Schneider Electric Industries Sas

Gauthier Leconte

Yann Herriot

Dimitrios Ladas

The invention relates to a method for charging a vehicle battery by induction from a charging device including a charge transmitter including a primary coil Land an inverter capable of supplying the primary coil Lwith an AC supply voltage E. Said device also includes a charge receiver including a secondary coil Larranged in a vehicle. Said method consists of adjusting a frequency f of the power supply voltage (E) to the resonance frequency fo, when a motor vehicle is located in a parking space. Said method comprises the following steps: setting a first power-transmission parameter (E, f); starting an iterative test which consists of: setting a value of a second power-transmission parameter (E, f); varying the second power-transmission parameter (E, f) in a second authorized adjustment range; measuring the power (Pbat) transmitted between the charge transmitter and the charge receiver; determining if the power (Pbat) is no lower than a predetermined operating threshold (PObj); determining if the power (Pbat) increases; ending the iterative test if the transmitted power (Pbat) is higher than the predetermined operating threshold (PObj); setting the power supply voltage (E) in order to reach the measured transmitted power (Pbat), said first and second transmission parameters being set to the previously established value thereof.

Growing community of inventors

Grenoble, France

Gauthier Leconte