Troy, MI, United States
Troy, MI, United States

Protean Electric is a technology company that has developed an in-wheel, electric-drive system for hybrid, plug-in hybrid, and battery electric light-duty vehicles. Their technology creates a permanent magnet e-machine with relatively high torque and power density with the power electronics and controls packaged within the motor itself. Their in-wheel motor product is intended to be produced in low volume by Protean Electric and licensed in high volume to global automotive and Tier 1 automotive supply companies. Protean Electric is a privately held company with approximately 65 employees. Protean Electric has operations in the United States, United Kingdom, Shanghai China and Hong Kong. Wikipedia.

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Patent
Protean Electric | Date: 2014-06-20

A control module for an electric motor having a stator that includes a first surface, wherein cooling fluid is arranged to flow within the stator for providing cooling to the first surface, the power module comprising a power device having switching elements for controlling current flow in coil windings mounted on the stator; a control device for controlling the operation of the switching devices; a housing with a first side for mounting to the first surface of the stator, wherein the first side of the housing includes an aperture for allowing a portion of the power device to be in contract with the first surface of the stator when the housing is mounted to the first surface for providing cooling to the switching elements, wherein the control device is arranged to be mounted in the housing on an opposite side of the power device to the first side of the housing and an elastomer is located over the power device and the control device for providing an electrical insulation barrier over the switches on the power device and electrical components on the control device.


Patent
Protean Electric | Date: 2014-06-20

An electric motor or generator comprising a stator with at least one coil winding, wherein the stator includes a first surface having a section of the at least one coil winding extending in a direction away from the first surface, and a control module having a housing with a first side that is arranged to be mounted to the first surface of the stator, wherein the housing includes a first element for detecting current flow, and a control device for controlling current flow in the at least one coil winding based upon the current flow detected by the first element, wherein the section of the at least one coil winding that is arranged to extend away from the first surface is arranged to extend through an aperture formed on the first side of the housing for coupling to the control device, wherein the first element is mounted in the housing adjacent to the aperture.


Patent
Protean Electric | Date: 2014-06-06

An inverter for an electric motor or generator having a first device and a second device mounted on an element. The first device includes a first switch, a first contact arranged to be coupled to a first terminal of a power source, and a second contact. The second device includes a second switch, a third contact arranged to be coupled to a second terminal of a power source, and a fourth contact. The first device and the second device are mounted on the element such that a portion of the first contact of the first device that is arranged to be coupled to the first terminal of a power source and a portion of the third contact of the second device that is arranged to be coupled to second terminal of a power source are located adjacent to each other on a first region of the element and the second contact of the first device and the fourth contact of the second device are arranged to be coupled to a coil winding of the electric motor or generator.


Patent
Protean Electric | Date: 2014-04-11

A control system for an electric motor, the control system comprising a first control device arranged to control an operation of a first component of the electric motor; a second control device arranged to control an operation of a second component of the electric motor, wherein the first control device is arranged to transmit to the second control device a first signal for indicating the transmission of data over a first communication link to the second control device, wherein the second control device is arranged to use the timing of the first signal to synchronise the operation of the second component with the operation of the first component.


Patent
Protean Electric | Date: 2013-10-30

An electric motor of the type comprising a plurality of coils circumferentially mounted around a stator on teeth and a plurality of magnets mounted on a rotor is provided with the motor including a cooling plate. The cooling plate has channels that are arranged to cool the coils on three sides with a first channel provided on a first side of the coils and located on a first side of the teeth, a second channel provided on a second side of the coils and located on a second side of the teeth, and a third channel provided on a third side of the teeth that is adjacent to the first and second sides of the teeth.


Patent
Protean Electric | Date: 2014-04-27

An electric motor with a stator having two coil sets arranged to produce a magnetic field of the motor, each coil set having a plurality of coil sub-sets; and two control devices, wherein the first control device is coupled to the plurality of coil sub-sets for the first coil set and the second control device is coupled to the plurality of coil sub-sets for the second coil set and each control device is arranged to control current in the respective plurality of coil sub-sets to generate a magnetic field in each coil sub-set to have a substantially different magnetic phase to the other one or more coil sub-sets in the respective coil set; and wherein the first control device and the second control device are mounted adjacent to the stator.


Patent
Protean Electric | Date: 2013-06-11

A control unit for identifying a fault in an electric motor or generator, the control unit comprising means for measuring a value of a first parameter associated with the operation of the electric motor or generator; means for increasing a counter value if the difference between the measured first parameter value or a value derived from the measured value and a second value is greater than a first predetermined value; means for decreasing the counter value if the difference between the measured first parameter value and the second value is less than the first predetermined value; and means for generating a signal indicative of a fault if the counter value exceeds a second predetermined value.


Patent
Protean Electric | Date: 2014-06-06

An electric motor or generator having a stator with stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface that is substantially perpendicular to an axis of rotation of the rotor and the rotor has a second surface that is formed in substantially the same radial position as the stators first surface, wherein upon the rotor being pivoted perpendicular to the axis of rotation of the rotor the first surface and the second surface are arranged to prevent the rotor coming into contact with the stator teeth.


Patent
Protean Electric | Date: 2014-09-10

An electric motor or generator comprising a stator having stator teeth for mounting electrical coils, a rotor, a first electrical device arranged to control current in the electric coils to generate a rotational torque on the rotor and a second electrical device arranged to modify current provided to the first electrical device, wherein the stator includes a cooling arrangement having a cooling channel arranged to cool the electrical coils, the first electrical device and the second electrical device.


Patent
Protean Electric | Date: 2014-12-19

A rotor for an electric motor or generator, the rotor comprising a radial portion, a cylindrical portion, a first soft ferromagnetic material element, and a second soft ferromagnetic material element, wherein the radial portion is arranged to be rotatably mounted to a stator and the cylindrical portion is arranged to axially extend over radial teeth formed on the stator when the rotor is rotatably mounted to the stator, wherein a first surface of the first soft ferromagnetic material element is mounted to an inner surface of the cylindrical portion and a second surface of the first soft ferromagnetic material element is arranged to have mounted on it a first magnet such that a surface of a pole of the first magnet is oriented substantially non perpendicular to a line from the centre of the rotor to the first magnet, wherein a first surface of the second soft ferromagnetic material element is arranged to be mounted to the first magnet such that the first magnet is sandwiched between the first soft ferromagnetic material element and the second soft ferromagnetic material element, wherein a second surface of the second soft ferromagnetic material element arranged to be substantially perpendicular to the line from the centre of the rotor to the first magnet.

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