Flywheel system for use with electric wheels in a hybrid vehicle

• US 7,654,355 B1
• Filed: 12/14/2006
• Issued: 02/02/2010
• Est. Priority Date: 01/17/2006
• Status: Active Grant

• Current Assignee: Kevin R. Williams
• Original Assignee: Kevin R. Williams
• Inventors: Williams, Kevin R.
• Primary Examiner(s): Morris; Lesley
• Assistant Examiner(s): MEYER, JACOB B
• Application Number:
  US11/611,015
• Time in Patent Office: 1,146 Days
• Field of Search: 180/165, 180/65.1, 180/65.21, 180/65.22, 180/65.265, 180/65.31, 180/65.51, 303/152
• US Class Current: 180/165
• CPC Class Codes: B60K 5/08 comprising more than one engine
• CPC Class Codes: B60K 6/105 the accumulator being a flywheel
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/30 characterised by chargeable mechanical accumulators, e.g. flywheels
• CPC Class Codes: B60K 6/40 characterised by the assembly or relative disposition of components
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60L 15/2009 for braking
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/12 Induction machines
• CPC Class Codes: B60L 2220/46 Wheel motors, i.e. motor connected to only one wheel
• 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 2240/441 Speed
• CPC Class Codes: B60L 2240/443 Torque
• CPC Class Codes: B60L 2260/26 Transition between different drive modes
• CPC Class Codes: B60L 2260/28 Four wheel or all wheel drive
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 50/30 : using propulsion power stored mechanically, e.g. in fly-wheels
• CPC Class Codes: B60L 50/61 : by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
• CPC Class Codes: B60L 7/14 : for vehicles propelled by ac motors
• CPC Class Codes: H02K 7/025 : for power storage
• CPC Class Codes: Y02E 60/16 : Mechanical energy storage, e.g. flywheels or pressurised fluids
• CPC Class Codes: Y02T 10/62 : Hybrid vehicles
• 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 hybrid vehicle system having first and second internal combustion engines, first and second flywheels respectively coupled to the first and second internal combustion engines, a plurality of motorized wheels electrically interconnected to first and second flywheels, and a controller connected to the internal combustion engines and to the flywheels and to the plurality of motorized wheels for transferring energy therebetween. Each of the flywheels has permanent magnets affixed to a side of a housing thereof. Each of the flywheels is vacuum sealed within anon-ferrous housing.

Claims

1. A hybrid vehicle system comprising:

a first internal combustion engine;

a second internal combustion engine;

a first flywheel coupled to said first internal combustion engine;

a second flywheel coupled to said second internal combustion engine;

a plurality of motorized wheels electrically interconnected to said first and second flywheels; and

a controller means connected to said first and second internal combustion engines and to said first and second flywheels and to said plurality of motorized wheels for transferring energy therebetween, said first internal combustion engine having a shaft extending therefrom, said first flywheel being electromagnetically coupled to said shaft of said first internal combustion engine, said second internal combustion engine having a shaft extending therefrom, said second flywheel being electromagnetically coupled to said shaft of said second internal combustion engine.

2. The system of claim 1, each of the shafts of said first and second internal combustion engines having a coil thereon, said coil being energized with alternating and reversed magnetic fields, said coil being coupled to a permanent magnetic field of the flywheel.

3. The system of claim 2, said coil comprising a multi-phase winding affixed to the shaft.

4. The system of claim 1, each of said first and second flywheels being enclosed in a non-ferrous housing.

5. The system of claim 4, said non-ferrous housing having a vacuum therein.

6. The system of claim 1, each of said first and second flywheels having permanent magnets embossed onto a side of the flywheel.

7. The system of claim 1, each of said first and second flywheels being magnetically coupled to a stator mounted stationary relative to the flywheel.

8. The system of claim 1, said first internal combustion engine having a greater power output than said second internal combustion engine.

9. A hybrid vehicle system comprising:

a first internal combustion engine;

a second internal combustion engine;

a first flywheel coupled to said first internal combustion engine;

a second flywheel coupled to said second internal combustion engine;

a plurality of motorized wheels electrically interconnected to said first and second flywheels;

a controller means connected to said first and second internal combustion engines and to said first and second flywheels and to said plurality of motorized wheels for transferring energy therebetween;

a bus being connected to said first and second flywheels and to said plurality of motorized wheels;

a rectifying means cooperative with said first and second flywheels for converting an AC output of said first and second flywheels into DC power, said rectifying means connected to said bus; and

an inverting means interposed between said bus and said plurality of motorized wheels for converting the DC power of said bus into said AC power to said plurality of motorized wheels.

10. The system of claim 9, each of said plurality of motorized wheels being AC induction wheels.

11. A hybrid vehicle system comprising:

a first internal combustion engine;

a second internal combustion engine;

a first flywheel coupled to said first internal combustion engine;

a second flywheel coupled to said second internal combustion engine;

a plurality of motorized wheels electrically interconnected to said first and second flywheels;

a controller means connected to said first and second internal combustion engines and to said first and second flywheels and to said plurality of motorized wheels for transferring energy therebetween;

a first set of permanent magnets cooperative with said first flywheel; and

a second set of permanent magnets cooperative with said second flywheel, said first set of said permanent magnets embossed into a housing of said first flywheel, said second set of permanent magnets embossed into a housing of said second flywheel, each of said first and second sets of permanent magnets being electrically cooperative with said plurality of motorized wheels, each of said first and second sets of permanent magnets for transferring energy from said first and second flywheels respectively to said plurality of motorized wheels and for transferring braking energy from said plurality of motorized wheels to said first and second flywheels.

12. The system of claim 11, said controller means for selectively causing a transfer of energy from one of said first and second internal combustion engines to said first and second flywheels and for selectively transferring energy from one of said first and second flywheels to said plurality of motorized wheels.

13. The system of claim 11, further comprising:

a sensor means cooperative with said controller means for sensing a condition external of the system and for communicating such condition to said controller means.

14. The system of claim 11, further comprising:

a vehicle having a chassis, said plurality of motorized wheels being supported by said chassis, said chassis having said first and second internal combustion engines supported thereon.

15. The system of claim 11, said controller means for selectively causing a transfer of energy from said first internal combustion engine to said second flywheel, said controller means for selectively causing a transfer of energy from said second internal combustion engine to said first flywheel.

16. The system of claim 11, each of said plurality of motorized wheels being individually controlled by said controller means.