Auckland Uniservices Limited

Lantal Textiles

Pearce, Matthew

Covic, Grant Anthony

Marquez, Abiezer Tejeda

Boys, John Talbot

Gawith, James Duncan Deans

Lee, Joshua, Reuben

Grant Anthony Covic

John Talbot Boys

Mickel Bipin Budhia

Chang-Yu Huang

Michael Le Gallais Kissin

Duleepa Jayanath Thrimawithana

Daniel James Robertson

Grant Arthur John Elliott

Michael John Neath

Stefan Raabe

Joshua Reuben Lee

Nicholas Athol Keeling

Jonathan Beaver

Udaya Kumara Madawala

Edward L Van Boheemen

Lei Zhao

Adeel Zaheer

Abhilash Kamineni

Matthew Pearce

Hunter Hanzhuo Wu

James Duncan Deans Gawith

Michael Le Galais Kissin

Jason Edward Ian James

Seho Kim

Dariusz Kacprzak

Feiyang Lin

Urs Baumann

Vahid Zahiri Barsari

Hui Zhi Beh

Abiezer Tejeda Marquez

Matthew Geoffrey Seymour Pearce

Grant Arthur John Elliot

Edward Van Boheemen

Foreign object detection apparatus for an IPT system, includes a control means adapted to detect the presence of a foreign object on or adjacent to an IPT primary pad of the system.

Inductive power transfer system and method

An IPT system magnetic flux pad includes two substantially planar coils () in close proximity to each other above a magnetically permeable core (). The coils () each define a pole area () and the distance between one or more adjacent turns of the coils () located in a region between the pole areas () being different from the distance between one or more adjacent turns of the coils () located outside the region between the pole areas ().

Inductive power transfer apparatus

A method of charging a battery includes coupling an electricity network or subnetwork to the battery using inductive power transfer, transferring electrical energy to the battery from the electricity network or subnetwork and varying the inductive power transfer using a controller of the electricity network or subnetwork according to at least one predetermined criteria of the electricity network or subnetwork.

Systems and methods for battery charging

An IPT track arrangement including a power supply and conductor electrically connected to the power supply, the conductor includes a plurality of loops located substantially adjacent one another, wherein the polarity in adjacent portions of the loops is the same, and wherein the power supply includes a one or more inverters which share the track load.

Double conductor single phase inductive power transfer tracks

A wireless coupling structure has a first layer comprising a flux coupling coil having two opposing end regions separated by two opposing side regions; a second layer comprising a first block of ferrite and a second block of ferrite; and a third layer comprising a leakage flux control coil. The first block is provided next to one of the end regions and the second block is provided next to the other of the end regions.

Wireless power transfer coupling structures with reduced leakage flux

A circuit for energizing a magnetic flux coupling apparatus has a pick-up coil for receiving power inductively, a storage capacitor for storing energy from the received power, and an inverter for supplying electrical energy from the storage capacitor to the magnetic flux coupling apparatus. The circuit allows power transfer to a load to be supplied by the flux coupling apparatus to exceed the power received from the pick-up.

Inductive power system suitable for electric vehicles

A roadway powered electric vehicle system includes a power supply () which makes power available inductively to one or more modules () provided in or under a roadway. Modules () make a magnetic field selectively available to one or more vehicles travelling over the roadway corresponding to the location of the vehicle. The presence or strength of the magnetic field provided on the roadway may be dependent upon the vehicle type or category.

Roadway powered electric vehicle system

A magnetic structure for wireless power transfer has a plurality of pieces of magnetically permeable material arranged along a first dimension. Each piece is separated from a neighbouring piece by a gap defining a separation distance which is selected to prevent partial saturation of a region of the structure.

Current distribution and thermal regulation in inductive power transfer coupling structures

An inductive or wireless power transfer coupler array has at least two coupler modules connected in parallel to a common power source. Each coupler module comprises

Inductive power transfer coupler array

The present invention provides a multi-coil inductive power transfer primary comprising a plurality of coil. A power transfer regime is selected based on a determined load on each of the plurality of coils.

Multiple coil flux pad

A method of detecting a wirelessly powered vehicle on a roadway uses detection of induced voltages or currents in coils provided in the roadway. Once the vehicle has been detected the appropriate coils can be energised to power the vehicle.

Electric vehicle detection for roadway wireless power transfer

An inductive charging apparatus includes a primary conductor with at least one node for creating a magnetic field and at least one intermediate resonant circuit including a first coil for receiving inductive power from the node, a second coil operable in use to be driven by current from the first coil to generate a magnetic field for power transfer, and a tuning capacitor coupled to the first and second coils for resonance therewith.

Inductive power transfer apparatus and electric autocycle charger including the inductive power transfer apparatus

Disclosed herein is an inductive power transfer (IPT) compensation circuit and method for reflecting a controlled reactance to a primary conductor at a selected operating frequency, compensating for reactive loads reflected to the primary conductor by one or more other pick-ups inductively coupled with the primary conductor in use. The compensation circuit comprises a first switch means coupled to a resonant circuit and operable to reflect a capacitive reactance to the primary conductor; a second switch means coupled to the resonant circuit and operable to reflect an inductive reactance to the primary conductor; and control means adapted to control operation of the first and second switch means to compensate for inductive and capacitive reactances, respectively, in the primary conductor.

VAR control for inductive power transfer systems

Growing community of inventors

Auckland, New Zealand

Grant Anthony Covic