Vehicle including a three-phase generator

• US 6,777,846 B2
• Filed: 12/14/2001
• Issued: 08/17/2004
• Est. Priority Date: 04/16/2001
• Status: Expired due to Term

• Current Assignee: Briggs & Stratton LLC (Briggs & Stratton Corporation)
• Original Assignee: Briggs & Stratton Corporation
• Inventors: Rose, Robert E. Sr., Feldner, John
• Primary Examiner(s): LE, DANG D
• Application Number:
  US10/017,011
• Publication Number:
  US 20020149277A1
• Time in Patent Office: 977 Days
• Field of Search: 310/74, 310/152, 310/153, 310/68.D, 310/68.R, 310/70.R, 310/70.A, 310/200, 310/189, 745/72, 123/3, 307/10.1, 180/165, 180/65.3, 180/65.4, 322/4, 290/46-48
• US Class Current: 310/200
• CPC Class Codes: B60K 6/26 characterised by the motors or the generators
• CPC Class Codes: B60K 6/485 Motor-assist type
• CPC Class Codes: B60L 15/007 Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• CPC Class Codes: B60L 2200/22 Microcars, e.g. golf cars
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 2260/12 of combustion engines
• CPC Class Codes: B60L 50/30 using propulsion power stored mechanically, e.g. in fly-wheels
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: F02B 63/04 for electric generators
• CPC Class Codes: H02K 7/1807 Rotary generators H02K7/006 takes precedence
• CPC Class Codes: H02K 7/1815 structurally associated with reciprocating piston engines general aspects of generating sets, e.g. housing, F02B63/04
• 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: Y10S 903/906 Motor or generator

Abstract

A vehicle including a plurality of wheels, an internal combustion engine having a drive shaft interconnected to drive at least one of the wheels, a stator having a core disposed next to the engine and a plurality of wires disposed on the core in a three phase winding arrangement, and a flywheel-rotor apparatus surrounding at least a portion of the stator and having an aperture that receives the drive shaft. The flywheel-rotor apparatus is operable to magnetically interact with the stator to produce a three-phase alternating current in the wires, and provides an inertia to the internal combustion engine. The vehicle further includes power circuitry electrically connected to the wires. The power circuitry receives the three-phase alternating current and controllably generates a single-phase alternating current.

Claims

1. A vehicle comprising:

a plurality of wheels;

an internal combustion engine having a drive shaft interconnected to drive at least one of the wheels;

a stator having a core and a plurality of conductors disposed on the core in a three-phase arrangement;

a flywheel-rotor apparatus disposed adjacent to the stator and interconnected with the drive shaft, the flywheel-rotor apparatus being operable to magnetically interact with the stator to produce a high-voltage, three-phase alternating current in the conductors, and to provide an inertia to the internal combustion engine;

power circuitry electrically connected to the plurality of conductors, the power circuitry being operable to receive the high-voltage, three-phase alternating current and to controllably generate a first-voltage, single-phase alternating current;

an electrical outlet electrically connected to the power circuitry, the electrical outlet being configured to receive the single-phase alternating current and make the single-phase alternating current available for use by an operator;

wherein the stator further includes a low-voltage conductor disposed on the core; and

wherein the flywheel-rotor apparatus magnetically interacts with the low-voltage conductor to produce a second-voltage, single-phase alternating current in the low-voltage conductor.

2. A vehicle as set forth in claim 1 wherein the high-voltage, three-phase alternating current is greater than approximately two hundred volts peak-to-peak, and the second-voltage, single-phase alternating current is less than approximately fifty volts peak-to-peak.

3. A vehicle as set forth in claim 1 wherein the power circuitry includes a first power circuitry, and

wherein the vehicle further comprises:

a second power circuitry electrically connected to the low-voltage conductor, the second power circuitry being operable to receive the second voltage, single-phase alternating current and controllably generate a direct current.

4. A vehicle as set forth in claim 3 wherein the first-voltage, single-phase alternating current is between ninety and one hundred thirty five volts root-mean-square, and the direct current is between ten and fifty volts.

5. A vehicle as set forth in claim 3 wherein the first-voltage, single-phase alternating current is approximately one hundred twenty volts root-mean-square, and the direct current is approximately twelve volts.

6. A vehicle as set forth in claim 1 wherein the core includes a plurality of teeth, the total number of teeth being represented by (x) where (x) is an integer,

wherein the plurality of conductors are disposed on (n) teeth where (n) is an integer less than (x), and

wherein the low-voltage conductor is disposed on (x−

n) teeth.

7. A vehicle as set forth in claim 1 wherein the core includes a plurality of teeth,

wherein the plurality of conductors are disposed on each of the teeth, and

wherein the low-voltage conductor is disposed on at least one of the teeth.

8. A vehicle as set forth in claim 1 wherein the flywheel-rotor apparatus surrounds at least a portion of the stator.

9. A vehicle as comprising:

a plurality of wheels;

an internal combustion engine having a drive shaft interconnected to drive at least one of the wheels;

a stator having a core and a plurality of conductors disposed on the core in a three-phase arrangement;

a flywheel-rotor apparatus disposed adjacent to the stator and interconnected with the drive shaft, the flywheel-rotor apparatus being operable to magnetically interact with the stator to produce a three-phase alternating current in the conductors, and to provide an inertia to the internal combustion engine;

power circuitry electrically connected to the plurality of conductors, the power circuitry being operable to receive the three-phase alternating current and to controllably generate a single-phase alternating current;

an electrical outlet electrically connected to the power circuitry, the electrical outlet being configured to receive the single-phase alternating current and make the single-phase alternating current available for use by an operator;

wherein the power circuitry includes a first power circuitry;

wherein the three-phase, alternating current is a first three-phase, alternating current;

wherein the single-phase alternating current is a first signal-phase alternating current; and

wherein the vehicle further comprises;

a second power circuitry having at least two connections interconnected with the plurality of conductors, at least one of the two connections being a tap off of one of the phases, the second power circuitry being operable to receive a second alternating current and to controllably generate a direct current.

10. A vehicle as set forth in claim 9 wherein the second alternating current is a single-phase current.

11. A vehicle as set forth in claim 9 wherein the second alternating current is a three-phase current.

12. A vehicle as set forth in claim 9 wherein the first single-phase alternating current is between ninety and one hundred thirty five volts root-mean-square, and the direct current is between ten and fifty volts.

13. A vehicle as set forth in claim 9 wherein the first single-phase alternating current is approximately one hundred twenty volts root-mean-square, and the direct current is approximately twelve volts.

14. A vehicle as set forth in claim 9 wherein the second power circuitry has three connections to the plurality of conductors, each connection being a tap off of a distinct one of the phases.

15. A vehicle comprising:

a plurality of wheels;

an internal combustion engine having a drive shaft interconnected to drive at least one of the wheels;

a stator having a core and a plurality of conductors disposed on the core in a three-phase arrangement;

a flywheel-rotor apparatus disposed adjacent to the stator and interconnected with the drive shaft, the flywheel-rotor apparatus being operable to magnetically interact with the stator to produce a three-phase alternating current in the conductors, and to provide an inertia to the internal combustion engine;

power circuitry electrically connected to the plurality of conductors, the power circuitry being operable to receive the three-phase alternating current and to controllably generate a single-chase alternating current;

an electrical outlet electrically connected to the power circuitry, the electrical outlet being configured to receive the single-phase alternating current and make the single-phase alternating current available for use by an operator;

wherein the power circuitry includes a first power circuitry;

wherein the three-phase alternating current is a first three-phase alternating current;

wherein the single-phase alternating current is a first single-phase alternating current; and

wherein the vehicle further comprises;

a second power circuitry having at least two connections interconnected with the plurality of conductors, the second power circuitry being operable to receive a second alternating current and controllably generate a low-voltage direct current.

16. A vehicle as set forth in claim 15 wherein the second alternating current is a signal-phase alternating current.

17. A vehicle as set forth in claim 15 wherein the second alternating current is a three-phase alternating current.

18. A vehicle as set forth in claim 15 wherein the first single-phase alternating current is between ninety and one hundred thirty five volts root-mean-square, and the direct current is between ten and fifty volts.

19. A vehicle as set forth in claim 15 wherein the first single-phase alternating current is approximately one hundred twenty volts root-mean-square, and the direct current is approximately twelve volts.

20. A vehicle as set forth in claim 15 wherein the second power circuitry includes two connections interconnected with the plurality of conductors.

21. A vehicle as set forth in claim 15 wherein the second power circuitry includes three connections interconnected with the plurality of conductors.

22. A vehicle as set forth in claim 15 wherein the first and second power circuitries are interconnected.