Recent content by jumpjack

What about these new amazing cells from Tesla? They named them 4860.... erroneously, because it should have been 48600 (*), but what about their tech spec? I read "5x energy density" but also "+15% range", so what's wrong here? Which are real specs?!? (*) Lithium battery correct cylindrical...

I can't understand how a person can think of patenting a method... anyway this guy (Jerry Leitz) did it: he patented a method to determine how to connect hall and phase wires between controller and motor... METHOD FOR DETERMINING CORRECT PHASING OF A THREE-PHASE BRUSHLESS DC MOTOR But please...

Is there any tutorial/manual for this regulator? I read it is also for lithium, but cant find any screenshot showing charge curve or battery type.

To know exact behaviour, currents and timings of a fuse, you have to study the curves in its datasheet. Fuses don't just "break", it's a matter of time and energy.

New, longlife NCM battery (NCM532/AG) , thanks to new type of electrolyte and "artificial graphite (AG)": up to 5000 cycles at 1C and DoD100%, 1 year storage time without self-discharge: http://jes.ecsdl.org/content/166/13/A3031.full

Did anybody figure out what this slider actually means? Could it be the width of the "joystick dead zone"?

I also tried decoding the error codes, I obtained this picture: This BASIC source decodes the raw data into human readable error messages (if above picture is right): Sub conv(Data9Data10) Dim ErrorText(15) Dim ErrorNum(15) ​ ErrorText(0) = "n/a 1" ErrorText(1) = "Trac­tion battery over...

using documentation available around and documwntation from Kelly, I was able to build this table: It summarizes all serial commands I am aware of. I didn't start experimenting yet, anyway I'm going to do that using an ESP32 module rather than an arduino, as it has builtin wifi, bluetooth and...

Found something about Kelly usage of CANBUS protocol: http://www.oblibene.biz/userdata/shopimg/elektrolode/file/KBL%20User%20Manual.pdf Table 2: KBL Controller CAN Commands List (page 15) Any suggestion about USB/CANBUS module which could be used both on PC and on Arduino? I also received...

They were recently published two interesting documents describing in detail the connections of an "advanced" BMS inside an EV. "Advanced" because it does not just manage the cells, but the whole vehicle, thanks to several contactors and sensors. The BMS comes in two variants: modular (BMS-M12...

How can I usae CANBUS to read data from a kelly controller?

The power arriving to my motor is sometimes cut down from nominal 5 kW to 4 kW, then 3kW, and eventually to 0.8 kW (10A at 80V). BUT Battery is full (80V for a 72V nominal battery). Cells are fine (lowest is at 3.3V, highest is 3.34V) Temperature can vary from 15°C to 35°C when problem arises...

I am encountering some issues on my electric car since some months, and nobody here appears to be able to figure out what is going on, even the shop which sold it to me; they totally replaced the BMS and the service battery, thinking that they could in some way affect the electrical system of...

I am talking of raw numbers, not charts.

If database on https://lygte-info.dk/ was public it would be possible to create a sparse chart showing various LVC values. Is there a method to access raw data?