Patent ID: 8867180
Filing Date: 2014-10-21
Classification: B60L,H02H,Y02T

Abstract:
1. An electric circuit implemented in an electric vehicle, the electric circuit comprising: an electric propulsion motor configured for propelling the electric vehicle; an energy storage system comprising cells, wherein a throttle control operated by a user causes either a normal current or a peak current to flow from the energy storage system to the electric propulsion motor, the peak current being transient relative to the normal current; a first selective active protection element in a first path from the energy storage system to the electric propulsion motor, the first selective active protection element comprising a first overcurrent protector connected in series with a first switch for selectively opening and closing the first path; a second selective active protection element in a second path from the energy storage system to the electric propulsion motor, the second selective active protection element comprising a second overcurrent protector connected in series with a second switch for selectively opening and closing the second path; and a control circuit for the first and second switches, the control circuit configured to receive input generated by the throttle control, wherein when the input corresponds to the normal current the first switch is closed and the second switch is open, so that the normal current flows through the first path, and wherein when the input corresponds to the peak current both the first and second switches are closed, so that the peak current flows through the first and second paths.