Sizing Electric Motors and Batteries for a Municipal Sweeper
Electrifying a municipal sweeper is a different problem than electrifying a passenger car. A sweeper has to drive itself down the road and run a vacuum turbine, a hydraulic pump, and a water system at the same time — often at low speed, for hours, without a break. That combined load is what actually sizes the battery and motors, not top speed.
This case study works through the complete power budget for a 4.8-tonne compact electric sweeper: tractive forces at highway speed and on a 30% grade, auxiliary loads from the suction fan and hydraulic aggregate, the battery sizing math those loads drive, and the motor and inverter hardware that covers both jobs.