Difference between revisions of "Electric Bobby Car Hoverboard Upgrade"

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[[Image:bobby_car_hoverboard_upgrade_overview.png|500px|right]]
 
 
This project puts four 350W hoverboard motors in a Big Bobby Car toy vehicle, to give it independent four wheel drive and a top speed of 29km/h with turbo activated. All controlled by two potentiometer triggers on the steering wheel.
 
This project puts four 350W hoverboard motors in a Big Bobby Car toy vehicle, to give it independent four wheel drive and a top speed of 29km/h with turbo activated. All controlled by two potentiometer triggers on the steering wheel.
  
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== Overview ==
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[[Image:bobby_car_hoverboard_upgrade_overview.png|600px]]
  
 
== Inspiration ==
 
== Inspiration ==

Revision as of 17:04, 27 February 2019

This project puts four 350W hoverboard motors in a Big Bobby Car toy vehicle, to give it independent four wheel drive and a top speed of 29km/h with turbo activated. All controlled by two potentiometer triggers on the steering wheel.

Specifications

Hoverboard left platform.jpg
Hoverboard left side circuit board4.jpg
  • Project start: January 2019
  • Main controller: STM32F103 72MHz ARM Cortex-M3 core
    • Flasher: ST-Link V2 Programming Unit clone
  • Motors: 4x direct drive 3-phase brushless DC electric wheel hub motors with hall effect sensors, 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
  • Vehicle base type: BIG New Bobby Car Red
  • Dimensions assembled: L57 x W30 x H39 cm
  • Original load-bearing: 50 kg max.



Overview

Bobby car hoverboard upgrade overview.png

Inspiration

Schematics

Pin-out

Pin-out of the hoverboard connections, by NiklasFauth:

Hoverboard pinouts main board.png

STM32F103 MCU pin-out:

Hoverboard pinouts STM32F103.png