evc_motorcycle
1 mW
- Joined
- Mar 15, 2021
- Messages
- 15
Hello everyone, thank you so much for the suggestions and feedback! Sorry about the few day break- this week has been kind of crazy with midterms and other assignments. Updates since the last post are as follows:
- I reflashed the gen4 with new firmware SN0058.28 (turns out the one it was running when we got it was not for PMAC)
- a new DCF file has been loaded and configured with the data for our setup on the new firmware (battery voltage, contactor, I/O, etc.)
Unfortunately I have not been able to try out the new suggestions for getting the encoder to line up because I now have a precharge fault on the controller that I cannot get rid of. I'm running a nominal 51.1V pack with the cutoffs set at the appropriate values for Lithium cells. The parameters are the same as they were in my previous DCF but the capacitors are only charging up to about 45V max which isn't the 85% needed for the contactor to close. Does anyone have any insight on to what could be causing this issue? I feel that I can't continue with motor testing until I get this bug figured out :/
The positive battery terminal is connected to pin 1 on the gen4 through a keyswitch and a fuse (unchanged since the beginning) and the battery is charged to ~56V so there should be no issues there. I have gone through the entire "tree" section in DVT and changed every value relating to voltages and cutoffs I could find as well.
- I reflashed the gen4 with new firmware SN0058.28 (turns out the one it was running when we got it was not for PMAC)
- a new DCF file has been loaded and configured with the data for our setup on the new firmware (battery voltage, contactor, I/O, etc.)
Unfortunately I have not been able to try out the new suggestions for getting the encoder to line up because I now have a precharge fault on the controller that I cannot get rid of. I'm running a nominal 51.1V pack with the cutoffs set at the appropriate values for Lithium cells. The parameters are the same as they were in my previous DCF but the capacitors are only charging up to about 45V max which isn't the 85% needed for the contactor to close. Does anyone have any insight on to what could be causing this issue? I feel that I can't continue with motor testing until I get this bug figured out :/
The positive battery terminal is connected to pin 1 on the gen4 through a keyswitch and a fuse (unchanged since the beginning) and the battery is charged to ~56V so there should be no issues there. I have gone through the entire "tree" section in DVT and changed every value relating to voltages and cutoffs I could find as well.