Smart Electrical Wheel for Electrical Bikes

• US 20140039745A1
• Filed: 09/16/2013
• Published: 02/06/2014
• Est. Priority Date: 02/06/2009
• Status: Abandoned Application

• Current Assignee: Belon Engineering, Inc.
• Original Assignee: Belon Engineering, Inc.
• Inventors: Belon, Juan Bautista, Chiang, Shu-Hsun, Faucher, Paul Daniel, Ke, Ya-Fang, Meyer, David, Swarup, Nitish, Tsai, Hsing-Han, Chang, Chia-Wen, Chen, Hsin-Chih Bautista
• Application Number:
  US14/028,248
• Publication Number:
  US 20140039745A1
• Time in Patent Office: Days
• US Class Current: 701/22
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2220/44 Wheel Hub motors, i.e. integrated in the wheel hub
• CPC Class Codes: B60L 2240/24 Steering angle
• CPC Class Codes: B60L 2240/461 Speed
• CPC Class Codes: B60L 50/20 using propulsion power generated by humans or animals
• CPC Class Codes: B62M 6/45 Control or actuating devices therefor
• CPC Class Codes: B62M 6/50 characterised by detectors or sensors, or arrangement thereof
• CPC Class Codes: B62M 6/60 power-driven at axle parts
• CPC Class Codes: B62M 6/90 Batteries
• CPC Class Codes: G01P 15/18 in two or more dimensions
• CPC Class Codes: G01P 3/22 transferred to the indicator by electric or magnetic means
• CPC Class Codes: G01P 3/486 delivered by photo-electric detectors

Abstract

A wheel assembly having a motor attached to a hub within the wheel assembly such that the motor powers the wheel assembly to rotate about an axle once the motor receives a predetermined amount of power. A battery system is configured to deliver power to said motor, the battery system is arranged to rotate with the wheel assembly. A sensor system within the wheel assembly provides data related to velocity and angle of orientation of the assembly. A control system within the wheel assembly receives data related to velocity and angle of orientation of the wheel assembly from the sensor system, with the control system having at least one output to from the battery system indicative of an amount of power that is delivered to the motor.

Claims

1. A wheel assembly comprising:

a motor attached to an axle within said wheel assembly;

a battery system within said wheel assembly that is configured to deliver power to said motor;

a sensor system within said wheel assembly that provides analog data related to velocity and angle of orientation of said wheel assembly; and

a control system within said wheel assembly that receives analog data related to velocity and angle of orientation for said wheel assembly from said sensor system, said control system having at least one output to said battery system indicative of an amount of power that is delivered to said motor.

2. The wheel assembly of claim 1 wherein said output of said control system controls said amount of power delivered to said motor without any user input.

3. The wheel assembly of claim 1 wherein said control system further comprises:

at least one analog to digital convertor that receives analog data related to velocity and angle of orientation for said wheel assembly from said sensor system and converts the analog data related to velocity and angle of orientation for said wheel assembly into digital data related to velocity and angle of orientation for said wheel assembly;

an algorithm that receives digital data related to velocity and angle of orientation for said wheel assembly, said algorithm comprising;

a first function for determining angle of orientation for said wheel assembly;

a second function for determining velocity of said wheel assembly;

a determination of output voltage applied to said motor via said output to said battery system, said determination performed according to;

OUTPUT VOLTAGE=ANGLE*C1+VELOCITY*C2+C3

wherein, ANGLE is the angle of orientation for said wheel assembly;

VELOCITY is the velocity of said wheel assembly;

C1 is gain applied to ANGLE, C2 is gain applied to VELOCITY and C3 is a voltage offset; and

a control device associated said battery system, said control device receiving said determination and applying said determination of OUTPUT VOLTAGE to said battery system.

4. The wheel assembly of claim 3 wherein said control system further comprises a Fast Fourier Transform (FFT) of digital data related to velocity and angle of orientation for said wheel assembly, said FFT of digital data related to velocity and angle of orientation for said wheel assembly being stored in a pair of Look Up Tables (LUTs) and the determination of OUTPUT VOLTAGE is made by subtracting the stored FFT related to velocity from the stored FFT related to the angle of orientation for said wheel assembly.

5. The wheel assembly of claim 4 wherein the stored FFT related to velocity and the stored FFT related to the angle of orientation for said wheel assembly selected in the determination of OUTPUT VOLTAGE is made by sensor data.

6. The wheel assembly of claim 5 wherein said first function for determining angle of orientation for said wheel assembly and said second function for determining velocity of said wheel assembly are performed in parallel.

7. The wheel assembly of claim 1 wherein said sensor system further comprises a rotary an encoder to provide analog data related to velocity.

8. The wheel assembly of claim 1 wherein said sensor system further comprises an accelerometer to provides analog data related angle of orientation of said wheel assembly.

9. The wheel assembly of claim 1 wherein said sensor system further comprises a least one strain gage.

10. The wheel assembly of claim 9 wherein said strain gage provide an initial determination of orientation of said wheel assembly.

16. The wheel assembly of claim 5 wherein said first function for determining angle of orientation for said wheel assembly is performed every revolution of said wheel assembly and said second function for determining velocity of said wheel assembly is performed in parallel with said first function.

17. The wheel assembly of claim 16 wherein said sensor system further comprises a rotary an encoder to provide analog data related to velocity that interrupting a system processor to update velocity data.

18. The wheel assembly of claim 17 wherein said sensor system further comprises an accelerometer to provides analog data related angle of orientation of said wheel assembly.

19. The wheel assembly of claim 18 wherein said sensor system further comprises a least one strain gage.

20. The wheel assembly of claim 19 wherein said strain gage provide an initial determination of orientation of said wheel assembly.

11. A wheel assembly comprising:

a motor attached to an axle within said wheel assembly such that said motor powers said wheel assembly to rotate about said axle once said motor receives a predetermined amount of power;

a battery system within said wheel assembly that is configured to deliver power to said motor, said battery system arranged to rotate with said wheel assembly;

a sensor system within said wheel assembly that provides analog data related to velocity and angle of orientation of said wheel assembly; and

a control system within said wheel assembly that receives analog data related to velocity and angle of orientation for said wheel assembly from said sensor system, said control system having at least one output to said battery system indicative of an amount of power that is delivered to said motor.

12. The wheel assembly of claim 11 wherein said output of said control system controls said amount of power delivered from said battery system to said motor in response to inputs from said sensor system.

13. The wheel assembly of claim 12 wherein said control system further comprises:

at least one analog to digital convertor that receives analog data related to velocity and angle of orientation for said wheel assembly from said sensor system and converts the analog data related to velocity and angle of orientation for said wheel assembly into digital data related to velocity and angle of orientation for said wheel assembly;

an algorithm that receives digital data related to velocity and angle of orientation for said wheel assembly, said algorithm comprising;

a first function for determining angle of orientation for said wheel assembly;

a second function for determining velocity of said wheel assembly;

a determination of output voltage applied to said motor via said output to said battery system, said determination performed according to;

OUTPUT VOLTAGE=ANGLE*C1+VELOCITY*C2+C3

wherein, ANGLE is the angle of orientation for said wheel assembly;

VELOCITY is the velocity of said wheel assembly;

C1 is gain applied to ANGLE, C2 is gain applied to VELOCITY and C3 is a voltage offset; and

a control device associated said battery system, said control device receiving said determination and applying said determination of OUTPUT VOLTAGE to said battery system.

14. The wheel assembly of claim 13 wherein said control system further comprises a Fast Fourier Transform (FFT) of digital data related to velocity and angle of orientation for said wheel assembly, said FFT of digital data related to velocity and angle of orientation for said wheel assembly being stored in a pair of Look Up Tables (LUTs) and the determination of OUTPUT VOLTAGE is made by subtracting the stored FFT related to velocity from the stored FFT related to the angle of orientation for said wheel assembly.

15. The wheel assembly of claim 14 wherein the stored FFT related to velocity and the stored FFT related to the angle of orientation for said wheel assembly selected in the determination of OUTPUT VOLTAGE is made by sensor data.