Search found 435 matches

by xp677
Sun Mar 17, 2024 4:26 pm
Forum: Toyota/Lexus
Topic: Suitable Precharge resistor for GS450h inverter
Replies: 10
Views: 726

Re: Suitable Precharge resistor for GS450h inverter

I stuck a 40ohm unit from an Outlander PHEV on mine and monitored the current, it peaked at 17A and dropped to a few amps in just a few seconds, that seemed fine for me, so I went with that. It's essentially an RC circuit, the capacitor value in the inverter is known, and the capacity of your inline...
by xp677
Wed Nov 29, 2023 7:55 pm
Forum: Toyota/Lexus
Topic: GS450H VSS wiring polarity
Replies: 13
Views: 1534

Re: GS450H VSS wiring polarity

VR sensor, no polarity.
by xp677
Sun Nov 26, 2023 10:24 pm
Forum: Toyota/Lexus
Topic: GS450H Motor Connectors
Replies: 66
Views: 16441

Re: GS450H Motor Connectors

It's shown on the wiring diagrams from Toyota. Both sides of this solenoid are exposed in the connector. Probably to reduce interference as this is PWM controlled.
by xp677
Mon Oct 30, 2023 11:13 am
Forum: Toyota/Lexus
Topic: wiring specs
Replies: 2
Views: 3380

Re: wiring specs

Shielded twisted pair for the 4 data lines, whatever you like for the rest.
by xp677
Tue Oct 24, 2023 10:42 pm
Forum: Toyota/Lexus
Topic: 450h inverter ohms?
Replies: 3
Views: 3046

Re: 450h inverter ohms?

It's a CAN bus, there's a 120 ohm termination resistor in the inverter, and your controller will have another within it, bringing the total resistance down to 60 ohms are required by the spec.
by xp677
Tue Jul 18, 2023 7:44 am
Forum: Toyota/Lexus
Topic: Prius Gen 2 EPAS - Electric Power Assist Steering
Replies: 21
Views: 6315

Re: Prius Gen 2 EPAS - Electric Power Assist Steering

Did anyone ever figure out the CAN messages for these? I've got one as well, IIRC the current method has to just let them time out and go into a failsafe mode, which gives basic control, but you lose functions such as variable assist.
by xp677
Mon Jul 17, 2023 10:13 pm
Forum: Classifieds
Topic: WTB Lexus GS450h MG1 cable cover thingie
Replies: 5
Views: 551

Re: WTB Lexus GS450h MG1 cable cover thingie

McGeorge Logo.png Part Number Part Name Price Quantity Total 82821-30710 Cover Connector $24.04 1 $24.04 Subtotal: $24.04 Estimated Shipping via Standard Shipping: $18.14 Tax: $2.10 Total: $44.28 We had to write a 500 words essay regarding safety to justify this purchase to our accounting departmen...
by xp677
Mon Jul 17, 2023 10:09 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Transmission Inverter High Voltage Cable Repair
Replies: 12
Views: 908

Re: Lexus GS450h Transmission Inverter High Voltage Cable Repair

The outer braid is needed on any VFD-driven motor cables to reduce EMI. There should be an uninterrupted faraday cage from beginning to end, the inverter and transmission casing, along with this braid, fulfil that. See here: https://library.e.abb.com/public/a8dc0a0e66d66118c12575d6002fd22d/Technical...
by xp677
Sun Jul 16, 2023 10:31 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Inverter OEM Battery & AC Connector Delete
Replies: 15
Views: 1255

Re: Lexus GS450h Inverter OEM Battery & AC Connector Delete

Bassmobile wrote: Fri Jul 14, 2023 7:55 pm I would love to see info and photos on what you did xp677. Sounds awesome!
Sorry, I didn't take any photos.
by xp677
Sun Jul 16, 2023 10:30 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Inverter OEM Battery & AC Connector Delete
Replies: 15
Views: 1255

Re: Lexus GS450h Inverter OEM Battery & AC Connector Delete

Uppertown wrote: Mon Jul 10, 2023 9:10 am Do I need to unsolder these pins to remove the DC-dc PCB? image.png ( stolen picture is of a Camry converter but I think the 450h is similar/identical) If I do remove it are you still collecting them?
Yes desolder. Not actively seeking converter guts but will take if they're going spare!
by xp677
Sun Jul 16, 2023 10:30 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Inverter OEM Battery & AC Connector Delete
Replies: 15
Views: 1255

Re: Lexus GS450h Inverter OEM Battery & AC Connector Delete

Gregski wrote: Mon Jul 10, 2023 4:43 am thanks so in my case I am using the BMW 530e BMW hybrid pack which is 351 volts, so does that mean I can't gut mine ?
If you need to ask, then you are definitely not using the converter so you don't need it.
by xp677
Sun Jul 09, 2023 8:30 pm
Forum: Classifieds
Topic: WTB Lexus GS450h MG1 cable cover thingie
Replies: 5
Views: 551

Re: WTB Lexus GS450h MG1 cable cover thingie

Yep, only £7 new from Toyota :)
by xp677
Sun Jul 09, 2023 8:27 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Inverter OEM Battery & AC Connector Delete
Replies: 15
Views: 1255

Re: Lexus GS450h Inverter OEM Battery & AC Connector Delete

All of the stuff in the top can come out if you're not using the converter. As far as I know, nobody is using the converter. The converter would be useful for someone running a higher voltage pack, who wants to power 320-350v things like a DCDC converter, AC pump, or heater. The wiring harness throu...
by xp677
Tue Jul 04, 2023 9:22 am
Forum: Toyota/Lexus
Topic: Lexus GS450h Oil Pump Controller Stock OEM Wire Harness n stuff
Replies: 9
Views: 705

Re: Lexus GS450h Oil Pump Controller Stock OEM Wire Harness n stuff

You can always buy terminals of the correct size, push them on, then fill the space with epoxy, then add your own connectors. This isn't uncommon in motorsport, where they want to use OEM parts, but want to keep their connectors consistent, or don't have access to the OEM connectors.
by xp677
Tue Jul 04, 2023 9:15 am
Forum: Getting Started
Topic: Emergency Stop Wiring
Replies: 29
Views: 6431

Re: Emergency Stop Wiring

I just stumbled on this while searching for another topic. This falls within my field of work, so I might be able to shed some light on the matter. Emergency stop systems should be designed such that the user must not need to consider the repercussions of using the emergency stop function. That is, ...
by xp677
Sun Jul 02, 2023 6:09 pm
Forum: Toyota/Lexus
Topic: Lexus GS450h Oil Pump Controller Stock OEM Wire Harness n stuff
Replies: 9
Views: 705

Re: Lexus GS450h Oil Pump Controller Stock OEM Wire Harness n stuff

Nice writeup. The easiest option is to buy a pump controller from a breaker which includes that connector and a pigtail (not uncommon as dismantlers often just cut the cables to parts). The wires can then be extended.

50A fuse and relay, I believe.
by xp677
Sat Jun 17, 2023 8:24 pm
Forum: Toyota/Lexus
Topic: GS450h Transmission. What engine mounts.
Replies: 16
Views: 4667

Re: GS450h Transmission. What engine mounts.

There's also generic ones like this:

https://www.ebay.co.uk/itm/353534023512

Not sure if they're strong enough, though. They are a bit squishy. Maybe the biggest ones would be good.
by xp677
Fri Jun 16, 2023 5:41 am
Forum: Toyota/Lexus
Topic: GS450h Transmission. What engine mounts.
Replies: 16
Views: 4667

Re: GS450h Transmission. What engine mounts.

land rover defender engine mounts, super cheap on ebay.
by xp677
Tue Apr 18, 2023 10:56 pm
Forum: Toyota/Lexus
Topic: What voltage does the lexus GS450H and IS300H inverter actually put out?
Replies: 14
Views: 1253

Re: What voltage does the lexus GS450H and IS300H inverter actually put out?

The inverter puts out the same voltage as you feed into it. You don't need 650V, it's perfectly usable on 320V ish,
by xp677
Sun Apr 09, 2023 4:27 am
Forum: Toyota/Lexus
Topic: Max Rpm Gs450h
Replies: 22
Views: 2106

Re: Max Rpm Gs450h

Pretty sure its limited by mg1 and mg1 max rpm was 14000rpm. It was in my original code from 2020.
by xp677
Sun Mar 26, 2023 11:18 pm
Forum: General
Topic: Registering and changing tax class of an EV conversion in the UK
Replies: 304
Views: 60513

Re: Registering and changing tax class of an EV conversion in the UK

So just the R100 testing, not R10 (EMC) as well?

Are there any places in the UK which provide these services with the general public / home conversions in mind? Last I heard, such testing was out of reach of the public, designed for car manufacturers, etc.
by xp677
Sun Mar 26, 2023 9:28 pm
Forum: General
Topic: Registering and changing tax class of an EV conversion in the UK
Replies: 304
Views: 60513

Re: Registering and changing tax class of an EV conversion in the UK

Quick question which is related to this, not sure if it's worth it's own thread. Does anyone have any insight on if there would be difficulty registering a newly made "kit" car, or custom built vehicle (on a Q plate) which contains an EV powertrain? Would there be issues regarding inspecti...
by xp677
Sun Mar 26, 2023 9:20 pm
Forum: General
Topic: Recommend an AC onboard charger for 2023
Replies: 1
Views: 267

Recommend an AC onboard charger for 2023

Hi all, I'm looking at starting another EV project, I have a full set of components ready to go, however the 48A (2 module)Tesla Gen3 charger which I previously purchased for a project has an issue - of of the resistors near the AC inlet blows off each of the two modules whenever AC is connected. I'...
by xp677
Thu Mar 23, 2023 6:52 pm
Forum: Toyota/Lexus
Topic: Communicating with the Lexus GS450h Inverter/Converter
Replies: 154
Views: 32364

Re: Communicating with the Lexus GS450h Inverter/Converter

I based my assumption on the IC pinout and the logic levels as well. Could easily be another type of transceiver.

The fact that CAN transceivers at the other end seem to work perfectly to communicate with this unit is another thing in favour of the theory that it's CAN transceivers in there.
by xp677
Mon Feb 27, 2023 10:32 pm
Forum: Toyota/Lexus
Topic: Zombie-GS450h Synchronous Serial & harness overkill?
Replies: 13
Views: 1340

Re: Zombie-GS450h Synchronous Serial & harness overkill?

Ah, sorry I only just saw this thread. Part of my job is the specification of systems and cables in applications such as this, I can add a bit of feedback. The drain wire connections don't need to be half/full length, they should be kept short. For differential pairs they are terminated at one end o...