Patent ID: 7859202
Filing Date: 2010-12-28
Classification: B60L,H02J,Y02T

Abstract:
1. A method for implementing an energy storage apparatus coupled with an electric motor/generator in a vehicle, the method comprising: electrically connecting a controller between at least one converter and the electric motor/generator, the at least one converter including a first converter input electrically connected to a battery and a second converter input electrically connected to an ultracapacitor; continually monitoring with the controller a state of charge of each of the battery and the ultracapacitor; storing as parameters the current state of charge of each of the battery and the ultracapacitor with the controller and updating the stored parameters as a function of the continual monitoring; monitoring with the controller a power demand of the electric motor/generator; comparing the power demand to the stored parameters and selecting a percentage of the power demand to be supplied by the battery as a function of the stored parameters; powering the electric motor/generator with the controller using electrical power from at least one of the battery or the ultracapacitor; determining with the controller a power absorption parameter of each of the battery and the ultracapacitor to determine a recharge requirement of each of the battery and the ultracapacitor; selecting with the controller at least one of the battery and the ultracapacitor for recharge; and recharging the at least one of the battery or the ultracapacitor with the controller using electrical power generated by the electric motor/generator.