Multiple induction electric motor and vehicle
First Claim
1. A method for turning a shaft comprising:
- receiving a first direct current power input;
receiving a second direct current power input;
producing a first variable frequency alternating current control signal from the first direct current power input;
separately producing a second variable frequency alternating current control signal from the second direct current power input, synchronized to the first variable frequency alternating current control signal;
producing a first rotating magnetic field responsive to the first variable frequency alternating current control signal;
producing a second rotating magnetic field, responsive to the second variable frequency alternating current control signal and synchronized to the first rotating magnetic field;
inducing a first induced magnetic field around a conductor in a first inductive rotor, responsive to the first rotating magnetic field;
inducing a second induced magnetic field around a conductor in a second inductive rotor, responsive to the second rotating magnetic field;
applying a first rotational force between the first rotating magnetic field and the first induced magnetic field to the shaft; and
applying a second rotational force between the second rotating magnetic field and the second induced magnetic field to the shaft.
3 Assignments
0 Petitions
Accused Products
Abstract
A novel multiple induction electric motor and vehicle that stores electrical power; provides a first and second direct current power input from the stored electrical power; separately produces first and second synchronized variable frequency alternating current control signal from the first and second direct current power inputs, respectively; produces first and second synchronized rotating magnetic fields responsive to the first and second variable frequency alternating current control signals, respectively; induces a first induced magnetic field around a conductor in a first inductive rotor responsive to the first rotating magnetic field; induces a second induced magnetic field around a conductor in a second inductive rotor responsive to the second rotating magnetic field; applies first and second rotational forces between the first and second rotating magnetic fields and the first and second induced magnetic fields to the shaft; and transmits the first and second rotational forces to a drive wheel.
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Citations
40 Claims
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1. A method for turning a shaft comprising:
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receiving a first direct current power input; receiving a second direct current power input; producing a first variable frequency alternating current control signal from the first direct current power input; separately producing a second variable frequency alternating current control signal from the second direct current power input, synchronized to the first variable frequency alternating current control signal; producing a first rotating magnetic field responsive to the first variable frequency alternating current control signal; producing a second rotating magnetic field, responsive to the second variable frequency alternating current control signal and synchronized to the first rotating magnetic field; inducing a first induced magnetic field around a conductor in a first inductive rotor, responsive to the first rotating magnetic field; inducing a second induced magnetic field around a conductor in a second inductive rotor, responsive to the second rotating magnetic field; applying a first rotational force between the first rotating magnetic field and the first induced magnetic field to the shaft; and applying a second rotational force between the second rotating magnetic field and the second induced magnetic field to the shaft.
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2. A system for turning a shaft comprising:
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means for receiving a first direct current power input; means for receiving a second direct current power input; means for producing a first variable frequency alternating current control signal from the first direct current power input; means for separately producing a second variable frequency alternating current control signal from the second direct current power input, synchronized to the first variable frequency alternating current control signal means for producing a first rotating magnetic field responsive to the first variable frequency alternating current control signal; means for producing a second rotating magnetic field, responsive to the second variable frequency alternating current control signal and synchronized to the first rotating magnetic field; means for inducing a first induced magnetic field around a conductor in a first inductive rotor, responsive to the first rotating magnetic field; means for inducing a second induced magnetic field around a conductor in a second inductive rotor, responsive to the second rotating magnetic field; means for applying a first rotational force between the first rotating magnetic field and the first induced magnetic field to the shaft; and means for applying a second rotational force between the second rotating magnetic field and the second induced magnetic field to the shaft. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9)
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10. A system for turning a shaft comprising:
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a first variable frequency motor drive controller; a second variable frequency motor drive controller synchronized to the first variable frequency motor drive controller; a first stator positioned and arranged to receive a first variable frequency alternating current control signal from the first variable frequency motor drive controller; a second stator positioned and arranged to receive a second variable frequency alternating current control signal from the second variable frequency motor drive controller; a first inductive rotor responsive to the first stator and rigidly joined to the shaft; and a second inductive rotor responsive to the second stator and rigidly joined to the shaft. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of propelling a vehicle comprising:
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storing electrical power; providing a first direct current power input from the stored electrical power; providing a second direct current power input from the stored electrical power; producing a first variable frequency alternating current control signal from the first direct current power input; separately producing a second variable frequency alternating current control signal from the second direct current power input, synchronized to the first variable frequency alternating current control signal; producing a first rotating magnetic field responsive to the first variable frequency alternating current control signal; producing a second rotating magnetic field, responsive to the second variable frequency alternating current control signal, synchronized to the first rotating magnetic field; inducing a first induced magnetic field around a conductor in a first inductive rotor responsive to the first rotating magnetic field; inducing a second induced magnetic field around a conductor in a second inductive rotor responsive to the second rotating magnetic field; applying a first rotational force between the first rotating magnetic field and the first induced magnetic field to the shaft; applying a second rotational force between the second rotating magnetic field and the second induced magnetic field to the shaft; and transmitting the first and second rotational forces to a drive wheel. - View Dependent Claims (18, 19)
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20. A vehicle comprising:
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means for supporting a load; at least one means for propelling the means for carrying a load by applying rotational motion to the ground and carrying at least a portion of the means for supporting a load; means, mounted on the means for supporting a load, for storing electrical power; means, mounted on the means for supporting a load, for providing a first direct current power input from the stored electrical power; means, mounted on the means for supporting a load, for providing a second direct current power input from the stored electrical power; means, mounted on the means for supporting a load, for producing a first variable frequency alternating current control signal from the first direct current power input; means, mounted on the means for supporting a load, for separately producing a second variable frequency alternating current control signal from the second direct current power input, synchronized to the first variable frequency alternating current control signal; means, mounted on the means for supporting a load, for producing a first rotating magnetic field responsive to the first variable frequency alternating current control signal; means, mounted on the means for supporting a load, for producing a second rotating magnetic field, responsive to the second variable frequency alternating current control signal, synchronized to the first rotating magnetic field; means, mounted on the means for supporting a load, for inducing a first induced magnetic field around a conductor in a first inductive rotor responsive to the first rotating magnetic field; means, mounted on the means for supporting a load, for inducing a second induced magnetic field around a conductor in a second inductive rotor responsive to the second rotating magnetic field; means, mounted on the means for supporting a load, for applying a first rotational force between the first rotating magnetic field and the first induced magnetic field to the shaft; means, mounted on the means for supporting a load, for applying a second rotational force between the second rotating magnetic field and the second induced magnetic field to the shaft; and means for converting the first and second rotational forces to the at least one means for propelling the means for carrying a load by applying rotational motion to the ground. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A vehicle comprising:
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a chassis, a drive wheel carrying at least a portion of the chassis; a first electrical power storage mounted on the chassis; a first variable frequency motor drive controller positioned and arranged to receive direct current power from the first electrical power storage; a second variable frequency motor drive controller positioned and arranged to receive direct current power from the first electrical power storage, synchronized to the first variable frequency motor drive controller; a first stator positioned and arranged to receive a first variable frequency alternating current control signal from the first variable frequency motor drive controller; a second stator positioned and arranged to receive a second variable frequency alternating current control signal from the second variable frequency motor drive controller; a first inductive rotor responsive to the first stator and rigidly joined to the shaft; a second inductive rotor responsive to the second stator and rigidly joined to the shaft; and a transmission coupling the shaft to the drive wheel. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40)
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Specification