US 12,227,257 B2
Electric balance vehicles
Weibin Chen, Cerritos, CA (US); Zhiwei Huang, Cerritos, CA (US); Yufeng Wang, Cerritos, CA (US); Hnolai Guo, Cerritos, CA (US); and Xiaoting Xia, Cerritos, CA (US)
Assigned to Razor USA LLC, Cerritos, CA (US)
Filed by RAZOR USA LLC, Cerritos, CA (US)
Filed on Mar. 30, 2018, as Appl. No. 15/941,505.
Claims priority of provisional application 62/552,963, filed on Aug. 31, 2017.
Claims priority of application No. 201720344437.6 (CN), filed on Apr. 1, 2017; application No. 201720344816.5 (CN), filed on Apr. 1, 2017; application No. 201720344852.1 (CN), filed on Apr. 1, 2017; and application No. 201730105822.0 (CN), filed on Apr. 1, 2017.
Prior Publication US 2019/0077479 A1, Mar. 14, 2019
Int. Cl. B62K 11/00 (2006.01)
CPC B62K 11/007 (2016.11) [B62K 2204/00 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An electric balance vehicle, comprising:
a first pedal housing and a second pedal housing, each of the first and second pedal housings configured to support a respective foot of a user, the second pedal housing being rotatable relative to the first pedal housing;
a first wheel assembly comprising a first wheel, a first motor positioned within the first wheel, and a first axle extending from the first wheel;
a second wheel assembly comprising a second wheel, a second motor positioned within the second wheel, and a second axle extending from the second wheel;
a support axle comprising:
a central portion that is sleeved with a bushing, wherein two opposite ends of the bushing extend into the first pedal housing and the second pedal housing, respectively, the bushing comprising at least one cable passing channel between the first and second pedal housing;
a first end extending through an inner cavity of the first pedal housing to an outer end of the first pedal housing, the first axle of the first wheel assembly fixedly coupled with the first end of the support axle, the first wheel assembly positioned adjacent the outer end of the first pedal housing; and
a second end rotatably coupled with a frame, the frame fixedly coupled with the second axle of the second wheel assembly, the second end of the support axle extending into an inner cavity of the second pedal housing, the frame configured to rotate with respect to the second end of the support axle and located within the inner cavity of the second pedal housing, the second wheel assembly positioned adjacent an outer end of the second pedal housing;
a first controller configured to control the first wheel assembly and a second controller configured to control the second wheel assembly;
a battery configured to supply power to the first and second controllers and the first and second motors; and
a first sensor provided in the first pedal housing and a second sensor provided in the second pedal housing, the first sensor configured to sense rotation of the first pedal housing and generate a first sensing signal and the second sensor configured to sense rotation of the second pedal housing and generate a second sensing signal, each of the first and second sensors comprising an accelerometer;
wherein the first controller operates the first wheel assembly according to the first sensing signal and the second controller operates the second wheel assembly according to the second sensing signal.