Electric vehicle

Patent metadata

Field	Value
Publication number	US-11180213-B2
Application number	US-202016946610-A
Country	US
Kind code	B2
Filing date	Jun 29, 2020
Priority date	Jun 13, 2014
Publication date	Nov 23, 2021
Grant date	Nov 23, 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 bottom cover comprising a first bottom cover removably connected to the first platform and a second bottom cover removably connected to the second platform, 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 in strength from the first material;
a rotation mechanism disposed between the first platform and the second platform, wherein the rotation mechanism allows the first platform and the first bottom cover to rotate relative to the second platform and the second bottom cover;
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;
a first motor mounted within the first wheel and configured to drive the first wheel;
a second motor mounted within the second wheel and configured to drive the second wheel;
a plurality of sensors;
a power supply disposed between the bottom cover and one of the first platform or the second platform;
at least one controller electrically coupled to the first motor, the second motor, the plurality of sensors, and the power supply and configured to control the first motor and the second motor, respectively, to drive the first wheel and the second wheel, respectively, using power from the power supply and based on signals from the plurality of sensors; and
a shaft disposed between inward ends of the first platform and the second platform.

2. The electric balance vehicle according to claim 1 , wherein:
the plurality of sensors comprise a gyroscope, an acceleration sensor, and an inductive switch configured to sense whether a user stands on the electric balance vehicle; and
the at least one controller is configured to receive signals from the inductive switch, the acceleration sensor and the gyroscope and to control the first and second motors.

3. The electric balance vehicle according to claim 2 , wherein the inductive switch is an infrared photoelectric sensor.

4. The electric balance vehicle according to claim 1 , wherein the plurality of sensors, the power supply, and the at least one controller are disposed between the bottom cover and the first and second platforms.

5. The electric balance vehicle according to claim 1 , wherein the rotating mechanism further comprises a bearing and a shaft sleeve.

6. The electric balance vehicle according to claim 5 , wherein the bearing and shaft sleeve are disposed inside a cylindrical barrel.

7. The electric balance vehicle according to claim 1 wherein the shaft has a length which extends outward from the first platform or second platform and extends into a portion of the second platform or the first platform, respectively.

8. The electric balance vehicle according to claim 1 wherein the shaft has a length in the second platform larger than a length thereof in the first platform exposing a portion of the first platform outside the first platform.

9. An electric balance vehicle, comprising:
a first part comprising a first platform and a first bottom cover removably coupled to the first platform;
a second part comprising a second platform and a second bottom cover removably coupled to the second platform;
a rotation mechanism disposed between the first part and the second part and configured to allow the first part and the second part to rotate relative to each other;
a first wheel rotatably fixed at a first end of the first part and a second wheel rotatably fixed at a second end of the second part, wherein the first end and the second end are at opposites ends of the electric balance vehicle;
a first motor mounted within the first wheel and configured to drive the first wheel;
a second motor mounted within the second wheel and configured to drive the second wheel;
a plurality of sensors;
a power supply disposed therein;
at least one controller electrically coupled to the first motor, the plurality of sensors, and the power supply and configured to control the first motor to drive the first wheel using power from the power supply and based on one or more signals from the plurality of sensors; and
a shaft disposed between inward ends of the first part and the second part.

10. The electric balance vehicle according to claim 8 , wherein:
the plurality of sensors comprise a gyroscope, an acceleration sensor, and an inductive switch configured to sense whether a user stands on the electric balance vehicle; and
the at least one controller is configured to receive signals from the inductive switch, the acceleration sensor and the gyroscope and to control the first motor.

11. The electric balance vehicle according to claim 9 , wherein the rotating mechanism further comprises a bearing and a shaft sleeve.

12. The electric balance vehicle according to claim 11 , wherein the bearing and shaft sleeve are disposed inside a cylindrical barrel.

13. The electric balance vehicle according to claim 9 wherein the shaft has a length which extends outward from the first part or second part and extends into a portion of the second part or the first part, respectively.

14. The electric balance vehicle according to claim 9 wherein the shaft has a length in the second part larger than a length thereof in the first part exposing a portion of the first part outside the first part.

15. The electric balance vehicle according to claim 9 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 in strength from the first material.

16. The electric balance vehicle according to claim 15 wherein the first platform and the second platform comprise metal, and the first bottom cover and the second bottom cover comprise plastic.

17. The electric balance vehicle according to claim 16 wherein the first platform and the second platform comprise aluminum alloy.

18. An electric balance vehicle, comprising:
a first part comprising a first platform and a first bottom cover removably coupled to the first platform;
a second part comprising a second platform and a second bottom cover removably coupled to the second platform;
a rotation mechanism disposed between the first part and the second part and configured to allow the first part and the second part to rotate relative to each other, the rotation mechanism comprising a bearing and a shaft sleeve;
a first wheel rotatably fixed at a first end of the first part and a second wheel rotatably fixed at a second end of the second part, wherein the first end and the second end are at opposites ends of the electric balance vehicle;
a first motor mounted within the first wheel and configured to drive the first wheel;
a second motor mounted within the second wheel and configured to drive the second wheel;
a plurality of sensors;
a power supply disposed therein; and
a shaft disposed between inward ends of the first part and the second part.

19. The electric balance vehicle according to claim 16 , further comprising:
a controller electrically connected with the plurality of sensors, the power supply and the first motor, and wherein the controller is configured to control the first motor to drive the first wheel to rotate according to one or more signals from the plurality of sensors.

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