Patent ID: 7884569
Filing Date: 2011-02-08
Classification: B60L,H02J,Y02T,Y10S

Abstract:
1. A solar battery charging system for a vehicle comprising: an electric vehicle drive motor for braking and propelling the vehicle; a battery connected to the electric vehicle drive motor, the battery comprising a plurality of series connected battery cells; a solar panel having an output voltage lower than the voltage of the battery; and a series charger comprising: switches that selectively connect terminals of the solar panel in parallel with each of the series connected battery cells; and a switch controller configured to control the switches to separately connect the solar panel in parallel with one of the plurality of battery cells at a time such that the solar panel is directly connected with the one of the plurality of battery cells without coupled through a transformer, while each of the plurality of battery cells remains connected in series, and while the electric vehicle drive motor can act as a generator to supply power to the battery during braking or a load to draw power from the battery during the propelling of the vehicle.