can you set potmin to 0?

What the above test resulted in is that the UserThrottleCommand is already 0. The the 0 isn't caused by derating or idle speed.

[fransoa]

potmin 100 -> 0 : exacly the same problem. potnom1..7 = 0.00

[johu]

Think I found it now. Can you set pot2min=1 and pot2max=10

[fransoa]

Thank you very much. The test is conclusive. The regen works with these parameters. idlespeed management works. It's an all-terrain vehicle and the idlespeed, brkmax and brknompedal settings are managed by the driver and transmitted by CAN bus.

If anyone has an idea also for my OVERCURRENT error problem when I put the START to ON. (see below in this topic)
Today I replace the electronic card without understanding what's going on.

[johu]

Great Will be fixed in the next release.
Try lowering idlethrotlim or alternatively slowly ramping idlespeed