Patent ID: 9643510
Date: 2017-05-09
CPC Classifications: B60L,H02J,Y02E,Y02T

Claim:
1. A battery pack charging system, comprising: a user interface, said user interface configured to accept a set of user determined travel information, wherein said set of user determined travel information is comprised of an intended departure time and an intended travel distance; a battery pack mounted within an electric vehicle and coupled to an electric drive train of said electric vehicle; a charging system coupled to said battery pack of said electric vehicle, said charging system configured to charge said battery pack to a specified charge level using a specified charging rate, wherein said specified charge level is selectable over a range of charge levels, and wherein said specified charging rate is selectable over a range of charging rates; at least one sensor coupled to said vehicle, wherein said at least one sensor monitors a driving style, wherein data corresponding to said driving style is accumulated and stored in a memory; and a system controller coupled to said charging system and to said user interface and to said at least one sensor and to said memory, said system controller configured to determine an optimal charge level for said battery pack based one a battery lifetime characteristic and said intended travel distance and said data corresponding to said driving style, said system controller configured to set said specified charge level of said charging system to said optimal charge level, said system controller configured to determine an optimal charging rate for said battery pack and set said specified charging rate of said charging system to said optimal charging rate, wherein said optimal charge level maximizes said battery lifetime characteristic of said battery pack while being sufficient to supply energy to said electric drive train for said vehicle to travel said intended travel distance, and wherein said optimal charging rate maximizes said battery lifetime characteristic of said battery pack while being sufficient to complete charging of said battery pack to said optimal charge level prior to said intended departure time.