Unlucky 13
AKA cookie monster
AKA slightly leftward sloping pinion
AKA STEM celled
AKA The Independent Varistor
New power racing series car from the ground up. Double-alternator split-axle torque vectoring track dominator.
Contents
Chassis
Mechanical design of the kart. everything rides on them.
Steering
Leave room to fit a motor for autonomous steering.
Front Suspension
Use similar measurements from https://www.youtube.com/watch?v=VbReLNi2JP4.
Double wishbone design if we have time.
Rear suspension
2 3/4"pillow block bearings for each half shaft.
Each half shaft is 3/4" with 3/16" keyway, uses the tires we already have.
Braking
Front brakes are beefier than the rear bike disk brakes.
4 wheel braking, throttle drops to zero when the brake is pressed.
Powertrain
Make the kart go. Battery, controller, motors
Batteries
13s6p 18650
- Charged: 4.2*13=54.6
- Storage: 3.7*13=48.1
- Low: 3.4*13=44.2
Battery Protection: https://www.ebay.com/itm/48V-35A-13S-BMS-PCB-Board-PCM-Protection-Board-Balance-For-e-bike-Battery-US-/312094263933
Charging situation
Put some voltage in the solar controller, make it say 01, hit ok to charge.
Motor
Using alternators. To make alternator go, need field current. Small connector, apply 2-3V, 5A
Motor Controller
Vedder VESC ESC
http://vedder.se/2015/01/vesc-open-source-esc/
Control Schemes
- BLDC: some control scheme
- FOC: Field oriented control: Needs encoder, then would work.
- AS5047 is one that VESC has built in support for
* Required Bodge: Tie MOSI or whatever the controller to sensor to gnd or 3v3
Accessories/Safety systems
Make sure we have lights see at night. also make sure the kart does not burn down. More creative systems including a "steering wheel" display to display information and change settings.
Shroud
The moxie maker. Most of the competition points will come from this,
https://www.ironhorsehelmets.com/cake-freak-motorcycle-helmet-cover/
