Patent ID: 7570012
Filing Date: 2009-08-04
Classification: B60L,H01M,H02J,Y02E,Y02T

Abstract:
1. A power source for supplying electrical power to a driving motor, said driving motor drawing electrical power at different rates, the power source comprising: a first rechargeable energy battery having a first total impedance for storing electrical energy and providing electrical power to the electrical motor at a first range of power rates; a second rechargeable power battery having a second total impedance, less than the first total impedance, for storing electrical energy and providing electrical power to the electrical motor at a second range of power rates; wherein the energy battery is directly connected in parallel with the power battery and the driving motor such that the electrical energy stored in the energy battery is provided to the driving motor in combination with electrical energy stored in the power battery; and wherein the energy battery substantially continuously recharges the power battery with any excess power not provided to the driving motor; said power source further comprising a battery controller capable of controlling the substantially continuous recharging of the power battery with electrical energy from the energy battery not require by the driving motor; wherein the battery controller utilizes inherent control of the energy battery and power battery, such that the battery controller initially connects the power battery and energy battery in parallel.