Electric vehicle

Patent metadata

Field	Value
Publication number	US-10988200-B2
Application number	US-201916695013-A
Country	US
Kind code	B2
Filing date	Nov 25, 2019
Priority date	Jun 13, 2014
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

An electric self-balancing vehicle including a top cover, a bottom cover, an inner cover, a rotating mechanism, two wheels, two hub motors, a plurality of sensors, a power supply, and a controller is described herein. The top cover includes a first top cover and a second top cover disposed symmetrically and rotatable relative to each other. The bottom cover is fixed to the top cover and includes a first bottom cover and a second bottom cover disposed symmetrically and rotatable relative to each other. The inner cover is fixed between the top cover and the bottom cover and includes a first inner cover and a second inner cover disposed symmetrically and rotatable relative to each other. The rotating mechanism is fixed between the first inner cover and the second inner cover. The two wheels are rotatably fixed at two sides of the inner cover, respectively. The two hub motors are fixed in the two wheels, respectively. The plurality of sensors is disposed between the bottom cover and the inner cover, respectively. The power supply is fixed between the first bottom cover and the first inner cover. The controller is fixed between the second bottom cover and the second inner cover, the controller is electrically connected with the plurality of sensors, the power supply, and the hub motors, and the controller controls the hub motors to drive the corresponding wheels to rotate according to sensing signals transmitted by the sensors.

First claim

We claim:

1. An electric balance vehicle, comprising:
a first platform;
a second platform;
a rotation mechanism disposed between the first platform and the second platform, wherein the rotation mechanism allows the first platform and the second platform to rotate relative to each other;
a first wheel rotatably fixed at a first end of the first platform and a second wheel rotatably fixed at a second end of the second platform, wherein the first end and the second end are at opposites ends of the electric balance vehicle;
at least one motor configured to drive the first wheel and the second wheel;
a plurality of sensors;
a power supply;
at least one controller electrically connected with the plurality of sensors, the power supply, the at least one motor;
wherein the at least one controller is configured to control the at least one motor to drive the first wheel and the second wheel using power from the power supply and based on signals from the plurality of sensors; and
a limiting mechanism configured to limit an overlarge relative rotation angle between the first platform and the second platform, wherein the limiting mechanism is disposed between the first platform and the second platform.

2. The electric balance vehicle according to claim 1 , further comprising a bottom cover, wherein the bottom cover includes a first bottom cover removably connected to the first platform, and wherein the bottom cover includes a second bottom cover removably connected to the second platform.

3. The electric balance vehicle of claim 2 , wherein the first platform and the second platform are made of a first material, and wherein the first bottom cover and the second bottom cover are made of a second material that differs from the first material.

4. The electric balance vehicle of claim 2 , wherein the power supply is disposed between the bottom cover and one of the first platform or the second platform.

5. The electric balance vehicle of claim 2 , wherein the at least one controller is disposed between the bottom cover and one of the first platform or the second platform.

6. The electric balance vehicle of claim 2 , wherein the at least one controller includes a first controller and a second controller, wherein the first controller is located between the first platform and the first bottom cover, and wherein the second controller is located between the second platform and the second bottom cover.

7. The electric balance vehicle of claim 1 , wherein the plurality of sensors further comprises at least one of a gyroscope, an accelerometer, and an inductive switch.

8. The electric balance vehicle of claim 7 , wherein the inductive switch is an infrared photoelectric sensor.

9. The electric balance vehicle of claim 7 , wherein the inductive switch is configured to sense whether a user is standing on the electric balance vehicle.

10. The electric balance vehicle of claim 1 , further comprising:
a first pedal disposed on the first platform and a second pedal disposed of on the second platform.

11. The electric balance vehicle of claim 1 , wherein the first platform includes a first inner end, wherein the second platform includes a second inner end, and wherein the rotating mechanism comprises shaft sleeve installed into at least one of the first inner end or the second inner end.

12. The electric balance vehicle of claim 11 , wherein at least one of the first inner end or the second inner end comprises a cylindrical barrel, wherein the rotating mechanism comprises a bearing installed into the cylindrical barrel, and wherein the shaft sleeve is installed in the bearing.

13. The electric balance vehicle of claim 12 , wherein the first inner end comprises a first cylindrical barrel, wherein the second inner end comprises a second cylindrical barrel, wherein the rotating mechanism comprises a first bearing in the first cylindrical barrel and a second bearing in the second cylindrical barrel, and wherein the shaft sleeve is installed in the first cylindrical barrel and the second cylindrical barrel.

14. The electric balance vehicle of claim 11 , wherein the limiting mechanism is disposed between the first inner end and the second inner end.

15. The electric balance vehicle of claim 1 , wherein the at least one motor is mounted within one side of the electric balance vehicle.

16. The electric balance vehicle of claim 1 , wherein the at least one motor includes a first motor and a second motor, wherein the first motor is mounted within the first wheel, and wherein the second motor is mounted within the second wheel.

17. The electric balance vehicle according to claim 1 , further comprising a blocking element, wherein the plurality of sensors comprises an inductive switch, and wherein the blocking element is configured to block an inductive area of the inductive switch to trigger the inductive switch to send signals to control the at least one motor.

18. The electric balance vehicle of claim 1 , wherein the rotation mechanism further comprises a shaft sleeve extending through a first mounting device connected at an inner end of the first platform and a second mounting device connected at an inner end of the second platform.

19. The electric balance vehicle of claim 18 , wherein the first mounting device comprises a first bearing in a first cylindrical barrel, wherein the second mounting device comprises a second bearing in a second cylindrical barrel, and wherein the shaft sleeve is installed inside the first bearing and the second bearing.

20. The electric balance vehicle of claim 18 , wherein the rotation mechanism further comprises a first snap spring securing a first end of the shaft sleeve to the first mounting device and a second snap spring securing a second end of the shaft sleeve to the second mounting device.

Assignees

• Hangzhou Chic Intelligent Tech Co Ltd

Inventors

• Ying Jiawei
• Cao Shaojun

Classifications

• B62K11/007 Primary

  Automatic balancing machines with single main ground engaging wheel or coaxial wheels supporting a rider · CPC title

• A63C17/08

  single-wheel type {with single axis} · CPC title

• A63C17/00

  Roller skates; Skate-boards · CPC title

• B62J45/40

  Sensor arrangements (sensors for control of electrically assisted cycles B62M6/50); Mounting thereof · CPC title

• B62J45/414

  Acceleration sensors · CPC title