Patent ID: 9221351
Filing Date: 2015-12-29
Classification: B60L,H02J,Y02T

Abstract:
1. A system for wireless power transmission, said system comprising: a primary circuit including a grid converter and a primary coil located in a primary pad; a secondary circuit located in a vehicle and comprising a secondary coil, a current rectification circuit connected to said secondary coil, and a battery connected to said current rectification circuit; a battery management system configured to measure at least one parameter of said battery; a vehicle-side communication means configured to transmit information on said at least one parameter of said battery, wherein said at least one parameter is a measure of an effective resistance of said battery as seen by said primary circuit; an output voltage controller configured to control an alternating current (AC) output voltage of said grid converter based on information derived from said at least one parameter of said battery, wherein said information derived from said at least one parameter of said battery comprises a target value for each of one or more waveform parameters of said AC output voltage; and a computation means configured to generate said one or more target values from said at least one parameter of said battery.