Boost converters are free with the Toyota inverters, they are worthwhile exploring to see what they can do for us.
Soon I will start submitting LT Spice simulations here, all comments will be welcome as usual.
Kind regards,
Johnspark
Search found 264 matches
- Tue Apr 18, 2023 5:48 am
- Forum: Inverters / Motor Controllers
- Topic: Boost converter simulation
- Replies: 1
- Views: 477
- Tue Apr 18, 2023 5:45 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
Thank you for your thoughts Pete9008. Sorry about your health issues.
Sounds very interesting about not needing the boost converter. Reduces the complexity quite a bit.
Sounds very interesting about not needing the boost converter. Reduces the complexity quite a bit.
- Mon Apr 17, 2023 12:42 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
I would like to start a boost converter simulation topic under Software, but cannot find a 'New topic' button, would someone please start one for me,
Kind regards,
Johnspark
Kind regards,
Johnspark
- Sun Apr 16, 2023 11:01 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
So what I am doing, is using Prius Gen 2 MG1 and MG2 with 5 speed manual gear box, with up to 350 V battery, and AVV50R inverter. So need to use the boost converter. My car is an E39. Yes I know, far too heavy etc. Its about history. When I started it was about looking for a 13 inch DC motor, or $30...
- Sat Apr 08, 2023 8:28 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
This model now has adjustable mark/space ratio via the adjustable battery. Very happy with this model, it can be adjusted, and gives realistic values :). For this example, I have 3 different mark space ratios for initial conditions, to reduce the large inrush current (slows down speed of getting HV)...
- Sat Apr 08, 2023 7:00 am
- Forum: Classifieds
- Topic: zeva BMS
- Replies: 6
- Views: 804
Re: zeva BMS
Ah Mike, well that's better. Which modules can you get?
- Sat Apr 08, 2023 12:03 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
I can also adjust mark space ratio by adjusting +/-DC offset of sinewave generator. So model becoming more realistic and simpler.
- Sat Apr 08, 2023 12:02 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
i took your advise Pete and got rid of the D flip flop. But found I could replace it and the buffer with a schmitt buffer. Now I am getting sensible results. For a 250V battery and approx 500V output, current from battery is approx double that going to load resistor. Also that saw tooth waveform sup...
- Thu Apr 06, 2023 10:51 am
- Forum: Toyota/Lexus
- Topic: Denso ES27C AC Compressor control (Toyota/Lexus)
- Replies: 49
- Views: 12243
Re: Denso ES27C AC Compressor control (Toyota/Lexus)
I still have my Hybrid Camry AVV50 of which I can test the Denso compressor. I have uploaded signals before, but I could redo assuming my compressor uses Lin bus too perhaps?
- Thu Apr 06, 2023 9:42 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
Today I was able to measure the inductance of a MG1 generator from a Prius V2. Please note, I did not turn the shaft for these measurements. Here are the values, These measurements are across 1 phase and the other two phases placed in parallel. M1 = 2.2mH M2 = 1.2mH M3 = 2.2mH. Using your formulas P...
- Thu Apr 06, 2023 9:36 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
Will try these things Pete9008 .
- Tue Mar 28, 2023 8:09 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
I have made an LTspice XVII model, and have put one graph on the forum: image.png Operation is more complicated than I thought it would be. I have included the file as well below. So far my model only has equal mark / space ratio, but battery voltage and parameter values can be changed. If anybody w...
- Tue Mar 28, 2023 7:58 am
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
Thank you Pete9008, perhaps we can think of the boost inductor system as a transformer in the AC world so power in is power out, but we can double output voltage at expense of output current being only 1/2 the input current.
- Sun Mar 26, 2023 11:43 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
Thank you Romale, I will think about this a bit more...
- Sun Mar 26, 2023 9:46 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
I think there is value in boost converters for high L motors. To me it seems the higher the battery/boost voltage the more efficiently the motor can run (apart from extra losses in the boost system). Limits of boost system are: current boost inductor and IGBTs can handle, and I think power capabilit...
- Sun Mar 26, 2023 9:41 pm
- Forum: Inverters / Motor Controllers
- Topic: IPM Motor Simulation and FOC Software
- Replies: 986
- Views: 114051
Re: IPM Motor Simulation and FOC Software
This leakage inductance would be a fairly small number for high inductance motors, but may be a lot more important for low L motors I presume?
- Sat Mar 25, 2023 3:14 am
- Forum: Projects
- Topic: [DRIVING] Audi A2 /w Prius Gen2 Transaxle & Inverter [FINISHED]
- Replies: 345
- Views: 63273
- Fri Mar 24, 2023 9:57 am
- Forum: Projects
- Topic: [DRIVING] Audi A2 /w Prius Gen2 Transaxle & Inverter [FINISHED]
- Replies: 345
- Views: 63273
Re: Audi A2 /w Prius Gen2 Transaxle & Inverter [FINISHED]
Hi Johu,
is there somewhere that you have tabled your optimum MG2 parameter values?
Kind regards,
Johnspark
is there somewhere that you have tabled your optimum MG2 parameter values?
Kind regards,
Johnspark
- Wed Mar 22, 2023 3:30 am
- Forum: Inverters / Motor Controllers
- Topic: Measuring IPM Motor Parameters from Plots
- Replies: 37
- Views: 13090
Re: Measuring IPM Motor Parameters from Plots
EMC with very sharp voltage source waveforms.
For Toyota motors, each individual phase wire is shielded, so no voltage EMC from the 3 phase supply wires.
As far as current EMC, if the motor has high L, current EMC will be low...
For Toyota motors, each individual phase wire is shielded, so no voltage EMC from the 3 phase supply wires.
As far as current EMC, if the motor has high L, current EMC will be low...
- Wed Mar 22, 2023 3:28 am
- Forum: Inverters / Motor Controllers
- Topic: Measuring IPM Motor Parameters from Plots
- Replies: 37
- Views: 13090
Re: Measuring IPM Motor Parameters from Plots
I agree with aiming for 80% with only 20% effort :). Well here is some info on harmonics to help understand this stuff a bit better. image.png So there are no rotation forces on the motor either positive or negative, but we do get the center of the 3 windings wanting to do something, so if the neutr...
- Tue Mar 21, 2023 8:37 am
- Forum: Inverters / Motor Controllers
- Topic: Measuring IPM Motor Parameters from Plots
- Replies: 37
- Views: 13090
Re: Measuring IPM Motor Parameters from Plots
Probably everyone thinks the lambda discussions are finished, but I am a bit slow. [While everyone is having main course for dinner/tea, I am still eating ice cream desert from lunchtime]. :lol: So I got this page out of the Evaluation of 2004 Toyota Prius Hybrid Electric Drive System Oakridge pdf. ...
- Tue Mar 21, 2023 6:59 am
- Forum: Toyota/Lexus
- Topic: Knocking noise in camry hybrid transaxle
- Replies: 4
- Views: 863
Re: Knocking noise in camry hybrid transaxle
Ah that is very pleasing to read Dxtawise ![Smile :)](./images/smilies/icon_e_smile.png)
![Smile :)](./images/smilies/icon_e_smile.png)
- Fri Mar 17, 2023 9:23 am
- Forum: Classifieds
- Topic: zeva BMS
- Replies: 6
- Views: 804
Re: zeva BMS
OK Ieman2112, I am interested, how much to also get to Adelaide South Australia?
Kind regards,
Johnspark.
Kind regards,
Johnspark.
- Fri Mar 17, 2023 9:18 am
- Forum: Toyota/Lexus
- Topic: Characterisation of Prius Gen3 Inverter Over Current and Over Temperature Trips
- Replies: 14
- Views: 1368
Re: What's the best way to handle desat on Toyota inverters with OpenInverter logic board?
Ages ago Pete9008, I downloaded a pdf of an IC, and had another one printed off of an IGBT which I have turned into 2 jpg pages (sorry missing pg 48). Here it is for you. It uses the ESGAK. AK terminals are for a diode on the substrate isolated from any other connections, used for measuring substrat...
- Thu Mar 16, 2023 3:01 am
- Forum: Toyota/Lexus
- Topic: Characterisation of Prius Gen3 Inverter Over Current and Over Temperature Trips
- Replies: 14
- Views: 1368