Thanks for your input Noah.
Now i have another question, from the HPEV's PID that Orion BMS can broadcast, pictured below, all of them are clear for me, except for the HPEV Frequency PID.
Which frequency is this ?
new PID 2.JPG
Last edited by podolefsky; 05 February 2017 at 0831.
but isn't the rpm of the rotor more or less synchronised with the frequency of the stator ?
Originally Posted by podolefsky
Induction motor motors are asynchronous so the stator field speed will be faster than the rotor. Field speed is 120*frequency / # of poles.
Originally Posted by Hugues
Last edited by podolefsky; 05 February 2017 at 1208.
Update on this project,
I'm having troubles to establish connection using this CAN repeater:
- I power the unit with a 11 volts separate battery
- I connect the CAN high and low of my Curtis controller
- at this moment the 2 TD and RD red led switch on
- i can read around 0.7 volt between CAN high and low on each side of the repeater
- but when i connect the CAN high and low of my Orion BMS, the 2 led switch off and i can read 0 volt on the CAN output.
Any idea what could go wrong ? I have tried to invert the CAN ports, no difference.
Is it absolutely necessary to connect the GND pin of the CAN ports on my controller side ? I'm not that sure where to take the ground on the controller side.
I have sent an e-mail to the supplier, let's see....
You don't need to connect the ground on the controller side. It's just the shield so having it on one side is sufficient.
Make sure the BMS and controller are using the same baud rate (kbps). In the controller programming CAN baud rate, 0=125kbps, 1=256, 2=500
no progress here, i attach a schematic of my circuit, maybe someone could spot something i'm doing wrong.
Here's a link to the support ticket i opened with the supplier,
they asked e a couple of questions but it seems they do not know what is the problem
basically i can connect any 2 of these 3 connections: BMS CAN Port, Controller CAN Port, 12 Volt, then CAN voltage stays good, but as soon as i connect the third one, the CAN voltage drops to zero.
Reading a DC voltage won't tell you much since it's an oscillating signal.
2 things to check:
-are you sure the CAN bus is working on the BMS end? Test with something else, not going through the CANOP to check.
-are you sure you aren't getting communication? Reading 0V on your meter doesn't mean there isn't traffic on the bus.
1- yes it's working. I'm using the CAN2 bus from BMS, this is the one i use for my charger, i tested with my charger and it works. Today I also inserted the CANOP repeater on the CAN2 line between BMS and charger, and the charger is working normally. So the CANOP is working. I noticed the 2 LED also go off, actually they are not completely off, when you look at them straight, they blink but brightness is very low.
Originally Posted by podolefsky
2- I configured Torque to add the Motor temperature PID (and some others) from Curtis but th evalue i get is zero, also for other PID's. The Orion BMS has a screen, below pic, where we should see the HPEV's value, but it says not available.
Below i attach: CAN Bus values seen by BMS, the screen in BMS where i should see the HPEV's values, the CAN bus settings on BMS, and the CAN bus settings in Curtis controller
BMS CAN Bus values.JPGBMS HPEV CAN values.JPGBMS CAN Bus settings.JPGCurtis CAN parameters.JPG
I also add the screens from Torque showing my settings for the Motor Temp PID and it's values when i click Test.
Last edited by Hugues; 18 February 2017 at 0459.
Is BMS turned on in the controller programming?