Search found 179 matches

by Bryson
Thu Feb 16, 2023 3:12 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

(politely asking) Hey Bryson! I'm working on doing a GS450h conversion for a Series II XJ6L, and I was wondering how you did up the rails/mounts for the GS450h, and the battery packs. (I'll keep digging since I think I saw the post for the car on another forum.) Just trying to simplify an engineeri...
by Bryson
Tue Aug 16, 2022 8:52 pm
Forum: Tesla
Topic: Tesla Charger alternative firmware
Replies: 315
Views: 52227

Re: Tesla Charger alternative firmware

Mine regularly charges at a hair under 10kW according to my EVSE, if that helps
by Bryson
Sat Jul 23, 2022 3:23 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

Those gear ratios seem about right to me. I arrived at the torque factors by butt dyno. I’d steadily and smoothly roll on throttle for various settings and if I detected a change in acceleration when transitioning from one motor to the next, I went back and iterated until I couldn’t detect any bump ...
by Bryson
Thu Jul 07, 2022 3:27 pm
Forum: Tesla
Topic: Tesla Charger alternative firmware
Replies: 315
Views: 52227

Re: Tesla Charger alternative firmware

johu wrote: Tue Jul 05, 2022 7:56 pm You didn't think we just did CHAdeMO while I was over at Janosch?

Of course not. Also worked on the Tesla charger code until it yielded good results. As always, more testing, more better.
Curious, what did you change? Mine has been working great here at home
by Bryson
Mon Apr 25, 2022 3:23 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

You’re a prime candidate for welding the planetary carrier!
by Bryson
Mon Apr 25, 2022 2:56 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

I’ve been playing with the software in mine lately, I’ve got only MG2 active until 20% throttle (to 50% of it’s available torque), then MG1 ramps up from 20-50% throttle while keeping MG2 constant, then they both ramp up together after 50% as the original firmware had them. This keeps the car more e...
by Bryson
Mon Apr 18, 2022 1:31 am
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

Good luck! Looks like you've got a bunch of space to work with
by Bryson
Sun Apr 17, 2022 4:04 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

Anyone here ever figure out how to do a smooth 1-2 or 2-1 shift? I’ve got a clunky way of shifting but would love to implement a more useable low gear mode with an auto Up and down shift.
by Bryson
Fri Apr 08, 2022 4:50 pm
Forum: Tesla
Topic: Tesla Charger Support Thread
Replies: 785
Views: 128544

Re: Tesla Charger Support Thread

I don’t recall using 5V anywhere, just 12V from the car’s regular bus voltage
by Bryson
Tue Nov 16, 2021 4:04 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

I run one 4x8” radiator with two small fans behind it for both, looping through motor then inverter, no problems with temps at all. 1 D5 pump at medium duty, maybe 50%. I stopped monitoring after a couple weeks as it just never really got too hot.
by Bryson
Tue Nov 09, 2021 6:52 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

I owe a solid video update, but there are a few existing ones on my latent YouTube channel: https://youtube.com/user/BRV50N
by Bryson
Tue Nov 09, 2021 5:45 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

I’ve done about 3000 miles driving daily on mine, no issues at all other than a clunk developing from my rear suspension. Probably too many low gear burnouts ! Longest continuous trip so far was about 170 highway miles there and back. Another thought regarding the motors. Running one motor at medium...
by Bryson
Tue Nov 09, 2021 2:16 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

I wonder if we should change the code to only use MG2 to provide torque until ~25% load. I’ve noticed the same gear whine and lash and it bugs me too. It seems quieter at higher loads in my car which is pretty interesting.
by Bryson
Sat Oct 30, 2021 2:00 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

I only allow shifts at stop or very low torque, I wouldn’t say it’s ready for prime time. I basically just use it for doing burnouts..
by Bryson
Sat Oct 30, 2021 5:22 am
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

I used FWD in my car as well, and I use B in my firmware to shift into low gear (it doesn’t have to be momentary if your setup doesn’t have a spring return). Works great
by Bryson
Tue Oct 12, 2021 3:13 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

Mine is posted here, basic shifting at very low speed plus low to high shifting at very low torque loads. No PWM on the solenoids though. If you figure it all out I would love to incorporate it into my code.

https://github.com/Bry5on/Lexus-GS450H- ... es-testing
by Bryson
Thu Sep 30, 2021 11:04 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

Awesome! Which pin did you use for input?
by Bryson
Sun Sep 26, 2021 6:14 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 78558

Re: GS450H Discussion

The VCU knows motor speed and gear position, it doesn’t need the external speed signal to know how fast everything is turning..
by Bryson
Sat Sep 25, 2021 3:09 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

Not required in my case at least
by Bryson
Sat Sep 25, 2021 2:17 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

It doesn’t need P but it does need either a drive or reverse signal, otherwise the code won’t spin the motor
by Bryson
Fri Sep 17, 2021 2:11 pm
Forum: Toyota/Lexus
Topic: Lexus GS450H VCU Support Thread
Replies: 775
Views: 560116

Re: Lexus GS450H VCU Support Thread

No problems with USB-C on my macbook with either programming or comms. I’m using a dedicated cable and not an adapter though
by Bryson
Sun Sep 12, 2021 3:30 am
Forum: Tesla
Topic: Tesla Charger alternative firmware
Replies: 315
Views: 52227

Re: Tesla Charger alternative firmware

That’s a fantastic idea, I’d implement that as well.
by Bryson
Mon Sep 06, 2021 7:27 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 226274

Re: Simp BMS

Got it. The variable CANmilliamps was trying to pull from the rx buffer and not the can message buffer. Set CANmilliamps as below and we're good to go! ISA shunt compatibility B)

Code: Select all

CANmilliamps = ((inMsg.buf[5] << 24) | (inMsg.buf[4] << 16) | (inMsg.buf[3] << 8) | (inMsg.buf[2]));
by Bryson
Mon Sep 06, 2021 6:28 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 226274

Re: Simp BMS

Hey Tom, found the [Serial.print] line of code that was missing and got an output from the ISA shunt showing in the debug menu. Looks like I'm getting CAN but still nothing making it to the BMS itself. Maybe we're parsing the message incorrectly?: Contactors open: contactors open.png Contactors clos...
by Bryson
Sat Sep 04, 2021 11:23 pm
Forum: Battery Managment (BMS)
Topic: Simp BMS
Replies: 643
Views: 226274

Re: Simp BMS

you need to only turn on candebug and then fully exit the settings menu. It will the show the scrolling debug and between that all the canbus traffic. Sadly this isn't showing anything when ISA shunt is selected, just the regular serial interface with no additional data. Here's a shot with the CAB3...