2012 Camry Inverter AVV50R

[johnspark]

Zechy, have you found out anything about the DC DC booster?

kind regards.

[Zechy]

Awesome work Zechy :):), I will use your Camry version for my inverter in my E39 . Also many thanks for going over this data. Makes me think it was a worthwhile endeavor.

Team work

I'll see if I can get the DCDC to work. From what I read on the forum about the Prius DCDC converter, it should not be hard. The Camry connector also has 5 pins like the Prius, only it's smaller.

Prius DCDC:
https://openinverter.org/wiki/Toyota_Pr ... _Converter

[joeflickers]

Good news. I made a rookie mistake - bad wiring on serial comms.
I can now spin the motors using the Camry inverter.

Initially got a HS temperature error as soon as I started the motors.
TempHS too high.png
(My motor temperatures are way off. Will have take a look at some point)

I cloned Damien's branch: git clone -b DM_Work https://github.com/damienmaguire/Stm32-vcu.git
From the data I captured it looks like the water temperature is only on column 20 so I changed the code to row 472:
temp_inv_water=mth_data[20];

I modified the GS300h profile to run the Camry inverter in this bin file: stm32_vcu_AVV50R.bin

This is good.. I'll try this with my gs300h inveter running gs450h motor.. I get the same (tmphs error) whenever I start the inverter.. Have a question though. My gs450h motor and inverter was removed from a 2014 model and the inverter pinout is similar to that of gs300h

[Zechy]

The connectors do look very similar to the Camry.

[Zechy]

Great news Zechy. I have the same inverter and Damien's ECU so very pleased to note your success. Perhaps I can help with the temperatures some how.

I got a new Zombieverter board with the Wemos connector. My temperatures now work!

[Zechy]

I'm running the Camry inverter with the GS450h gearbox quite successfully. My car is not on the road yet so just short test.

I get about 185amps from the inverter on full throttle.

One design mistake is that I only have 214V nominal and the motors don't like it. They start jittering when the battery drops to around 215V. Fully charged the pack is 240V. I've ordered more cells.

[Jacobsmess]

I'm running the Camry inverter with the GS450h gearbox quite successfully. My car is not on the road yet so just short test.

I get about 185amps from the inverter on full throttle.

One design mistake is that I only have 214V nominal and the motors don't like it. They start jittering when the battery drops to around 215V. Fully charged the pack is 240V. I've ordered more cells.

Damian has showed the GS450H motors running quite smoothly at around 60V on some of his videos from memory.

[Electtic skids]

I'm running the Camry inverter with the GS450h gearbox quite successfully. My car is not on the road yet so just short test.

I get about 185amps from the inverter on full throttle.

One design mistake is that I only have 214V nominal and the motors don't like it. They start jittering when the battery drops to around 215V. Fully charged the pack is 240V. I've ordered more cells.

OEM GS450h battery pack specs: motor 1KM, system voltage 650V, battery NiMH 288V 6.5 Ah
via https://toyota-club.net/files/faq/21-12 ... _tr_en.htm

Did the extra voltage solve the motor jitter?

[Jacobsmess]

Good news. I made a rookie mistake - bad wiring on serial comms.
I can now spin the motors using the Camry inverter.

Initially got a HS temperature error as soon as I started the motors.
TempHS too high.png
(My motor temperatures are way off. Will have take a look at some point)

I also get the odd -27.71degC temp reading. Did you get to the bottom of this?

[Zechy]

I also get the odd -27.71degC temp reading. Did you get to the bottom of this?

To be honest I can't recall if it started working. I switched to a 300h inverter because I couldn't get the jerking to stop. But I believe now it wasn't a Camry inverter issue

I hope to revisit the Camry in the next few months

[Zechy]

OEM GS450h battery pack specs: motor 1KM, system voltage 650V, battery NiMH 288V 6.5 Ah
via https://toyota-club.net/files/faq/21-12 ... _tr_en.htm

Did the extra voltage solve the motor jitter?

The voltage was a misdiagnosis. The jitter didn't change. I tried a 300h inverter which did the same.
Today I managed to get the 300h working by defining the temp_inv_water as 8bit instead of 16. (see BMW Z3 discussion)
I think it will work for the Camry. Hope to revisit it in the next few months

[PetersonOctavius]

Hi there,
Any updates? I ordered a camry inverter to pair with my gs450h
Its the 9200 33171
I might need some help to add the AVV50R bin to the vcu … still need to order the vcu

[PetersonOctavius]

I used these values for torque request:
htm_data[5]=(mg1_torque*-1)&0xFF; //negative is forward
htm_data[6]=((mg1_torque*-1)>>8);
htm_data[11]=htm_data[5];
htm_data[12]=htm_data[6];

//mg2
htm_data[31]=(mg2_torque)&0xFF; //positive is forward
htm_data[32]=((mg2_torque)>>8);
htm_data[37]=htm_data[31];
htm_data[38]=htm_data[32];

This works for me. I get forward and back spinning of the wheels on my E39. I added a Camry option to the attached file if anybody wants to give it a try
CamryOption.png
stm32_vcu_1.1_Camry.bin

hi there, newbie question
how do is add the stm32_vcu camry bin to my vcu?

[PetersonOctavius]

I managed to remove the DCDC converter motherboard from the G9200-33171 inverter
took a few pictures, thought i'd share the here

i know nothing about reverse engineering... but i think red and white should be pulled to +12V to enable it