Power management method for an electrically-assisted vehicle

• US 9,334,013 B2
• Filed: 04/30/2012
• Issued: 05/10/2016
• Est. Priority Date: 06/14/2011
• Status: Expired due to Fees

• Current Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Original Assignee: Commissariat a L'Energie Atomique (French Alternative Energies and Atomic Energy Commission)
• Inventors: Gros, Jean-Philippe, Barla, Charlie, Joalland, Sylvain, Jobert, Timothee, Riche, Stephanie
• Primary Examiner(s): Beaulieu, Yonel
• Application Number:
  US14/126,407
• Publication Number:
  US 20140229046A1
• Time in Patent Office: 1,471 Days
• Field of Search: 701/22, 701/36, 701/400, 1802061-2063, 180/205.4, 180/65.5, 180/65.31, 180220- 1, 180218-220
• US Class Current: 1/1
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2260/54 Energy consumption estimation
• CPC Class Codes: B60L 50/20 using propulsion power generated by humans or animals
• CPC Class Codes: B62J 43/13 on rider-propelled cycles with additional electric propulsion
• CPC Class Codes: B62J 45/20 Cycle computers as cycle accessories
• CPC Class Codes: B62J 50/22 electronic, e.g. displays
• CPC Class Codes: B62M 6/45 Control or actuating devices therefor
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

The invention relates to a power management method for an electrically assisted vehicle, comprising the following steps: a) determining the total amount of power required for a journey; and b) assigning an amount of electric power to the journey and deducing therefrom the amount of human power required for the journey, or assigning an amount of human power to the journey and deducing therefrom the amount of electric power required for the journey.

Claims

1. A method of power management in an electrically-assisted vehicle, this method being implemented by an on-board computer provided in the vehicle, comprising the steps of:

a) dividing into elementary sections an itinerary between a starting point and an arrival point; and

b) for each elementary section, determining, taking into account prerecorded topographic data, the total amount of power necessary to travel the section, assigning an amount of electric power to the section, and deducing therefrom the amount of human power necessary to travel the section.

2. The method of claim 1, wherein each elementary section, at step b), is assigned an amount of electric power selected so that the total amount of electric power available in a battery of the vehicle remains greater than a threshold between the starting point and the arrival point.

3. The method of claim 1, further comprising the feedback control of an electric power-assist motor of the vehicle to automatically control, for each elementary section, the assistance level according to said amount of electric power assigned at step b).

4. The method of claim 1, further comprising a step of measuring the average power delivered by the user.

5. The method of claim 1, further comprising a step of geolocation of the vehicle.

6. The method of claim 1, further comprising a step of measuring the total amount of power available in a battery of the vehicle.

8. The method of claim 2, further comprising the feedback control of an electric power-assist motor of the vehicle to automatically control, for each elementary section, the assistance level according to said amount of electric power assigned at step b).

9. The method of claim 2, further comprising a step of measuring the average power delivered by the user.

10. The method of claim 3, further comprising a step of measuring the average power delivered by the user.

11. The method of claim 2, further comprising a step of geolocation of the vehicle.

12. The method of claim 3, further comprising a step of geolocation of the vehicle.

13. The method of claim 4, further comprising a step of geolocation of the vehicle.

14. The method of claim 2, further comprising a step of measuring the total amount of power available in a battery of the vehicle.

15. The method of claim 3, further comprising a step of measuring the total amount of power available in a battery of the vehicle.

16. The method of claim 4, further comprising a step of measuring the total amount of power available in a battery of the vehicle.

17. The method of claim 5, further comprising a step of measuring the total amount of power available in a battery of the vehicle.

7. A power management system in an electrically-assisted cycle, comprising an on-board computer capable of:

dividing into elementary sections an itinerary between a starting point and an arrival point;

for each elementary section, determining, taking into account prerecorded topographic data, the total amount of power necessary to travel the section, assigning an amount of electric power to the section, and deducing therefrom the amount of human power necessary to travel the section.