MULTI-PHASE MULTI-POLE ELECTRIC MACHINE

• US 20130257327A1
• Filed: 03/29/2012
• Published: 10/03/2013
• Est. Priority Date: 03/29/2012
• Status: Active Grant

• Current Assignee: Falco eMotors, Inc.
• Original Assignee: Rakesh K. Dhawan
• Inventors: Dhawan, Rakesh K.
• Granted Patent: US 9,595,859 B2
• Time in Patent Office: Days
• US Class Current: 318/400.15
• CPC Class Codes: A61G 5/04 motor-driven A61G5/06 takes precedence; motor-operated rests A61G5/12; for vehicles with handlebars, equipped with three or more wheels B62K5/003, B62K5/023
• CPC Class Codes: A61G 5/1054 Large wheels, e.g. higher than the seat portion
• CPC Class Codes: B60L 15/2036 Electric differentials, e.g. for supporting steering vehicles
• CPC Class Codes: B60L 15/2054 by controlling transmissions or clutches
• CPC Class Codes: B60L 2200/12 Bikes
• CPC Class Codes: B60L 2200/34 Wheel chairs
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2220/44 Wheel Hub motors, i.e. integrated in the wheel hub
• CPC Class Codes: B60L 2220/58 with more than three phases
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 2250/24 by lever actuation
• CPC Class Codes: B60L 2250/26 by pedal actuation
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 50/16 with provision for separate direct mechanical propulsion
• CPC Class Codes: B60L 50/20 using propulsion power generated by humans or animals
• CPC Class Codes: B60L 50/51 : characterised by AC-motors
• CPC Class Codes: H02K 11/24 : Devices for sensing torque, or actuated thereby H02K11/27 takes precedence
• CPC Class Codes: H02K 11/33 : Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 21/22 : with magnets rotating around the armatures, e.g. flywheel magnetos
• CPC Class Codes: H02K 7/14 : Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: H02P 25/22 : Multiple windings; Windings for more than three phases
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility

Abstract

A multi-phase multi-pole electric machine attached to a vehicle. The multi-phase multi-pole electric machine includes rotor, stator with five phase windings, machine controller, and torque sensors. The machine controller controls the flow of current. The torque sensors senses the torque exerted by the vehicle and transmits the information to the machine controller. The machine controller provides four degree of control through injection of five phase currents and thus providing higher torque.

Claims

1. A multi-phase multi-pole electric machine attached to a vehicle, said multi-phase multi-pole machine comprising:

a rotor comprising;

one or more covers adjacently attached to the wheel of said vehicle;

a connecting pipe disposed between said one or more covers, said connecting pipe mounted around the wheel of said vehicle; and

plurality of rotor magnets alternatively placed inside said connecting pipe;

a stator attached to said rotor.

2. The multi-phase multi-pole electric machine according to claim 1 further comprises a machine controller connected to said stator to control the flow of current.

3. The multi-phase multi-pole electric machine according to claim 1 further comprises a torque sensor attached to said axle, said torque sensor to sense the torque exerted and transmit the information to said machine controller.

4. The multi-phase multi-pole electric machine according to claim 1 further comprises a removable disc adaptor attached to brake mechanism of said vehicle.

5. The multi-phase multi-pole electric machine according to claim 1 further comprises a removable gear adaptor, said gear adaptor is attached to gear mechanism.

6. The multi-phase multi-pole electric machine in claim 1 wherein said machine controller further comprises:

a micro controller to generate a signal;

an inverter receives said signal from said microcontroller, said inverter manipulates said signal to control electrical current flow to said stator;

a temperature sensor to measure the temperature of said machine controller and said five phase winding;

a communication interface to transmit input commands to said micro controller.

7. The multi-phase multi-pole electric machine in claim 1 further comprises one or more rotor position sensors to sense the position of said rotor.

8. The multi-phase multi-pole electric machine in claim 1 further comprises one or more semi conductor switches connected to said machine controller and said five phase windings.

9. A multi-phase multi-pole electric machine comprising:

a stator and a rotor, wherein said rotor comprising of plurality of rotor magnets separated from said stator by an air gap, and said stator comprising a plurality of stator poles (ns) separated by stator slots; and

a five phase winding arranged in said stator slots, wherein at least one of said five phase winding arranged in a series of k+x wherein k is a positive integer and x belongs to the set {0,1,7,8,9,16,17,24} said series is (k+0)-(k+1)-(k+7)-(k+8)-(k+9)-(k+8)-(k+16)-(k+17)-(k+0)-(k+24), further when (k+x) exceeds ns, then (k=k−

ns).

10. The multi-phase multi-pole electric machine according to claim 9 wherein said rotor further comprises:

one or more covers adjacently attached to the wheel of said vehicle; and

a connecting pipe disposed between said one or more covers, said connecting pipe mounted around the wheel of said vehicle.

11. The multi-phase multi-pole electric machine according to claim 9 further comprises a machine controller to control electrical current flow to said stator.

12. The machine controller according to claim 11 further comprises:

a micro controller to generate a signal;

an inverter receives said signal from said microcontroller, said inverter manipulates said signal to control electrical current flow to said stator;

a temperature sensor to measure the temperature of said machine controller and said five phase winding; and

a communication interface to transmit input commands to said micro controller.

13. The multi-phase multi-pole electric machine according to claim 9 further comprises a removable disc adaptor attached to brake mechanism of a vehicle.

14. The multi-phase multi-pole electric machine according to claim 9 further comprises a removable gear adaptor attached to gear mechanism of a vehicle.

15. The multi-phase multi-pole electric machine according to claim 9 further comprises a torque sensor to sense the torque exerted.

16. The multi-phase multi-pole electric machine according to claim 9 further comprises a rotor sensor to sense the position of the rotor.

17. The multi-phase multi-pole electric machine according to claim 9 further comprises one or more semi conductor switches connected to said machine controller and said five phase windings.

18. A multi-phase multi-pole electric machine attached to a vehicle said multi-phase multi-pole machine comprising:

a rotor comprising;

one or more covers adjacently attached to the wheel of said vehicle;

a connecting pipe disposed between said one or more covers, said connecting pipe mounted around the wheel of said vehicle; and

plurality of rotor magnets alternatively placed inside said connecting pipe;

a stator attached to the said rotor, said stator comprising;

plurality of stator poles separated by stator slots;

five phase winding wound around said stator poles;

stator plates attached to said plurality of stator poles; and

an axle passes through the central aperture of said stator plates;

a machine controller connected to said stator to control the flow of current; and

a torque sensor attached to said axle, said torque sensor to sense the torque exerted and transmits the information to said machine controller.

19. The multi-phase multi-pole electric machine in claim 18 wherein said machine controller further comprises:

a micro controller to generate a signal ;

an inverter receives said signal from said microcontroller, said inverter manipulates said signal to control electrical current flow to said stator;

a temperature sensor to measure the temperature of said machine controller and said five phase winding; and

a communication interface to transmit input commands to said micro controller.

20. The multi-phase multi-pole electric machine according to claim 18 further comprises one or more semi conductor switches connected to said machine controller and said five phase windings.