Electric Bobby Car Hoverboard Upgrade
From ivc wiki
Jump to navigationJump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
This project puts two pairs of hoverboard motors in a Bobby Car toy vehicle, to give it 4x4 traction and a top speed of 29km/h with turbo activated.
Specifications
- Project start: January 2019
- Main controller: STM32F103 72MHz ARM Cortex-M3 core
- Motors: 4x direct drive 3-phase brushless DC electric wheel hub motors, 36V 350W ea
- Tire type: non-pneumatic rubber tire, road pattern
- Tire size: 7-inch / 170 mm
- Battery: Lithium-ion rechargeable 18650-cells, 10S2P 36V 4400mAh 158.4Wh pack with XT60 connector
- Upgrade: Controller can handle 13S (48V), 12S battery upgrade easiest
- Charger: Lithium-ion charger 42V 2A 3-pin connector with built-in fan
- Upgrade: External charger for anything else
- Internal connectors: JST Sales America B4B-XH-A(LF)(SN) 2.5mm pitch
Inspiration
- Larsm Allrad e-Bobby Car - great write up and custom firmware fork
- Niklas Fauth Hoverboard firmware hack - original firmware