Two-wheel self-balancing vehicle with independently movable foot placement sections

• US RE46,964 E1
• Filed: 05/26/2016
• Issued: 07/24/2018
• Est. Priority Date: 02/12/2012
• Status: Active Grant

• Current Assignee: Shane Chen
• Original Assignee: Solowheel, Inc.
• Inventors: Chen, Shane
• Primary Examiner(s): Rimell, Sam
• Application Number:
  US15/165,654
• Time in Patent Office: 789 Days
• CPC Class Codes: B60L 15/20 for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• CPC Class Codes: B60L 2200/16 Single-axle vehicles
• CPC Class Codes: B60L 2260/34 Stabilising upright position of vehicles, e.g. of single axle vehicles
• CPC Class Codes: B62K 11/007 Automatic balancing machines with single main ground engaging wheel or coaxial wheels supporting a rider
• CPC Class Codes: Y02T 10/645 Control strategies for dc machines
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 10/7275 Desired performance achievement

Abstract

A two-wheel, self-balancing personal vehicle having independently movable foot placement sections. The foot placement sections have an associated wheel, sensor and motor and are independently self-balancing which gives the user independent control over the movement of each platform section by the magnitude and direction of tilt a user induces in a given platform section. Various embodiments are disclosed including those with a continuous housing, discrete platform sections and/or tapering platform sections.

Claims

1. A two-wheel, self-balancing vehicle device, comprising:

a first foot placement section and a second foot placement section that are coupled to one another and are independently movable with respect to one another rotatable along an axis passing through a first wheel and a second wheel;

asaid first wheel associated with the first foot placement section and asaid second wheel associated with the second foot placement section, the first and second wheels being spaced apart and substantially parallel to one another;

a first position sensor and a first drive motor configured to drive the first wheel, a second position sensor and a second drive motor configured to drive the second wheel; and

control logic that drives the first wheel toward self-balancing the first foot placement section in response to position data from the first sensor and that drives the second wheel toward self-balancing the second foot placement section in response to position data from the second foot placement section.

2. The device of claim 1, wherein the first foot placement section and the second foot placement section are rotatably coupled to one another.

3. The device of claim 1, wherein the first foot placement section and the second foot placement section are positioned substantially linearly between the first and second wheel.

4. The device of claim 1, wherein said first and second foot placement sections are mounted to a frame that is sufficiently flexible that the first and second foot placement platforms can move independently with respect to one another under the weight of a user.

5. The device of claim 1, further comprising:

a first housing section on which the first foot placement section is provided, the first housing section housing the first sensor and first drive motor; and

a second housing section on which the second foot placement section is provided, the second housing section housing the second sensor and second drive motor.

6. The device of claim 5, wherein the control logic include a first control logic controlling the first drive motor located in the first housing section and a second control logic controlling the second drive motor located in the second housing section.

7. The device of claim 5, wherein the first drive wheel extends from the first housing section on an end substantially opposite where the first housing section is coupled to the second housing section, and the second drive wheel extends from the second housing section on an end substantially opposite where the second housing section is coupled to the first housing section.

8. The device of claim 1, further comprising a platform sensor provided at at least one of the first and second foot placement sections that detects when a user is standing on that foot placement section.

9. The device of claim 1, further comprising a bias mechanism for returning the two independently movable first and second foot placement sections toward alignment in the absence of a force by a user displacing the two foot placement sections from alignment.

10. A two-wheel self-balancing vehicle device, comprising:

a first foot placement section and a second foot placement section that are coupled to one another and are independently rotatable along an axis passing through a first wheel and a second wheel;

said first wheel associated with the first foot placement section and said second wheel associated with the second foot placement section, the first and second wheels being spaced apart and substantially parallel to one another;

a first position sensor and a first drive motor configured to drive the first wheel a second position sensor and a second drive motor configured to drive the second wheel; and

control logic that drives the first wheel toward self-balancing the first foot placement section in response to position data from the first sensor and that drives the second wheel toward self-balancing the second foot placement section in response to position data from the second sensor.

11. The device of claim 10, wherein the first foot placement section and the second foot placement section are positioned substantially linearly between the first and second wheel.

12. The device of claim 10, wherein said first and second foot placement sections are mounted to a frame that is sufficiently flexible that the first and second foot placement platforms can move independently with respect to one another under the weight of a user.

13. The device of claim 10, further comprising:

a first housing section on which the first foot placement section is provided, the first housing section housing the first sensor and first drive motor; and

a second housing section on which the second foot placement section is provided, the second housing section housing the second sensor and second drive motor.

14. The device of claim 13, wherein the control logic include a first control logic controlling the first drive motor located in the first housing section and a second control logic controlling the second drive motor located in the second housing section.

15. The device of claim 13, wherein the first drive wheel extends from the first housing section on an end substantially opposite where the first housing section is coupled to the second housing section, and the second drive wheel extends from the second housing section on an end substantially opposite where the second housing section is coupled to the first housing section.

16. The device of claim 10, further comprising a platform sensor provided at at least one of the first and second foot placement sections that detects when a user is standing on that foot placement section.

17. The device of claim 10, further comprising a bias mechanism for returning the two independently movable first and second foot placement sections toward alignment in the absence of a force by a user displacing the two foot placement sections from alignment.