Simplified Battery Discharge Profile Based Upon the Federal Urban Driving Schedule.

摘要

A battery discharge test consisting of twenty steps of five constant power levels was developed by the US Department of Energy sponsored Battery Test Working Task Force. The results of this battery test closely approximate the results obtained from a battery discharge in the hypothetical improved Dual-Shaft Electric Propulsion (IDSEP) van over the Federal Urban Driving Schedule. This battery test (known as the SFUDS79) is described and the results of terminating the discharge at a minimum battery voltage for various batteries are presented and compared to a FUDS discharge. A test termination criteria based upon power limits that would predict the vehicle range over the SAE J227 FUDS test procedure is given and a method of scaling the specific power vs time profile of the test cycle for EV batteries is proposed. The effect of rest periods between discharge cycles from experimental data is also presented. 3 refs., 7 figs., 3 tabs.