Search found 1801 matches
- Sat Jul 22, 2023 8:47 am
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
I would suggest that as an absolute minimum: All safety critical parameters are excluded from being can mappable. New fixed messages (possibly with just the id being configurable) are added for each safety critical parameter that needs to be transferred, each using the approaches detailed in uhi's p...
- Thu Jul 20, 2023 9:03 pm
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
For the safety relevant CAN messages, there are better methods in the field than just timeouts. They cover also situations where the sender is just repeating the same message again and again, and also cases when an other sender is sending garbage on a wrong ID which matches the critical ID. The con...
- Thu Jul 20, 2023 8:30 pm
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
If you need a hand let me know, even if it's help getting the bench setup working.
- Thu Jul 20, 2023 7:56 pm
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
Right, I've taken a few deep breaths and calmed down a little. That's not how CAN should be done, every critical message must have a dedicated timeout, throttle and brake in particular.
If you need any help putting a fix together let me know, don't want to tread on toes but this needs sorting!
If you need any help putting a fix together let me know, don't want to tread on toes but this needs sorting!
- Thu Jul 20, 2023 7:49 pm
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
Not ideal! FFS that needs sorting! How long has this behaviour been known about!
- Thu Jul 20, 2023 7:29 pm
- Forum: Inverters / Motor Controllers
- Topic: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
- Replies: 114
- Views: 26625
Re: My Car tried to Kill me today (1973 Beetle +SDU Conversion), Potential Cruise Control Bug ?
Did I read that right, is there currently no throttle specific timeout, will any received CAN message keep it live?
Edit - just checked the code and you're right! I'm lost for words!
Edit - just checked the code and you're right! I'm lost for words!
- Thu Jul 20, 2023 10:13 am
- Forum: Nissan
- Topic: Leaf Gen2 DC Voltage Sense
- Replies: 4
- Views: 3531
Re: Leaf Gen2 DC Voltage Sense
Is the UDC measurement only used for those limits or is it used for more direct motor control stuff? If it is used for motor control stuff then it would make sense to me to have it as accurate as possible across the full range. Or maybe it doesn't matter much? One of the reasons I did this was to g...
- Thu Jul 20, 2023 9:57 am
- Forum: Projects
- Topic: [WIP] L322 RR Vogue - The beached whale
- Replies: 133
- Views: 258176
Re: L322 RR Vogue - The beached whale
Looking good, really like the attention to detail going into this build
How did you get on with the bms, were you able to repair that pcb trace?
How did you get on with the bms, were you able to repair that pcb trace?
- Thu Jul 20, 2023 9:55 am
- Forum: Mitsubishi
- Topic: kitcar conversion
- Replies: 2
- Views: 3743
Re: kitcar conversion
One thing to bear in mind is that the PHEV motor has a fixed ratio gearbox and so its top speed may be a bit limited. Not a problem if it's for road use but if you plan to use it on track at all it may be an issue?
- Thu Jul 20, 2023 9:52 am
- Forum: Classifieds
- Topic: Various Batteries (Tesla, BMW), and other parts
- Replies: 28
- Views: 9270
Re: Various parts, Batteries, chargers, inverters
Sorry I’ve been away, here’s a photo, part number G9200-47140 - comes with the wiring harness plug too Thanks for the picture, afraid I'm going to leave it though. The one I've already got is a G9200-47230 (slightly later model with different pcbs inside) and I'm really looking for another the same.
- Tue Jul 18, 2023 7:39 am
- Forum: Inverters / Motor Controllers
- Topic: Measuring IPM Motor Parameters from Plots
- Replies: 37
- Views: 13711
Re: Measuring IPM Motor Parameters from Plots
Looks good, that's a pretty high value for flux linkage which explains why the motor doesn't like to spin too fast. It should make good torque but it's going to need a lot of field weakening current! Not 100% sure about the spikes but think it's due to the flux moving up the B/H curve, not quite sat...
- Mon Jul 17, 2023 9:55 am
- Forum: Vehicle Control (VCU)
- Topic: Trouble contributing to Stm32-vcu
- Replies: 11
- Views: 5812
Re: Trouble contributing to Stm32-vcu
Agree with ArdianB, I've been doing this kind of stuff for years and still found the OI stuff a fairly steep learning curve. When using stlink you can either use a .hex or the .bin file. If you use the .bin you have to manually specify the load address, otherwise it could be programmed into the wron...
- Sun Jul 16, 2023 8:39 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
Ignore me re the pwm values, forgot that they are not available as params. Haven't added logging to manual mode yet (seemed to be asking for trouble adding the extra complexity at the same time), probably ought to though! Do you have a working logging setup now? A problem with the offset calibration...
- Sun Jul 16, 2023 8:14 pm
- Forum: Tesla
- Topic: Persistent OVERCURRENT error after installing SDU V8 board w/new sensors
- Replies: 22
- Views: 2436
Re: Persistent OVERCURRENT error after installing SDU V8 board w/new sensors
Oops, sorry, the ones I described in that post are the overall default parameters in the OI code but not the specific parameter defaults for the SDUnubster wrote: ↑Sun Jul 16, 2023 7:53 pm I see. I must have misunderstood the reply in my other post. I will give these a shot. Thank you!!
- Sun Jul 16, 2023 7:53 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
One final thought for today. There is one difference between the normal run mode code and mine, because mine is running in manual mode the ADC offset routine may not have run so I run it at the start of the first test. This shouldn't make any difference but if it isn't working right it could cause t...
- Sun Jul 16, 2023 7:37 pm
- Forum: Projects
- Topic: [WIP] L322 RR Vogue - The beached whale
- Replies: 133
- Views: 258176
Re: L322 RR Vogue - The beached whale
Having seen your fabrication and CAD skills I shouldn't be surprised Looks like a superb bit of kit!
Thanks for the offer of the DXFs, may take you up on it in the future but going to have a look for something pre-assembled first.
Thanks for the offer of the DXFs, may take you up on it in the future but going to have a look for something pre-assembled first.
- Sun Jul 16, 2023 7:17 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
I clipped the ground to the phases and poke the probe to the negative :D Makes sense :) There is definitely something not right there. On the bidir plot you posted the motor is just oscillating between around -10 and +50degrees rather than doing a full rotation and in the video it's so uneven in pl...
- Sun Jul 16, 2023 6:39 pm
- Forum: Projects
- Topic: [WIP] L322 RR Vogue - The beached whale
- Replies: 133
- Views: 258176
Re: L322 RR Vogue - The beached whale
Looking good
If you don't mind me asking - where did you get your welding table, was it in kit form or pre-assembled and would you recommend the supplier?
If you don't mind me asking - where did you get your welding table, was it in kit form or pre-assembled and would you recommend the supplier?
- Sun Jul 16, 2023 6:37 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
Can't fault those waveforms (why are they negative though if measured relative to HV gnd?), all the IGBT's appear to be working fine. I'm out of ideas again. Can't quite tell in the video, was the spin with the sin software much smoother? They should be virtually equivalent, both should apply the sa...
- Sun Jul 16, 2023 5:58 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
Something just doesn't look right there, it's never going to be perfectly smooth but it should be a lot better than that (it appears to be going in the wrong direction sometimes!). It's almost like it's missing a phase (or half a phase maybe, just 1 IGBT)? Is it worth checking the winding resistance...
- Sun Jul 16, 2023 5:09 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
It still doesn't seem to be following the field correctly :( What does it do on a forward spin now? (until that spins reliably there's not much point in trying to find syncofs) Have you checked the phase resistances, is it possible that there is a problem with the motor? Edit - not sure why the aver...
- Sun Jul 16, 2023 4:25 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
Been thinking about how to setup the controller gains when first setting up a new motor and have come up with this: StartingGains.png The idea is that you use the inductance value that the phase check test gives and the voltage you are running at to look up the values to use for kp and ki. For examp...
- Sun Jul 16, 2023 9:01 am
- Forum: Projects
- Topic: [DRIVING] Project RX8 , Prius gen2, Lexus transaxle to rwd
- Replies: 298
- Views: 46778
Re: Project RX8 , Prius gen2, Lexus transaxle to rwd
Either way still an impressive achievement
How's it running with the extra volts?
How's it running with the extra volts?
- Sun Jul 16, 2023 8:58 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor - Auto-setup
- Replies: 163
- Views: 17600
Re: IPM Motor - Auto-setup
Good point!
Didn't check but it should have pulled the new one across.
Edit - just checked and latest files are on there.
- Sun Jul 16, 2023 8:56 am
- Forum: Projects
- Topic: [DRIVING] Project RX8 , Prius gen2, Lexus transaxle to rwd
- Replies: 298
- Views: 46778
Re: Project RX8 , Prius gen2, Lexus transaxle to rwd
Great result
How on earth did you manage it, the rx8 engine isn't that heavy to start with and you now have two motors and a fair number of cells in there now?
How on earth did you manage it, the rx8 engine isn't that heavy to start with and you now have two motors and a fair number of cells in there now?