Search found 793 matches

by uhi22
Fri Jul 26, 2024 10:21 am
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

The VCDS does not translate the raw CAN messages. The process is like this: - For example, SavvyCAN (or the real car) sends a CAN message with the intended charge current. The sender would be the BMS in this case. Let's say this is byte 1 of the CAN message with ID 345 (just as an example). - The ch...
by uhi22
Thu Jul 25, 2024 7:07 am
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

Assume we have a log of a working vehicle, which includes the start of the charging session. If we are lucky, we could replay this log against a single charger, and the charger would react. Of course before replaying, we removed the messages which are coming from the charger from the log, to avoid c...
by uhi22
Wed Jul 24, 2024 6:37 pm
Forum: Toyota/Lexus
Topic: GS450h Transmission and Inverter Loss of drive
Replies: 11
Views: 386

Re: GS450h Transmission and Inverter Loss of drive

Maybe it would be helpful to create a time plot of the interesting spot values, to understand what is happening first and what next. For example to see the throttle increasing during slowly pushing it, and observe the torque and speed during this.
by uhi22
Wed Jul 24, 2024 6:29 pm
Forum: Charging
Topic: Open source CCS using AR7420
Replies: 433
Views: 388214

Re: Open source CCS using AR7420

Like this? realEVSE ---(CP1, PP1)----miniPEV----(Ethernet or WLAN or just nothing)---miniEVSE----(CP2, PP2)-----realPEV realEVSE ---(N,PE,L1)--------------------------------------------------------------------------------------------------realPEV For this to work, there are some preconditions to ful...
by uhi22
Wed Jul 24, 2024 6:12 pm
Forum: Projects
Topic: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]
Replies: 761
Views: 662980

Re: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]

It was around 120km in my case. I was hoping, that the way bigger battery has much less resistance, so that the heat produced with guessed 20kW highway cruising is negligible. Are there any data sheets available for the ID battery regarding the resistance and heat capacity? This would allow some sim...
by uhi22
Wed Jul 24, 2024 4:09 pm
Forum: Projects
Topic: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]
Replies: 761
Views: 662980

Re: [DRIVING] VW Touran powered by Nissan Leaf [FINISHED]

The temperature increase while just moderate driving is surprising. Maybe there is still unintended resistance in the module connections (oxide, missing screw torque?). For comparision, my also air-cooled Ioniq, which has a quite low temperature increase while highway driving in summer. The blower o...
by uhi22
Tue Jul 23, 2024 4:50 pm
Forum: Charging
Topic: Open source CCS using AR7420
Replies: 433
Views: 388214

Re: Open source CCS using AR7420

Not sure what you intend to do. Two EVSEs on the same line will destroy the PWM duty and the 12V level. So the real car will not start the communication most likely. And the real charger will most likely detect wrong CP voltage levels and deny charging.
by uhi22
Mon Jul 22, 2024 6:41 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

Yes, two different "languages". The VCDS talks UDS, the real car environment talks plain CAN. Yes, CAN logs of a working vehicle are a good starting point. So find out the part number and software version (should be visible in VCDS), and find out in which vehicle versions the charger is us...
by uhi22
Mon Jul 22, 2024 4:06 pm
Forum: Charging
Topic: Open source CCS using AR7420
Replies: 433
Views: 388214

Re: Open source CCS using AR7420

I never used the button. On my original housing, the button is labelled "Pair", not "Reset". So it seems to set the CentralCoordinator setting to "Auto". This is not what we need here. Just flash the correct PIB on the correct adaptor and do NOT use the button at all. T...
by uhi22
Mon Jul 22, 2024 7:03 am
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

There are two totally different kind of possible communications with the control unit: 1. The "normal", "cyclic" application CAN messages. They have usually CAN IDs below 0x700, and are sent by various control units during the normal car operation. 2. The diagnostic messages, UDS...
by uhi22
Fri Jul 19, 2024 8:21 am
Forum: V2x
Topic: Bidirectional charger with PV Hybrid inverter and pyPLC
Replies: 8
Views: 2339

Re: Bidirectional charger with PV Hybrid inverter and pyPLC

I understood that the spi ethernet driver is already included in current distributions. No idea where I got this info from ;-)

Edit: https://forums.raspberrypi.com/viewtopic.php?t=337718
by uhi22
Wed Jul 17, 2024 10:39 pm
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

File "VW MQB Charger Green LED Blink with VCDS.csv" References: - https://de.wikipedia.org/wiki/Unified_Diagnostic_Services explains which service IDs have which meaning. - https://embetronicx.com/tutorials/automotive/uds-protocol/input-output-control-in-uds-protocol/ sequence chart of UD...
by uhi22
Wed Jul 17, 2024 3:31 pm
Forum: Charging
Topic: charging station / wallbox hardware basics
Replies: 21
Views: 2049

Re: charging station / wallbox hardware basics

Use an oscilloscope to check whether the EVSE transmits the homeplug coordinator packets. These should be strong (several volts) directly on the modem, a little bit weaker on the CP line (because of the serial resistor) and more weaker on the PEVs modem (because double resistors).
by uhi22
Wed Jul 17, 2024 11:51 am
Forum: VW (VAG, Volkswagen, Audi, Porsche etc.)
Topic: MEB Chargers
Replies: 123
Views: 38035

Re: MEB Chargers

Is it possible to share this log?
by uhi22
Wed Jul 17, 2024 11:36 am
Forum: Charging
Topic: charging station / wallbox hardware basics
Replies: 21
Views: 2049

Re: charging station / wallbox hardware basics

* If you are testing with two modems on two machines, do not use the simulation mode. So just use "python pyplc.py P" without "S". * The logs look good, the modems are found, just the EVSE is sitting there and waiting for the first message of the PEV, the SLAC_PARAM.REQ. * Somebo...
by uhi22
Tue Jul 16, 2024 7:45 pm
Forum: Charging
Topic: charging station / wallbox hardware basics
Replies: 21
Views: 2049

Re: charging station / wallbox hardware basics

Did it also needs 150 ohms? Yes, I recommend to use the resistor on both, the PEV and the EVSE. It prevents damaging currents. A possibility for the PEV side is shown here: https://github.com/uhi22/pyPLC/blob/master/doc/hardware.md#dieterlv For the software part, did I need to set PEV MAC address m...
by uhi22
Mon Jul 15, 2024 7:35 pm
Forum: Classifieds
Topic: WTB: Standalone Eltek charger controller
Replies: 8
Views: 401

Re: WTB: Standalone Eltek charger controller

Maybe we can just turn this discussion into an technical discussion about your Eltek, to collect data and ideas. Do you have data sheets, protocol descriptions or something like this which you could share?
And this maybe Johu could shift the thread into a more appropriate sub-forum.
by uhi22
Mon Jul 15, 2024 7:20 pm
Forum: Charging
Topic: Questions about PLC daughterboards
Replies: 2
Views: 345

Re: Questions about PLC daughterboards

Hi and welcome. I'm not sure whether I got what you are planning to do, but just continue :-) The zero-crossing is not required. For the beginning I would start with dupont-wires to connect your board to the host, this gives flexibility to change as you like to a raspberry, beaglebone or esp32. This...
by uhi22
Mon Jul 15, 2024 3:59 pm
Forum: Vehicle Control (VCU)
Topic: Zombieverter: MIC4422YM v.s. FAN3122
Replies: 3
Views: 491

Re: Zombieverter: MIC4422YM v.s. FAN3122

Added the alternative part number to the wiki page, https://openinverter.org/wiki/ZombieVerter_VCU#Hardware
by uhi22
Mon Jul 15, 2024 3:54 pm
Forum: Classifieds
Topic: WTB: Standalone Eltek charger controller
Replies: 8
Views: 401

Re: WTB: Standalone Eltek charger controller

Hi, I think it is unlikely that somebody develops a complete control unit in just two hours (aka 150 euros). If you are fine with studying of the data sheets and hacking some lines of code, I see the following ways: - Add the necessary functionality to the Zombieverter project, supported by the foru...
by uhi22
Mon Jul 15, 2024 3:34 pm
Forum: General
Topic: Open Inverter Data Logger CANLITE
Replies: 29
Views: 2036

Re: Open Inverter Data Logger CANLITE

There can be multiple devices on the bus, and just need to assign them different Node IDs, is that correct? Exactly. The normal use case is, that there is one CANopen "master" (which is the ESP32 web interface) and multiple CANopen "slaves". How is the Node ID changed? * In the ...
by uhi22
Mon Jul 15, 2024 9:02 am
Forum: Charging
Topic: Two FOCCCI's on the same bus
Replies: 4
Views: 783

Re: Two FOCCCI's on the same bus

Implemented a bugfix, so that Clara ignores the neighbors SLAC and SDP. The issue: https://github.com/uhi22/ccs32clara/issues/24 The commit: https://github.com/uhi22/ccs32clara/commit/a705ebd65964578591bd5e3c5ff3de965b6f25a6 The binaries: In the "Artifacts" section of continuous integratio...
by uhi22
Fri Jul 12, 2024 9:16 am
Forum: Charging
Topic: charging station / wallbox hardware basics
Replies: 21
Views: 2049

Re: charging station / wallbox hardware basics

What supply voltage do you measure at the modem? Should be 5V.
by uhi22
Fri Jul 12, 2024 5:48 am
Forum: Charging
Topic: Two FOCCCI's on the same bus
Replies: 4
Views: 783

Re: Two FOCCCI's on the same bus

The CAN message 88 is strange. Normally, if no CAN mapping is configured, the Foccci should just send two bootloader messages, as shown here: https://openinverter.org/forum/viewtopic.php?p=64555#p64555 What does the CAN mapping page in the web interface show? Side topic: Does it work to configure di...
by uhi22
Wed Jul 10, 2024 9:20 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 623
Views: 9491738

Re: Develop a QCA7000 board?

Landsi wrote: Wed Jul 10, 2024 8:23 pm JLCPCB was picky about the footprint of L13 - see image. They would have placed it, but “without right to complain”
That's funny. I orderd the V5 two weeks ago, and there was no complaint at that time. I added the topic on the todo list.