Skateboard and control method thereof

Patent metadata

Field	Value
Publication number	US-11358047-B2
Application number	US-201916419843-A
Country	US
Kind code	B2
Filing date	May 22, 2019
Priority date	Jun 5, 2018
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

The disclosure relates to a skateboard and control method thereof. A skateboard deck is fixed on an axle of the skateboard, and a first sensor group and a second sensor group are sequentially arranged on the skateboard deck in a width direction. The method includes acquiring a first pressure value of the first sensor group and a second pressure value of the second sensor group; controlling the skateboard to turn to a first direction when the first pressure value is greater than the second pressure value and a difference value between the first pressure value and the second pressure value is greater than a first threshold, and controlling the skateboard to turn to a second direction when the second pressure value is greater than the first pressure value and a difference value between the second pressure value and the first pressure value is greater than a second threshold.

First claim

What is claimed is:

1. A skateboard control method, applied to a skateboard, wherein a skateboard deck of the skateboard is fixed on an axle of the skateboard, and a first sensor group and a second sensor group are sequentially arranged on the skateboard deck in a width direction, the method comprising:
acquiring a first pressure value of the first sensor group and a second pressure value of the second sensor group;
controlling the skateboard to turn to a first direction when the first pressure value is greater than the second pressure value and a difference value between the first pressure value and the second pressure value is greater than a first threshold, wherein the first direction is a direction of the first sensor group relative to the second sensor group; and
controlling the skateboard to turn to a second direction when the second pressure value is greater than the first pressure value and a difference value between the second pressure value and the first pressure value is greater than a second threshold, wherein the second direction is a direction of the second sensor group relative to the first sensor group,
wherein controlling the skateboard to turn to the first direction comprises: determining a first turning angle corresponding to the difference value between the first pressure value and the second pressure value, and controlling the skateboard to turn to the first direction based on the first turning angle; and
wherein controlling the skateboard to turn to the second direction comprises: determining a second turning angle corresponding to the difference value between the second pressure value and the first pressure value, and controlling the skateboard to turn to the second direction based on the second turning angle.

2. The method according to claim 1 , wherein a third sensor group and a fourth sensor group are sequentially arranged on the skateboard deck in a length direction, the third sensor group is arranged at a front half part of the skateboard deck, the fourth sensor group is arranged at a rear half part of the skateboard deck, the method further comprising:
acquiring a third pressure value of the third sensor group and a fourth pressure value of the fourth sensor group;
controlling the skateboard to move forward when the third pressure value is greater than the fourth pressure value and a difference value between the third pressure value and the fourth pressure value is greater than a third threshold; and
controlling the skateboard to brake when the fourth pressure value is greater than the third pressure value and a difference value between the fourth pressure value and the third pressure value is greater than a fourth threshold.

3. The method according to claim 2 , wherein the first, second, third, and fourth sensor groups cover a preset standing area of the skateboard deck, the first sensor group comprises a first sensor and a second sensor, the second sensor group comprises a third sensor and a fourth sensor, the third sensor group comprises the first sensor and the third sensor, and the fourth sensor group comprises the second sensor and the fourth sensor, and
wherein the first pressure value is a sum of pressure values of the first sensor and the second sensor, the second pressure value is a sum of pressure values of the third sensor and the fourth sensor, the third pressure value is a sum of pressure values of the first sensor and the third sensor, and the fourth pressure value is a sum of pressure values of the second sensor and the fourth sensor.

4. The method according to claim 2 , wherein controlling the skateboard to move forward comprises:
determining a speed gear corresponding to the difference value between the third pressure value and the fourth pressure value; and
controlling the skateboard to move forward at the speed gear, wherein a speed indicated by the corresponding speed gear is directly proportional to the difference value between the third pressure value and the fourth pressure value.

5. The method according to claim 2 , wherein controlling the skateboard to brake comprises:
determining a braking torque corresponding to the difference value between the fourth pressure value and the third pressure value; and
controlling the skateboard to brake based on the braking torque, wherein the corresponding braking torque is directly proportional to the difference value between the fourth pressure value and the third pressure value.

6. The method according to claim 1 , wherein controlling the skateboard to turn to the first direction further comprises: determining a first turning speed corresponding to the difference value between the first pressure value and the second pressure value, and controlling the skateboard to turn to the first direction based on the first turning speed; and
wherein controlling the skateboard to turn to the second direction comprises: determining a second turning speed corresponding to the difference value between the second pressure value and the first pressure value, and controlling the skateboard to turn to the second direction based on the second turning speed, and controlling the skateboard to turn to the second direction based on the second turning speed.

7. The method according to claim 1 , further comprising:
allowing the skateboard to slide when the pressure values of the first sensor group and the second sensor group are both greater than a preset starting value;
prohibiting the skateboard from sliding when the pressure values of the first sensor group and the pressure value of the second sensor group are both less than the preset starting value; and
prohibiting the skateboard from sliding when one of the pressure value of the first sensor group and the pressure value of the second sensor group is less than the preset starting value.

8. The method according to claim 1 , wherein the skateboard further comprises an electric motor that is configured to drive the skateboard to carry out an operation that is one of moving straight and turning, and wherein the electric motor is arranged on the skateboard on a shaft portion of the axle.

9. A skateboard, comprising:
an axle;
a skateboard deck fixed on the axle; and
a first sensor group and a second sensor group sequentially arranged on the skateboard deck in a width direction,
wherein the first sensor group is configured to acquire a first pressure value, and the second sensor group is configured to acquire a second pressure value,
wherein the skateboard is configured to turn to a first direction when the first pressure value is greater than the second pressure value and a difference value between the first pressure value and the second pressure value is greater than a first threshold, wherein the first direction is a direction of the first sensor group relative to the second sensor group,
wherein the skateboard is configured to turn to a second direction when the second pressure value is greater than the first pressure value and a difference value between the second pressure value and the first pressure value is greater than a second threshold, wherein the second direction is a direction of the second sensor group relative to the first sensor group,
wherein the skateboard is further configured to determine a first turning angle corresponding to the difference value between the first pressure value and the second pressure value, and control the skateboard to turn to the first direction based on the first turning angle, and
wherein the skateboard is further configured to determine a second turning angle corresponding to the difference value between the second pressure value and the first pressure value, and control the skateboard to turn to the second direction based on the second turning angle.

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Cheng Liang
• Xia Yongfeng

Classifications

• A63C17/015 Primary

  with wheels arranged in two pairs · CPC title

• A63C17/011 Primary

  with steering mechanisms · CPC title

• A63C2203/12

  Electrically powered or heated · CPC title

• A63C17/14

  with brakes, e.g. toe stoppers, freewheel roller clutches · CPC title

• A63C2203/24

  Processing or storing data, e.g. with electronic chip · CPC title