US 11,052,960 B2
Transportation device with selective enabling of fore-aft auto-balancing
Shane Chen, Camas, WA (US)
Filed by Shane Chen, Camas, WA (US)
Filed on Feb. 22, 2019, as Appl. No. 16/283,733.
Claims priority of provisional application 62/634,115, filed on Feb. 22, 2018.
Prior Publication US 2019/0351964 A1, Nov. 21, 2019
Int. Cl. B62K 11/00 (2006.01); B62J 99/00 (2020.01); B62K 1/00 (2006.01); B62K 23/08 (2006.01); B62J 45/40 (2020.01)
CPC B62K 11/007 (2016.11) [B62J 99/00 (2013.01); B62K 1/00 (2013.01); B62K 23/08 (2013.01); B62J 45/40 (2020.02)] 20 Claims
OG exemplary drawing
 
1. An auto-balancing transportation device, comprising:
a wheel structure defining a longitudinally-disposed central vertical plane, when in an upright position;
a first foot platform provided on one lateral side of the wheel structure and a second foot platform provided on the other lateral side of the wheel structure;
a fore-aft pitch sensor;
a lateral tilt sensor;
a motor that drives the wheel structure;
a control circuit coupled to the fore-aft pitch sensor, the lateral tilt sensor and the motor, that signals the motor to drive the wheel structure towards auto-balancing the device in response to data from the fore-aft pitch sensor;
wherein the control circuit is configured such that auto-balancing is not enabled until the lateral tilt angle from the central vertical plane is less than a given threshold enable angle.