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Base side vehicle identification using vehicle controller switching frequency

A technology for controllers and vehicles, which is applied in vehicle components, vehicle energy storage, electric vehicles, etc., and can solve the problems of active base pad marking vehicles, etc.

Active Publication Date: 2019-02-05
WITRICITY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such systems, it may be difficult for the central system controller to identify the vehicle with the associated active base pad

Method used

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  • Base side vehicle identification using vehicle controller switching frequency
  • Base side vehicle identification using vehicle controller switching frequency
  • Base side vehicle identification using vehicle controller switching frequency

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Embodiment Construction

[0036] In the following detailed description, reference is made to the accompanying drawings, which form a part of this disclosure. The illustrative implementations described in the detailed description, drawings, and claims are not meant to be limiting. Other implementations may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here. It will be readily understood that the aspects of the disclosure as generally described herein and illustrated in the drawings may be arranged, substituted, combined and designed in various configurations, all of which are expressly contemplated and in the form public part.

[0037] Wireless power transfer may refer to the transfer of any form of energy associated with electric, magnetic, electromagnetic fields, etc., from a transmitter to a receiver without the use of physical electrical conductors (eg, power may be transferred through free space). Power output to a wireless ...

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Abstract

Techniques for wirelessly transferring energy to a vehicle are disclosed. An example method for wirelessly transferring energy to a vehicle according to the disclosure includes detecting a ripple frequency on a transmitter coil circuit, such that the ripple frequency is associated with a vehicle switch mode controller frequency of a switch mode controller in the vehicle, and providing an electrical current to a coil in the transmitter coil circuit based at least in part on the ripple frequency.

Description

technical field [0001] The present application relates generally to wireless charging of rechargeable devices, such as electric vehicles, and more particularly to systems and methods for base-side vehicle pad identification using vehicle controller switching frequencies. Background technique [0002] Rechargeable systems, such as vehicles, have been introduced that include motion power derived from power received from an energy storage device, such as a battery. Purely electric vehicles typically receive power for charging the battery from other sources. It is often proposed to charge battery electric vehicles by some type of wireless charging system capable of transferring power in free space (eg, via a wireless field). Some of these systems can provide wireless power to multiple vehicles while the vehicles are on the road (moving or stationary). In some multi-vehicle charging solutions, a central basic charging control unit is used. In such systems, it may be difficult ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/122
CPCB60L2270/147Y02T90/14Y04S30/14B60L53/30B60L53/38B60L53/39B60L53/36B60L53/65B60L53/122B60L53/126Y02T10/7072Y02T10/70Y02T90/12Y02T90/167Y02T90/16H02J50/12
Inventor C-Y·黄M·尼斯M·L·G·基辛
Owner WITRICITY CORP