Energy-storage systems for automobile propulsion: 1979 study Volume 3, Battery/fly wheel electric vehicles using advanced batteries

摘要

The effect of applying flywheels to electric vehicles using advanced batteries is determined. The specific energy of the batteries is maximized at the expense of peak-power capability to optimize performance when used with flywheels. The characteristics of battery/flywheel vehicles are determined and compared to all-battery vehicles subjected to the same range and peak-power specifications. Projected improvements in batteries and flywheels are considered over the next 20 y, based on probable and optimistic performance. The results show that flywheels do not necessarily yield a saving in vehicle mass (or range increase for constant vehicle mass). This becomes more apparent as batteries improve with time or approach optimistic performance projections. However, as the vehicle's performance level becomes more demanding, the flywheel becomes more effective for decreasing vehicle mass.