diff --git a/README.md b/README.md index aecfce3..7fc527b 100644 --- a/README.md +++ b/README.md @@ -41,7 +41,8 @@ To get the smallest possible ROM & RAM footprint, set `TWIZY_DEBUG_LEVEL` to 0 a - [SEVCON configuration](extras/SEVCON-Configuration.md) - [Charger configuration](extras/CHARGER-Configuration.md) - - [Prototype](extras/Prototype-Blazej.md) + - [Prototype (Lead acid)](extras/Prototype-Blazej.md) + - [Build #2 (Leaf cells)](extras/Blazej2-Leaf-Cells.md) ## Hardware requirements diff --git a/extras/Blazej2-Leaf-Cells.md b/extras/Blazej2-Leaf-Cells.md new file mode 100644 index 0000000..14191cf --- /dev/null +++ b/extras/Blazej2-Leaf-Cells.md @@ -0,0 +1,31 @@ +# Build #2 by Błażej Błaszczyk using Nissan Leaf cells + +Błażejs second battery is based on used Nissan Leaf cells. Błażej bought a used 2015 Nissan 24 kWh pack for 14000 PLN (~3300 EUR). + +The 24 kWh pack consists of 48 modules with ~500 Wh each. He disassembled the pack and managed to put 21 modules into the Twizy (tight fit, original case won't fit around these). + +This pack uses a simple standard 14 cell hardware BMS for the cell protection and balancing (hosted on the lower PCB). The upper PCB hosts the VirtualBMS Arduino components, basically following the [example scheme](https://github.com/dexterbg/Twizy-Virtual-BMS/blob/master/extras/Twizy-Battery-Part-List.md#example-arduino-wiring-scheme). Cell voltages are measured using voltage dividers over a multiplexer, pack current is measured using a LEM hall sensor and temperatures using LM35. An HC-06 module is included for Bluetooth connectivity. + +Real world driving range with this 10.5 kWh pack is around 130-140 km. Due to the higher capacity, the battery voltage is more stable than the original battery, even under high load. + +If you'd like to know more, contact Błażej Błaszczyk . + + +## Images + +(click to zoom) + +[![20170730_235336-nm.jpg](Blazej2-Leaf-Cells/20170730_235336-sm.jpg)](Blazej2-Leaf-Cells/20170730_235336-nm.jpg) +[![DSC_0007-nm.jpg](Blazej2-Leaf-Cells/DSC_0007-sm.jpg)](Blazej2-Leaf-Cells/DSC_0007-nm.jpg) +[![DSC_0009+info-nm.jpg](Blazej2-Leaf-Cells/DSC_0009+info-sm.jpg)](Blazej2-Leaf-Cells/DSC_0009+info-nm.jpg) +[![DSC_0009-nm.jpg](Blazej2-Leaf-Cells/DSC_0009-sm.jpg)](Blazej2-Leaf-Cells/DSC_0009-nm.jpg) +[![DSC_0010-nm.jpg](Blazej2-Leaf-Cells/DSC_0010-sm.jpg)](Blazej2-Leaf-Cells/DSC_0010-nm.jpg) +[![DSC_0011-nm.jpg](Blazej2-Leaf-Cells/DSC_0011-sm.jpg)](Blazej2-Leaf-Cells/DSC_0011-nm.jpg) +[![DSC_0012-nm.jpg](Blazej2-Leaf-Cells/DSC_0012-sm.jpg)](Blazej2-Leaf-Cells/DSC_0012-nm.jpg) +[![DSC_0014+info-nm.jpg](Blazej2-Leaf-Cells/DSC_0014+info-sm.jpg)](Blazej2-Leaf-Cells/DSC_0014+info-nm.jpg) +[![DSC_0014-nm.jpg](Blazej2-Leaf-Cells/DSC_0014-sm.jpg)](Blazej2-Leaf-Cells/DSC_0014-nm.jpg) +[![DSC_0015-nm.jpg](Blazej2-Leaf-Cells/DSC_0015-sm.jpg)](Blazej2-Leaf-Cells/DSC_0015-nm.jpg) +[![DSC_0016-nm.jpg](Blazej2-Leaf-Cells/DSC_0016-sm.jpg)](Blazej2-Leaf-Cells/DSC_0016-nm.jpg) +[![DSC_0019-nm.jpg](Blazej2-Leaf-Cells/DSC_0019-sm.jpg)](Blazej2-Leaf-Cells/DSC_0019-nm.jpg) +[![DSC_0022-nm.jpg](Blazej2-Leaf-Cells/DSC_0022-sm.jpg)](Blazej2-Leaf-Cells/DSC_0022-nm.jpg) + diff --git a/extras/Blazej2-Leaf-Cells/20170730_235336-nm.jpg b/extras/Blazej2-Leaf-Cells/20170730_235336-nm.jpg new file mode 100644 index 0000000..ffdcf31 Binary files /dev/null and b/extras/Blazej2-Leaf-Cells/20170730_235336-nm.jpg differ diff --git a/extras/Blazej2-Leaf-Cells/20170730_235336-sm.jpg b/extras/Blazej2-Leaf-Cells/20170730_235336-sm.jpg new file mode 100644 index 0000000..78c7e60 Binary files 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The pack voltage is measur If you'd like to know more, contact Błażej Błaszczyk . +Please also take a look at [Błażejs build #2](Blazej2-Leaf-Cells.md). + ## Videos