Search found 127 matches

by Aragorn
Thu Nov 23, 2023 2:59 pm
Forum: Projects
Topic: [WIP] Daihatsu Hijet, Prius Gen2, Prius Gen3 transaxle
Replies: 8
Views: 5435

Re: [WIP] Daihatsu Hijet, Prius Gen2, Prius Gen3 transaxle

yeah you dont want to lock one diff output, you'll likely destroy the sun gears. Weld the diff centre instead. You may also find the gearing somewhat unsatisfactory as the output of the transaxle is already reduced, intended to run directly to the wheels and instead you'll reduce it again thru your ...
by Aragorn
Wed Nov 22, 2023 3:25 pm
Forum: Battery Managment (BMS)
Topic: Replacing the VW BMU aka implementing high level BMS functions
Replies: 19
Views: 9353

Re: Replacing the VW BMU aka implementing high level BMS functions

Yeah that is in "drive" mode, not sure if it would then apply different limits when charging vs regen. I've seen one log taken during a rapid charge (from someone elses car) where it was showing 80A on a warm battery, with the charger churning along at 37kw, but that felt like it was showi...
by Aragorn
Wed Nov 22, 2023 12:13 pm
Forum: Battery Managment (BMS)
Topic: Replacing the VW BMU aka implementing high level BMS functions
Replies: 19
Views: 9353

Re: Replacing the VW BMU aka implementing high level BMS functions

I'll try to remember to pull some data points from CarScanner for you. This is an older screenshot in my phone:
image.png
Hopefully you can cross reference these with your model and see that it lines up somewhat sensibly.
by Aragorn
Wed Nov 22, 2023 11:44 am
Forum: Projects
Topic: [Driving] MG F - Outlander Rear motor and inverter.
Replies: 169
Views: 58952

Re: [Driving] MG F - Outlander Rear motor and inverter.

Good to know, most cellphone GPS units are only 1hz polling so not the best for that sort of stuff.

I have a SkyRC GSM020 which has a high refresh rate GPS chip and uses GNSS for additional accuracy. Quite a nice little unit for £45ish.

I guess you could also try logging on the Zombieverter?
by Aragorn
Tue Nov 21, 2023 9:56 am
Forum: Projects
Topic: [Driving] MG F - Outlander Rear motor and inverter.
Replies: 169
Views: 58952

Re: [Driving] MG F - Outlander Rear motor and inverter.

Useful data, thanks. Comes a little way short of what i was hoping for given the "paper" specs. The factory figures for a 1.6 MGF are ~9 seconds to 60. The outlander motor on paper at least has more torque at 195nm vs 145nm for the 1.6L engine. Peak current of 225A at say 350v suggests a p...
by Aragorn
Mon Nov 20, 2023 2:14 pm
Forum: Projects
Topic: [DRIVING] 1940 Chevrolet with Tesla Motor
Replies: 133
Views: 44003

Re: [DRIVING] 1940 Chevrolet with Tesla Motor

Ah thats a bit annoying. I have heard though that you can just "turn up" and you'll usually get in (certainly to dragweek). I think that while they're full, they inevitably get no-shows from folks who have paid but for whatever reason arent ready in time. So there are usually spots availab...
by Aragorn
Mon Nov 20, 2023 11:21 am
Forum: Projects
Topic: [DRIVING] 1940 Chevrolet with Tesla Motor
Replies: 133
Views: 44003

Re: [DRIVING] 1940 Chevrolet with Tesla Motor

Sick Week 2024 next? :D
by Aragorn
Mon Nov 20, 2023 11:14 am
Forum: Projects
Topic: [Driving] MG F - Outlander Rear motor and inverter.
Replies: 169
Views: 58952

Re: [Driving] MG F - Outlander Rear motor and inverter.

I'm intrigued with the performance that this motor can provide, do you have any performance data? 0-60 time?

What sort of battery power does it pull when at full send?
by Aragorn
Thu Nov 16, 2023 9:11 am
Forum: Projects
Topic: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]
Replies: 742
Views: 613465

Re: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]

Two voltages stick out a bit. Highest is 3862 mV and lowest 3848 mV . so 14 mV Delta. will take a few more samples and watch these two carefully Given you have a 9th/spare module, might be prudent to swap the entire module containing the lowest cell at this stage? Then theres only one to keep an ey...
by Aragorn
Tue Nov 14, 2023 12:41 pm
Forum: Projects
Topic: [WIP] Mercedes 310E (310D campervan) - GS450H/GS300H
Replies: 162
Views: 139787

Re: Mercedes 310E (310D campervan) - GS450H/GS300H

Not sure what exactly your trying to achieve with the third motor... On both transmissions, MG2 is connected directly to the output shaft, and doesnt touch the PSD. MG2 to Output ratio is 1.9 for 450h and 3.3 for 300h The GS450h with locked engine shaft runs MG1 faster than MG2 (about 1.2x), thus MG...
by Aragorn
Thu Nov 09, 2023 3:01 pm
Forum: Projects
Topic: [DRIVING] BMW Z3
Replies: 364
Views: 280519

Re: [WIP] BMW Z3

andybpowell wrote: Thu Nov 09, 2023 2:12 pm same size as the 16s phev modules the bms slaves are very slightly smaller
:)
I guess its the same cells just reconfigured as 8s2p?
by Aragorn
Wed Nov 08, 2023 4:04 pm
Forum: Projects
Topic: Mercedes T1 conversion [WIP]
Replies: 31
Views: 18668

Re: Mercedes T1 conversion [WIP]

Hard to be exact on range as it will vary wildly with driving conditions. I typically manage 3mi/kwh in my production EV, many other owners of the same car claim 3.5-4 or higher. Reports from the production Ford Transit EV suggest circa 2.5mi/kwh is possible. F150 Lightning reviews suggest around 2....
by Aragorn
Wed Nov 08, 2023 1:46 pm
Forum: Projects
Topic: Mercedes T1 conversion [WIP]
Replies: 31
Views: 18668

Re: Mercedes TN/1 conversion

Thanks, That's good news. I'm not a million miles away on the rpm then. Any thoughts on the 4x4 setup with the gs450h. gs450h to G wagen transfer box to front and rear G wagen axles. I want to keep it basic. I guess the gs450h has more torque than the gs300h but has the external oil pump. I suppose...
by Aragorn
Wed Nov 08, 2023 10:44 am
Forum: Projects
Topic: Mercedes T1 conversion [WIP]
Replies: 31
Views: 18668

Re: Mercedes TN/1 conversion

Thereabouts yea.

A 30" tyre is doing about 900rpm at 80mph. 4.3 diff gear means the prop is doing ~3850rpm and thus the motor is doing ~7300rpm after the 1.9:1 reduction.

Seems to fit fairly well on the motors curve, a factory GS450h would be doing around 6500rpm at 80 for instance.
by Aragorn
Thu Nov 02, 2023 2:39 pm
Forum: Toyota/Lexus
Topic: 2021 Lexus ES 300H Amperage Limit/Information Request
Replies: 1
Views: 4590

Re: 2021 Lexus ES 300H Amperage Limit/Information Request

The Prius models will reportedly do around 100A. Camry is similar.

Google suggests the ES300h has a 120A fuse on the DC-DC converter, so in effect thats your limit.
by Aragorn
Fri Oct 27, 2023 12:38 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)
Replies: 45
Views: 38368

Re: MEB motor and inverter (ID.3, ID.4, Eniaq, etc.)

It might be possible to swap the inverter logic board from the old one? That would get you the matching EEPROM and IMMO coding that the car is expecting. I dont know if theres any sort of resolver offset or other calibration that would need redone to match the new motor though.
by Aragorn
Thu Oct 26, 2023 2:18 pm
Forum: General
Topic: Tyres for EVs?
Replies: 9
Views: 6317

Re: Tyres for EVs?

Many EV tyres get the lower rolling resistance by having less tread. A bit of a scam if you ask me, as the rolling resistance of a normal tyre tends to improve as the tread wears down. And ofcourse they're not charging you less money for it. Personally i pay no heed to "EV" marketing, and ...
by Aragorn
Tue Oct 24, 2023 3:05 pm
Forum: Inverters / Motor Controllers
Topic: Accelerator pedal dead zone
Replies: 104
Views: 71102

Re: Accelerator pedal dead zone

It is an undefined point, it could happen at any speed/condition depending on what youve done with the throttle pedal. You could, for instance, apply 28% pedal and slowly accellerate to 30mph, and lift off the pedal and get zero regen. Then the next minute you apply 31% throttle (which will be an al...
by Aragorn
Tue Oct 24, 2023 8:11 am
Forum: Inverters / Motor Controllers
Topic: Accelerator pedal dead zone
Replies: 104
Views: 71102

Re: Accelerator pedal dead zone

You seem to be really overcomplicating this.... Catphish and toms approaches are clean and resemble what an OEM setup would do. Tracking historic throttle position and remapping the pedal on the fly seems like a recipe for issues. The pedal should not IMO randomly change its mapping at some undefine...
by Aragorn
Wed Sep 27, 2023 1:47 pm
Forum: News
Topic: Open Inverter Takes on Hot Rod Drag Week
Replies: 12
Views: 6922

Re: Open Inverter Takes on Hot Rod Drag Week

Dave and Brian seemed pretty impressed with the car from their chat :) A little technical inaccuracy ofcourse but the sentiment was overall positive i think! I'm also impressed with your daring taking a car on drag week that both didnt charge properly and didnt accellerate properly 🤣 Something else ...
by Aragorn
Tue Sep 26, 2023 4:50 pm
Forum: General
Topic: Throttle Cable Adapter Best Practices?
Replies: 14
Views: 8004

Re: Throttle Cable Adapter Best Practices?

in the early days of electronic diesel control, many cars were adapted to use e-throttle sensors from the standard cable throttle pedal, as the gasoline versions were still using cable throttle. Being that Bosch ECU's powered a lot of these cars its not surprising to find a bosch sensor to do what y...
by Aragorn
Tue Sep 26, 2023 2:58 pm
Forum: News
Topic: Open Inverter Takes on Hot Rod Drag Week
Replies: 12
Views: 6922

Re: Open Inverter Takes on Hot Rod Drag Week

day 2:




day3, i couldnt see the run but there was some chat about your car at the start:



day 4:
by Aragorn
Tue Sep 26, 2023 2:12 pm
Forum: News
Topic: Open Inverter Takes on Hot Rod Drag Week
Replies: 12
Views: 6922

Re: Open Inverter Takes on Hot Rod Drag Week

This is great!

Have you got rough timestamps for the live feed?

edit

Scanned thru day1:


by Aragorn
Wed Sep 13, 2023 10:56 am
Forum: Toyota/Lexus
Topic: Request for anyone who is currently bench testing a lexus CVT
Replies: 3
Views: 8589

Re: Request for anyone who is currently bench testing a lexus CVT

They do this to modulate the ENGINE rpm. When its being used as a standalone motor the power split isnt connected to an engine, and thus either needs to be locked up or otherwise disabled. Either by locking up the PSD input shaft, or by welding up the PSD gears. MG2 is directly connected to the rear...
by Aragorn
Wed Aug 23, 2023 9:08 am
Forum: General
Topic: selling converted car
Replies: 12
Views: 844

Re: selling converted car

I agree that it's much like selling any modified car, which just means a very small pool of potential buyers. Its also a fact of modifying cars that you almost never get back what you put into it. Both me and my brother have ended up breaking a few of our modified ICE cars over the years, because t...