Search found 26 matches

by marengo
Wed Jun 08, 2022 12:44 pm
Forum: Getting Started
Topic: I think I CAN, I think I CAN...
Replies: 189
Views: 35149

Re: I think I CAN, I think I CAN...

Thanks for the documentation of your efforts. I have been wanting to dive into the CAN but so far am paralyzed. For instance, I'm not sure what files to download from https://github.com/collin80/SavvyCAN/releases/tag/continuous and what to do with them. I use a windows computer primarily and know no...
by marengo
Sat May 01, 2021 11:20 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

I bet the seller would know what bike it is for. But you brought up a good point. The throttle data is on its own CAN with the inverter. I'm not sure if it is CAN1 or CAN2 yet. Somehow the throttle position is "digitized" for the benefit of the OEM inverter. My throttle is a regular Domino...
by marengo
Thu Apr 29, 2021 12:41 am
Forum: General
Topic: SavvyCAN Setup
Replies: 9
Views: 2563

Re: SavvyCAN Setup

I already have a Lawicel based CAN to usb adapter http://www.can232.com/?page_id=16

Is it safe to assume that it would be well worth the $100 spent to just go with the EVTVdue board instead of trying to cobble together lawicel and savvycan?
by marengo
Thu Apr 22, 2021 11:51 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Hi do you know what inverter you actually have? They evolved along the way and are slightly different. MX inverters wouldnt interchange with MXR inverters, for example...
by marengo
Tue Apr 20, 2021 12:34 am
Forum: Hyundai/Kia
Topic: HSG - Hyundai/Kia
Replies: 35
Views: 16603

Re: HSG - Hyundai/Kia

One of you must have posted the report on another thread, i don't know how else i could have landed upon it:) https://www.energy.gov/sites/prod/files/2014/03/f13/ape006_burress_2013_o.pdf Although search engines might have taken me to the HSG go cart, which links to the above... http://isopack.blogs...
by marengo
Mon Apr 19, 2021 12:48 am
Forum: Hyundai/Kia
Topic: HSG - Hyundai/Kia
Replies: 35
Views: 16603

Re: HSG - Hyundai/Kia

20210411_131033.jpg
I was surprised to see each cable is just 6 strands of the motor winding wires crimped to a ring terminal. Does this limit the amps it can be force-fed?
by marengo
Sat Apr 17, 2021 5:24 pm
Forum: BMW
Topic: Info on BMW hybrid battery packs?
Replies: 436
Views: 521110

Re: Info on BMW hybrid battery packs?

20210417_173324.jpg
Which 2017 models may have come with catl cells? The modules i have are 12s stacks and are phev2 types. I'm trying to figure out what to do with an extra bms board and need to start with actually identifying what car it was part of...
by marengo
Fri Apr 16, 2021 12:59 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

20210415_164442.jpg The sine cosine sensor got here in 4 days via DHL. For some reason, DHL is sitting on the open inverter since April 1. Next step is to get it installed into the alta housing. I ordered some trigger magnets that go on the end of the motor shaft. They look the same but one is a hi...
by marengo
Mon Apr 12, 2021 12:32 pm
Forum: Hyundai/Kia
Topic: HSG - Hyundai/Kia
Replies: 35
Views: 16603

Re: HSG - Hyundai/Kia

20210410_133242.jpg
I like how small it is but I weighed it at 12 kg. As I wait for my OI kit, I've scouted the lebowski route. Kiwifiat, do you want to build two lebowskis for fun and profit? :)
by marengo
Sat Apr 03, 2021 12:34 am
Forum: Hyundai/Kia
Topic: HSG - Hyundai/Kia
Replies: 35
Views: 16603

Re: HSG - Hyundai/Kia

I'm going to get one to play with, sounds promising. Any advantage to get the newest model with the attached belt tensioner? not sure if people still use the grooved belt or switch to toothed belts or sprockets. north american option for the connector? https://www.ebay.com/itm/ASSEMBLED-WATERPROOF-1...
by marengo
Tue Mar 30, 2021 1:06 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Yes so the issue is that the openinverter board supplies 5V for all generic rotor sensors. It wants sine waves in return centered around 1.65V. The problem is that the specific sensor you and I have chosen centers around 2.5V, so that has to be "conditioned" downward to feed johubrain its'...
by marengo
Mon Mar 29, 2021 4:08 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Ok the ball is officially rolling with a tiny transatlantic cash transfer (order). :D Next up is ordering another encoder in case I don't figure out how to get the OEM working. The encoder disc I'll buy offers two options regarding analog sinusoidal outputs. I assume I want the one that has 4 wires ...
by marengo
Sun Mar 28, 2021 12:03 pm
Forum: Projects
Topic: '13 CRF250L motorcycle
Replies: 49
Views: 7720

Re: '13 CRF250L motorcycle

Walk Mode sounds brilliant. "electric overspin" is one of the few weaknesses I have found in my electric motorcycles ridden over rocks and roots and mud.
by marengo
Sun Mar 28, 2021 12:00 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

I'm working under the premise that the OEM mcu is hopelessly locked up. My jtag hacker friend explained that we dont have the proprietary bootloader to do anything with the mcu. I'm not too upset about losing the other systems like the display/dash and the accessory control module. If I can get the ...
by marengo
Sat Mar 27, 2021 11:12 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

inverterboard1.jpg I'm crawling through the learning process so it takes me a while to respond to all the help. Drilling down on the row of optoisolators on the board labelled 'D" From left to right they are 1Low, 2L, 3L, 1High, 2H and 3H (these are Avago "IPM gate drive interface optocou...
by marengo
Thu Mar 18, 2021 1:09 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Position sensor situation. I'm pretty sure I have an absolute angle position encoder that is configured for SSI output. It is located on the end of the shaft and the housing is 26 mm inside diameter. https://ams.com/documents/20143/36005/AS5134_BD000220_1-00.png/03309b5b-7edd-bd85-ae8a-5d2749bdaa27...
by marengo
Thu Mar 18, 2021 12:53 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Hmm. It's a nice sensor, I'd be tempted to make it work. Openinverter will take an SPI encoder input, it would be worth finding the spec for this SSI output, hopefully there won't be too much of a change to the openinverter firmware to get them to talk nicely. Worst case, its a great enclosure to m...
by marengo
Sat Mar 13, 2021 2:52 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Position sensor situation. I'm pretty sure I have an absolute angle position encoder that is configured for SSI output. It is located on the end of the shaft and the housing is 26 mm inside diameter. https://ams.com/documents/20143/36005/AS5134_BD000220_1-00.png/03309b5b-7edd-bd85-ae8a-5d2749bdaa27 ...
by marengo
Fri Mar 12, 2021 12:50 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Looking at the big picture for a moment, everything above the level of the row of opto-isolators is low voltage inputs and outputs that could be handled by the Johannes brain and V3 board. We would have PWM input flowing down into the igbts and feedback and error info flowing back up to the brain. E...
by marengo
Tue Mar 09, 2021 1:41 am
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

What I'm calling the igbt brick 20200815_064311.jpg The linear connector towards the bottom of the inverter board sits on top of these pins. Under the bricks cover is another board holding the gate drivers 20200521_181809.jpg I'll edit the text in the previous post with some of the device info
by marengo
Mon Mar 08, 2021 12:46 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

inverterboard1.jpg Connectors onto board: 1. Current sensor 2. "Main" 12 volt, CAN1, CAN2, Throttle? 3.tiny wires and connector to battery POS and NEG 4.Temps sensor near IGBT housing 5. Temp sensor in motor 6.Encoder. I'm told it is "SPI" as the traces are marked RACLK and RACS...
by marengo
Fri Mar 05, 2021 11:48 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Yes, ideally I could fix or figure out why the components don't work. I had a volunteer try to communicate with the bike through the OEM data port. He couldn't get any response from the MCU either through CAN or (I think) JTAG. I have an OEM diagnostic laptop with the Alta program which is in part a...
by marengo
Fri Mar 05, 2021 3:40 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Reading the wiki on FOC, I read "Field oriented control is only implemented for permanent magnet motors. Moreover it is optimized for IPM motors (interior permanent magnet). So it will not drive PMSM or BLDC motors in an efficient manner. " First big question: is openinverter a good choice...
by marengo
Wed Mar 03, 2021 8:33 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Inverter details so far: (motor and igbt brick are water cooled) Mitsubishi 300A 600V igbts with 6 integral gate drivers? http://www.mitsubishielectric.com/semiconductors/php/eTypeNoProfile.php?TYPENO=PM300CG1C065&FOLDER=/product/powermodule/ipm/g1_series Inverter Microcontroller TMS570 https://...
by marengo
Wed Mar 03, 2021 8:06 pm
Forum: Projects
Topic: Alta electric dirtbike OEM project
Replies: 35
Views: 5624

Re: Alta electric dirtbike OEM project

Thanks!
20210207_182607.jpg
I think it is PMSM with absolute position encoder
AMS motor position sensor
https://ams.com/as5134#tab/applications

Motor also has temperature sensor, 6 magnets and 14000 rpm redline