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Battery electric propulsion presents opportunities to recover vehicle kinetic energy and provide: unique integrated regenerative braking options singly and/or in combinations; to further improve vehicle energy economy by methods which are not applicable to conventional internal combustion powered vehicles. There are three basic modes to be considered in the design of regenerative braking systems for battery electric vehicles: service braking, programmable deceleration, and emergency braking. Furthermore, the type of traction motor, the driving schedule, and charging characteristics of the battery pack are essential considerations involved in designing regenerative braking systems for optimal recovery of vehicle kinetic energy and optimal battery pack life.

Battery electric propulsion presents opportunities to regeneratively recover vehicle kinetic energy and provide: unique integrated regenerative braking options singly and/or in combinations; to further improve vehicle energy economy by methods which are not inherently applicable to the conventional internal combustion powered automobile. There are three basic modes to be considered in the design of regenerative braking systems for battery electric vehicles: service braking, programmable deceleration, and emergency braking. Furthermore, the type of traction motor, the driving schedule, and charging characteristics of the associated battery pack are essential considerations involved in designing regenerative braking systems for optimal recovery of vehicle kinetic energy and optimizing battery pack life.