Control system for an electric motor
First Claim
1. An apparatus for controlling multiple vehicle systems comprising:
- a single power supply providing a direct current source;
a power converter electrically connected to said power supply for converting direct current to alternating current;
a plurality of induction motors for operating various vehicle systems, said motors receiving alternating current via electrical connections between said converter and said motors;
a central processor connected to relays that send power to each of said motors for providing control signals to said motors based on input from control members used to activate each of said various vehicle systems;
at least one sensor associated with each of said motors for monitoring voltage or current of said respective motor and generating a diagnostic signal that is sent to said processor; and
a piezoelectric material associated with each of said motors for providing an internal feedback control signal for said motor.
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0 Petitions
Accused Products
Abstract
An apparatus for controlling multiple vehicle systems includes a single power supply that provides a direct current source. The power supply is comprised of a thirty-six volt (36 V) battery power distribution system. A converter is electrically connected to the power supply to convert direct current to alternating current. A plurality of induction motors are used to operate various vehicle systems. The motors receive alternating current via electrical connections between the converter and the motors. A central processor is connected to relays sending power to each of the motors and provides control signals to the motors based on input from control members used to activate each of the various vehicle systems. At least one sensor is associated with each of the motors to monitor voltage or current of the respective motor and to generate a diagnostic signal that is sent to the processor. The processor generates a warning signal when any of the diagnostic signals indicates that voltage within the respective motor is outside a predetermined range. A piezoelectric material is associated with each of the motors to provide an internal control signal for the motor. The piezoelectric material can be used to control acceleration or deceleration of the motor based on the rotational force of a rotor within the motor or can be use to activate an auxiliary winding in the motor based on mechanical input to the respective controller.
31 Citations
20 Claims
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1. An apparatus for controlling multiple vehicle systems comprising:
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a single power supply providing a direct current source;
a power converter electrically connected to said power supply for converting direct current to alternating current;
a plurality of induction motors for operating various vehicle systems, said motors receiving alternating current via electrical connections between said converter and said motors;
a central processor connected to relays that send power to each of said motors for providing control signals to said motors based on input from control members used to activate each of said various vehicle systems;
at least one sensor associated with each of said motors for monitoring voltage or current of said respective motor and generating a diagnostic signal that is sent to said processor; and
a piezoelectric material associated with each of said motors for providing an internal feedback control signal for said motor. - View Dependent Claims (2, 3, 4, 5)
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6. An apparatus for controlling multiple vehicle systems comprising:
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a forty-two volt (42 V) power distribution system for generating direct current;
a converter mechanism electrically connected to said power distribution system for converting direct current to alternating current;
a plurality of induction motors for operating various vehicle systems, said motors receiving alternating current via electrical connections between said converter mechanism and said motors;
a plurality of control members for actuating said various vehicle systems; and
a central processor connected to each of said motors for receiving sensor feedback signals from said motors based on input from said control members. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. An apparatus for controlling multiple vehicle systems comprising:
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a single power supply providing a direct current source;
a converter electrically connected to said power supply for converting direct current to alternating current;
at least one induction motor for operating a vehicle system wherein said motor has a stator electrically connected to said converter and a rotor that rotates with respect to said stator;
a central processor connected to relays that send power to said motor based on input from a control member used to activate said vehicle system; and
a piezoelectric material mounted on said rotor and responsive to the centrifugal force generated as said rotor rotates with respect to said stator, said piezoelectric material generating a feedback signal for regulation of acceleration and deceleration of said rotor. - View Dependent Claims (15, 16, 17)
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18. An apparatus for controlling multiple vehicle systems comprising:
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a single power supply providing a direct current source;
a converter electrically connected to said power supply for converting direct current to alternating current;
at least one induction motor for operating a vehicle system wherein said motor has a stator electrically connected to said converter and a rotor that rotates with respect to said stator;
a central processor connected to relays for providing a control signal to said motor based on input from a control member used to activate said vehicle system; and
a piezoelectric material associated with said control member such that when a mechanical force is applied to said control member a voltage pulse is generated by said piezoelectric material to start said motor. - View Dependent Claims (19, 20)
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Specification