Search found 287 matches

by konstantin8818
Fri Dec 03, 2021 11:11 am
Forum: Toyota/Lexus
Topic: GS450H MG1 and MG2 Torque Ratio and oddity in inverter protocol [SOLVED]
Replies: 7
Views: 2733

Re: GS450H MG1 and MG2 Torque Ratio and oddity in inverter protocol [SOLVED]

So that means, it would be impossible to use current firmware when planetary carrier is welded? =\ That makes things much harder for me.
by konstantin8818
Wed Nov 17, 2021 4:43 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

PatrcioEV-ATX wrote: Wed Nov 17, 2021 2:35 pm What type of pump? I see all kinds of different ones listed for BMW and a wide range of prices. What about this one:
I bought two of these:
https://www.ebay.com/itm/124015184843
Only here they are much cheaper. Around 10 to 20 USD.
Sipmle reliable 12V pumps.
by konstantin8818
Sun Nov 07, 2021 8:47 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Fantastic work on locking ring. How are you progressing on coupling MG1 and MG2 together. Are you planning to come up with something other than welding? Thank you! Helical gears are not so easy to measure, to create some sort of locking brackets. Also carrier case is welded, so to install brackets ...
by konstantin8818
Sat Nov 06, 2021 2:13 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Just a friendly reminder for those who is about to use standard GS450h HV cables as they is. They tend to wear under interference screen caps. In some period of time a short circuit might occur. 20211106_133614.jpg 20211106_133638.jpg Don't know if this issue was already exposed, so warning just in ...
by konstantin8818
Thu Nov 04, 2021 7:30 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

SWEET! I am certain this is superior to my (alternate) plan of just filling that space with J-B Weld :D I just had an option of milling this part for free. It is less costly to cut those from 2mm stainless steel with laser and replace only metal clutch rings. Atleast now I'm absolutely certain that...
by konstantin8818
Wed Nov 03, 2021 1:08 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

I've fabricated that locking ring for high range, I've shared here before, from solid piece of aluminum.
It fits like a glove. :)
20211102_160546.jpg
20211103_123441.jpg
20211103_123728.jpg
by konstantin8818
Wed Oct 20, 2021 7:57 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

NiHaoMike wrote: Wed Oct 20, 2021 12:07 am Might it be possible to use a fuel pump as the electric oil pump?
I believe ATF is not good for every type of pumps. This fuel pump also has to be high pressure, 100psi = 6.8 bar.
Anyway, only real time testing will say if it any good.
by konstantin8818
Mon Oct 18, 2021 10:34 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

It looks like if the ring gears are welded in place, MG1 would have a direct coupling to the wheels allowing MG1 to provide reverse. This somehow passed by my head at the first place :idea: Yup, seems like no need for locking ring, but you need to energize on of range solenoids. Clutch discs will o...
by konstantin8818
Sun Oct 17, 2021 8:28 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

If I'm right, the mechanical pump is connected to the ring gear (green) of MG1. If the engine (blue) is locked and MG1 (yellow) turns, then the ring gear will turn and I would say the mechanical pump would also turn. But I think the pro's here can give the correct answer. https://bioage.typepad.com...
by konstantin8818
Fri Oct 08, 2021 7:09 pm
Forum: Toyota/Lexus
Topic: Toyota/Lexus transaxle/transmission
Replies: 16
Views: 4728

Re: Toyota/Lexus transaxle/transmission

A question about the P410, the cars with this transaxle have an EV-mode where the car runs without the ICE. However, the oil pump is driven by the engine shaft. How does this work? It can drive up to 50 km/h as long as there is a battery charge. Probably it has got the same type of oil pump drive a...
by konstantin8818
Tue Oct 05, 2021 3:12 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Test sample of the ring for permanently locking the high range was cut from PVC plastic. Laser wasn't really accurate(cheap model for advertisement production) and burned a little too much into the ring, but measurements seems to be taken correctly, so here dxf file for those who interested. You nee...
by konstantin8818
Mon Oct 04, 2021 10:40 pm
Forum: Toyota/Lexus
Topic: Prius water pump wiring diagram
Replies: 14
Views: 4535

Re: Prius water pump wiring diagram

MattsAwesomeStuff wrote: Mon Oct 04, 2021 2:49 am Half-hijack, but, models/years in particular? I'm a complete novice.
Mercedes - E W211 2002-2009 auxiliary water pump. Two contacts 12v, fits toyota hose diameter.
by konstantin8818
Sun Oct 03, 2021 11:29 pm
Forum: Toyota/Lexus
Topic: Prius water pump wiring diagram
Replies: 14
Views: 4535

Re: Prius water pump wiring diagram

From what I've heared, those are not really reliable. People replace them with simple 12V pumps from Mercedes or VAG. I've bought two VAG pumps for my invertors and they just work.
by konstantin8818
Tue Sep 28, 2021 7:19 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Continuing torturing the transmission. :) I disassmbled that two-step planetary thing with hard to pronounce name, and took measurements of clutch discs of high range. I will not place a dxf drawing here yet. First I need to make sure that measurements are taken correctly. Clutch pack thickness is 3...
by konstantin8818
Sun Sep 26, 2021 6:13 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

The VSS is the rear most connector on the left side of the transmission, see pic. It's the black sensor with the bright white connector in this photo: Yes, I've noticed it today. Unfortunately my harness missing that particular connector for some reason. I guess I'll find something to replace it. T...
by konstantin8818
Sun Sep 26, 2021 5:34 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

All of the solenoids should be on PWM outputs, so one can program their own economiser? Or were they not put on PWM capable outputs in the VCU? Unfortunately, I don't know if solenoids need economizers or PWM signal. Anyway my intention now is to get rid of all hydraulics and only left mechanical p...
by konstantin8818
Fri Sep 24, 2021 5:30 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

There is a VSS on the L110 with 15 teeth if that helps your plans. I'm using that signal with a converter box to run my mechanical speedometer/odometer. Do you have an idea of what RPM at which you'll cut the power to the electrical pump? I suppose you could map the PWM signal to alter speed of pum...
by konstantin8818
Thu Sep 23, 2021 11:01 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

What about putting code into the VCU to only run the mechanical pump over a stated RPM? Or would it have to be based on oil pressure to really be effective? How you're going to determine work of mechanical pump? It either spins proportional with MG1 if carrier is welded or it stays still if input s...
by konstantin8818
Sun Sep 19, 2021 1:51 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

I implemented cheap universal PWM signal generator HW-753 to drive electric oil pump. Tested at 1kHz and 50% duty. It works. =)
Good thing is that it can handle from 5 to 30 volts and can be adjusted on the go. Bought it at local market for 3 EURO.
by konstantin8818
Sat Sep 18, 2021 10:17 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

The gearbox is oil cooled, and has an oil-water heat exchanger on the left side. Without the pump, cooling performance will likely suffer. An alternative would be to lock the power-split device, and allow the input shaft to rotate by MG1 - providing the direction is correct (and I don't think it wi...
by konstantin8818
Sat Sep 18, 2021 1:51 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

It might be fine for the clutch to engage only when the shaft starts to spin, as long as you set a long enough throttle ramp-up time. What about the gearbox solenoids, are they designed to be powered without cooling by fluid flow? Just to be sure I'd deactivate them when the car is stationary if th...
by konstantin8818
Sat Sep 18, 2021 8:18 am
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Mechanical oil pump will not generate any pressure while vehicle is stationary. That's why the transmission has a secondary electric pump. Without oil pressure the clutch packs will disengage at stop lights. My gearbox equipped with electric pump. But I don't think it is designed to work constantly...
by konstantin8818
Fri Sep 17, 2021 2:26 pm
Forum: Toyota/Lexus
Topic: GS450H Discussion
Replies: 377
Views: 75239

Re: GS450H Discussion

Did anyone welded planetary carrier? Asking becase for me it looks like a good idea, so mechanical oil pump will work and no need for complex and expensive electric oil pump. My only concern is about MG1 and MG2 RPM and direction of rotation.
by konstantin8818
Mon Jul 26, 2021 6:19 pm
Forum: Toyota/Lexus
Topic: Toyota Auris and Yaris Inverter Logic board
Replies: 139
Views: 39262

Re: Toyota Auris and Yaris Inverter Logic board

chuuux wrote: Sun Jul 18, 2021 8:34 pm Hi. Did you find it out?
Hi. At the moment I'm tooooo busy at job. No time to visit forum. Damien answered he forgot jumpers, so removing resistor is the way to switch to resolver. I haven't time to work with the board at the moment as well.
by konstantin8818
Fri Apr 23, 2021 2:38 pm
Forum: Toyota/Lexus
Topic: Toyota Auris and Yaris Inverter Logic board
Replies: 139
Views: 39262

Re: Toyota Auris and Yaris Inverter Logic board

So... Block IV arrived :)
And my first question: to make it work with resolver I need to remove R39 and R38? As I remember correct, Damien you said you'll make a jumper for switching between encoder/resolver?