Patent ID: 9045052
Filing Date: 2015-06-02
Classification: B60L,H01M,H02J,Y02E,Y02T

Abstract:
1. A battery pack for an electric vehicle, comprising: a first battery arranged in parallel with a load of the electric vehicle; a second battery arranged in parallel with the first battery and the load; a first semiconductor switching module arranged in series with the first battery, the first semiconductor switching module arranged to selectively allow current flow from the first battery to the load and from the load to the first battery, the first semiconductor switching module including a first semiconductor switch arranged in parallel with a first diode, and a second semiconductor switch arranged in series with the first semiconductor switch and in parallel with a second diode; a second semiconductor switching module arranged in series with the second battery, the second semiconductor switching module arranged to selectively allow current flow from the second battery to the load and from the load to the second battery, the second semiconductor switching module including a third semiconductor switch arranged in parallel with a third diode, and a fourth semiconductor switch arranged in series with the third semiconductor switch and in parallel with a fourth diode; and a battery control module that selectively turns on and off the first semiconductor switching module and the second semiconductor switching module.